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TRANSCRIPT
Soft-Serve Dairll
Queen Freezer-
OPERATORS MANUAL
installation operation
maintenance
Models 917CAB-927CAB-957CAB
_Soft Serve side of 978CAB
ufKtu By H C Duke Son Inc 2116 Eighth Avenue East Moline IIl1nols 61244 (30S) 755-4553 _ us 011 00 COrp 1] a ~1IIlSA
TABLE OF CONTENTS Page
Uncrating and Inspection 3
Electrical Requirements 4
Explanation of Electrical Controls ~ 7
Test of Installation 8
Operation of Machine 9
Pump Operation and Maintenance 1 0
Pump Reassembly and Lubrication 11
Sanitizing Instructions 12
Start-Up Instructions 12
Cleaning Procedure 13
General Information DPR Pump 14
Refrigeration Settings 15
Maintenance and Adjustment 18
Lubrication 18
Break-Away Drawing - Freezer Parts 24
Gear Reducer Parts Breakdown 36
Break-Away Drawing - DPR Pump 40
Trouble-Shooting Chart (Freezer) 42
Trouble-Shooting Chart (Pump) 47
0-Ring Chart Dispensing Heads 49
O-Ring Chart DPR Pump 50
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
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2
NOTE Be sure to completely read and understand this manual before operating this freezer
SAFETY
THIS SAFETY ALERT SYMBOL IDENTIFIES IMPORTANT PeRSONAL SAFeTY MESSAGES IN THIS MANUAL WHEN YOU SEE THIS SYMBOL BE ALERT TO THE POSSIBILITY OF PERSONAL INJURY DO NOT ATTEMPT TO CONTINUE UNTIL THE SAFETY PRECAUTIONS ARE READ AND THOROUGHLY UNDERSTOOD
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244 _ SUPERIOR QUALITY FREIZERS bull SOFT SERVE bull SHAKE bull SLUSH
UNCRATING AND INSPECTION When the unit is received and while the carrier is still present inspect the shipping crate for any damage which may have occurred in transit If the crate is broken or torn or punctured note the damage on the carriers freight bill and notify the carriers local agent immediately
A NOTE Be sure to properly support the machile when removing bolts and installing legs or casters
Remove the crate from the pallet and move the machine as close as possible to the permanent location Remove the shipping bolts on the bottom of the machine (figure 1) and install either the legs or casters (figure 2)
SERVICE CONNECTIONS AND ADJUSTMENTS
If your machine is located between two units of stationary equipment it is recommended that the machine be installed on casters and have flexible water and electrical connections A machine should be accessible from front rear and right side The compressor and water valve are located at the rear by removing the back panel The thermostats and expansion valve are located on the right side of the machine and can be serviced by removing the side panel Electrical controls are located al the front behind the merchanshydising sign On a double head machine the thermostats and expansion valve for the left cylinder are located behind the left side panel All materials and connections must conform to local codes andor the National Electrical Code
INSTALLATION
Your machine must be installed and serviced by an authorized service technician
Place the freezer in the proper location and level the machine This is done by adjusting the legs or casters so that the unit is level side to side and the front is approximately 14 lower than the rear to allow proper drainage from the freezing cylinder
c_ REMOVE HEX HEAD cREWS AND FLAT WASHERS
LEG SiJPPORT
PALLET
LEG~ SUPPORT
SET cREW
LEG
LEG COVER
Figure 1 MaChine bolted to Shipping Base Figure 2 Installing the Mounting Legs
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull sOFT SERVE bull SHAKE bull SLUSH
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4
ELECTRICAL REQUIREMENTS
The phase and voltage of your machine are shown on the nameplate on the rear panel Voltage should be within plusmn10 of voltage indicated on nameplate Request local power company to correct voltage
WARNING
FAILURE TO CONNECT OR SUPPLY -PROPER VOLTAGE TO THIS FREEZER WILL VOID YOUR WARRANTY
SPECIAL NOTE On all Delta three phase circuits wild or high leg must be connected to L2 (red wire)
NOTE All machines single and 3 phase require a neutral line to complete the 115 volt circuit for the mix pump motor
ELECTRICAL CONNECTIONS
WARNING
IN ORDER TO PREVENT ACCIDENTAL ELECTRICAL SHOCK CONmiddot A NECT A POSITIVE EARTH GROUND TO THE SCREW PROVIDED IN THE CONNECTION BOX
You will find the connection box at the rear of the machine
Double CABS must be wired with two power lines Each side of these machines operates individually and separate wiring will allow service on either side without shutting down both sides
FUSES
Use dual element fuses rated at 25 over the full load amperage (FLAJ rating of the machine ReIer to the nameplate on the rear panel 01 the machine As mentioned before all double head machines should be wired and fused as individual units Use a flexible connection when permissible All materials and connections must conform to local codes and lor the National Electrical Code
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline illinOIS 61244
SUPIRIOft QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH iIIU1A
ELECTRICAL SPECIFICATIONS
REFER TO NAMEPlATE ON REAR OF FREEZER FOR ELECTRICAL SPECIFICATIONS
AIR COOLED MODELS
When installing self contained air cooled CAB models remember that the flow of air is from right to left through the upper portion of ttle machine-This means that you cannot have any obstruction on either side of the machine A minimum of six (6) inches clearance on either side is required Anything in this area will reduce the efficiency of these models
When installing all other air cooled cab models remember that the flow of air can either be from the sides through the top panel or from the rear through the top panel In each case a minimum of six (6) clearance must be maintained on either the side panels or the rear panel and the top panel must be free from obstructions Anything (including cone dispensers) in this area will reduce the efficiency of these models
WATER COOLED MODELS
Water cooled Single CAB models will require a 38 MPT water inlet and water waste connection
Water cooled Double CAB models will require a 12 MPT water inlet and water waste connection Both units are tied together so that one water inlet and one water waste is all that is required
All water connections are found on the bottom under the compressor mounting area and are clearly tagged-HWater Inlet and Water Waste It is suggested that a manual shut off valve be installed in the water inlet line at the time of installation
WARNING
DISCONNECT MAIN POWER SUPPLY AND WATER SUPPLY BEFORE BLOWING WATER OUT OF THE CONDENSER
CAUTION ALL WATER COOLED MODELS MUST HAVE CONDENSERS BLOWN OUT IF EXPOSED TO BELOW FREEZING TEMPERATURES AIR PRESSURE OF AT LEAST 20 LBS SHOULD BE PUT THROUGH THE WATER LINES STARTING INSIDE THE WATER VALVE IT IS RECOMMENDED THAT A QUALIFIED REFRIGERATION TECHNICIAN DO THIS
NOTE The water waste connection should be checked periodically to ensure water is not running when the freezer is not in operation
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
5
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TOP Of UNl r MUST BE KEPT CLEAR TO ALLOW AIR EXHAUST
26
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-1f2 MPT WAiER
- Y2 MPT WATfR OUT (WATER C(X)lED UNITS otaX)
ALL CONNECTIONS ARE MADE THROuWi eOTTOtt OF FREEZER
EXPLANATION OF ELECTRICAL CONTROLS SOFT SERVE CAB ELECTRICAL CONTROLS
The fotrowing is an explanation of each switch across the front of the machine
PUSH TO RESETmiddot Your machine is equipped with an electrical overload system so the beater motor is protected against burn out if your machine is stopped by the overload it will be necessary to push the reset button before it will start again If this happens frequently your machine should be checked for proper voltage or any unusual cause of strain on the beater motor
SELECTOR SWITCHmiddot This is a three position switch that controls the following operations
CLEANOUT (to the left) operates the beater motor only This position should be used in all cleaning and sanitizing operations OFF (Center Position) turns off the cylinder refrigeration and the beater motor AUTOMATIC (to the right) activates the cylinder refrigeration the beater motor and refrigeration to cabinet This is the normal operating position for both day and night operation
MIX PUMP SWITCH bull Controls the DPR pump located in the refrigerated mix storage cabinet Turn this switch to the left ON position for operation and to the right OFF position for disassembling cleaning and night operation
THERMOSTAT SWITCHmiddot Controls the day and night refrigeration cycles The DAY position to the left activates the low temperature refrigeration system and allows the beater motor to operate The NIGHT poSition to the right switches the refrigeration system to a medium temperature holding cycle
CABINET SWITCH bull Controls the cabinet refrigeration The cabinet refrigeration is on when the switch is turned to the left and off when turned to the right Cabinet is automatically on when the selector switch is in the AUTO position
TIMERmiddot is a quick freeze switch Turning the timer will bypass the thermostat forcing the compressor and beater motor to operate The timer can be used for quick start ups in the morning or for fast recovery when large portions are dispensed
CAUTION EXCESSIVE USE OF THE TIMER CAN CAUSE YOUR MACHINE TO FREEZE UP USE ONLY WHEN NECESSARY
RED PILOT LIGHT
When this light is on it is an indication that the compressor is running This can only be on when the Selector Switch is in the AUTO position This light should never be on when anything but approved product is in the freezer (never on when water sanitizer or milkstone remover is in the freezer)
AMBER PILOT LIGHT
When this light is on the agitator drive motor is running This may be on when the Selector Switch is in the CLEAN or AUTO position Whenever the red pilot light is on the amber should also be on
DIAL THERMOMETER
This is an indication of the approximate temperature of the evaporator It should be viewed as an indication of how well the freezer is operating Once familiar with the normal operating measurement (usually between 5 and 15 deg) it is easier to detect unusual or abnormal functions of the freezer Observation of the thermostat often during each day 01 operation is a goOd habit for all operators This is not a measurement of prOduct temperature
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline lInol5 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SWSH PrioMd Ull II
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CAUTION SWITCHES 1 2 and 4 DO NOT SHUT OFF THE SUPPLY OF POWER TO THE MACHINE THIS ONLY PREVENTS THE CONTROLS FROM OPERATING IF ANY
A ELECTRICAL REPAIRS ARE REQUIRED DISCONNECT THE MAIN POWER SUPPLY TO THE MACHINE AT THE CONTROL PANEL OR FUSE PANEL
PLUNGER SWITCHmiddot This switch only works in the day mode when the selector switch is in the AUTO position When the dispensing handle is pulled down the plunger switch rod raises and engages the plunger switch to turn on the beater motor and compressor The plunger switch activates the time delay and overrides the thermostat When the dispensing plunger is returned to the closed position the machine will continue to run for 12 seconds on the time delay and will then turn off unless the termostat requires additional refrigeration
DISPENSING SPEED ADJUSTMENT
WARNING
A MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFF POSImiddot TION AND THAT THE MAIN POWER SUPPLY IS DISCONNECTED
All soft serve machines have a dispensing speed adjustment To make this adjustment it is necessary to remove the merchandiser and cover from in front of the electrical box Upon removal of this panel you will see the plunger switch mounting bracket (see page 26) At the top of this bracket is the adjusting screw After loosening the lock nut adjust the screw as required The further down you turn this screw the slower the product will come out If you do this with patience you can adjust the machine to the point where the unit cannot be outdrawn (turn to a product that is too soft)
CAUTION ADJUSTING THE SCREW TOO FAR DOWN CAN CAUSE THE MACHINE TO FREEZE UP
TEST OF INSTALLATION
Remove the dispensing head and beater shaft (See Washing Instructions) so that the unit can be tested Turn on the pump switch (pump cover must be in place) to insure that the pump is running turn switch off Turn the following switches on in this order (1) Thermostat switch DAY (2) Cabinet Switch ON and (3) selector switch AUTOMATIC Let the unit run and at this pOint check beater rotation (clockwise from front) frost line in cylinder (front to back) and cabinet refrigeration Allow the unit to run until it shuts of automatically Should you have a short cycle (machine turns on then off every 10 or 15 seconds) check the water inlet manual valve Insufficient supply of water to the machine will give you this short cycle After the machine turns off automatically turn the selector and cabinet refrigeration switch OFF Cabinet refrigeration system will not operate when cabinet door is open
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Molme illinOIS 61244
SUPERIOR QUALIlY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
OPERATION OF MACHINE DISASSEMBLY AND WASHING
Your Soft Serve machine has been completely tested at the factory It is important that the machine be dismantled washed and lubricated before operation
CAUTION ALL CONTROL SWITCHES MUST BE IN THE OFF POSITION AND THE MAIN POWER SUPPLY DISCONNECTED FOR DISASSEMBLY AND REASSEMBLY BE SURE THE MACHINE IS DEPRESSURIZED BEFORE PROCEEDING (See page 13)
Refer to pages 37 38 and 39
Remove the plunger switch rod by lifting this rod up and swinging the bottom portion out and then pulling down Place the plunger switch rod on the drip tray Remove the two hand knobs and pull the head assembly straight out You will find that this is tight as there is an a-ring on this head Remove lever pin pull out handle and plunger
Remove cylinder bushing and pull out the beater shaft holding the knives as you do so Remove rear seal from shaft Take the head and beater shaft assemblies to the washing area Wash all parts thoroughly in a warm detergent solution and then rinse Wash the drain tube and cylinder using the brushes supplied
NOTE Do not dry any parts - reassemble them wet or allow to air dry
NOTE All O-rings must be removed in order to properly wash parts
Remove the DPR Pump from the cabinet in the bottom of the freezer Details on this are given in the pump section of this manual on pages 9-10 following
LUBRICATION AND REASSEMBLY
NOTE We recommend using Petrol Gel or equivalent
Lubricate the a-ring inside the rear seal Place it on the shaft so cup side will be against back of freezing cylinder DO NOT LUBRIGA TE THE GRAY RUBBER SEAL This seal is held under tension against the back of the cylinder when the beater and door are in place The cup seal remains stationary while the shaft turns freely in the plastic bushing Place both blades on the beater shaft and slide the beater into the cylinder Make sure the blades are installed properly The portion of the blade containing 2 knobs should face away from the cylinder walls When inserting the beater place the rear blade on the bottom of the cylinder This will center the beater and allow alignment with the drive coupling Push the beater shaft in and rotate until beater is engaged in the drive coupling The front of the beater shaft when engaged in coupling should be about 12 inside the cylinder Lubricate the inside surface of the cylinder bushing and install in cylinder
CAUTION ALWAYS MAKE SURE THAT THE BEATER BUSHING IS ON THE FRONT OF THE BEATER SHAFT OPERATION WITH A MISSING OR BADLY WORN BEATER BUSHING WILL DAMAGE THE BEATER AND CYLINDER
Lubricate the a-rings on the dispensing plunger and insert the plunger half way into the head Insert the plunger handle and lock in place with the lever pin Lubricate the 4 a-ring and slide the head assembly over the two cylinder studs Replace the two hand knobs and tighten the head on the cylinder DO NOT overtighten the knobs If leakage occurs check the 4 a-ring Replace the plunger switch rod
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALllY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
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10
DPR PUMP OPERATION AND MAINTENANCE A CAUTION ALL CONTROL SWITCHES MUST BE IN THE OFF POSITION AND THE MAIN POWER SUPPLY DISCONNECTED FOR DISASSEMBLY AND REASSEMBLY
DISASSEMBLY
Step 1 - Reference DPR pump breakdown pages 40 and 41 for assistance in identificashytion of pump parts and their associated reference numbers If the pump has been in operation be sure that it is depressurized before proceeding to step 2
Step 2 - Remove attached mix hoses and pump cover (Ref 46)
Step 3 - loosen the thumb screw (Ref 18) and swing away the clamp (Ref 16) Carefully remove the entire pump assembly from the pump support (Ref 2)
Step 4 - Remove wing nuts diaphragm housing and diaphragm (Ref 41 42 and 43)
Step 5 - Further disassemble the pump by removing the piston assembly including the piston connecting rod and wrist pin (Ref 20 21 and 23) Separate the wrist pin and connecting rod from the piston Remove the curved air tube air meter outlet hose adapter and cylinder (Ref 24 31 44 and 45) from the valve housing assembly (Ref 27)
Step 6 - Grasp the outlet hose adapter asembly (Ref 31) and remove the keeper (Ref 39) while pressing inward on the drain port (Ref 35) Carefully lift and remove retainer clip (Ref 30) Caution must be exercised when removing the retainer clip as the relief mechanism parts (Ref 33 34 and 35) are spring loaded Remove the piston spring and drain port
Step 7 - Remove all a-rings rubber sleeve (Ref 29) and washer valve (Ref 25) All parts disassembled in steps 2 through 7 should be washed thoroughly in a solution of mild detergent and water not exceeding 120deg F Rinse all parts
NOTE All O-rings must be removed in order to properly wash parts
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Mohne illinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
LUBRICATION AND REASSEMBLY
Reassemble by reversing the steps on page 10 and lubricate as follows
When replacing the flat rubber washer (Ref 25) DO NOT LUBRICATE Important -This rubber washer acts as the air and mix check valve and must lie flat against the top of the pump valve housing Install it over the mushroom cap and move it around to make sure that it is sealed Ins~n the sleeve (Ref 29) Like the washer valve this should not be lubricated and fits on the pump valve housing with the tapper to the bottom
All the O-rings on the pump should be lubricated lightly The O-ring on the piston (Ref 21) should be lubricated liberally as this is the major wearing O-ring and must provide a good seal
Install the O-ring and spring on the piston (Ref 33) Lightly lubricate the O-ring (only enough to make it shiny) Install the piston with the O-ring end in first Lubricate the O-ring on the drain port and install it in the adapter Push in on the drain port and slide the clamp over the top to lock it in place Place the keeper (Ref 39) over the exposed end of the drain port and install the hose and clamp on the drain port Install the pressure switch diaphragm in the diaphragm housing
The pressure switch diaphragm (Ref 43) requires no lubrication
Install the diaphragm housing and diaphragm on the two studs and tighten wing nuts hand tight Install the pump assembly on the bracket-drive assembly in the refrigerated cabinet The shoulder of the white bushing (Ref 19) faces the drive cam (Ref 13) when slid into place properly Be sure to insert the mix output body (Ref 31) over the diaphragm housing (Ref 42) Return swing and adjusting clamp to closed position and tighten thumb screw Replace mix hoses and tighten all hose clamps
NOTE The pump will not operate without the cover (Ref 46) in place
WARNING
MAKE SURE ALL HOSE CONNECTIONS AND THE SWING A CLAMP ARE TIGHT BEFORE PRESSURIZING MACHINE THIS SYSTEM PRODUCES 30-32 PSI DURING NORMAL OPERATION
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MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH PrIntId USA
12
SANITIZING INSTRUCTIONS
The washing and sanitizing instructions explained in this manual are required to maintain a clean sanitary machine Your Soft Serve machine should be disassembled cleaned and sanitized to insure the best possible product and machine operation
Prepare a solution of sanitizing water (for each barrel) in a 2-3 gallon container (Solution should be 200 PPM chlorine using Diversol or equivalent) Place the container in the refrigerated cabinet and insert the mix inlet hoSe or stainless steel mix tube in the sanitizer Turn the pump switch ON (located at front of machine) and allow the pump to build up pressure and shut off automatically Turn the selector switch to the CLEAN OUT position and allow the beater to run for 5 minutes This insures the sanitizing solution touching all of the internal parts Placing a container under the dispensing head release the solution from the cylinder by depressing the dispensing handle Do this slowly as the cylinder is under 30 pounds pressure HINT Remove serrated nozzle (Ref 2) for this operation Sanitize nozzle and install when mix is ready to be dispensed Leave the dispensing handle down until the pump has forced all or most all of the solution through the machine When completed turn the selector switch and pump switch OFF You are now ready to start your freezer
You are working with a pressurized machine Always check for possible leaks when sanitizing your machine A leak around the head is obvious and usually calls for the replacement of the dispensing head O-rings A leak in the shaft seal will flow out of the drain tube just below the dispensing head This usually requires the replacement of the shaft seal or shaft seal O-ring Any leakage in the pump would require that the O-ring be replaced at the point of leakage
NOTE Sanitizing is always done prior to starting the machine Never sanitize the day belore and let the machine sit overnight
START UP INSTRUCTIONS
After sanitizing immediately fitl the container with mix Place the mix inlet hose or stainless steel mix tube in the container of mix (If you are using a plastic bag container supshyplied by the dairy it is recommended that you notch the plastic hose or use a perforated mix can tube so that the bag cannot be drawn into the mix inlet restricting the flow of mix If not careful a hole can be made in the bag) Sanitizer will remain in the pump mix hose and cylinder Turn the pump switch on starting the pump and depress the dispensing handle opening the dispensing plunger Leave the dispensing plunger open until you receive
pure mix at the nozzle The mix will push the remaining sanitizer out of the machine if the plunger is left open Close the plunger after removing all remaining sanitizer (See page 20)
After the cylinder is pressurized and the pump has shut off place the selector switch in the AUTOMATIC position At this pOint make sure the cabinet switch is at the ON position and the thermostat switch is at the DAY position Allow the machine to cycle and freeze down Normally several refrigeration cycles will be needed before a frozen product can be dispensed
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
It is impossible to start the freezer and not have excess air in the cylinder Since you have air in the cylinder and the pump is also adding air to the mix on first start up you will have air pockets in the cylinder These pockets can be eliminated if after two or three cycles you will turn the selector switch to the OFF position Pump switch must be at ON position With the selector switch off slowly open the dispensing plunger and bleed off the excess air until liquid mix comes out the dispensing head Close dispensing handle allow the cylinder to fill and turn selector switch to AUTOMATIC At least 30 minutes cycling time should be allowed to insure a ready produ~l
CLEANING PROCEDURE - DRAINING MACHINE
Place selector switch on the front of the machine to CLEAN OUT and let the beater run for about five minutes This will allow the product in the cylinder to soften up Place a clean sanitized container under the dispensing nozzle and very slowly draw off the semishyfrozen cream until liquid mix appears at the nozzle Remove the stainless steel mix tube or mix hose from the mix container Leave the dispensing plunger open until all the mix has run out of the cylinder and place the container in the cooler for storage Place the mix inlet hose in a container of cold water allow the cylinder to pressurize and flush the machine with the selector switch on CLEAN OUT Follow with a container of warm water until machine is rinsed clean Place the selector switch and pump to OFF Refer to disassembly instructions (Ref page 9)
WARNING
YOUR SOFT SERVE MACHINE OPERATES ON 30-32 POUNDS PRESmiddot A SURE NEVER DISMANTLE ANY PART OF THE MACHINE UNLESS THE MACHINE HAS BEEN DEPRESSURIZED THE SELECTOR
SWITCH IS IN THE OFF POSITION AND THE MAIN POWER SUPPLY HAS BEEN DISCONNECTED DEPRESSURIZE THE CYLINDER BY OPENING THE SPIGOT WITH THE PUMP SWITCH IN THE OFF POSITION
CLEANING MIX HOSE
The CAB models use the DPR mix pump You must disconnect the mix hoses and clean them thoroughly USing a long handle brush and a suitable cleanersanitizer you must brush the interior of the mix hose to insure there is no build up of product on the walls of the hose Water temperature for this cleaning process should be 1800 F to meet some health codes After reassembly pump sanitizer through the hoses
Mfg by H C DUKE amp SON INC 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
13
14
GENERAL INFORMATION OVERRUN ADJUSTMENT
The overrun on your CAB machine equipped with a DPR pump is regulated by the air meter (Item 45-pump parts breakdown) You are supplied with three air metering plugs each containing a different size orifice The smaller the hole the lower the overrun The larger the hole the higher the overrun The orifice or hole in this air meter must be open at all times It is the only source of air into the freezing cylinder Check this daily
The mix will be a determining factor as to the amount of overrun you will be able to achieve Some mixes will accept more air than others thus regulating the size of air meter you can use Test to see which air meter will give you the best overrun and the best tasting shake Run each air meter for one day until you make the determination You may have a slightly higher overrun when you first start up the machine When the machine has run long enough to dispense at least one full cylinder of product you will have the overrun that the machine wil hold the remainder of the day
ADJUSTING PUMP PRESSURE
Only to be performed by a qualified service technician
A WARNING
DISCONNECT MAIN POWER SUPPLY BEFORE REMOVING PANELS
NOTE The pump will not operate without the cover in place
The DPR Pump is controlled by pressure in the mix line acting on the diaphragm (Ref 43) As the pump fills the freezer cylinder with mix pressure builds causing the diaphragm to expand As the diaphragm expands it contacts the button (Ref 51) which in turn depresses the pump pressure switch (Ref 60) The pressure switch button moves inward until the switch is opened turning off the pump motor When product is drawn from the freezer the diaphragm closes the pump pressure switch allowing the pump motor to restart Pump pressure will check the same with air mix or water We suggest the pressure be checked with air pressure only
Step 1 - Remove the rear panel from machine and the pump electrical box cover (Ref 6)
Step 2 - Locate the pressure adjusting nut (Ref 59) Turn the adjusting nut clockwise to increase pressure or counterclockwise to decrease pressure Usually one half turn of the adjusting nut will raise or lower the pressure of the model DPR pump two (2) PSIG
Step 3 - Install a quality pressure gauge in the mix output line Turn main power supply and pump switch to ON pOSition Caution Electrical power present through entire machine Allow the pump to pressurize until it shuts off automatically Observe the gauge pressure reading and disconnect main power supply Repeat the adjustment steps 1 through 3 until the proper pressure is obtained (30 to 32 PSIG) Reinstall the electrical box cover and rear panel
NOTE Pressure tine must be at least 6 fI long in order to obtain an accurate reading
A Pressure Gauge PIN 112791 may be purchased from your local distributor
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
PRESSURE RELIEF ASSEMBLY
The model DPR Pump incorporates a self contained safety pressure relief system The parts included in this assembly are (Ref 30 through 39) Any discharge of mix through the hose (Ref 37) is an indication of excessive pump pressure For corrective action refer to the trouble shooting section of this manual
REFRIGERATION SETTINGS
A WARNING
DISCONNECT MAIN POWER SUPPLY BEFORE REMOVING PANELS
The CAB Soft Serve machine contains two types of temperature control devices the expansion valve and the thermostat (explained in Thermostat Section) The expansion valve meters the flow of refrigerant to the cylinder and must be set correctly to give you maximum production
To locate the expansion valve remove the side panel On the single head CAB machines remove the right side panel The double head machines will have an expansion valve behind both right and left side panels
The expansion valve should only be adjusted by a refrigeration technician with refrigeration test gauges connected to the compressor Adjustments to the valve are shown in the following chart
REFRIGERATION SETTINGS MODEL TYPE OF COOUNG WATER AIR 917CAB 927CAB 957iAa I
Cyl Suction Pressure Rmiddot502 15middot17 (PSIG) 15-17 (PSIG)
9711CAS Cyl Suction Pressure R-502 15middot17 (PSIG) 15middot17 (PSIG)
ALL SOFT SERVE
CABS
Cab Suction Pressure Rmiddot502 Head Pressure Thermostat Differential
8middot10 (PSIG) 230-240 (PSIG)
17degmiddot22deg 7deg~8c
8-10 (PSIG) 230middot315 (PSIG)
17deg_22deg 7c -8deg
NOTE To correctly set the cylinder expansion valve the cabinet thermostat switch An must be in the OFF position (Full counterclockwise) with the compressor running
NOTE To correctly set the cabinet expansion valve the selector switch must be in the OFF position and the cabinet switch in the ON position (With the compressor running)
A refrigeration test gauge must be used when adjusting the suction pressure To reduce the suction pressure turn the adjustment screw on the expansion valve counterclockwise Do not turn more than 14 turn at a time Let the unit operate a sufficient length of time - at least two minutes - to properly read on the gauge the adjustment made
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline illinOIS 61244
SUPERIOR QUAUTY FREEZERS bull SOFt SERVE bull SHAKE bull SLUSH
15
16
THERMOSTATS
A WARNING
DISCONNECT MAIN POWER SUPPLY BEFORE REMOVING PANELS
Thermostat Au is the cabinet refrigeration thermostat The cabinet thermostat operates off of both the day and night switch operation to maintain 44 0 F or lower in the mix storage cabinet This thermostat can be adjusted by rotating the adjustment knob To set this thermostat colder turn the adjustment knob clockwise
CYLINDER THERMOSTAT
The cylinder thermostat is located behind the right side panel (on single head CABs) faCing the front of the machine On the double head CABs like the expansion valve a cylinder thermostat is located behind both the right and left side panels This control has two settings The first is the differential which should be set on 7-8deg F The other side of the control marked HIGH EVENT should be set between 17-220 F
The purpose of the cylinder thermostat is to maintain an 18deg F product during idle periods If the thermostat is set too cold and product is not drawn out of the machine a freeze up condition will result DO NOT run the product below 17deg F
NOTE The settings on the thermostat are ONLY to be used as a guide
For a correct adjustment a thermometer must be used to check the actual product temperature Each thermostat should be set in the field for the product being used Most of the time a temperature setting of between 18deg and 19deg F will maintain a satisfactory product Once the thermostat is set for the mix used it should require no further adjustment
MIg by H C DUKE amp SON INC 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH P~IIIIUSA
THERMOSTAT_________ Turn knob clockwise to make product colder
Differential adjustment
copy
COLDER ~ reg
copy5
2 6Igt
1 7 OFF
copy
THIS ASSEMBLY USED ON LEFT SIDE OF UNIT
RIGHT SIDE USES THIS ASSEMBLY WIO THERMOSTAT A (CAB THERMOSTAT)
MIg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
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18
MAINTENANCE AND ADJUSTMENT
ONLY TO BE PERFORMED BY A QUALIFIED SERVICE TECHNICIAN
WARNING
MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFF POSITION AND THAT THE MAIN POWER SUPPLY IS DISCONNECTED BEFORE REMOVING PANELS
LUBRICATION INSTRUCTIONS
FAN MOTOR (Air Condenser) Lubricate annually with SAE 10 motor oil in the oil cups
CAUTION DO NOT OVER-LUBRICATE OVER-LUBRICATION CAN DAMAGE MOTOR
GEAR REDUCER The gear reducers are heavy duty worm-geared units manufactured to HC Duke specifications II traces 01 oil are found in the immediate area around the reducer repair the leak (usually an oil seal) and check the oil level When adding oil use only synthetic gear lube in the reducer
NOTE This is a special oil and will not mix with a petroleum base oil Contact your distributor when this oil is needed This oil should be changed at least once a year
OIL LEVEL PLUG
PROPER OIL LEVEL
OIL DRAIN USE SPECIAl PLUG OIL ONLY
USE SPECIAL LOILON=LY-- I
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH ~1U8A
MAINTENANCE AND ADJUSTMENT ONLY TO BE PERFORMED BY A QUALIFIED SERVICE TECHNICIAN
WARNING
MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFFA POSITION AND THAT THE MAIN POWER SUPPLY IS DISCONNECTED BEFORE REMOVING PANELS shy
BEATER MOTOR Beater motors are either single or three phase Capacitor starting is used on the single phase units The beater motor should be inspected and cleaned
WATER COOLED CONDENSER Depending on the condition of your water the condenser on your CAB machine may require cleaning from time to time Usually a restricted flow of water resulting in a high head pressure indicates a dirty condenser The condenser should be flushed out with an acid solution by a qualified service technician
AIR COOLED CONDENSERS At least once a month the face area of the condenser should be inspected for accumulation of dirt and dust Surface dust and dirt can usually be removed with a stiff brush andor vacuum cleaner After brushing hold a light between the fan blades and look through the condenser from the opposite side This procedure will locate those areas where accumulated dirt has lodged between the condenser fins To clean these areas obtain a small tank of nitrogen or C02 with a needle control valve or pressure regulator with a small hose attached and proceed as follows
(1) Place a damp towel or cloth over the face area of the condenser
(2) Open the control valve or regulator on the tank releasing pressure to the coil from the back side cleaning the condenser
(3) Check the condenser periodically with the light and continue the treatment until the fins are clean
For maximum performance replace all worn O-Rings Seals Blades etc
CAUTION USE ORIGINAL OR AUTHORIZED REPLACEMENT PARTS ONLY WITH THIS FREEZER
Mig by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline illinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
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20
PULLEY ALIGNMENT AND BELT TENSION ONLY TO BE PERFORMED BY A QUALIFIED SERVICE TECHNICIAN
WARNING
A MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFF POSITION AND THAT THE MAIN POWER SUPPLY IS DISCONNECTED
Remove the side panels to expose the pulleys and belts
Check the alignment of the beater motor pulley and gear reducer pulley by placing a straight edge across the faces of the two pulleys If the pulleys are not aligned adjust as necessary until proper alignment is obtained
Depress the belts with a finger at a point midway between the two pulleys When properly adjusted the belts should depress 12 from its normal position with approximately 5 pounds of pressure If the belts are too tight or too loose adjust as necessary until proper belt deflection is obtained Loosen four (4) bolts which hold the motor mounting plate to the frame With these loose adjust tension bolt in or out as required to obtain proper belt tension Retighten bolts
BELTS
Periodically inspect the belts If they are worn excessively replace both belts For best results it is advisable to replace both belts as they are manufactured in matched sets
SCRAPER BLADES
NOTE Be sure to purge all of the sanitizer from the mix system before operating the freezer (see page 12) Failure to completely remove sanitizer or water trom the freezing cylinder before placing the machine in the Automatic position may cause blade breakage and damage the freezer
o o
NEW BlADE WORN BLADE
Replace blades if worn 316 or more
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
END PLAY FOR BEATER DRIVE COUPLING
It is very important that the drive coupling located on the gear reducer be set properly Referring to the Drive Coupling Illustration the following procedure should be followed in setting the end play
WARNING
MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFF POSITION AND THAT THE ELECTRICAL POWER TO THE MACHINE IS DISCONNECTED SO THAT THE UNIT WILL NOT OPERATE
------
DRIVE COUPLING ILLUSTRATION
REF DESCRIPTION REF DESCRIPTION 1 Gear Reducer 6 Reducer Mounting Plate 2 Beater Shaft 7 Set Screws 3 Shaft Seal 8 Bolt Gear Reducer 4 Drive Coupling 9 Bolt Reducer Mounting Plate 5 Spacer 10 Key
11 Output Shaft
Improper drive coupling spacing will damage the beater shaft dispensing head and drive coupling When checking end play settings or replacing a coupling proceed as follows
REMOVING COUPLING
WARNING
DISCONNECT MAIN POWER SUPPLY
Mig by H C DUKE amp SON INC bull 2116 Eighth Allenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SO SERVE bull SHAKE bull SLUSH
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22
(1) Remove Beater Shaft (Ref 2)
(2) Remove both drive belts (not shown)
(3) Remove gear reducer bolts (Ref 8) Six (6) bolts are located around the face of the reducer
NOTE Remove the top bolt last holding the bottom of the reducer as you do so
(4) Remove the gear reducer (Ref 1) and place-on table or bench
(5) Replace two (2) bolts (Ref 8) one (1) at the top and one (1) at the bottom so that the reducer cover will not come off while the coupling is changed
(6) Loosen the four (4) set screws (Ref 7) and remove the drive coupling (Ref 4) Should the coupling be stuck tight to the ouput shaft lightly tap the coupling from the back with a hammer and bar Sometimes due to age this coupling will stick so tight it will have to be removed with a pulley removing tool or a wheel puller
(7) Remove the key (Ref 10)
INSTALLING THE NEW COUPLING
(1) Clean gear reducer output shaft (Ref 11) with fine emery cloth and slide the new drive coupling on the reducer shaft The coupling should slide on the shaft all the way without the key If the coupling doesnt slide completely on check both coupling and reducer shaft for burrs When a smooth sliding fit is achieved remove coupling and proceed with final assembly
(2) Place key (Ref 10) in keyway slot on the reducer output shaft Keep the key flush with the front end of the output shaft (Ref 11)
(3) Slide the coupling (Ref 4) on the output shaft until it bottoms out on the shaft Leave the four (4) set screws loose as the coupling will have to be adjusted
(4) Remove the two (2) bolts added in preceding Step 5
(5) Place one (1) gear reducer bolt (Ref 8) in the top hole of the cylinder mounting plate
(6) Insert gear reducer into cylinder mounting plate and start top bolt (Ref 8) Do nol tighten completely Now insert the other bolts one at a time When all bolts are in tighten each boll
NOTE Due to very close tolerance between the gear reducer and cylinder mounting plate no alignment is required when Installing the reducer When the reducer bolts are tightened the reducer will seH-align with the cylinder
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
(7) Insert the beater shaft (Ref 2) with the shaft seal and blades into the cylinder and engage beater shaft in the drive coupling Place bushing on front of beater shaft
(8) Tape a dime (10 cents) to the back of the dispensing head in the very center at the point where the beater shaft touches the dispensing head The dime is used to acquire the proper end play setting on the drive coupling which is approximately 332
(9) Place the dispensing head into the cylinder and tighten with the hand knobs Important make sure hand knobs are tight and head is against the end of the cylinder tube
(10) Slide the drive coupling (Ref 4) forward until it is tight against the beater shaft and lock into place the four (4) set screws (Ref n
(11) Remove the dime from the back of the dispensing head
(12) Replace the drive belts
(13) Turn on electrical power
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
23
PANEL BREAKDOWN - 917CAB
~--~
3
REF PART No 1A 114544 1B 112991 2A 136075 2B 136102
3A 137027 3A 137028
3A 136105 3B 136103
3B 134817 4 134818
4 136101 5A 114780
5A 113570 5B 112967
6 112960 7 133291
24 A 917CAB only
I
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DESCRIPTION Frame ssmiddoty Frame ASsmiddoty Lower Side Panel Lower Side Panel LH Side Panel RH Side Panel Upper Side Panel Upper Side Panel Upper Side Panel Rear Panel Rear Panel Top Cover ASsmiddoty Top Cover ASsmiddoty Top Cover ASsmiddoty Filler Panel ASsmiddoty Top Filler Strip
B bull 44 CAB only
~
[At 16 lt0
REF 8
9 10 11 12 12A 13
14 15 16 16A
Air Cooled only
PART No DESCRIPTION 132687 Dispense Panel 134247-01 Dispense Panel Cab-W
Drip Tray (See Pg 35) 114260-01 Door Assmiddoty wIHinges 132444-01 Left Hand Filler Strip 162045 Upper Hinge 162052 Spring LH 162046 Lower Hinge 160026 Screw 160020 Bolt 160139 Washer 110205 Syrup Jar Enclosure 160563-01 Door Gasket 01-Groove) 159174 Drip Tray Button 160293 Clip for Button
Water Cooled only
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
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REF PART No DESCRIPTION REF PART No DESCRIPTION 1 114538 Frame Assy 10 162045 bull Upper Hinge 2 136289 Side Panel LH lOA 162052 Spring LH 3 136313 Rear Panel 11 162046 Lower Hinge 4 114006 Top Panel AC llA 160026 Screw 4A 114428 Top Panel WC l1B 160020 Bolt 4B 114157 Top Panel AC Remote l1C 160139 Washer 5 113983 Front Panel Assy 927CAB 12 136216 Side Panel RH 5A 113985 Front Panel Assy 957cAB 13 160563 Door Gasket (V-Groove) 6 130021 Rear Corner Channel RH 14 159174 Drip Tray Button 6A 135254 Rear Corner Channel LH 14A 160293 Clip for Button 7 137228 Dispensing Panel 162108 Stop Pin (Screw In) 8 Drip Tray (See Pg 35) 136199 Door Pull 9 114260 Door Assy wHinges
25
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
SOFT SERVE CAB ELECTRICAL BOX
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 Contactor (Order By Freezer 5 150463 Selector Switch
Serial Number) 6 159235 Toggle Switch (Pump) 2 Overload (Order By Freezer 7 150456 Spigot Switch
Serial Number) 7A 136124 Button - Spigot Switch 2A Heater Coil (Order By Freezer 7B 162302 Spring - Spigot Switch
Serial Number) 8 150553 Pilot Light - Amber 3 Starter (Order By Freezer 9 150552 Pilot Light - Red
Serial Number) 10 161026 Thermometer (Not Shown) 4 150208 Timer
26
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Pointed u
- - --- -
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prifllcl If USA
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SOFT-SERVE - SINGLE HEAD CAB
REF PART No 1 151351
2 3 4 5 6 151044
151052 7
8 155039 9 155400 10 155117
11 151084
12A 159021 13 155401 13A 155423 14 155403 15 155422
16 154976 16 154975 17 159203 18 155051 19 112901
155410 20 155044
151348
DESCRIPTION Capacitor Relay Assembly (single phase)
150247 Start Capacitor
150249 Run Capacitor 150245 Relay Motor Capacitors (order by freezer serial no) Gear Reducer (see gear reducer breakdown page 36) Driven Pulley (order by freezer serial no) Belt (order by freezer serial no) Motor 1-phase 230 volt Motor 3-phase 208230 volt Driver Pulley (order by freezer serial no)
Water Condenser Automatic Expansion Valve (Cylinder) Air Condenser
Condenser Fan Motor
Condenser Fan Blade High Pressure Cut-Out shyHigh Pressure Cut-Out shyLow Pressure Cut-Out Solenoid Valve
Compressor 230160
AC WC
Compressor 208-230360 Sight Glass Drier (38) Receiver Tank Assembly Water Valve (not shown) Service Valve Compressor Mounting Kit
Note I) lt0 For All 50-Cycle Freezers Order By Freezer Serial Number
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Printad I usA
30
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SOFT-SERVE - DOUBLE CAB - WATER COOLED REF PART No DESCRIPTION 1 155026 Water Condenser (B-side) 1 A 155039 Water Condenser (A-side) 2 159203 Sight Glass 3 155051 Drier (38) 4 155400 Automatic Expansion Valve (Cylinder) 5 Gear Reducer (see gear reducer breakdown page 36) 6 155410 Water Valve 7 155423 High Pressure Cut-Out 8 155403 Low Pressure Cut-Out 9 154976 Compressor 230160
151351 Capacitor Relay Assembly (Single Phase) 150247 Start Capacitor 150249 Run Capacitor 150245 Relay
9A 154975 Compressor 208-230360~-11 NOT USED ON THIS MODEL 12 155442 Low Temp Control 13 Driven Pulley (order by freezer serial no) 14 Belt (order by freezer serial no) 15 Driver Pulley (order by freezer serial no) 16 155422 Solenoid Valve 17 151044 Motor 1 phase 230 volt 17A 151052 Motor 3 phase 208230 volt 18 Motor Capacitors single phase only (order by freezer serial no)
Note For All 50-Cycle Freezers Order By Freezer Serial Number
cgt
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH _InU5A
32
c W J o o o -a oCt
aI oCt o W I m ) o c w gta w Ch t--LL o Ch
SOFTmiddotSERVE bull DOUBLE CAB - AIR COOLED REF PART No 1 155120 2 159020 3 151080 4 155400 5 6 159203 7 155051 8 112901 9 151044 9A 151052 10 11 12 14 154976
14A 154975 15 155401 16 155403 17 155443 18 155442 19
21 155422
DESCRIPTION Condenser Fan Blade Fan Motor Automatic Expansion Valve (Cylinder) Reducer (see gear reducer breakdown page 36) Sight Glass Drier Receiver Assembly Motor 1-Phase 230 Volt Motor 3-Phase 208230 Volt Driven Pulley (order by freezer serial no) Belt (ordr by freezer serial no) Driver Pulley (order by freezer serial no) Compressor 230160 151351 Capacitor Relay Assembly (Single Phase)
150247 Start Capacitor 150249 Run Capacitor 150245 Relay
Compressor 208-230360 High Pressure Cut-Out Low Pressure Cut-Out Cabinet Thermostat Low Temp Thermostat NOT USED ON THIS MODEL Motor Capacitors single phase only (order by freezer serial no) Solenoid Valve
Note For All 50-Cycle Freezers Order By Freezer Serial Number
Vl Vl
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prinled In USA
CAB PARTS BREAKDOWN
REF PART No DESCRIPTION PART No DESCRIPTION 1 155109 Cabinet Coil 136297 Condensate Pan (Not Shown) 1A 155113 Motor Cabinet Fan 196092 Mix Tank 7-12 Gal 1B 155099 Fan Blade Cabinet Coil 113997 Front Lid Mix Container
7-12 Gal 136248-01 Rear Lid Mix Cont 7-12 Gal
10 155416 CAB Automatic Expansion 130092 Mix Tube Valve 196028 Mix Tank 10 Gal
137119 Probe 11 -1 4 shy1E 155114 Fan Grill amp Bracket 7-12 Gal Container 1F 155116 Knob 137119-01 Probe 10-34 shy2 113898 DPR Pump Less Motor 7-12 amp 10
(see pump breakdown Gal Container pg 38) 137119-02 Probe 10-14 shy
3 196061 Mix Hose (sold by the foot) 10 Gal Container 4 150416 Door Switch 137120 Base Probe Mtg 4A 114630 Actuator Door Switch 160500 O-Ring
(Not Shown) 114572 Hose Clamp (Not Shown) 5 150527 Retractable Cordset 34
MIg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prlmd UsA
MERCHANDISING ASSY
PART No 115108 115107
PART No
196107-01 196108-01 114610 114608 115132 199030
PART No 162105 162106 112978 158004 158021 158022 158078 158000 158056 158000A 158014 158014A 161000 158049
DESCRIPTION 2S Merchandiser-927-957-978CAB 24 Merchandiser-917CAB
DRIP TRAY
DESCRIPTION
24 Drip Tray-917CAB 26- Drip Tray-927-957-978CAB 24 Tray Insert-917CAD 26 Tray Insert-978CAB-927CAB 26 Tray Insert-957CAB Rubber Bumper (only)
DESCRIPTION Caster With Brake Caster Without Brake Leg-6 4 Cylinder Brush Mix Hose Brush 58 Dia w6 Ft Handle 14 Pump Brush Drain Tube Brush Petrol Gel (12 tube carton) Petrol Gel (6 tube carton) Pe1rol Gel (per tube) Stera Sheen (per case) Stera Sheen (per jar) Pocket Thermometer 1 Dial Z32 Overrun Scale
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SNAKE bull SLUSH
35
36
GEAR REDUCERS Order By Freezer Serial Number
Model 3 CB
153345 5-1 Ratio B side 153004 High Speed Cup ~ (2 ea required) 153005 High Speed Bearing (2 ea required) 153008 Slow Speed Cup (2 ea required) 153009 Slow Speed Bearing (2 ea required) 153052 Slow Speed Seal (2 ea required) 153054 High Speed Seal (2 ea required) 153313 Brass Gear 5-1 Ratio 153336 Slow Speed Shaft Only 5-1 Ratio 153316 Worm Gear On Shaft 5-1 Ratio 114873 Gasket Set
Model 4 CB
153342 10-1 Ratio A side 153343 10-1 Ratio B side
153014 High Speed Cup (2 ea required) 153015 High Speed Bearing (2 ea required) 153011 Slow Speed Cup (2 ea required) 153012 Slow Speed Bearing (2 ea required) 153051 Slow Speed Seal (2 ea required) 153053 High Speed Seal (2 ea required) 153349 Brass Gear 10-1 Ratio 153339 Slow Speed Shaft OnIy 10-1 Ratio 153347 Worm Gear on Shaft 10-1 Ratio 114874 Gasket Set
Winlwin Model
153341 Wintwin 10-1 Ratio A and B Side
153014 High Speed Cup (2 ea required) 153015 High Speed Bearing (2 ea required) 153011 Slow Speed Cup (2 ea required) 153012 Slow Speed Bearing (2 ea required) 153051 Slow Speed Seal (2 ea required) 153053 High Speed Seal (2 ea required) 153349 Brass Gear 153350 Slow Speed Shaft Only 153348 Worm Gear on Shaft 11 4874 Gasket Set
158055 Gear Reducer OU 51001
Drive Coupling (Order By Machine Serial Number)
Mfg by H C DUKE amp SON INC bull 2115 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
917 amp 927 Beater Shaft Assembly
957 Beater Shaft
Item Part No Description
1 196079 Bushing-Cylinder 2 114752 Beater-Assy Long (Shaft) 3 137334 Blade-Scraper Soft Serve 4- 160500 O-Ring (Shaft Seal) 5- 133098 Bushing (Washer-Shaft Seal) 6 160557 Seal-Beater Shaft
-Items 4-6 111875 Seal-Assy Shaft (Complete)
31
1 113438 2 196079 3 137334 4- 160500 5- 133098 6 160557
-Items 4-6 111875
Shaft-Assy Beater Bushing-Cylinder Blade-Scraper O-ring (Shaft Seal) Washer-Shaft Seal (Bushing) Seal-Beater Shaft (Cup)
Seal-Assy Shaft (Complete)
ao
DISPENSING HEAD
16
r
Q
--~
-----_
REF PART No DESCRIPTION Tl3o 6 119928- Door Assembly shy Complete (Items 7-14) 11637- 7 196688 Door shy Less Parts
a 134921 Spigot shy Less Extension 9 134922 Handle Extension shy Spigot
10 162624 Handle 11 159295 OmiddotRings shy Spigot (Lots of 5)12 159309 O-ring shy 4 - Door 13 196066 Air Relief Screw 14 160621 a-Ring shy Air Relief Screw (Lots of 5)15 136126 Rod - Spigot Switch shy 917 8 927 16 136798 HMdKnob
38
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illmols 61244
SUPERIOR QUAUlY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
Duke Soft Serve Freezer Models 917R and 927RN
5 -______
7
6
UPDATEDDispense Head Assembly
Item Part No
115130 1 116321 2 160583 3 115129 4 160562 5 136126 6 134921 SA 162624 68 134922 7 159295 8 160584 9 162625 9A 114341 10 196185 10A 137870 108 136713
116410
Includes items 1-4 6-8
Description
Head-Assy Dispense (Complete) Head-Assy wActualor O-ring (Head-4-inch) Bleeder-Assy (Air Relief Plug) O-ring (Bleeder-Assy) Rod-Spigot Switch Spigot-long Single Handle-Black Tapered Handle-Spigot (Stainless Steel) O-ring (Spigot) O-ring (Extension) Knob-Hand Stud-Assy Cylinder 1-15116 inch (not shown) Nouie-Slar Adapter (accessory) Adapter-Yogurt Nozzle (not shown) Extension-Spigot (accessory-cake not shown) Kit-Dispense Head Switch
( Use only original or authorized replacement parts with this freezer )
DISPENSING HEAD
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH uu
REF PART No 114765
1 196082 2 114313 3 137018 5 136618 6 162626 8 134499 9 162625
10 115129 11 136794 12 159309 13 159295 14 160562 15 136713 16 160584
DESCRIPTION Door Assy-Complete Door-Less Parts Spigot Assy-Side Spigot Only-Center Extension Only-Center Handle Stud-Handle Stop Hand Knob Air Re1ief-Assy Rod-Spigot Switch O-Ring-4-Door O-Ring-Spigot O-Ring-Air Relief Extension-Spigot a-Ring
39
40
PUMP MOTOR AND HOUSING ASSEMBLY SAFETY SWITCH ASSEMBLY
PRESSURE SWITCH ASSEMBLY ijreg~
I
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH IIIUaA
CAB DPR PUMP BREAKDOWN
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 196091 Pump Base 46 114009 Pump Cover 2 136088 Pump Support 47 113464 Base Bracket Assembly 3 150784 Strain Relief Bushing 48 135725 Stud 1-78 4 Power Cord 49 160131 516 Flatwasher 5 160075 10-24 x 38 Screw 50 160293 Speed Clip 6 135416 Cover Electric Box 51 135724 Button 7 160141 14 Lockwasher 52 160140 10 Lockwasher 8 160491 14-20 x 34 Socket Screw 53 135726 Stud 3 9 113497 Motor Cord 18-3 SJT 54 160109 10-24 Hex Nut 10 151127 Motor 40 RPM Soft Serve 55 135729 Switch Actuator 11 160023 14-20 x 1 Screw 56 135731 Stop - Max Pressure 12 153317 Half Moon Key 57 162315 Spring - Soft Serve 13 112925 Cam Drive Plate Assembly 58 160138 10 Flat Washer 14 160495 14-20 x 14 Set Screw 59 160304 10-24 Stop Nut 15 160369 Pin 60 150456 Pressure Switch 16 134614 Swing Clamp 61 135744 Insulator - Fiber 17 134521 Adjusting Clamp 62 160381 6-32 x 1 Socket Screw 18 160488 Thumb Screw 63 160393 6 Flatwasher 19 134604 Bearing Bushing 64 160146 6 Lockwasher 20 134602 Connecting Rod 65 160309 6-32 Hex Nut 21 134601 Piston 66 160006 6-32 x 14 Screw 22 159295 O-Ring 67 160001 8-32 x 38 Screw 23 134603 Wrist Pin 68 160470 8 Lockwasher 24 136089 Cylinder 69 150481 Circuit Breaker 25 199011 Washer Valve 70 135727 Switch Bracket 26 159282 O-Ring 71 136311 Spacer - Cover Switch 27 113839 Pump Valve Housing 72 160028 Truss Head Screw
Assembly (Metal) 14-20 x 34 SST 28 160582 O-Ring 73 160141 Lockwasher 14 29 199020 Sleeve Rubber 74 160104 Hex Nut 14-20 30 135793 Retainer Clip 75 136312 Button Guard 31 135791 Adapter Hose Outlet 76 160020 Hex Hd Cap Screw 32 160581 O-Ring 14-20 x 1 SST 33 135790 Piston 77 113869 Switch Bracket 34 162308 Spring Soft Serve 78 136110 Button Cover Switch 35 135792 Drain Port 79 162314 Spring 36 160611 O-Ring 80 150456 Switch Pump Safety 37 135896 Hose 24 81 135004 Switch Cover 38 160738 Hose Clamp 82 160296 Screw RH 39 136288 Keeper 6-32 x 1-14 40 160554 O-Ring 83 160146 Lockwasher 6 41 160368 Wing Nut Int Tooth 42 130054 Diaphragm Housing 84 160393 Flatwasher 6 43 199019 Diaphragm 85 160309 Hex Nut 6-32 44 196074 Air Tube-Curved 86 114572 Hose Clamp 45 163433 Air Meter - 20 87 160048 14-20 x 12 TRHM
(other sizes available) 88 160308 6-32 x 516 RDHM 89 114581 Circuit Breaker Bracket
Not Shown 90 163109 Stop Pivot 112791 DPR Pressure Gauge
41
Mfg by H C DUKE amp SON INC 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
42
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Unit does not operate 1 Fuse blown at main disconshy 1 Check fuse size check for low nect voltage if not within 10 of
nameplate rating install transformer or call power company
2 Beater motor out on overload 2 Press starter reset button and check for low voltage Check producllemperalure and overrun
3 Disconnected or broken wife 3 Check wiring and wire connecshyin electrical circuit lions repair or replace lead
wires as necessary
4 Faulty selector switch 4 Replace selector switch
5 Out on high pressure 5 Check for low waler supply or dirty air conden ser
6 Out on low pressure 6 Check limit control and freon charge
Compressor does not operate f Troubte in compressor con- I Refer to Trouble-Shootingshyor operates improperly densing circuit Compressor I Condensing
Circuit
2 Faulty capacitor assembly 2 Replace capaCitor assembly (Single phase only)
3 Faulty contactor 3 Replace contaclOr or pOints
Compressor operates but 1 Loose con neclion at motor 1 Tighten connection beater motor does not starter coil (electrical box)
2 Open starter coil 2 Replace coil
3 Faulty capacitor assembly 3 Replace capaCitor assembly (Single phase only)
Dispensed product too hard 1 Cylinder themostat erratic 1 Adjust thermo slat or replace or set too low
2 Faulty time delay relay 2 Replace time delay relay
3 Solenoid valve leaking 3 Replace solenoid valve
4 Low suction pressure 4 See chart on page 15 for adshyjustments
Leaking of mix from rear housshy 1 Damaged bealer shalt seal 1 Replace shaft seal or O-ring ing discharge tube to drip tray inside seal assy
Mig by H C DUKE amp SON INC bull 2116 Eighlh Avenue Easl Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Mix leaking at dispensing head 1 Faulty 4 O-Ring
2 Head not properly installed
1 Replace 4 O-Ring
2 Install head properly
Mix sours in cabinet 1 Cabinet thermostat setting too high
2 Cabinet thermostat detective
3 Cabinet solenoid valve deshyfective
4 Cabinet switch defective
5 Beater motor out on overshyload (cab side)
1 Adjust thermostat
2 Replace thermostat
3 Replace coil or solenoid
4 Replace cabinet switch
S Reset overload for beater motor See pg 42 unit does not operate
Cabinet too COld
Machine runs continually and Product continues to get colder
Compressor operates only when dispensing
Unit runs conMuously Product does nol reach 180 F temperature
6 Door sWitch defectIVe
1 Cabinet thermostat setting too low
2 Defective thermostat
3 Cabinet solenoid stuck open
4 Cabinet expansion valve set too low
1 Plunger switch out of adjustshyment
2 Su ction pressure too low
3 Defective plunger switch
4 Plunger switch rod engaged
5 Faulty time delay relay
6 Starter or relay contacts stuck
7 Faulty thermostat or bulb not deep enough in well
6 Replace door SWitch
1 Adjust thermostat
2 Replace thermostat
3 Replace solenoid
4 Adjust cabinet expansion valve (See pg 15)
1 Adjust plunger switch
2 Adjust expansion valve and check freon charge
3 Replace plunger switch
4 Close plunger completely
5 Replace time delay relay
I 6 Check contacts i
7 Check bulb location or replace thermostat
1 Cylinder themostat setting 1 Adjust thermostat or replace too high or thermostat deshyfective
1 Trouble in compressor I condensing system
2 ExpanSion valve setiing is too high
3 Low on refrigeranl
1 See Trouble-Shooling-CompressorI Condensing circuit
2 Adjust expansion valve
3 Check and repair leak and recharge
1
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE SLUSHbull
43
44
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Dispensed product too soft (Product temperature above 21 0 F)
1 Automatic expansion yalve incorrectly set or erratic in operation
-2 Leak in refrigeration system
resulting in little or no refrigeration
1 Adjust or replace expanSion valve
2 Pump down system or remove refrigerant charge repair leak evacuate and recharge
3 Excessive oil in system 3 Drain compressor to proper oil leyel pump down and flush system
4 Thermostat set too high taulty
or 4 Adiust thermostat or replace
Product dispenses slOWly out dispensing head
1 Reverse rotation 1 Change rotation to clockshywise from front of freezer
2 Dispensing speed adjustshyment boll too far down
2 Adjust bolt upward
3 Pum p problem 3 See pump Trouble-Shooting chart
4 Product too cold 4 See dispensed product too hard pg42
TROUBLE-SHOOTING CHART COMPRESSORICONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor will not start -hums intermittently (cycling on oyerload)
1 Improperly wired
2 Low line Yoltage
3 Open starting capacitor (single phase only)
4 High discharge pressure
1 Check wiring against diagram
2 Ask power company to increase YOltage to not less than 10 below nameplate rating or install transformer Check for inadequate wire size
3 Replace starting capacitor
4 CheCK water regulating valve setting Check water or air condenser and clean if necessary Make sure disshycharge shut-oft valve is open
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor starts but remains 1 Low line voltage 1 Ask power company to in start windings increase voltage to not less (Single phase only) than 10 below nameplate
rating or install transrormer
2 Improperly wired 2 Check wiring against drawing Check wire size
3 Running capacitor shorted 3 Check by disconnecting running capacitor
4 Starting capacitor weak 4 Check capacitor replace
5 High disCharge pressure 5 Check water regulating valve check water or air condenser and clean il necessary Check discharge shut-off valve
Starter burned out 1 Low line voltage 1 Ask power company to inshycrease voltage to not less than 10 below nameplate rating or install transformer
2 Excessive line voltage 2 Ask power company to reduce voltage to maximum of 10 over nameplate rating
Starting capacitors burn out 1 Voltage 100 low 1 Ask power company to (Single phase only) increase voltage to not less
than 10 below nameplate rating or install translonmer
2 Improper capacitor 2 Replace capacitor with properly rated capacitor as listed in manual
Running capacitors burn out 1 Excessive line voltage 1 Ask power company to reshy(Single phase only) duce line voltage to not more
than 10 above rating 01 motor
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
45
46
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Unit operates long or continuously
1 Shortage of gas
2 Dirty condenser
3 Moisture in system
4 Compressor failing
1 Repair leak and recharge
2 Clean condenser
3 Evacuate and recharge system
4 Check compressor lor proper pressures If inadequate replace compressor
Head pressure too high 1 Refrigerant overcharge
2 Air in system
3 Dirty condenser (air cooled)
4 Unit location too warm (air cooled)
5 Restricted water cooled condenser
6 Water turned off or defective
1 Purge system
2 Purge system evacuate and recharge
3 Clean condenser
4 Relocate unIt away from restriction Place nothing against back or on top of unit
5 Clean or replace condenser
6 Turn on water Or replace water regulating valve regulating valve
Head pressure too low 1 Shortage 01 refrigerant 1 Repair leak and recharge
2 Water regulating valve open 2 Adjust regulating valve too wide
Water 1I0wing through water 1 Water regulating valve 1 Replace water regulating valve waste line when unit is not in operation
defective
Noisy compressor 1 Tubing raUle 1 Bend tubes away from contact
NOTE Refer to warranty card prior to compressor replacement
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING DPR PUMP
TROUBLE PROBABLE CAUSE REMEDY
Pump will not run 1 Pump cover removed 1 Install pump cover
2 Pressure switch actuating 2 Free bulton-check spring and
bulton stuck open (in) pressure switch alignment
3 Pressure switch burned out 3 Replace pressure switch
4 Starting switch in motor bad 4 Install new starting switch
5 Motor burned out 5 Replace motor
6 Circuit breaker kicked out 6 Allow to re- set Replace it or faulty circuit breaker will not
automatically re-set
Motor runs-cam drive plate 1 Loose cam drive plate 1 Tighten set screw in cam will not turn drive plate Check woodruff key
2 Gear stripped 2 Replace gear
Pump will not shut off Mix 1 Pressure swilch actuating 1 Free button-check pressure shoots out pressure relief bulton stuck closed (out) switch alignment
2 Pressure switch stuck in 2 Replace pressure switch closed position
3 Pressure switch assy out 3 Using pressure gauge adjust of adjustment pressure
4 Dirty or plugged diaphragm 4 Disassemble and clean housing (Ref 42) housing
5 Defective O-Ring on 5 Replace O-Ring pressure relief piston
Pump will not prime 1 Insufficient supply of mix 1 Replenish mix supply
2 Piston O-ring defective-no 2 Replace piston O-Ring and suction lubricate
3 Washer valve not sealing 3 Replace washer valve DO NOT LUBRICATE
Pump primes No pressure in 1 Sleeve (Rei 29) not sealing 1 Replace sleeve DO NOT cylinder properly LUBRICATE
2 Loose hose connection on 2 Install or tighten hose clamp pump valve housing (Ref 27)
Mix shoots out Of air intake line 1 Washer valve (Ref 25) 1 Replace washer valve-DO not sealing properly NOT LUBRICATE
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOfT SERVE bull SHAKE bull SLUSH
47
48
TROUBLE-SHOOTING DPR PUMP
Too much air overrun too high-popping problems
Product dispenses slowly out of disPenSing head
1 Air meter too large (Ref 45)
2 Air leak befween mix conshytainer and mix inlet
3 Air line hose crackedshysucking air (Ref 44)
4 Pump pressure too lowshycylinder not full
1 Pump pressure too low
2 PrOduct too cold
3 Low overrun
Diaphragm housing leaking mix 1 Diaphragm housing loose
2 Diaphragm defective
Piston drive assy noisy 1 Bushing bearing worn
2 Defective gear in gear motor
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SIfAKE bull SLUSH
REMEDY
1 Replace washer valve-DO NOT LUBRICATE
2 Install clamp on hose
1 Replace O-Ring and LUBRIshyCATE
1 Clean or replace air meter
2 Replace tube
1 Install smaller air meier
2 Repair as needed
3 Replace air line hose
4 Using pressure gauge adjust pressure switch
1 Using pressure gauge adjust pump pressure
2 Check product temperatureshyshould be about 18 F
3 Check meter-if plugged-clean
1 Tighten wing nuls (Ref 41)
2 Replace diaphragm (Ref 43)
1 Replace bushing bearing (Ref 19)
2 Replace gear
TROUBLE
Mix inlet hose loses prime
Mix on top of piston
PROBABLE CAUSE
1 Washer valve (Ref 25) not sealing properly
2 Mix inlet hose loose
1 Piston O-Ring leaking (Ref 22)
No Air (Overrun) 11 Ai r meter plugged (Ref I 45)
2 Curved air tube pinched
--
DPR PUMP aI
PART NO 199019(i) PART NO 199020 reg DIAPHRAGM RUBBER SLEEVE
PART NO159295 PART NO 159282reg O-RING O-RING0
PART NO 160581reg O-RING
o PART NO PART NO
PART NO199011() 160611(8) 160582 WASHER VALVE O-RING O-RING
PISTON
cJ
DIAPHRAGM HOUSING
CYLINDER
VALVE HOUSIN6 ASSEMBLY
PUUPOUTLET
DRAIN PORT
I PHNO309-755-4553 O-RING CHART HCDUKEampSONINC I
1 I84Z08 SOFT SERVE DISPENSING HEADS I
o PART NO 1605620
PAR~159--1b
PART NO PART NO 1605841 59295()
I PHNO 309-755-4553 O-R ING CHART HCDUKEampSONINC I
- Cover
- Table of Contents
- Safety
- Uncrating amp Inspection13
- Explanation of Electrical Controls
- Operation of Machine
- General Information
- Maintenance amp Adjustment
- Parts Breakdowns
- Trouble-Shooting Charts
- O-ring Charts
-
TABLE OF CONTENTS Page
Uncrating and Inspection 3
Electrical Requirements 4
Explanation of Electrical Controls ~ 7
Test of Installation 8
Operation of Machine 9
Pump Operation and Maintenance 1 0
Pump Reassembly and Lubrication 11
Sanitizing Instructions 12
Start-Up Instructions 12
Cleaning Procedure 13
General Information DPR Pump 14
Refrigeration Settings 15
Maintenance and Adjustment 18
Lubrication 18
Break-Away Drawing - Freezer Parts 24
Gear Reducer Parts Breakdown 36
Break-Away Drawing - DPR Pump 40
Trouble-Shooting Chart (Freezer) 42
Trouble-Shooting Chart (Pump) 47
0-Ring Chart Dispensing Heads 49
O-Ring Chart DPR Pump 50
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
1
2
NOTE Be sure to completely read and understand this manual before operating this freezer
SAFETY
THIS SAFETY ALERT SYMBOL IDENTIFIES IMPORTANT PeRSONAL SAFeTY MESSAGES IN THIS MANUAL WHEN YOU SEE THIS SYMBOL BE ALERT TO THE POSSIBILITY OF PERSONAL INJURY DO NOT ATTEMPT TO CONTINUE UNTIL THE SAFETY PRECAUTIONS ARE READ AND THOROUGHLY UNDERSTOOD
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244 _ SUPERIOR QUALITY FREIZERS bull SOFT SERVE bull SHAKE bull SLUSH
UNCRATING AND INSPECTION When the unit is received and while the carrier is still present inspect the shipping crate for any damage which may have occurred in transit If the crate is broken or torn or punctured note the damage on the carriers freight bill and notify the carriers local agent immediately
A NOTE Be sure to properly support the machile when removing bolts and installing legs or casters
Remove the crate from the pallet and move the machine as close as possible to the permanent location Remove the shipping bolts on the bottom of the machine (figure 1) and install either the legs or casters (figure 2)
SERVICE CONNECTIONS AND ADJUSTMENTS
If your machine is located between two units of stationary equipment it is recommended that the machine be installed on casters and have flexible water and electrical connections A machine should be accessible from front rear and right side The compressor and water valve are located at the rear by removing the back panel The thermostats and expansion valve are located on the right side of the machine and can be serviced by removing the side panel Electrical controls are located al the front behind the merchanshydising sign On a double head machine the thermostats and expansion valve for the left cylinder are located behind the left side panel All materials and connections must conform to local codes andor the National Electrical Code
INSTALLATION
Your machine must be installed and serviced by an authorized service technician
Place the freezer in the proper location and level the machine This is done by adjusting the legs or casters so that the unit is level side to side and the front is approximately 14 lower than the rear to allow proper drainage from the freezing cylinder
c_ REMOVE HEX HEAD cREWS AND FLAT WASHERS
LEG SiJPPORT
PALLET
LEG~ SUPPORT
SET cREW
LEG
LEG COVER
Figure 1 MaChine bolted to Shipping Base Figure 2 Installing the Mounting Legs
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull sOFT SERVE bull SHAKE bull SLUSH
3
4
ELECTRICAL REQUIREMENTS
The phase and voltage of your machine are shown on the nameplate on the rear panel Voltage should be within plusmn10 of voltage indicated on nameplate Request local power company to correct voltage
WARNING
FAILURE TO CONNECT OR SUPPLY -PROPER VOLTAGE TO THIS FREEZER WILL VOID YOUR WARRANTY
SPECIAL NOTE On all Delta three phase circuits wild or high leg must be connected to L2 (red wire)
NOTE All machines single and 3 phase require a neutral line to complete the 115 volt circuit for the mix pump motor
ELECTRICAL CONNECTIONS
WARNING
IN ORDER TO PREVENT ACCIDENTAL ELECTRICAL SHOCK CONmiddot A NECT A POSITIVE EARTH GROUND TO THE SCREW PROVIDED IN THE CONNECTION BOX
You will find the connection box at the rear of the machine
Double CABS must be wired with two power lines Each side of these machines operates individually and separate wiring will allow service on either side without shutting down both sides
FUSES
Use dual element fuses rated at 25 over the full load amperage (FLAJ rating of the machine ReIer to the nameplate on the rear panel 01 the machine As mentioned before all double head machines should be wired and fused as individual units Use a flexible connection when permissible All materials and connections must conform to local codes and lor the National Electrical Code
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline illinOIS 61244
SUPIRIOft QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH iIIU1A
ELECTRICAL SPECIFICATIONS
REFER TO NAMEPlATE ON REAR OF FREEZER FOR ELECTRICAL SPECIFICATIONS
AIR COOLED MODELS
When installing self contained air cooled CAB models remember that the flow of air is from right to left through the upper portion of ttle machine-This means that you cannot have any obstruction on either side of the machine A minimum of six (6) inches clearance on either side is required Anything in this area will reduce the efficiency of these models
When installing all other air cooled cab models remember that the flow of air can either be from the sides through the top panel or from the rear through the top panel In each case a minimum of six (6) clearance must be maintained on either the side panels or the rear panel and the top panel must be free from obstructions Anything (including cone dispensers) in this area will reduce the efficiency of these models
WATER COOLED MODELS
Water cooled Single CAB models will require a 38 MPT water inlet and water waste connection
Water cooled Double CAB models will require a 12 MPT water inlet and water waste connection Both units are tied together so that one water inlet and one water waste is all that is required
All water connections are found on the bottom under the compressor mounting area and are clearly tagged-HWater Inlet and Water Waste It is suggested that a manual shut off valve be installed in the water inlet line at the time of installation
WARNING
DISCONNECT MAIN POWER SUPPLY AND WATER SUPPLY BEFORE BLOWING WATER OUT OF THE CONDENSER
CAUTION ALL WATER COOLED MODELS MUST HAVE CONDENSERS BLOWN OUT IF EXPOSED TO BELOW FREEZING TEMPERATURES AIR PRESSURE OF AT LEAST 20 LBS SHOULD BE PUT THROUGH THE WATER LINES STARTING INSIDE THE WATER VALVE IT IS RECOMMENDED THAT A QUALIFIED REFRIGERATION TECHNICIAN DO THIS
NOTE The water waste connection should be checked periodically to ensure water is not running when the freezer is not in operation
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
5
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927CAB 917CAB
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(MAIN liNEIlOX I()lTAufj
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1
ALL CONNECTIONS ARE MADE THROU(H BOTTOU Of FRpoundpoundZfR
MODEL 9S7-CAB
ELECTRICAL SEfIIIlCE
(~~l ~r 1I L _J I I I
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TOP Of UNl r MUST BE KEPT CLEAR TO ALLOW AIR EXHAUST
26
bull
-1f2 MPT WAiER
- Y2 MPT WATfR OUT (WATER C(X)lED UNITS otaX)
ALL CONNECTIONS ARE MADE THROuWi eOTTOtt OF FREEZER
EXPLANATION OF ELECTRICAL CONTROLS SOFT SERVE CAB ELECTRICAL CONTROLS
The fotrowing is an explanation of each switch across the front of the machine
PUSH TO RESETmiddot Your machine is equipped with an electrical overload system so the beater motor is protected against burn out if your machine is stopped by the overload it will be necessary to push the reset button before it will start again If this happens frequently your machine should be checked for proper voltage or any unusual cause of strain on the beater motor
SELECTOR SWITCHmiddot This is a three position switch that controls the following operations
CLEANOUT (to the left) operates the beater motor only This position should be used in all cleaning and sanitizing operations OFF (Center Position) turns off the cylinder refrigeration and the beater motor AUTOMATIC (to the right) activates the cylinder refrigeration the beater motor and refrigeration to cabinet This is the normal operating position for both day and night operation
MIX PUMP SWITCH bull Controls the DPR pump located in the refrigerated mix storage cabinet Turn this switch to the left ON position for operation and to the right OFF position for disassembling cleaning and night operation
THERMOSTAT SWITCHmiddot Controls the day and night refrigeration cycles The DAY position to the left activates the low temperature refrigeration system and allows the beater motor to operate The NIGHT poSition to the right switches the refrigeration system to a medium temperature holding cycle
CABINET SWITCH bull Controls the cabinet refrigeration The cabinet refrigeration is on when the switch is turned to the left and off when turned to the right Cabinet is automatically on when the selector switch is in the AUTO position
TIMERmiddot is a quick freeze switch Turning the timer will bypass the thermostat forcing the compressor and beater motor to operate The timer can be used for quick start ups in the morning or for fast recovery when large portions are dispensed
CAUTION EXCESSIVE USE OF THE TIMER CAN CAUSE YOUR MACHINE TO FREEZE UP USE ONLY WHEN NECESSARY
RED PILOT LIGHT
When this light is on it is an indication that the compressor is running This can only be on when the Selector Switch is in the AUTO position This light should never be on when anything but approved product is in the freezer (never on when water sanitizer or milkstone remover is in the freezer)
AMBER PILOT LIGHT
When this light is on the agitator drive motor is running This may be on when the Selector Switch is in the CLEAN or AUTO position Whenever the red pilot light is on the amber should also be on
DIAL THERMOMETER
This is an indication of the approximate temperature of the evaporator It should be viewed as an indication of how well the freezer is operating Once familiar with the normal operating measurement (usually between 5 and 15 deg) it is easier to detect unusual or abnormal functions of the freezer Observation of the thermostat often during each day 01 operation is a goOd habit for all operators This is not a measurement of prOduct temperature
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline lInol5 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SWSH PrioMd Ull II
6
CAUTION SWITCHES 1 2 and 4 DO NOT SHUT OFF THE SUPPLY OF POWER TO THE MACHINE THIS ONLY PREVENTS THE CONTROLS FROM OPERATING IF ANY
A ELECTRICAL REPAIRS ARE REQUIRED DISCONNECT THE MAIN POWER SUPPLY TO THE MACHINE AT THE CONTROL PANEL OR FUSE PANEL
PLUNGER SWITCHmiddot This switch only works in the day mode when the selector switch is in the AUTO position When the dispensing handle is pulled down the plunger switch rod raises and engages the plunger switch to turn on the beater motor and compressor The plunger switch activates the time delay and overrides the thermostat When the dispensing plunger is returned to the closed position the machine will continue to run for 12 seconds on the time delay and will then turn off unless the termostat requires additional refrigeration
DISPENSING SPEED ADJUSTMENT
WARNING
A MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFF POSImiddot TION AND THAT THE MAIN POWER SUPPLY IS DISCONNECTED
All soft serve machines have a dispensing speed adjustment To make this adjustment it is necessary to remove the merchandiser and cover from in front of the electrical box Upon removal of this panel you will see the plunger switch mounting bracket (see page 26) At the top of this bracket is the adjusting screw After loosening the lock nut adjust the screw as required The further down you turn this screw the slower the product will come out If you do this with patience you can adjust the machine to the point where the unit cannot be outdrawn (turn to a product that is too soft)
CAUTION ADJUSTING THE SCREW TOO FAR DOWN CAN CAUSE THE MACHINE TO FREEZE UP
TEST OF INSTALLATION
Remove the dispensing head and beater shaft (See Washing Instructions) so that the unit can be tested Turn on the pump switch (pump cover must be in place) to insure that the pump is running turn switch off Turn the following switches on in this order (1) Thermostat switch DAY (2) Cabinet Switch ON and (3) selector switch AUTOMATIC Let the unit run and at this pOint check beater rotation (clockwise from front) frost line in cylinder (front to back) and cabinet refrigeration Allow the unit to run until it shuts of automatically Should you have a short cycle (machine turns on then off every 10 or 15 seconds) check the water inlet manual valve Insufficient supply of water to the machine will give you this short cycle After the machine turns off automatically turn the selector and cabinet refrigeration switch OFF Cabinet refrigeration system will not operate when cabinet door is open
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Molme illinOIS 61244
SUPERIOR QUALIlY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
OPERATION OF MACHINE DISASSEMBLY AND WASHING
Your Soft Serve machine has been completely tested at the factory It is important that the machine be dismantled washed and lubricated before operation
CAUTION ALL CONTROL SWITCHES MUST BE IN THE OFF POSITION AND THE MAIN POWER SUPPLY DISCONNECTED FOR DISASSEMBLY AND REASSEMBLY BE SURE THE MACHINE IS DEPRESSURIZED BEFORE PROCEEDING (See page 13)
Refer to pages 37 38 and 39
Remove the plunger switch rod by lifting this rod up and swinging the bottom portion out and then pulling down Place the plunger switch rod on the drip tray Remove the two hand knobs and pull the head assembly straight out You will find that this is tight as there is an a-ring on this head Remove lever pin pull out handle and plunger
Remove cylinder bushing and pull out the beater shaft holding the knives as you do so Remove rear seal from shaft Take the head and beater shaft assemblies to the washing area Wash all parts thoroughly in a warm detergent solution and then rinse Wash the drain tube and cylinder using the brushes supplied
NOTE Do not dry any parts - reassemble them wet or allow to air dry
NOTE All O-rings must be removed in order to properly wash parts
Remove the DPR Pump from the cabinet in the bottom of the freezer Details on this are given in the pump section of this manual on pages 9-10 following
LUBRICATION AND REASSEMBLY
NOTE We recommend using Petrol Gel or equivalent
Lubricate the a-ring inside the rear seal Place it on the shaft so cup side will be against back of freezing cylinder DO NOT LUBRIGA TE THE GRAY RUBBER SEAL This seal is held under tension against the back of the cylinder when the beater and door are in place The cup seal remains stationary while the shaft turns freely in the plastic bushing Place both blades on the beater shaft and slide the beater into the cylinder Make sure the blades are installed properly The portion of the blade containing 2 knobs should face away from the cylinder walls When inserting the beater place the rear blade on the bottom of the cylinder This will center the beater and allow alignment with the drive coupling Push the beater shaft in and rotate until beater is engaged in the drive coupling The front of the beater shaft when engaged in coupling should be about 12 inside the cylinder Lubricate the inside surface of the cylinder bushing and install in cylinder
CAUTION ALWAYS MAKE SURE THAT THE BEATER BUSHING IS ON THE FRONT OF THE BEATER SHAFT OPERATION WITH A MISSING OR BADLY WORN BEATER BUSHING WILL DAMAGE THE BEATER AND CYLINDER
Lubricate the a-rings on the dispensing plunger and insert the plunger half way into the head Insert the plunger handle and lock in place with the lever pin Lubricate the 4 a-ring and slide the head assembly over the two cylinder studs Replace the two hand knobs and tighten the head on the cylinder DO NOT overtighten the knobs If leakage occurs check the 4 a-ring Replace the plunger switch rod
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALllY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
9
10
DPR PUMP OPERATION AND MAINTENANCE A CAUTION ALL CONTROL SWITCHES MUST BE IN THE OFF POSITION AND THE MAIN POWER SUPPLY DISCONNECTED FOR DISASSEMBLY AND REASSEMBLY
DISASSEMBLY
Step 1 - Reference DPR pump breakdown pages 40 and 41 for assistance in identificashytion of pump parts and their associated reference numbers If the pump has been in operation be sure that it is depressurized before proceeding to step 2
Step 2 - Remove attached mix hoses and pump cover (Ref 46)
Step 3 - loosen the thumb screw (Ref 18) and swing away the clamp (Ref 16) Carefully remove the entire pump assembly from the pump support (Ref 2)
Step 4 - Remove wing nuts diaphragm housing and diaphragm (Ref 41 42 and 43)
Step 5 - Further disassemble the pump by removing the piston assembly including the piston connecting rod and wrist pin (Ref 20 21 and 23) Separate the wrist pin and connecting rod from the piston Remove the curved air tube air meter outlet hose adapter and cylinder (Ref 24 31 44 and 45) from the valve housing assembly (Ref 27)
Step 6 - Grasp the outlet hose adapter asembly (Ref 31) and remove the keeper (Ref 39) while pressing inward on the drain port (Ref 35) Carefully lift and remove retainer clip (Ref 30) Caution must be exercised when removing the retainer clip as the relief mechanism parts (Ref 33 34 and 35) are spring loaded Remove the piston spring and drain port
Step 7 - Remove all a-rings rubber sleeve (Ref 29) and washer valve (Ref 25) All parts disassembled in steps 2 through 7 should be washed thoroughly in a solution of mild detergent and water not exceeding 120deg F Rinse all parts
NOTE All O-rings must be removed in order to properly wash parts
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Mohne illinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
LUBRICATION AND REASSEMBLY
Reassemble by reversing the steps on page 10 and lubricate as follows
When replacing the flat rubber washer (Ref 25) DO NOT LUBRICATE Important -This rubber washer acts as the air and mix check valve and must lie flat against the top of the pump valve housing Install it over the mushroom cap and move it around to make sure that it is sealed Ins~n the sleeve (Ref 29) Like the washer valve this should not be lubricated and fits on the pump valve housing with the tapper to the bottom
All the O-rings on the pump should be lubricated lightly The O-ring on the piston (Ref 21) should be lubricated liberally as this is the major wearing O-ring and must provide a good seal
Install the O-ring and spring on the piston (Ref 33) Lightly lubricate the O-ring (only enough to make it shiny) Install the piston with the O-ring end in first Lubricate the O-ring on the drain port and install it in the adapter Push in on the drain port and slide the clamp over the top to lock it in place Place the keeper (Ref 39) over the exposed end of the drain port and install the hose and clamp on the drain port Install the pressure switch diaphragm in the diaphragm housing
The pressure switch diaphragm (Ref 43) requires no lubrication
Install the diaphragm housing and diaphragm on the two studs and tighten wing nuts hand tight Install the pump assembly on the bracket-drive assembly in the refrigerated cabinet The shoulder of the white bushing (Ref 19) faces the drive cam (Ref 13) when slid into place properly Be sure to insert the mix output body (Ref 31) over the diaphragm housing (Ref 42) Return swing and adjusting clamp to closed position and tighten thumb screw Replace mix hoses and tighten all hose clamps
NOTE The pump will not operate without the cover (Ref 46) in place
WARNING
MAKE SURE ALL HOSE CONNECTIONS AND THE SWING A CLAMP ARE TIGHT BEFORE PRESSURIZING MACHINE THIS SYSTEM PRODUCES 30-32 PSI DURING NORMAL OPERATION
11
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH PrIntId USA
12
SANITIZING INSTRUCTIONS
The washing and sanitizing instructions explained in this manual are required to maintain a clean sanitary machine Your Soft Serve machine should be disassembled cleaned and sanitized to insure the best possible product and machine operation
Prepare a solution of sanitizing water (for each barrel) in a 2-3 gallon container (Solution should be 200 PPM chlorine using Diversol or equivalent) Place the container in the refrigerated cabinet and insert the mix inlet hoSe or stainless steel mix tube in the sanitizer Turn the pump switch ON (located at front of machine) and allow the pump to build up pressure and shut off automatically Turn the selector switch to the CLEAN OUT position and allow the beater to run for 5 minutes This insures the sanitizing solution touching all of the internal parts Placing a container under the dispensing head release the solution from the cylinder by depressing the dispensing handle Do this slowly as the cylinder is under 30 pounds pressure HINT Remove serrated nozzle (Ref 2) for this operation Sanitize nozzle and install when mix is ready to be dispensed Leave the dispensing handle down until the pump has forced all or most all of the solution through the machine When completed turn the selector switch and pump switch OFF You are now ready to start your freezer
You are working with a pressurized machine Always check for possible leaks when sanitizing your machine A leak around the head is obvious and usually calls for the replacement of the dispensing head O-rings A leak in the shaft seal will flow out of the drain tube just below the dispensing head This usually requires the replacement of the shaft seal or shaft seal O-ring Any leakage in the pump would require that the O-ring be replaced at the point of leakage
NOTE Sanitizing is always done prior to starting the machine Never sanitize the day belore and let the machine sit overnight
START UP INSTRUCTIONS
After sanitizing immediately fitl the container with mix Place the mix inlet hose or stainless steel mix tube in the container of mix (If you are using a plastic bag container supshyplied by the dairy it is recommended that you notch the plastic hose or use a perforated mix can tube so that the bag cannot be drawn into the mix inlet restricting the flow of mix If not careful a hole can be made in the bag) Sanitizer will remain in the pump mix hose and cylinder Turn the pump switch on starting the pump and depress the dispensing handle opening the dispensing plunger Leave the dispensing plunger open until you receive
pure mix at the nozzle The mix will push the remaining sanitizer out of the machine if the plunger is left open Close the plunger after removing all remaining sanitizer (See page 20)
After the cylinder is pressurized and the pump has shut off place the selector switch in the AUTOMATIC position At this pOint make sure the cabinet switch is at the ON position and the thermostat switch is at the DAY position Allow the machine to cycle and freeze down Normally several refrigeration cycles will be needed before a frozen product can be dispensed
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
It is impossible to start the freezer and not have excess air in the cylinder Since you have air in the cylinder and the pump is also adding air to the mix on first start up you will have air pockets in the cylinder These pockets can be eliminated if after two or three cycles you will turn the selector switch to the OFF position Pump switch must be at ON position With the selector switch off slowly open the dispensing plunger and bleed off the excess air until liquid mix comes out the dispensing head Close dispensing handle allow the cylinder to fill and turn selector switch to AUTOMATIC At least 30 minutes cycling time should be allowed to insure a ready produ~l
CLEANING PROCEDURE - DRAINING MACHINE
Place selector switch on the front of the machine to CLEAN OUT and let the beater run for about five minutes This will allow the product in the cylinder to soften up Place a clean sanitized container under the dispensing nozzle and very slowly draw off the semishyfrozen cream until liquid mix appears at the nozzle Remove the stainless steel mix tube or mix hose from the mix container Leave the dispensing plunger open until all the mix has run out of the cylinder and place the container in the cooler for storage Place the mix inlet hose in a container of cold water allow the cylinder to pressurize and flush the machine with the selector switch on CLEAN OUT Follow with a container of warm water until machine is rinsed clean Place the selector switch and pump to OFF Refer to disassembly instructions (Ref page 9)
WARNING
YOUR SOFT SERVE MACHINE OPERATES ON 30-32 POUNDS PRESmiddot A SURE NEVER DISMANTLE ANY PART OF THE MACHINE UNLESS THE MACHINE HAS BEEN DEPRESSURIZED THE SELECTOR
SWITCH IS IN THE OFF POSITION AND THE MAIN POWER SUPPLY HAS BEEN DISCONNECTED DEPRESSURIZE THE CYLINDER BY OPENING THE SPIGOT WITH THE PUMP SWITCH IN THE OFF POSITION
CLEANING MIX HOSE
The CAB models use the DPR mix pump You must disconnect the mix hoses and clean them thoroughly USing a long handle brush and a suitable cleanersanitizer you must brush the interior of the mix hose to insure there is no build up of product on the walls of the hose Water temperature for this cleaning process should be 1800 F to meet some health codes After reassembly pump sanitizer through the hoses
Mfg by H C DUKE amp SON INC 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
13
14
GENERAL INFORMATION OVERRUN ADJUSTMENT
The overrun on your CAB machine equipped with a DPR pump is regulated by the air meter (Item 45-pump parts breakdown) You are supplied with three air metering plugs each containing a different size orifice The smaller the hole the lower the overrun The larger the hole the higher the overrun The orifice or hole in this air meter must be open at all times It is the only source of air into the freezing cylinder Check this daily
The mix will be a determining factor as to the amount of overrun you will be able to achieve Some mixes will accept more air than others thus regulating the size of air meter you can use Test to see which air meter will give you the best overrun and the best tasting shake Run each air meter for one day until you make the determination You may have a slightly higher overrun when you first start up the machine When the machine has run long enough to dispense at least one full cylinder of product you will have the overrun that the machine wil hold the remainder of the day
ADJUSTING PUMP PRESSURE
Only to be performed by a qualified service technician
A WARNING
DISCONNECT MAIN POWER SUPPLY BEFORE REMOVING PANELS
NOTE The pump will not operate without the cover in place
The DPR Pump is controlled by pressure in the mix line acting on the diaphragm (Ref 43) As the pump fills the freezer cylinder with mix pressure builds causing the diaphragm to expand As the diaphragm expands it contacts the button (Ref 51) which in turn depresses the pump pressure switch (Ref 60) The pressure switch button moves inward until the switch is opened turning off the pump motor When product is drawn from the freezer the diaphragm closes the pump pressure switch allowing the pump motor to restart Pump pressure will check the same with air mix or water We suggest the pressure be checked with air pressure only
Step 1 - Remove the rear panel from machine and the pump electrical box cover (Ref 6)
Step 2 - Locate the pressure adjusting nut (Ref 59) Turn the adjusting nut clockwise to increase pressure or counterclockwise to decrease pressure Usually one half turn of the adjusting nut will raise or lower the pressure of the model DPR pump two (2) PSIG
Step 3 - Install a quality pressure gauge in the mix output line Turn main power supply and pump switch to ON pOSition Caution Electrical power present through entire machine Allow the pump to pressurize until it shuts off automatically Observe the gauge pressure reading and disconnect main power supply Repeat the adjustment steps 1 through 3 until the proper pressure is obtained (30 to 32 PSIG) Reinstall the electrical box cover and rear panel
NOTE Pressure tine must be at least 6 fI long in order to obtain an accurate reading
A Pressure Gauge PIN 112791 may be purchased from your local distributor
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
PRESSURE RELIEF ASSEMBLY
The model DPR Pump incorporates a self contained safety pressure relief system The parts included in this assembly are (Ref 30 through 39) Any discharge of mix through the hose (Ref 37) is an indication of excessive pump pressure For corrective action refer to the trouble shooting section of this manual
REFRIGERATION SETTINGS
A WARNING
DISCONNECT MAIN POWER SUPPLY BEFORE REMOVING PANELS
The CAB Soft Serve machine contains two types of temperature control devices the expansion valve and the thermostat (explained in Thermostat Section) The expansion valve meters the flow of refrigerant to the cylinder and must be set correctly to give you maximum production
To locate the expansion valve remove the side panel On the single head CAB machines remove the right side panel The double head machines will have an expansion valve behind both right and left side panels
The expansion valve should only be adjusted by a refrigeration technician with refrigeration test gauges connected to the compressor Adjustments to the valve are shown in the following chart
REFRIGERATION SETTINGS MODEL TYPE OF COOUNG WATER AIR 917CAB 927CAB 957iAa I
Cyl Suction Pressure Rmiddot502 15middot17 (PSIG) 15-17 (PSIG)
9711CAS Cyl Suction Pressure R-502 15middot17 (PSIG) 15middot17 (PSIG)
ALL SOFT SERVE
CABS
Cab Suction Pressure Rmiddot502 Head Pressure Thermostat Differential
8middot10 (PSIG) 230-240 (PSIG)
17degmiddot22deg 7deg~8c
8-10 (PSIG) 230middot315 (PSIG)
17deg_22deg 7c -8deg
NOTE To correctly set the cylinder expansion valve the cabinet thermostat switch An must be in the OFF position (Full counterclockwise) with the compressor running
NOTE To correctly set the cabinet expansion valve the selector switch must be in the OFF position and the cabinet switch in the ON position (With the compressor running)
A refrigeration test gauge must be used when adjusting the suction pressure To reduce the suction pressure turn the adjustment screw on the expansion valve counterclockwise Do not turn more than 14 turn at a time Let the unit operate a sufficient length of time - at least two minutes - to properly read on the gauge the adjustment made
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline illinOIS 61244
SUPERIOR QUAUTY FREEZERS bull SOFt SERVE bull SHAKE bull SLUSH
15
16
THERMOSTATS
A WARNING
DISCONNECT MAIN POWER SUPPLY BEFORE REMOVING PANELS
Thermostat Au is the cabinet refrigeration thermostat The cabinet thermostat operates off of both the day and night switch operation to maintain 44 0 F or lower in the mix storage cabinet This thermostat can be adjusted by rotating the adjustment knob To set this thermostat colder turn the adjustment knob clockwise
CYLINDER THERMOSTAT
The cylinder thermostat is located behind the right side panel (on single head CABs) faCing the front of the machine On the double head CABs like the expansion valve a cylinder thermostat is located behind both the right and left side panels This control has two settings The first is the differential which should be set on 7-8deg F The other side of the control marked HIGH EVENT should be set between 17-220 F
The purpose of the cylinder thermostat is to maintain an 18deg F product during idle periods If the thermostat is set too cold and product is not drawn out of the machine a freeze up condition will result DO NOT run the product below 17deg F
NOTE The settings on the thermostat are ONLY to be used as a guide
For a correct adjustment a thermometer must be used to check the actual product temperature Each thermostat should be set in the field for the product being used Most of the time a temperature setting of between 18deg and 19deg F will maintain a satisfactory product Once the thermostat is set for the mix used it should require no further adjustment
MIg by H C DUKE amp SON INC 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH P~IIIIUSA
THERMOSTAT_________ Turn knob clockwise to make product colder
Differential adjustment
copy
COLDER ~ reg
copy5
2 6Igt
1 7 OFF
copy
THIS ASSEMBLY USED ON LEFT SIDE OF UNIT
RIGHT SIDE USES THIS ASSEMBLY WIO THERMOSTAT A (CAB THERMOSTAT)
MIg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
17
18
MAINTENANCE AND ADJUSTMENT
ONLY TO BE PERFORMED BY A QUALIFIED SERVICE TECHNICIAN
WARNING
MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFF POSITION AND THAT THE MAIN POWER SUPPLY IS DISCONNECTED BEFORE REMOVING PANELS
LUBRICATION INSTRUCTIONS
FAN MOTOR (Air Condenser) Lubricate annually with SAE 10 motor oil in the oil cups
CAUTION DO NOT OVER-LUBRICATE OVER-LUBRICATION CAN DAMAGE MOTOR
GEAR REDUCER The gear reducers are heavy duty worm-geared units manufactured to HC Duke specifications II traces 01 oil are found in the immediate area around the reducer repair the leak (usually an oil seal) and check the oil level When adding oil use only synthetic gear lube in the reducer
NOTE This is a special oil and will not mix with a petroleum base oil Contact your distributor when this oil is needed This oil should be changed at least once a year
OIL LEVEL PLUG
PROPER OIL LEVEL
OIL DRAIN USE SPECIAl PLUG OIL ONLY
USE SPECIAL LOILON=LY-- I
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH ~1U8A
MAINTENANCE AND ADJUSTMENT ONLY TO BE PERFORMED BY A QUALIFIED SERVICE TECHNICIAN
WARNING
MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFFA POSITION AND THAT THE MAIN POWER SUPPLY IS DISCONNECTED BEFORE REMOVING PANELS shy
BEATER MOTOR Beater motors are either single or three phase Capacitor starting is used on the single phase units The beater motor should be inspected and cleaned
WATER COOLED CONDENSER Depending on the condition of your water the condenser on your CAB machine may require cleaning from time to time Usually a restricted flow of water resulting in a high head pressure indicates a dirty condenser The condenser should be flushed out with an acid solution by a qualified service technician
AIR COOLED CONDENSERS At least once a month the face area of the condenser should be inspected for accumulation of dirt and dust Surface dust and dirt can usually be removed with a stiff brush andor vacuum cleaner After brushing hold a light between the fan blades and look through the condenser from the opposite side This procedure will locate those areas where accumulated dirt has lodged between the condenser fins To clean these areas obtain a small tank of nitrogen or C02 with a needle control valve or pressure regulator with a small hose attached and proceed as follows
(1) Place a damp towel or cloth over the face area of the condenser
(2) Open the control valve or regulator on the tank releasing pressure to the coil from the back side cleaning the condenser
(3) Check the condenser periodically with the light and continue the treatment until the fins are clean
For maximum performance replace all worn O-Rings Seals Blades etc
CAUTION USE ORIGINAL OR AUTHORIZED REPLACEMENT PARTS ONLY WITH THIS FREEZER
Mig by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline illinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
19
20
PULLEY ALIGNMENT AND BELT TENSION ONLY TO BE PERFORMED BY A QUALIFIED SERVICE TECHNICIAN
WARNING
A MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFF POSITION AND THAT THE MAIN POWER SUPPLY IS DISCONNECTED
Remove the side panels to expose the pulleys and belts
Check the alignment of the beater motor pulley and gear reducer pulley by placing a straight edge across the faces of the two pulleys If the pulleys are not aligned adjust as necessary until proper alignment is obtained
Depress the belts with a finger at a point midway between the two pulleys When properly adjusted the belts should depress 12 from its normal position with approximately 5 pounds of pressure If the belts are too tight or too loose adjust as necessary until proper belt deflection is obtained Loosen four (4) bolts which hold the motor mounting plate to the frame With these loose adjust tension bolt in or out as required to obtain proper belt tension Retighten bolts
BELTS
Periodically inspect the belts If they are worn excessively replace both belts For best results it is advisable to replace both belts as they are manufactured in matched sets
SCRAPER BLADES
NOTE Be sure to purge all of the sanitizer from the mix system before operating the freezer (see page 12) Failure to completely remove sanitizer or water trom the freezing cylinder before placing the machine in the Automatic position may cause blade breakage and damage the freezer
o o
NEW BlADE WORN BLADE
Replace blades if worn 316 or more
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
END PLAY FOR BEATER DRIVE COUPLING
It is very important that the drive coupling located on the gear reducer be set properly Referring to the Drive Coupling Illustration the following procedure should be followed in setting the end play
WARNING
MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFF POSITION AND THAT THE ELECTRICAL POWER TO THE MACHINE IS DISCONNECTED SO THAT THE UNIT WILL NOT OPERATE
------
DRIVE COUPLING ILLUSTRATION
REF DESCRIPTION REF DESCRIPTION 1 Gear Reducer 6 Reducer Mounting Plate 2 Beater Shaft 7 Set Screws 3 Shaft Seal 8 Bolt Gear Reducer 4 Drive Coupling 9 Bolt Reducer Mounting Plate 5 Spacer 10 Key
11 Output Shaft
Improper drive coupling spacing will damage the beater shaft dispensing head and drive coupling When checking end play settings or replacing a coupling proceed as follows
REMOVING COUPLING
WARNING
DISCONNECT MAIN POWER SUPPLY
Mig by H C DUKE amp SON INC bull 2116 Eighth Allenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SO SERVE bull SHAKE bull SLUSH
21
22
(1) Remove Beater Shaft (Ref 2)
(2) Remove both drive belts (not shown)
(3) Remove gear reducer bolts (Ref 8) Six (6) bolts are located around the face of the reducer
NOTE Remove the top bolt last holding the bottom of the reducer as you do so
(4) Remove the gear reducer (Ref 1) and place-on table or bench
(5) Replace two (2) bolts (Ref 8) one (1) at the top and one (1) at the bottom so that the reducer cover will not come off while the coupling is changed
(6) Loosen the four (4) set screws (Ref 7) and remove the drive coupling (Ref 4) Should the coupling be stuck tight to the ouput shaft lightly tap the coupling from the back with a hammer and bar Sometimes due to age this coupling will stick so tight it will have to be removed with a pulley removing tool or a wheel puller
(7) Remove the key (Ref 10)
INSTALLING THE NEW COUPLING
(1) Clean gear reducer output shaft (Ref 11) with fine emery cloth and slide the new drive coupling on the reducer shaft The coupling should slide on the shaft all the way without the key If the coupling doesnt slide completely on check both coupling and reducer shaft for burrs When a smooth sliding fit is achieved remove coupling and proceed with final assembly
(2) Place key (Ref 10) in keyway slot on the reducer output shaft Keep the key flush with the front end of the output shaft (Ref 11)
(3) Slide the coupling (Ref 4) on the output shaft until it bottoms out on the shaft Leave the four (4) set screws loose as the coupling will have to be adjusted
(4) Remove the two (2) bolts added in preceding Step 5
(5) Place one (1) gear reducer bolt (Ref 8) in the top hole of the cylinder mounting plate
(6) Insert gear reducer into cylinder mounting plate and start top bolt (Ref 8) Do nol tighten completely Now insert the other bolts one at a time When all bolts are in tighten each boll
NOTE Due to very close tolerance between the gear reducer and cylinder mounting plate no alignment is required when Installing the reducer When the reducer bolts are tightened the reducer will seH-align with the cylinder
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
(7) Insert the beater shaft (Ref 2) with the shaft seal and blades into the cylinder and engage beater shaft in the drive coupling Place bushing on front of beater shaft
(8) Tape a dime (10 cents) to the back of the dispensing head in the very center at the point where the beater shaft touches the dispensing head The dime is used to acquire the proper end play setting on the drive coupling which is approximately 332
(9) Place the dispensing head into the cylinder and tighten with the hand knobs Important make sure hand knobs are tight and head is against the end of the cylinder tube
(10) Slide the drive coupling (Ref 4) forward until it is tight against the beater shaft and lock into place the four (4) set screws (Ref n
(11) Remove the dime from the back of the dispensing head
(12) Replace the drive belts
(13) Turn on electrical power
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
23
PANEL BREAKDOWN - 917CAB
~--~
3
REF PART No 1A 114544 1B 112991 2A 136075 2B 136102
3A 137027 3A 137028
3A 136105 3B 136103
3B 134817 4 134818
4 136101 5A 114780
5A 113570 5B 112967
6 112960 7 133291
24 A 917CAB only
I
dJ
DESCRIPTION Frame ssmiddoty Frame ASsmiddoty Lower Side Panel Lower Side Panel LH Side Panel RH Side Panel Upper Side Panel Upper Side Panel Upper Side Panel Rear Panel Rear Panel Top Cover ASsmiddoty Top Cover ASsmiddoty Top Cover ASsmiddoty Filler Panel ASsmiddoty Top Filler Strip
B bull 44 CAB only
~
[At 16 lt0
REF 8
9 10 11 12 12A 13
14 15 16 16A
Air Cooled only
PART No DESCRIPTION 132687 Dispense Panel 134247-01 Dispense Panel Cab-W
Drip Tray (See Pg 35) 114260-01 Door Assmiddoty wIHinges 132444-01 Left Hand Filler Strip 162045 Upper Hinge 162052 Spring LH 162046 Lower Hinge 160026 Screw 160020 Bolt 160139 Washer 110205 Syrup Jar Enclosure 160563-01 Door Gasket 01-Groove) 159174 Drip Tray Button 160293 Clip for Button
Water Cooled only
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
~~
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REF PART No DESCRIPTION REF PART No DESCRIPTION 1 114538 Frame Assy 10 162045 bull Upper Hinge 2 136289 Side Panel LH lOA 162052 Spring LH 3 136313 Rear Panel 11 162046 Lower Hinge 4 114006 Top Panel AC llA 160026 Screw 4A 114428 Top Panel WC l1B 160020 Bolt 4B 114157 Top Panel AC Remote l1C 160139 Washer 5 113983 Front Panel Assy 927CAB 12 136216 Side Panel RH 5A 113985 Front Panel Assy 957cAB 13 160563 Door Gasket (V-Groove) 6 130021 Rear Corner Channel RH 14 159174 Drip Tray Button 6A 135254 Rear Corner Channel LH 14A 160293 Clip for Button 7 137228 Dispensing Panel 162108 Stop Pin (Screw In) 8 Drip Tray (See Pg 35) 136199 Door Pull 9 114260 Door Assy wHinges
25
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
SOFT SERVE CAB ELECTRICAL BOX
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 Contactor (Order By Freezer 5 150463 Selector Switch
Serial Number) 6 159235 Toggle Switch (Pump) 2 Overload (Order By Freezer 7 150456 Spigot Switch
Serial Number) 7A 136124 Button - Spigot Switch 2A Heater Coil (Order By Freezer 7B 162302 Spring - Spigot Switch
Serial Number) 8 150553 Pilot Light - Amber 3 Starter (Order By Freezer 9 150552 Pilot Light - Red
Serial Number) 10 161026 Thermometer (Not Shown) 4 150208 Timer
26
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Pointed u
- - --- -
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prifllcl If USA
In-
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SOFT-SERVE - SINGLE HEAD CAB
REF PART No 1 151351
2 3 4 5 6 151044
151052 7
8 155039 9 155400 10 155117
11 151084
12A 159021 13 155401 13A 155423 14 155403 15 155422
16 154976 16 154975 17 159203 18 155051 19 112901
155410 20 155044
151348
DESCRIPTION Capacitor Relay Assembly (single phase)
150247 Start Capacitor
150249 Run Capacitor 150245 Relay Motor Capacitors (order by freezer serial no) Gear Reducer (see gear reducer breakdown page 36) Driven Pulley (order by freezer serial no) Belt (order by freezer serial no) Motor 1-phase 230 volt Motor 3-phase 208230 volt Driver Pulley (order by freezer serial no)
Water Condenser Automatic Expansion Valve (Cylinder) Air Condenser
Condenser Fan Motor
Condenser Fan Blade High Pressure Cut-Out shyHigh Pressure Cut-Out shyLow Pressure Cut-Out Solenoid Valve
Compressor 230160
AC WC
Compressor 208-230360 Sight Glass Drier (38) Receiver Tank Assembly Water Valve (not shown) Service Valve Compressor Mounting Kit
Note I) lt0 For All 50-Cycle Freezers Order By Freezer Serial Number
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Printad I usA
30
c W -I o o o a w ~ 3
III
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w gta w en u o en
SOFT-SERVE - DOUBLE CAB - WATER COOLED REF PART No DESCRIPTION 1 155026 Water Condenser (B-side) 1 A 155039 Water Condenser (A-side) 2 159203 Sight Glass 3 155051 Drier (38) 4 155400 Automatic Expansion Valve (Cylinder) 5 Gear Reducer (see gear reducer breakdown page 36) 6 155410 Water Valve 7 155423 High Pressure Cut-Out 8 155403 Low Pressure Cut-Out 9 154976 Compressor 230160
151351 Capacitor Relay Assembly (Single Phase) 150247 Start Capacitor 150249 Run Capacitor 150245 Relay
9A 154975 Compressor 208-230360~-11 NOT USED ON THIS MODEL 12 155442 Low Temp Control 13 Driven Pulley (order by freezer serial no) 14 Belt (order by freezer serial no) 15 Driver Pulley (order by freezer serial no) 16 155422 Solenoid Valve 17 151044 Motor 1 phase 230 volt 17A 151052 Motor 3 phase 208230 volt 18 Motor Capacitors single phase only (order by freezer serial no)
Note For All 50-Cycle Freezers Order By Freezer Serial Number
cgt
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH _InU5A
32
c W J o o o -a oCt
aI oCt o W I m ) o c w gta w Ch t--LL o Ch
SOFTmiddotSERVE bull DOUBLE CAB - AIR COOLED REF PART No 1 155120 2 159020 3 151080 4 155400 5 6 159203 7 155051 8 112901 9 151044 9A 151052 10 11 12 14 154976
14A 154975 15 155401 16 155403 17 155443 18 155442 19
21 155422
DESCRIPTION Condenser Fan Blade Fan Motor Automatic Expansion Valve (Cylinder) Reducer (see gear reducer breakdown page 36) Sight Glass Drier Receiver Assembly Motor 1-Phase 230 Volt Motor 3-Phase 208230 Volt Driven Pulley (order by freezer serial no) Belt (ordr by freezer serial no) Driver Pulley (order by freezer serial no) Compressor 230160 151351 Capacitor Relay Assembly (Single Phase)
150247 Start Capacitor 150249 Run Capacitor 150245 Relay
Compressor 208-230360 High Pressure Cut-Out Low Pressure Cut-Out Cabinet Thermostat Low Temp Thermostat NOT USED ON THIS MODEL Motor Capacitors single phase only (order by freezer serial no) Solenoid Valve
Note For All 50-Cycle Freezers Order By Freezer Serial Number
Vl Vl
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prinled In USA
CAB PARTS BREAKDOWN
REF PART No DESCRIPTION PART No DESCRIPTION 1 155109 Cabinet Coil 136297 Condensate Pan (Not Shown) 1A 155113 Motor Cabinet Fan 196092 Mix Tank 7-12 Gal 1B 155099 Fan Blade Cabinet Coil 113997 Front Lid Mix Container
7-12 Gal 136248-01 Rear Lid Mix Cont 7-12 Gal
10 155416 CAB Automatic Expansion 130092 Mix Tube Valve 196028 Mix Tank 10 Gal
137119 Probe 11 -1 4 shy1E 155114 Fan Grill amp Bracket 7-12 Gal Container 1F 155116 Knob 137119-01 Probe 10-34 shy2 113898 DPR Pump Less Motor 7-12 amp 10
(see pump breakdown Gal Container pg 38) 137119-02 Probe 10-14 shy
3 196061 Mix Hose (sold by the foot) 10 Gal Container 4 150416 Door Switch 137120 Base Probe Mtg 4A 114630 Actuator Door Switch 160500 O-Ring
(Not Shown) 114572 Hose Clamp (Not Shown) 5 150527 Retractable Cordset 34
MIg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prlmd UsA
MERCHANDISING ASSY
PART No 115108 115107
PART No
196107-01 196108-01 114610 114608 115132 199030
PART No 162105 162106 112978 158004 158021 158022 158078 158000 158056 158000A 158014 158014A 161000 158049
DESCRIPTION 2S Merchandiser-927-957-978CAB 24 Merchandiser-917CAB
DRIP TRAY
DESCRIPTION
24 Drip Tray-917CAB 26- Drip Tray-927-957-978CAB 24 Tray Insert-917CAD 26 Tray Insert-978CAB-927CAB 26 Tray Insert-957CAB Rubber Bumper (only)
DESCRIPTION Caster With Brake Caster Without Brake Leg-6 4 Cylinder Brush Mix Hose Brush 58 Dia w6 Ft Handle 14 Pump Brush Drain Tube Brush Petrol Gel (12 tube carton) Petrol Gel (6 tube carton) Pe1rol Gel (per tube) Stera Sheen (per case) Stera Sheen (per jar) Pocket Thermometer 1 Dial Z32 Overrun Scale
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SNAKE bull SLUSH
35
36
GEAR REDUCERS Order By Freezer Serial Number
Model 3 CB
153345 5-1 Ratio B side 153004 High Speed Cup ~ (2 ea required) 153005 High Speed Bearing (2 ea required) 153008 Slow Speed Cup (2 ea required) 153009 Slow Speed Bearing (2 ea required) 153052 Slow Speed Seal (2 ea required) 153054 High Speed Seal (2 ea required) 153313 Brass Gear 5-1 Ratio 153336 Slow Speed Shaft Only 5-1 Ratio 153316 Worm Gear On Shaft 5-1 Ratio 114873 Gasket Set
Model 4 CB
153342 10-1 Ratio A side 153343 10-1 Ratio B side
153014 High Speed Cup (2 ea required) 153015 High Speed Bearing (2 ea required) 153011 Slow Speed Cup (2 ea required) 153012 Slow Speed Bearing (2 ea required) 153051 Slow Speed Seal (2 ea required) 153053 High Speed Seal (2 ea required) 153349 Brass Gear 10-1 Ratio 153339 Slow Speed Shaft OnIy 10-1 Ratio 153347 Worm Gear on Shaft 10-1 Ratio 114874 Gasket Set
Winlwin Model
153341 Wintwin 10-1 Ratio A and B Side
153014 High Speed Cup (2 ea required) 153015 High Speed Bearing (2 ea required) 153011 Slow Speed Cup (2 ea required) 153012 Slow Speed Bearing (2 ea required) 153051 Slow Speed Seal (2 ea required) 153053 High Speed Seal (2 ea required) 153349 Brass Gear 153350 Slow Speed Shaft Only 153348 Worm Gear on Shaft 11 4874 Gasket Set
158055 Gear Reducer OU 51001
Drive Coupling (Order By Machine Serial Number)
Mfg by H C DUKE amp SON INC bull 2115 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
917 amp 927 Beater Shaft Assembly
957 Beater Shaft
Item Part No Description
1 196079 Bushing-Cylinder 2 114752 Beater-Assy Long (Shaft) 3 137334 Blade-Scraper Soft Serve 4- 160500 O-Ring (Shaft Seal) 5- 133098 Bushing (Washer-Shaft Seal) 6 160557 Seal-Beater Shaft
-Items 4-6 111875 Seal-Assy Shaft (Complete)
31
1 113438 2 196079 3 137334 4- 160500 5- 133098 6 160557
-Items 4-6 111875
Shaft-Assy Beater Bushing-Cylinder Blade-Scraper O-ring (Shaft Seal) Washer-Shaft Seal (Bushing) Seal-Beater Shaft (Cup)
Seal-Assy Shaft (Complete)
ao
DISPENSING HEAD
16
r
Q
--~
-----_
REF PART No DESCRIPTION Tl3o 6 119928- Door Assembly shy Complete (Items 7-14) 11637- 7 196688 Door shy Less Parts
a 134921 Spigot shy Less Extension 9 134922 Handle Extension shy Spigot
10 162624 Handle 11 159295 OmiddotRings shy Spigot (Lots of 5)12 159309 O-ring shy 4 - Door 13 196066 Air Relief Screw 14 160621 a-Ring shy Air Relief Screw (Lots of 5)15 136126 Rod - Spigot Switch shy 917 8 927 16 136798 HMdKnob
38
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illmols 61244
SUPERIOR QUAUlY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
Duke Soft Serve Freezer Models 917R and 927RN
5 -______
7
6
UPDATEDDispense Head Assembly
Item Part No
115130 1 116321 2 160583 3 115129 4 160562 5 136126 6 134921 SA 162624 68 134922 7 159295 8 160584 9 162625 9A 114341 10 196185 10A 137870 108 136713
116410
Includes items 1-4 6-8
Description
Head-Assy Dispense (Complete) Head-Assy wActualor O-ring (Head-4-inch) Bleeder-Assy (Air Relief Plug) O-ring (Bleeder-Assy) Rod-Spigot Switch Spigot-long Single Handle-Black Tapered Handle-Spigot (Stainless Steel) O-ring (Spigot) O-ring (Extension) Knob-Hand Stud-Assy Cylinder 1-15116 inch (not shown) Nouie-Slar Adapter (accessory) Adapter-Yogurt Nozzle (not shown) Extension-Spigot (accessory-cake not shown) Kit-Dispense Head Switch
( Use only original or authorized replacement parts with this freezer )
DISPENSING HEAD
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH uu
REF PART No 114765
1 196082 2 114313 3 137018 5 136618 6 162626 8 134499 9 162625
10 115129 11 136794 12 159309 13 159295 14 160562 15 136713 16 160584
DESCRIPTION Door Assy-Complete Door-Less Parts Spigot Assy-Side Spigot Only-Center Extension Only-Center Handle Stud-Handle Stop Hand Knob Air Re1ief-Assy Rod-Spigot Switch O-Ring-4-Door O-Ring-Spigot O-Ring-Air Relief Extension-Spigot a-Ring
39
40
PUMP MOTOR AND HOUSING ASSEMBLY SAFETY SWITCH ASSEMBLY
PRESSURE SWITCH ASSEMBLY ijreg~
I
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH IIIUaA
CAB DPR PUMP BREAKDOWN
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 196091 Pump Base 46 114009 Pump Cover 2 136088 Pump Support 47 113464 Base Bracket Assembly 3 150784 Strain Relief Bushing 48 135725 Stud 1-78 4 Power Cord 49 160131 516 Flatwasher 5 160075 10-24 x 38 Screw 50 160293 Speed Clip 6 135416 Cover Electric Box 51 135724 Button 7 160141 14 Lockwasher 52 160140 10 Lockwasher 8 160491 14-20 x 34 Socket Screw 53 135726 Stud 3 9 113497 Motor Cord 18-3 SJT 54 160109 10-24 Hex Nut 10 151127 Motor 40 RPM Soft Serve 55 135729 Switch Actuator 11 160023 14-20 x 1 Screw 56 135731 Stop - Max Pressure 12 153317 Half Moon Key 57 162315 Spring - Soft Serve 13 112925 Cam Drive Plate Assembly 58 160138 10 Flat Washer 14 160495 14-20 x 14 Set Screw 59 160304 10-24 Stop Nut 15 160369 Pin 60 150456 Pressure Switch 16 134614 Swing Clamp 61 135744 Insulator - Fiber 17 134521 Adjusting Clamp 62 160381 6-32 x 1 Socket Screw 18 160488 Thumb Screw 63 160393 6 Flatwasher 19 134604 Bearing Bushing 64 160146 6 Lockwasher 20 134602 Connecting Rod 65 160309 6-32 Hex Nut 21 134601 Piston 66 160006 6-32 x 14 Screw 22 159295 O-Ring 67 160001 8-32 x 38 Screw 23 134603 Wrist Pin 68 160470 8 Lockwasher 24 136089 Cylinder 69 150481 Circuit Breaker 25 199011 Washer Valve 70 135727 Switch Bracket 26 159282 O-Ring 71 136311 Spacer - Cover Switch 27 113839 Pump Valve Housing 72 160028 Truss Head Screw
Assembly (Metal) 14-20 x 34 SST 28 160582 O-Ring 73 160141 Lockwasher 14 29 199020 Sleeve Rubber 74 160104 Hex Nut 14-20 30 135793 Retainer Clip 75 136312 Button Guard 31 135791 Adapter Hose Outlet 76 160020 Hex Hd Cap Screw 32 160581 O-Ring 14-20 x 1 SST 33 135790 Piston 77 113869 Switch Bracket 34 162308 Spring Soft Serve 78 136110 Button Cover Switch 35 135792 Drain Port 79 162314 Spring 36 160611 O-Ring 80 150456 Switch Pump Safety 37 135896 Hose 24 81 135004 Switch Cover 38 160738 Hose Clamp 82 160296 Screw RH 39 136288 Keeper 6-32 x 1-14 40 160554 O-Ring 83 160146 Lockwasher 6 41 160368 Wing Nut Int Tooth 42 130054 Diaphragm Housing 84 160393 Flatwasher 6 43 199019 Diaphragm 85 160309 Hex Nut 6-32 44 196074 Air Tube-Curved 86 114572 Hose Clamp 45 163433 Air Meter - 20 87 160048 14-20 x 12 TRHM
(other sizes available) 88 160308 6-32 x 516 RDHM 89 114581 Circuit Breaker Bracket
Not Shown 90 163109 Stop Pivot 112791 DPR Pressure Gauge
41
Mfg by H C DUKE amp SON INC 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
42
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Unit does not operate 1 Fuse blown at main disconshy 1 Check fuse size check for low nect voltage if not within 10 of
nameplate rating install transformer or call power company
2 Beater motor out on overload 2 Press starter reset button and check for low voltage Check producllemperalure and overrun
3 Disconnected or broken wife 3 Check wiring and wire connecshyin electrical circuit lions repair or replace lead
wires as necessary
4 Faulty selector switch 4 Replace selector switch
5 Out on high pressure 5 Check for low waler supply or dirty air conden ser
6 Out on low pressure 6 Check limit control and freon charge
Compressor does not operate f Troubte in compressor con- I Refer to Trouble-Shootingshyor operates improperly densing circuit Compressor I Condensing
Circuit
2 Faulty capacitor assembly 2 Replace capaCitor assembly (Single phase only)
3 Faulty contactor 3 Replace contaclOr or pOints
Compressor operates but 1 Loose con neclion at motor 1 Tighten connection beater motor does not starter coil (electrical box)
2 Open starter coil 2 Replace coil
3 Faulty capacitor assembly 3 Replace capaCitor assembly (Single phase only)
Dispensed product too hard 1 Cylinder themostat erratic 1 Adjust thermo slat or replace or set too low
2 Faulty time delay relay 2 Replace time delay relay
3 Solenoid valve leaking 3 Replace solenoid valve
4 Low suction pressure 4 See chart on page 15 for adshyjustments
Leaking of mix from rear housshy 1 Damaged bealer shalt seal 1 Replace shaft seal or O-ring ing discharge tube to drip tray inside seal assy
Mig by H C DUKE amp SON INC bull 2116 Eighlh Avenue Easl Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Mix leaking at dispensing head 1 Faulty 4 O-Ring
2 Head not properly installed
1 Replace 4 O-Ring
2 Install head properly
Mix sours in cabinet 1 Cabinet thermostat setting too high
2 Cabinet thermostat detective
3 Cabinet solenoid valve deshyfective
4 Cabinet switch defective
5 Beater motor out on overshyload (cab side)
1 Adjust thermostat
2 Replace thermostat
3 Replace coil or solenoid
4 Replace cabinet switch
S Reset overload for beater motor See pg 42 unit does not operate
Cabinet too COld
Machine runs continually and Product continues to get colder
Compressor operates only when dispensing
Unit runs conMuously Product does nol reach 180 F temperature
6 Door sWitch defectIVe
1 Cabinet thermostat setting too low
2 Defective thermostat
3 Cabinet solenoid stuck open
4 Cabinet expansion valve set too low
1 Plunger switch out of adjustshyment
2 Su ction pressure too low
3 Defective plunger switch
4 Plunger switch rod engaged
5 Faulty time delay relay
6 Starter or relay contacts stuck
7 Faulty thermostat or bulb not deep enough in well
6 Replace door SWitch
1 Adjust thermostat
2 Replace thermostat
3 Replace solenoid
4 Adjust cabinet expansion valve (See pg 15)
1 Adjust plunger switch
2 Adjust expansion valve and check freon charge
3 Replace plunger switch
4 Close plunger completely
5 Replace time delay relay
I 6 Check contacts i
7 Check bulb location or replace thermostat
1 Cylinder themostat setting 1 Adjust thermostat or replace too high or thermostat deshyfective
1 Trouble in compressor I condensing system
2 ExpanSion valve setiing is too high
3 Low on refrigeranl
1 See Trouble-Shooling-CompressorI Condensing circuit
2 Adjust expansion valve
3 Check and repair leak and recharge
1
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE SLUSHbull
43
44
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Dispensed product too soft (Product temperature above 21 0 F)
1 Automatic expansion yalve incorrectly set or erratic in operation
-2 Leak in refrigeration system
resulting in little or no refrigeration
1 Adjust or replace expanSion valve
2 Pump down system or remove refrigerant charge repair leak evacuate and recharge
3 Excessive oil in system 3 Drain compressor to proper oil leyel pump down and flush system
4 Thermostat set too high taulty
or 4 Adiust thermostat or replace
Product dispenses slOWly out dispensing head
1 Reverse rotation 1 Change rotation to clockshywise from front of freezer
2 Dispensing speed adjustshyment boll too far down
2 Adjust bolt upward
3 Pum p problem 3 See pump Trouble-Shooting chart
4 Product too cold 4 See dispensed product too hard pg42
TROUBLE-SHOOTING CHART COMPRESSORICONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor will not start -hums intermittently (cycling on oyerload)
1 Improperly wired
2 Low line Yoltage
3 Open starting capacitor (single phase only)
4 High discharge pressure
1 Check wiring against diagram
2 Ask power company to increase YOltage to not less than 10 below nameplate rating or install transformer Check for inadequate wire size
3 Replace starting capacitor
4 CheCK water regulating valve setting Check water or air condenser and clean if necessary Make sure disshycharge shut-oft valve is open
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor starts but remains 1 Low line voltage 1 Ask power company to in start windings increase voltage to not less (Single phase only) than 10 below nameplate
rating or install transrormer
2 Improperly wired 2 Check wiring against drawing Check wire size
3 Running capacitor shorted 3 Check by disconnecting running capacitor
4 Starting capacitor weak 4 Check capacitor replace
5 High disCharge pressure 5 Check water regulating valve check water or air condenser and clean il necessary Check discharge shut-off valve
Starter burned out 1 Low line voltage 1 Ask power company to inshycrease voltage to not less than 10 below nameplate rating or install transformer
2 Excessive line voltage 2 Ask power company to reduce voltage to maximum of 10 over nameplate rating
Starting capacitors burn out 1 Voltage 100 low 1 Ask power company to (Single phase only) increase voltage to not less
than 10 below nameplate rating or install translonmer
2 Improper capacitor 2 Replace capacitor with properly rated capacitor as listed in manual
Running capacitors burn out 1 Excessive line voltage 1 Ask power company to reshy(Single phase only) duce line voltage to not more
than 10 above rating 01 motor
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
45
46
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Unit operates long or continuously
1 Shortage of gas
2 Dirty condenser
3 Moisture in system
4 Compressor failing
1 Repair leak and recharge
2 Clean condenser
3 Evacuate and recharge system
4 Check compressor lor proper pressures If inadequate replace compressor
Head pressure too high 1 Refrigerant overcharge
2 Air in system
3 Dirty condenser (air cooled)
4 Unit location too warm (air cooled)
5 Restricted water cooled condenser
6 Water turned off or defective
1 Purge system
2 Purge system evacuate and recharge
3 Clean condenser
4 Relocate unIt away from restriction Place nothing against back or on top of unit
5 Clean or replace condenser
6 Turn on water Or replace water regulating valve regulating valve
Head pressure too low 1 Shortage 01 refrigerant 1 Repair leak and recharge
2 Water regulating valve open 2 Adjust regulating valve too wide
Water 1I0wing through water 1 Water regulating valve 1 Replace water regulating valve waste line when unit is not in operation
defective
Noisy compressor 1 Tubing raUle 1 Bend tubes away from contact
NOTE Refer to warranty card prior to compressor replacement
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING DPR PUMP
TROUBLE PROBABLE CAUSE REMEDY
Pump will not run 1 Pump cover removed 1 Install pump cover
2 Pressure switch actuating 2 Free bulton-check spring and
bulton stuck open (in) pressure switch alignment
3 Pressure switch burned out 3 Replace pressure switch
4 Starting switch in motor bad 4 Install new starting switch
5 Motor burned out 5 Replace motor
6 Circuit breaker kicked out 6 Allow to re- set Replace it or faulty circuit breaker will not
automatically re-set
Motor runs-cam drive plate 1 Loose cam drive plate 1 Tighten set screw in cam will not turn drive plate Check woodruff key
2 Gear stripped 2 Replace gear
Pump will not shut off Mix 1 Pressure swilch actuating 1 Free button-check pressure shoots out pressure relief bulton stuck closed (out) switch alignment
2 Pressure switch stuck in 2 Replace pressure switch closed position
3 Pressure switch assy out 3 Using pressure gauge adjust of adjustment pressure
4 Dirty or plugged diaphragm 4 Disassemble and clean housing (Ref 42) housing
5 Defective O-Ring on 5 Replace O-Ring pressure relief piston
Pump will not prime 1 Insufficient supply of mix 1 Replenish mix supply
2 Piston O-ring defective-no 2 Replace piston O-Ring and suction lubricate
3 Washer valve not sealing 3 Replace washer valve DO NOT LUBRICATE
Pump primes No pressure in 1 Sleeve (Rei 29) not sealing 1 Replace sleeve DO NOT cylinder properly LUBRICATE
2 Loose hose connection on 2 Install or tighten hose clamp pump valve housing (Ref 27)
Mix shoots out Of air intake line 1 Washer valve (Ref 25) 1 Replace washer valve-DO not sealing properly NOT LUBRICATE
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOfT SERVE bull SHAKE bull SLUSH
47
48
TROUBLE-SHOOTING DPR PUMP
Too much air overrun too high-popping problems
Product dispenses slowly out of disPenSing head
1 Air meter too large (Ref 45)
2 Air leak befween mix conshytainer and mix inlet
3 Air line hose crackedshysucking air (Ref 44)
4 Pump pressure too lowshycylinder not full
1 Pump pressure too low
2 PrOduct too cold
3 Low overrun
Diaphragm housing leaking mix 1 Diaphragm housing loose
2 Diaphragm defective
Piston drive assy noisy 1 Bushing bearing worn
2 Defective gear in gear motor
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SIfAKE bull SLUSH
REMEDY
1 Replace washer valve-DO NOT LUBRICATE
2 Install clamp on hose
1 Replace O-Ring and LUBRIshyCATE
1 Clean or replace air meter
2 Replace tube
1 Install smaller air meier
2 Repair as needed
3 Replace air line hose
4 Using pressure gauge adjust pressure switch
1 Using pressure gauge adjust pump pressure
2 Check product temperatureshyshould be about 18 F
3 Check meter-if plugged-clean
1 Tighten wing nuls (Ref 41)
2 Replace diaphragm (Ref 43)
1 Replace bushing bearing (Ref 19)
2 Replace gear
TROUBLE
Mix inlet hose loses prime
Mix on top of piston
PROBABLE CAUSE
1 Washer valve (Ref 25) not sealing properly
2 Mix inlet hose loose
1 Piston O-Ring leaking (Ref 22)
No Air (Overrun) 11 Ai r meter plugged (Ref I 45)
2 Curved air tube pinched
--
DPR PUMP aI
PART NO 199019(i) PART NO 199020 reg DIAPHRAGM RUBBER SLEEVE
PART NO159295 PART NO 159282reg O-RING O-RING0
PART NO 160581reg O-RING
o PART NO PART NO
PART NO199011() 160611(8) 160582 WASHER VALVE O-RING O-RING
PISTON
cJ
DIAPHRAGM HOUSING
CYLINDER
VALVE HOUSIN6 ASSEMBLY
PUUPOUTLET
DRAIN PORT
I PHNO309-755-4553 O-RING CHART HCDUKEampSONINC I
1 I84Z08 SOFT SERVE DISPENSING HEADS I
o PART NO 1605620
PAR~159--1b
PART NO PART NO 1605841 59295()
I PHNO 309-755-4553 O-R ING CHART HCDUKEampSONINC I
- Cover
- Table of Contents
- Safety
- Uncrating amp Inspection13
- Explanation of Electrical Controls
- Operation of Machine
- General Information
- Maintenance amp Adjustment
- Parts Breakdowns
- Trouble-Shooting Charts
- O-ring Charts
-
2
NOTE Be sure to completely read and understand this manual before operating this freezer
SAFETY
THIS SAFETY ALERT SYMBOL IDENTIFIES IMPORTANT PeRSONAL SAFeTY MESSAGES IN THIS MANUAL WHEN YOU SEE THIS SYMBOL BE ALERT TO THE POSSIBILITY OF PERSONAL INJURY DO NOT ATTEMPT TO CONTINUE UNTIL THE SAFETY PRECAUTIONS ARE READ AND THOROUGHLY UNDERSTOOD
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244 _ SUPERIOR QUALITY FREIZERS bull SOFT SERVE bull SHAKE bull SLUSH
UNCRATING AND INSPECTION When the unit is received and while the carrier is still present inspect the shipping crate for any damage which may have occurred in transit If the crate is broken or torn or punctured note the damage on the carriers freight bill and notify the carriers local agent immediately
A NOTE Be sure to properly support the machile when removing bolts and installing legs or casters
Remove the crate from the pallet and move the machine as close as possible to the permanent location Remove the shipping bolts on the bottom of the machine (figure 1) and install either the legs or casters (figure 2)
SERVICE CONNECTIONS AND ADJUSTMENTS
If your machine is located between two units of stationary equipment it is recommended that the machine be installed on casters and have flexible water and electrical connections A machine should be accessible from front rear and right side The compressor and water valve are located at the rear by removing the back panel The thermostats and expansion valve are located on the right side of the machine and can be serviced by removing the side panel Electrical controls are located al the front behind the merchanshydising sign On a double head machine the thermostats and expansion valve for the left cylinder are located behind the left side panel All materials and connections must conform to local codes andor the National Electrical Code
INSTALLATION
Your machine must be installed and serviced by an authorized service technician
Place the freezer in the proper location and level the machine This is done by adjusting the legs or casters so that the unit is level side to side and the front is approximately 14 lower than the rear to allow proper drainage from the freezing cylinder
c_ REMOVE HEX HEAD cREWS AND FLAT WASHERS
LEG SiJPPORT
PALLET
LEG~ SUPPORT
SET cREW
LEG
LEG COVER
Figure 1 MaChine bolted to Shipping Base Figure 2 Installing the Mounting Legs
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull sOFT SERVE bull SHAKE bull SLUSH
3
4
ELECTRICAL REQUIREMENTS
The phase and voltage of your machine are shown on the nameplate on the rear panel Voltage should be within plusmn10 of voltage indicated on nameplate Request local power company to correct voltage
WARNING
FAILURE TO CONNECT OR SUPPLY -PROPER VOLTAGE TO THIS FREEZER WILL VOID YOUR WARRANTY
SPECIAL NOTE On all Delta three phase circuits wild or high leg must be connected to L2 (red wire)
NOTE All machines single and 3 phase require a neutral line to complete the 115 volt circuit for the mix pump motor
ELECTRICAL CONNECTIONS
WARNING
IN ORDER TO PREVENT ACCIDENTAL ELECTRICAL SHOCK CONmiddot A NECT A POSITIVE EARTH GROUND TO THE SCREW PROVIDED IN THE CONNECTION BOX
You will find the connection box at the rear of the machine
Double CABS must be wired with two power lines Each side of these machines operates individually and separate wiring will allow service on either side without shutting down both sides
FUSES
Use dual element fuses rated at 25 over the full load amperage (FLAJ rating of the machine ReIer to the nameplate on the rear panel 01 the machine As mentioned before all double head machines should be wired and fused as individual units Use a flexible connection when permissible All materials and connections must conform to local codes and lor the National Electrical Code
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline illinOIS 61244
SUPIRIOft QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH iIIU1A
ELECTRICAL SPECIFICATIONS
REFER TO NAMEPlATE ON REAR OF FREEZER FOR ELECTRICAL SPECIFICATIONS
AIR COOLED MODELS
When installing self contained air cooled CAB models remember that the flow of air is from right to left through the upper portion of ttle machine-This means that you cannot have any obstruction on either side of the machine A minimum of six (6) inches clearance on either side is required Anything in this area will reduce the efficiency of these models
When installing all other air cooled cab models remember that the flow of air can either be from the sides through the top panel or from the rear through the top panel In each case a minimum of six (6) clearance must be maintained on either the side panels or the rear panel and the top panel must be free from obstructions Anything (including cone dispensers) in this area will reduce the efficiency of these models
WATER COOLED MODELS
Water cooled Single CAB models will require a 38 MPT water inlet and water waste connection
Water cooled Double CAB models will require a 12 MPT water inlet and water waste connection Both units are tied together so that one water inlet and one water waste is all that is required
All water connections are found on the bottom under the compressor mounting area and are clearly tagged-HWater Inlet and Water Waste It is suggested that a manual shut off valve be installed in the water inlet line at the time of installation
WARNING
DISCONNECT MAIN POWER SUPPLY AND WATER SUPPLY BEFORE BLOWING WATER OUT OF THE CONDENSER
CAUTION ALL WATER COOLED MODELS MUST HAVE CONDENSERS BLOWN OUT IF EXPOSED TO BELOW FREEZING TEMPERATURES AIR PRESSURE OF AT LEAST 20 LBS SHOULD BE PUT THROUGH THE WATER LINES STARTING INSIDE THE WATER VALVE IT IS RECOMMENDED THAT A QUALIFIED REFRIGERATION TECHNICIAN DO THIS
NOTE The water waste connection should be checked periodically to ensure water is not running when the freezer is not in operation
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
5
__
927CAB 917CAB
u
--shy
~lECTR~~ 5pound1([
MAlle~ QTr
i L
i I
MODEL 978-CAB T(p OF uNIT MUSt
CUAH to AlliIN AIH
ElE(TRKAl SERVICE
(MAIN liNEIlOX I()lTAufj
f
--=-~][-
1
ALL CONNECTIONS ARE MADE THROU(H BOTTOU Of FRpoundpoundZfR
MODEL 9S7-CAB
ELECTRICAL SEfIIIlCE
(~~l ~r 1I L _J I I I
I --I ____________--_L
N
TOP Of UNl r MUST BE KEPT CLEAR TO ALLOW AIR EXHAUST
26
bull
-1f2 MPT WAiER
- Y2 MPT WATfR OUT (WATER C(X)lED UNITS otaX)
ALL CONNECTIONS ARE MADE THROuWi eOTTOtt OF FREEZER
EXPLANATION OF ELECTRICAL CONTROLS SOFT SERVE CAB ELECTRICAL CONTROLS
The fotrowing is an explanation of each switch across the front of the machine
PUSH TO RESETmiddot Your machine is equipped with an electrical overload system so the beater motor is protected against burn out if your machine is stopped by the overload it will be necessary to push the reset button before it will start again If this happens frequently your machine should be checked for proper voltage or any unusual cause of strain on the beater motor
SELECTOR SWITCHmiddot This is a three position switch that controls the following operations
CLEANOUT (to the left) operates the beater motor only This position should be used in all cleaning and sanitizing operations OFF (Center Position) turns off the cylinder refrigeration and the beater motor AUTOMATIC (to the right) activates the cylinder refrigeration the beater motor and refrigeration to cabinet This is the normal operating position for both day and night operation
MIX PUMP SWITCH bull Controls the DPR pump located in the refrigerated mix storage cabinet Turn this switch to the left ON position for operation and to the right OFF position for disassembling cleaning and night operation
THERMOSTAT SWITCHmiddot Controls the day and night refrigeration cycles The DAY position to the left activates the low temperature refrigeration system and allows the beater motor to operate The NIGHT poSition to the right switches the refrigeration system to a medium temperature holding cycle
CABINET SWITCH bull Controls the cabinet refrigeration The cabinet refrigeration is on when the switch is turned to the left and off when turned to the right Cabinet is automatically on when the selector switch is in the AUTO position
TIMERmiddot is a quick freeze switch Turning the timer will bypass the thermostat forcing the compressor and beater motor to operate The timer can be used for quick start ups in the morning or for fast recovery when large portions are dispensed
CAUTION EXCESSIVE USE OF THE TIMER CAN CAUSE YOUR MACHINE TO FREEZE UP USE ONLY WHEN NECESSARY
RED PILOT LIGHT
When this light is on it is an indication that the compressor is running This can only be on when the Selector Switch is in the AUTO position This light should never be on when anything but approved product is in the freezer (never on when water sanitizer or milkstone remover is in the freezer)
AMBER PILOT LIGHT
When this light is on the agitator drive motor is running This may be on when the Selector Switch is in the CLEAN or AUTO position Whenever the red pilot light is on the amber should also be on
DIAL THERMOMETER
This is an indication of the approximate temperature of the evaporator It should be viewed as an indication of how well the freezer is operating Once familiar with the normal operating measurement (usually between 5 and 15 deg) it is easier to detect unusual or abnormal functions of the freezer Observation of the thermostat often during each day 01 operation is a goOd habit for all operators This is not a measurement of prOduct temperature
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline lInol5 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SWSH PrioMd Ull II
6
CAUTION SWITCHES 1 2 and 4 DO NOT SHUT OFF THE SUPPLY OF POWER TO THE MACHINE THIS ONLY PREVENTS THE CONTROLS FROM OPERATING IF ANY
A ELECTRICAL REPAIRS ARE REQUIRED DISCONNECT THE MAIN POWER SUPPLY TO THE MACHINE AT THE CONTROL PANEL OR FUSE PANEL
PLUNGER SWITCHmiddot This switch only works in the day mode when the selector switch is in the AUTO position When the dispensing handle is pulled down the plunger switch rod raises and engages the plunger switch to turn on the beater motor and compressor The plunger switch activates the time delay and overrides the thermostat When the dispensing plunger is returned to the closed position the machine will continue to run for 12 seconds on the time delay and will then turn off unless the termostat requires additional refrigeration
DISPENSING SPEED ADJUSTMENT
WARNING
A MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFF POSImiddot TION AND THAT THE MAIN POWER SUPPLY IS DISCONNECTED
All soft serve machines have a dispensing speed adjustment To make this adjustment it is necessary to remove the merchandiser and cover from in front of the electrical box Upon removal of this panel you will see the plunger switch mounting bracket (see page 26) At the top of this bracket is the adjusting screw After loosening the lock nut adjust the screw as required The further down you turn this screw the slower the product will come out If you do this with patience you can adjust the machine to the point where the unit cannot be outdrawn (turn to a product that is too soft)
CAUTION ADJUSTING THE SCREW TOO FAR DOWN CAN CAUSE THE MACHINE TO FREEZE UP
TEST OF INSTALLATION
Remove the dispensing head and beater shaft (See Washing Instructions) so that the unit can be tested Turn on the pump switch (pump cover must be in place) to insure that the pump is running turn switch off Turn the following switches on in this order (1) Thermostat switch DAY (2) Cabinet Switch ON and (3) selector switch AUTOMATIC Let the unit run and at this pOint check beater rotation (clockwise from front) frost line in cylinder (front to back) and cabinet refrigeration Allow the unit to run until it shuts of automatically Should you have a short cycle (machine turns on then off every 10 or 15 seconds) check the water inlet manual valve Insufficient supply of water to the machine will give you this short cycle After the machine turns off automatically turn the selector and cabinet refrigeration switch OFF Cabinet refrigeration system will not operate when cabinet door is open
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Molme illinOIS 61244
SUPERIOR QUALIlY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
OPERATION OF MACHINE DISASSEMBLY AND WASHING
Your Soft Serve machine has been completely tested at the factory It is important that the machine be dismantled washed and lubricated before operation
CAUTION ALL CONTROL SWITCHES MUST BE IN THE OFF POSITION AND THE MAIN POWER SUPPLY DISCONNECTED FOR DISASSEMBLY AND REASSEMBLY BE SURE THE MACHINE IS DEPRESSURIZED BEFORE PROCEEDING (See page 13)
Refer to pages 37 38 and 39
Remove the plunger switch rod by lifting this rod up and swinging the bottom portion out and then pulling down Place the plunger switch rod on the drip tray Remove the two hand knobs and pull the head assembly straight out You will find that this is tight as there is an a-ring on this head Remove lever pin pull out handle and plunger
Remove cylinder bushing and pull out the beater shaft holding the knives as you do so Remove rear seal from shaft Take the head and beater shaft assemblies to the washing area Wash all parts thoroughly in a warm detergent solution and then rinse Wash the drain tube and cylinder using the brushes supplied
NOTE Do not dry any parts - reassemble them wet or allow to air dry
NOTE All O-rings must be removed in order to properly wash parts
Remove the DPR Pump from the cabinet in the bottom of the freezer Details on this are given in the pump section of this manual on pages 9-10 following
LUBRICATION AND REASSEMBLY
NOTE We recommend using Petrol Gel or equivalent
Lubricate the a-ring inside the rear seal Place it on the shaft so cup side will be against back of freezing cylinder DO NOT LUBRIGA TE THE GRAY RUBBER SEAL This seal is held under tension against the back of the cylinder when the beater and door are in place The cup seal remains stationary while the shaft turns freely in the plastic bushing Place both blades on the beater shaft and slide the beater into the cylinder Make sure the blades are installed properly The portion of the blade containing 2 knobs should face away from the cylinder walls When inserting the beater place the rear blade on the bottom of the cylinder This will center the beater and allow alignment with the drive coupling Push the beater shaft in and rotate until beater is engaged in the drive coupling The front of the beater shaft when engaged in coupling should be about 12 inside the cylinder Lubricate the inside surface of the cylinder bushing and install in cylinder
CAUTION ALWAYS MAKE SURE THAT THE BEATER BUSHING IS ON THE FRONT OF THE BEATER SHAFT OPERATION WITH A MISSING OR BADLY WORN BEATER BUSHING WILL DAMAGE THE BEATER AND CYLINDER
Lubricate the a-rings on the dispensing plunger and insert the plunger half way into the head Insert the plunger handle and lock in place with the lever pin Lubricate the 4 a-ring and slide the head assembly over the two cylinder studs Replace the two hand knobs and tighten the head on the cylinder DO NOT overtighten the knobs If leakage occurs check the 4 a-ring Replace the plunger switch rod
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALllY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
9
10
DPR PUMP OPERATION AND MAINTENANCE A CAUTION ALL CONTROL SWITCHES MUST BE IN THE OFF POSITION AND THE MAIN POWER SUPPLY DISCONNECTED FOR DISASSEMBLY AND REASSEMBLY
DISASSEMBLY
Step 1 - Reference DPR pump breakdown pages 40 and 41 for assistance in identificashytion of pump parts and their associated reference numbers If the pump has been in operation be sure that it is depressurized before proceeding to step 2
Step 2 - Remove attached mix hoses and pump cover (Ref 46)
Step 3 - loosen the thumb screw (Ref 18) and swing away the clamp (Ref 16) Carefully remove the entire pump assembly from the pump support (Ref 2)
Step 4 - Remove wing nuts diaphragm housing and diaphragm (Ref 41 42 and 43)
Step 5 - Further disassemble the pump by removing the piston assembly including the piston connecting rod and wrist pin (Ref 20 21 and 23) Separate the wrist pin and connecting rod from the piston Remove the curved air tube air meter outlet hose adapter and cylinder (Ref 24 31 44 and 45) from the valve housing assembly (Ref 27)
Step 6 - Grasp the outlet hose adapter asembly (Ref 31) and remove the keeper (Ref 39) while pressing inward on the drain port (Ref 35) Carefully lift and remove retainer clip (Ref 30) Caution must be exercised when removing the retainer clip as the relief mechanism parts (Ref 33 34 and 35) are spring loaded Remove the piston spring and drain port
Step 7 - Remove all a-rings rubber sleeve (Ref 29) and washer valve (Ref 25) All parts disassembled in steps 2 through 7 should be washed thoroughly in a solution of mild detergent and water not exceeding 120deg F Rinse all parts
NOTE All O-rings must be removed in order to properly wash parts
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Mohne illinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
LUBRICATION AND REASSEMBLY
Reassemble by reversing the steps on page 10 and lubricate as follows
When replacing the flat rubber washer (Ref 25) DO NOT LUBRICATE Important -This rubber washer acts as the air and mix check valve and must lie flat against the top of the pump valve housing Install it over the mushroom cap and move it around to make sure that it is sealed Ins~n the sleeve (Ref 29) Like the washer valve this should not be lubricated and fits on the pump valve housing with the tapper to the bottom
All the O-rings on the pump should be lubricated lightly The O-ring on the piston (Ref 21) should be lubricated liberally as this is the major wearing O-ring and must provide a good seal
Install the O-ring and spring on the piston (Ref 33) Lightly lubricate the O-ring (only enough to make it shiny) Install the piston with the O-ring end in first Lubricate the O-ring on the drain port and install it in the adapter Push in on the drain port and slide the clamp over the top to lock it in place Place the keeper (Ref 39) over the exposed end of the drain port and install the hose and clamp on the drain port Install the pressure switch diaphragm in the diaphragm housing
The pressure switch diaphragm (Ref 43) requires no lubrication
Install the diaphragm housing and diaphragm on the two studs and tighten wing nuts hand tight Install the pump assembly on the bracket-drive assembly in the refrigerated cabinet The shoulder of the white bushing (Ref 19) faces the drive cam (Ref 13) when slid into place properly Be sure to insert the mix output body (Ref 31) over the diaphragm housing (Ref 42) Return swing and adjusting clamp to closed position and tighten thumb screw Replace mix hoses and tighten all hose clamps
NOTE The pump will not operate without the cover (Ref 46) in place
WARNING
MAKE SURE ALL HOSE CONNECTIONS AND THE SWING A CLAMP ARE TIGHT BEFORE PRESSURIZING MACHINE THIS SYSTEM PRODUCES 30-32 PSI DURING NORMAL OPERATION
11
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH PrIntId USA
12
SANITIZING INSTRUCTIONS
The washing and sanitizing instructions explained in this manual are required to maintain a clean sanitary machine Your Soft Serve machine should be disassembled cleaned and sanitized to insure the best possible product and machine operation
Prepare a solution of sanitizing water (for each barrel) in a 2-3 gallon container (Solution should be 200 PPM chlorine using Diversol or equivalent) Place the container in the refrigerated cabinet and insert the mix inlet hoSe or stainless steel mix tube in the sanitizer Turn the pump switch ON (located at front of machine) and allow the pump to build up pressure and shut off automatically Turn the selector switch to the CLEAN OUT position and allow the beater to run for 5 minutes This insures the sanitizing solution touching all of the internal parts Placing a container under the dispensing head release the solution from the cylinder by depressing the dispensing handle Do this slowly as the cylinder is under 30 pounds pressure HINT Remove serrated nozzle (Ref 2) for this operation Sanitize nozzle and install when mix is ready to be dispensed Leave the dispensing handle down until the pump has forced all or most all of the solution through the machine When completed turn the selector switch and pump switch OFF You are now ready to start your freezer
You are working with a pressurized machine Always check for possible leaks when sanitizing your machine A leak around the head is obvious and usually calls for the replacement of the dispensing head O-rings A leak in the shaft seal will flow out of the drain tube just below the dispensing head This usually requires the replacement of the shaft seal or shaft seal O-ring Any leakage in the pump would require that the O-ring be replaced at the point of leakage
NOTE Sanitizing is always done prior to starting the machine Never sanitize the day belore and let the machine sit overnight
START UP INSTRUCTIONS
After sanitizing immediately fitl the container with mix Place the mix inlet hose or stainless steel mix tube in the container of mix (If you are using a plastic bag container supshyplied by the dairy it is recommended that you notch the plastic hose or use a perforated mix can tube so that the bag cannot be drawn into the mix inlet restricting the flow of mix If not careful a hole can be made in the bag) Sanitizer will remain in the pump mix hose and cylinder Turn the pump switch on starting the pump and depress the dispensing handle opening the dispensing plunger Leave the dispensing plunger open until you receive
pure mix at the nozzle The mix will push the remaining sanitizer out of the machine if the plunger is left open Close the plunger after removing all remaining sanitizer (See page 20)
After the cylinder is pressurized and the pump has shut off place the selector switch in the AUTOMATIC position At this pOint make sure the cabinet switch is at the ON position and the thermostat switch is at the DAY position Allow the machine to cycle and freeze down Normally several refrigeration cycles will be needed before a frozen product can be dispensed
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
It is impossible to start the freezer and not have excess air in the cylinder Since you have air in the cylinder and the pump is also adding air to the mix on first start up you will have air pockets in the cylinder These pockets can be eliminated if after two or three cycles you will turn the selector switch to the OFF position Pump switch must be at ON position With the selector switch off slowly open the dispensing plunger and bleed off the excess air until liquid mix comes out the dispensing head Close dispensing handle allow the cylinder to fill and turn selector switch to AUTOMATIC At least 30 minutes cycling time should be allowed to insure a ready produ~l
CLEANING PROCEDURE - DRAINING MACHINE
Place selector switch on the front of the machine to CLEAN OUT and let the beater run for about five minutes This will allow the product in the cylinder to soften up Place a clean sanitized container under the dispensing nozzle and very slowly draw off the semishyfrozen cream until liquid mix appears at the nozzle Remove the stainless steel mix tube or mix hose from the mix container Leave the dispensing plunger open until all the mix has run out of the cylinder and place the container in the cooler for storage Place the mix inlet hose in a container of cold water allow the cylinder to pressurize and flush the machine with the selector switch on CLEAN OUT Follow with a container of warm water until machine is rinsed clean Place the selector switch and pump to OFF Refer to disassembly instructions (Ref page 9)
WARNING
YOUR SOFT SERVE MACHINE OPERATES ON 30-32 POUNDS PRESmiddot A SURE NEVER DISMANTLE ANY PART OF THE MACHINE UNLESS THE MACHINE HAS BEEN DEPRESSURIZED THE SELECTOR
SWITCH IS IN THE OFF POSITION AND THE MAIN POWER SUPPLY HAS BEEN DISCONNECTED DEPRESSURIZE THE CYLINDER BY OPENING THE SPIGOT WITH THE PUMP SWITCH IN THE OFF POSITION
CLEANING MIX HOSE
The CAB models use the DPR mix pump You must disconnect the mix hoses and clean them thoroughly USing a long handle brush and a suitable cleanersanitizer you must brush the interior of the mix hose to insure there is no build up of product on the walls of the hose Water temperature for this cleaning process should be 1800 F to meet some health codes After reassembly pump sanitizer through the hoses
Mfg by H C DUKE amp SON INC 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
13
14
GENERAL INFORMATION OVERRUN ADJUSTMENT
The overrun on your CAB machine equipped with a DPR pump is regulated by the air meter (Item 45-pump parts breakdown) You are supplied with three air metering plugs each containing a different size orifice The smaller the hole the lower the overrun The larger the hole the higher the overrun The orifice or hole in this air meter must be open at all times It is the only source of air into the freezing cylinder Check this daily
The mix will be a determining factor as to the amount of overrun you will be able to achieve Some mixes will accept more air than others thus regulating the size of air meter you can use Test to see which air meter will give you the best overrun and the best tasting shake Run each air meter for one day until you make the determination You may have a slightly higher overrun when you first start up the machine When the machine has run long enough to dispense at least one full cylinder of product you will have the overrun that the machine wil hold the remainder of the day
ADJUSTING PUMP PRESSURE
Only to be performed by a qualified service technician
A WARNING
DISCONNECT MAIN POWER SUPPLY BEFORE REMOVING PANELS
NOTE The pump will not operate without the cover in place
The DPR Pump is controlled by pressure in the mix line acting on the diaphragm (Ref 43) As the pump fills the freezer cylinder with mix pressure builds causing the diaphragm to expand As the diaphragm expands it contacts the button (Ref 51) which in turn depresses the pump pressure switch (Ref 60) The pressure switch button moves inward until the switch is opened turning off the pump motor When product is drawn from the freezer the diaphragm closes the pump pressure switch allowing the pump motor to restart Pump pressure will check the same with air mix or water We suggest the pressure be checked with air pressure only
Step 1 - Remove the rear panel from machine and the pump electrical box cover (Ref 6)
Step 2 - Locate the pressure adjusting nut (Ref 59) Turn the adjusting nut clockwise to increase pressure or counterclockwise to decrease pressure Usually one half turn of the adjusting nut will raise or lower the pressure of the model DPR pump two (2) PSIG
Step 3 - Install a quality pressure gauge in the mix output line Turn main power supply and pump switch to ON pOSition Caution Electrical power present through entire machine Allow the pump to pressurize until it shuts off automatically Observe the gauge pressure reading and disconnect main power supply Repeat the adjustment steps 1 through 3 until the proper pressure is obtained (30 to 32 PSIG) Reinstall the electrical box cover and rear panel
NOTE Pressure tine must be at least 6 fI long in order to obtain an accurate reading
A Pressure Gauge PIN 112791 may be purchased from your local distributor
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
PRESSURE RELIEF ASSEMBLY
The model DPR Pump incorporates a self contained safety pressure relief system The parts included in this assembly are (Ref 30 through 39) Any discharge of mix through the hose (Ref 37) is an indication of excessive pump pressure For corrective action refer to the trouble shooting section of this manual
REFRIGERATION SETTINGS
A WARNING
DISCONNECT MAIN POWER SUPPLY BEFORE REMOVING PANELS
The CAB Soft Serve machine contains two types of temperature control devices the expansion valve and the thermostat (explained in Thermostat Section) The expansion valve meters the flow of refrigerant to the cylinder and must be set correctly to give you maximum production
To locate the expansion valve remove the side panel On the single head CAB machines remove the right side panel The double head machines will have an expansion valve behind both right and left side panels
The expansion valve should only be adjusted by a refrigeration technician with refrigeration test gauges connected to the compressor Adjustments to the valve are shown in the following chart
REFRIGERATION SETTINGS MODEL TYPE OF COOUNG WATER AIR 917CAB 927CAB 957iAa I
Cyl Suction Pressure Rmiddot502 15middot17 (PSIG) 15-17 (PSIG)
9711CAS Cyl Suction Pressure R-502 15middot17 (PSIG) 15middot17 (PSIG)
ALL SOFT SERVE
CABS
Cab Suction Pressure Rmiddot502 Head Pressure Thermostat Differential
8middot10 (PSIG) 230-240 (PSIG)
17degmiddot22deg 7deg~8c
8-10 (PSIG) 230middot315 (PSIG)
17deg_22deg 7c -8deg
NOTE To correctly set the cylinder expansion valve the cabinet thermostat switch An must be in the OFF position (Full counterclockwise) with the compressor running
NOTE To correctly set the cabinet expansion valve the selector switch must be in the OFF position and the cabinet switch in the ON position (With the compressor running)
A refrigeration test gauge must be used when adjusting the suction pressure To reduce the suction pressure turn the adjustment screw on the expansion valve counterclockwise Do not turn more than 14 turn at a time Let the unit operate a sufficient length of time - at least two minutes - to properly read on the gauge the adjustment made
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline illinOIS 61244
SUPERIOR QUAUTY FREEZERS bull SOFt SERVE bull SHAKE bull SLUSH
15
16
THERMOSTATS
A WARNING
DISCONNECT MAIN POWER SUPPLY BEFORE REMOVING PANELS
Thermostat Au is the cabinet refrigeration thermostat The cabinet thermostat operates off of both the day and night switch operation to maintain 44 0 F or lower in the mix storage cabinet This thermostat can be adjusted by rotating the adjustment knob To set this thermostat colder turn the adjustment knob clockwise
CYLINDER THERMOSTAT
The cylinder thermostat is located behind the right side panel (on single head CABs) faCing the front of the machine On the double head CABs like the expansion valve a cylinder thermostat is located behind both the right and left side panels This control has two settings The first is the differential which should be set on 7-8deg F The other side of the control marked HIGH EVENT should be set between 17-220 F
The purpose of the cylinder thermostat is to maintain an 18deg F product during idle periods If the thermostat is set too cold and product is not drawn out of the machine a freeze up condition will result DO NOT run the product below 17deg F
NOTE The settings on the thermostat are ONLY to be used as a guide
For a correct adjustment a thermometer must be used to check the actual product temperature Each thermostat should be set in the field for the product being used Most of the time a temperature setting of between 18deg and 19deg F will maintain a satisfactory product Once the thermostat is set for the mix used it should require no further adjustment
MIg by H C DUKE amp SON INC 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH P~IIIIUSA
THERMOSTAT_________ Turn knob clockwise to make product colder
Differential adjustment
copy
COLDER ~ reg
copy5
2 6Igt
1 7 OFF
copy
THIS ASSEMBLY USED ON LEFT SIDE OF UNIT
RIGHT SIDE USES THIS ASSEMBLY WIO THERMOSTAT A (CAB THERMOSTAT)
MIg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
17
18
MAINTENANCE AND ADJUSTMENT
ONLY TO BE PERFORMED BY A QUALIFIED SERVICE TECHNICIAN
WARNING
MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFF POSITION AND THAT THE MAIN POWER SUPPLY IS DISCONNECTED BEFORE REMOVING PANELS
LUBRICATION INSTRUCTIONS
FAN MOTOR (Air Condenser) Lubricate annually with SAE 10 motor oil in the oil cups
CAUTION DO NOT OVER-LUBRICATE OVER-LUBRICATION CAN DAMAGE MOTOR
GEAR REDUCER The gear reducers are heavy duty worm-geared units manufactured to HC Duke specifications II traces 01 oil are found in the immediate area around the reducer repair the leak (usually an oil seal) and check the oil level When adding oil use only synthetic gear lube in the reducer
NOTE This is a special oil and will not mix with a petroleum base oil Contact your distributor when this oil is needed This oil should be changed at least once a year
OIL LEVEL PLUG
PROPER OIL LEVEL
OIL DRAIN USE SPECIAl PLUG OIL ONLY
USE SPECIAL LOILON=LY-- I
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH ~1U8A
MAINTENANCE AND ADJUSTMENT ONLY TO BE PERFORMED BY A QUALIFIED SERVICE TECHNICIAN
WARNING
MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFFA POSITION AND THAT THE MAIN POWER SUPPLY IS DISCONNECTED BEFORE REMOVING PANELS shy
BEATER MOTOR Beater motors are either single or three phase Capacitor starting is used on the single phase units The beater motor should be inspected and cleaned
WATER COOLED CONDENSER Depending on the condition of your water the condenser on your CAB machine may require cleaning from time to time Usually a restricted flow of water resulting in a high head pressure indicates a dirty condenser The condenser should be flushed out with an acid solution by a qualified service technician
AIR COOLED CONDENSERS At least once a month the face area of the condenser should be inspected for accumulation of dirt and dust Surface dust and dirt can usually be removed with a stiff brush andor vacuum cleaner After brushing hold a light between the fan blades and look through the condenser from the opposite side This procedure will locate those areas where accumulated dirt has lodged between the condenser fins To clean these areas obtain a small tank of nitrogen or C02 with a needle control valve or pressure regulator with a small hose attached and proceed as follows
(1) Place a damp towel or cloth over the face area of the condenser
(2) Open the control valve or regulator on the tank releasing pressure to the coil from the back side cleaning the condenser
(3) Check the condenser periodically with the light and continue the treatment until the fins are clean
For maximum performance replace all worn O-Rings Seals Blades etc
CAUTION USE ORIGINAL OR AUTHORIZED REPLACEMENT PARTS ONLY WITH THIS FREEZER
Mig by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline illinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
19
20
PULLEY ALIGNMENT AND BELT TENSION ONLY TO BE PERFORMED BY A QUALIFIED SERVICE TECHNICIAN
WARNING
A MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFF POSITION AND THAT THE MAIN POWER SUPPLY IS DISCONNECTED
Remove the side panels to expose the pulleys and belts
Check the alignment of the beater motor pulley and gear reducer pulley by placing a straight edge across the faces of the two pulleys If the pulleys are not aligned adjust as necessary until proper alignment is obtained
Depress the belts with a finger at a point midway between the two pulleys When properly adjusted the belts should depress 12 from its normal position with approximately 5 pounds of pressure If the belts are too tight or too loose adjust as necessary until proper belt deflection is obtained Loosen four (4) bolts which hold the motor mounting plate to the frame With these loose adjust tension bolt in or out as required to obtain proper belt tension Retighten bolts
BELTS
Periodically inspect the belts If they are worn excessively replace both belts For best results it is advisable to replace both belts as they are manufactured in matched sets
SCRAPER BLADES
NOTE Be sure to purge all of the sanitizer from the mix system before operating the freezer (see page 12) Failure to completely remove sanitizer or water trom the freezing cylinder before placing the machine in the Automatic position may cause blade breakage and damage the freezer
o o
NEW BlADE WORN BLADE
Replace blades if worn 316 or more
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
END PLAY FOR BEATER DRIVE COUPLING
It is very important that the drive coupling located on the gear reducer be set properly Referring to the Drive Coupling Illustration the following procedure should be followed in setting the end play
WARNING
MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFF POSITION AND THAT THE ELECTRICAL POWER TO THE MACHINE IS DISCONNECTED SO THAT THE UNIT WILL NOT OPERATE
------
DRIVE COUPLING ILLUSTRATION
REF DESCRIPTION REF DESCRIPTION 1 Gear Reducer 6 Reducer Mounting Plate 2 Beater Shaft 7 Set Screws 3 Shaft Seal 8 Bolt Gear Reducer 4 Drive Coupling 9 Bolt Reducer Mounting Plate 5 Spacer 10 Key
11 Output Shaft
Improper drive coupling spacing will damage the beater shaft dispensing head and drive coupling When checking end play settings or replacing a coupling proceed as follows
REMOVING COUPLING
WARNING
DISCONNECT MAIN POWER SUPPLY
Mig by H C DUKE amp SON INC bull 2116 Eighth Allenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SO SERVE bull SHAKE bull SLUSH
21
22
(1) Remove Beater Shaft (Ref 2)
(2) Remove both drive belts (not shown)
(3) Remove gear reducer bolts (Ref 8) Six (6) bolts are located around the face of the reducer
NOTE Remove the top bolt last holding the bottom of the reducer as you do so
(4) Remove the gear reducer (Ref 1) and place-on table or bench
(5) Replace two (2) bolts (Ref 8) one (1) at the top and one (1) at the bottom so that the reducer cover will not come off while the coupling is changed
(6) Loosen the four (4) set screws (Ref 7) and remove the drive coupling (Ref 4) Should the coupling be stuck tight to the ouput shaft lightly tap the coupling from the back with a hammer and bar Sometimes due to age this coupling will stick so tight it will have to be removed with a pulley removing tool or a wheel puller
(7) Remove the key (Ref 10)
INSTALLING THE NEW COUPLING
(1) Clean gear reducer output shaft (Ref 11) with fine emery cloth and slide the new drive coupling on the reducer shaft The coupling should slide on the shaft all the way without the key If the coupling doesnt slide completely on check both coupling and reducer shaft for burrs When a smooth sliding fit is achieved remove coupling and proceed with final assembly
(2) Place key (Ref 10) in keyway slot on the reducer output shaft Keep the key flush with the front end of the output shaft (Ref 11)
(3) Slide the coupling (Ref 4) on the output shaft until it bottoms out on the shaft Leave the four (4) set screws loose as the coupling will have to be adjusted
(4) Remove the two (2) bolts added in preceding Step 5
(5) Place one (1) gear reducer bolt (Ref 8) in the top hole of the cylinder mounting plate
(6) Insert gear reducer into cylinder mounting plate and start top bolt (Ref 8) Do nol tighten completely Now insert the other bolts one at a time When all bolts are in tighten each boll
NOTE Due to very close tolerance between the gear reducer and cylinder mounting plate no alignment is required when Installing the reducer When the reducer bolts are tightened the reducer will seH-align with the cylinder
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
(7) Insert the beater shaft (Ref 2) with the shaft seal and blades into the cylinder and engage beater shaft in the drive coupling Place bushing on front of beater shaft
(8) Tape a dime (10 cents) to the back of the dispensing head in the very center at the point where the beater shaft touches the dispensing head The dime is used to acquire the proper end play setting on the drive coupling which is approximately 332
(9) Place the dispensing head into the cylinder and tighten with the hand knobs Important make sure hand knobs are tight and head is against the end of the cylinder tube
(10) Slide the drive coupling (Ref 4) forward until it is tight against the beater shaft and lock into place the four (4) set screws (Ref n
(11) Remove the dime from the back of the dispensing head
(12) Replace the drive belts
(13) Turn on electrical power
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
23
PANEL BREAKDOWN - 917CAB
~--~
3
REF PART No 1A 114544 1B 112991 2A 136075 2B 136102
3A 137027 3A 137028
3A 136105 3B 136103
3B 134817 4 134818
4 136101 5A 114780
5A 113570 5B 112967
6 112960 7 133291
24 A 917CAB only
I
dJ
DESCRIPTION Frame ssmiddoty Frame ASsmiddoty Lower Side Panel Lower Side Panel LH Side Panel RH Side Panel Upper Side Panel Upper Side Panel Upper Side Panel Rear Panel Rear Panel Top Cover ASsmiddoty Top Cover ASsmiddoty Top Cover ASsmiddoty Filler Panel ASsmiddoty Top Filler Strip
B bull 44 CAB only
~
[At 16 lt0
REF 8
9 10 11 12 12A 13
14 15 16 16A
Air Cooled only
PART No DESCRIPTION 132687 Dispense Panel 134247-01 Dispense Panel Cab-W
Drip Tray (See Pg 35) 114260-01 Door Assmiddoty wIHinges 132444-01 Left Hand Filler Strip 162045 Upper Hinge 162052 Spring LH 162046 Lower Hinge 160026 Screw 160020 Bolt 160139 Washer 110205 Syrup Jar Enclosure 160563-01 Door Gasket 01-Groove) 159174 Drip Tray Button 160293 Clip for Button
Water Cooled only
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
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REF PART No DESCRIPTION REF PART No DESCRIPTION 1 114538 Frame Assy 10 162045 bull Upper Hinge 2 136289 Side Panel LH lOA 162052 Spring LH 3 136313 Rear Panel 11 162046 Lower Hinge 4 114006 Top Panel AC llA 160026 Screw 4A 114428 Top Panel WC l1B 160020 Bolt 4B 114157 Top Panel AC Remote l1C 160139 Washer 5 113983 Front Panel Assy 927CAB 12 136216 Side Panel RH 5A 113985 Front Panel Assy 957cAB 13 160563 Door Gasket (V-Groove) 6 130021 Rear Corner Channel RH 14 159174 Drip Tray Button 6A 135254 Rear Corner Channel LH 14A 160293 Clip for Button 7 137228 Dispensing Panel 162108 Stop Pin (Screw In) 8 Drip Tray (See Pg 35) 136199 Door Pull 9 114260 Door Assy wHinges
25
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
SOFT SERVE CAB ELECTRICAL BOX
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 Contactor (Order By Freezer 5 150463 Selector Switch
Serial Number) 6 159235 Toggle Switch (Pump) 2 Overload (Order By Freezer 7 150456 Spigot Switch
Serial Number) 7A 136124 Button - Spigot Switch 2A Heater Coil (Order By Freezer 7B 162302 Spring - Spigot Switch
Serial Number) 8 150553 Pilot Light - Amber 3 Starter (Order By Freezer 9 150552 Pilot Light - Red
Serial Number) 10 161026 Thermometer (Not Shown) 4 150208 Timer
26
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Pointed u
- - --- -
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prifllcl If USA
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SOFT-SERVE - SINGLE HEAD CAB
REF PART No 1 151351
2 3 4 5 6 151044
151052 7
8 155039 9 155400 10 155117
11 151084
12A 159021 13 155401 13A 155423 14 155403 15 155422
16 154976 16 154975 17 159203 18 155051 19 112901
155410 20 155044
151348
DESCRIPTION Capacitor Relay Assembly (single phase)
150247 Start Capacitor
150249 Run Capacitor 150245 Relay Motor Capacitors (order by freezer serial no) Gear Reducer (see gear reducer breakdown page 36) Driven Pulley (order by freezer serial no) Belt (order by freezer serial no) Motor 1-phase 230 volt Motor 3-phase 208230 volt Driver Pulley (order by freezer serial no)
Water Condenser Automatic Expansion Valve (Cylinder) Air Condenser
Condenser Fan Motor
Condenser Fan Blade High Pressure Cut-Out shyHigh Pressure Cut-Out shyLow Pressure Cut-Out Solenoid Valve
Compressor 230160
AC WC
Compressor 208-230360 Sight Glass Drier (38) Receiver Tank Assembly Water Valve (not shown) Service Valve Compressor Mounting Kit
Note I) lt0 For All 50-Cycle Freezers Order By Freezer Serial Number
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Printad I usA
30
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SOFT-SERVE - DOUBLE CAB - WATER COOLED REF PART No DESCRIPTION 1 155026 Water Condenser (B-side) 1 A 155039 Water Condenser (A-side) 2 159203 Sight Glass 3 155051 Drier (38) 4 155400 Automatic Expansion Valve (Cylinder) 5 Gear Reducer (see gear reducer breakdown page 36) 6 155410 Water Valve 7 155423 High Pressure Cut-Out 8 155403 Low Pressure Cut-Out 9 154976 Compressor 230160
151351 Capacitor Relay Assembly (Single Phase) 150247 Start Capacitor 150249 Run Capacitor 150245 Relay
9A 154975 Compressor 208-230360~-11 NOT USED ON THIS MODEL 12 155442 Low Temp Control 13 Driven Pulley (order by freezer serial no) 14 Belt (order by freezer serial no) 15 Driver Pulley (order by freezer serial no) 16 155422 Solenoid Valve 17 151044 Motor 1 phase 230 volt 17A 151052 Motor 3 phase 208230 volt 18 Motor Capacitors single phase only (order by freezer serial no)
Note For All 50-Cycle Freezers Order By Freezer Serial Number
cgt
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH _InU5A
32
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SOFTmiddotSERVE bull DOUBLE CAB - AIR COOLED REF PART No 1 155120 2 159020 3 151080 4 155400 5 6 159203 7 155051 8 112901 9 151044 9A 151052 10 11 12 14 154976
14A 154975 15 155401 16 155403 17 155443 18 155442 19
21 155422
DESCRIPTION Condenser Fan Blade Fan Motor Automatic Expansion Valve (Cylinder) Reducer (see gear reducer breakdown page 36) Sight Glass Drier Receiver Assembly Motor 1-Phase 230 Volt Motor 3-Phase 208230 Volt Driven Pulley (order by freezer serial no) Belt (ordr by freezer serial no) Driver Pulley (order by freezer serial no) Compressor 230160 151351 Capacitor Relay Assembly (Single Phase)
150247 Start Capacitor 150249 Run Capacitor 150245 Relay
Compressor 208-230360 High Pressure Cut-Out Low Pressure Cut-Out Cabinet Thermostat Low Temp Thermostat NOT USED ON THIS MODEL Motor Capacitors single phase only (order by freezer serial no) Solenoid Valve
Note For All 50-Cycle Freezers Order By Freezer Serial Number
Vl Vl
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prinled In USA
CAB PARTS BREAKDOWN
REF PART No DESCRIPTION PART No DESCRIPTION 1 155109 Cabinet Coil 136297 Condensate Pan (Not Shown) 1A 155113 Motor Cabinet Fan 196092 Mix Tank 7-12 Gal 1B 155099 Fan Blade Cabinet Coil 113997 Front Lid Mix Container
7-12 Gal 136248-01 Rear Lid Mix Cont 7-12 Gal
10 155416 CAB Automatic Expansion 130092 Mix Tube Valve 196028 Mix Tank 10 Gal
137119 Probe 11 -1 4 shy1E 155114 Fan Grill amp Bracket 7-12 Gal Container 1F 155116 Knob 137119-01 Probe 10-34 shy2 113898 DPR Pump Less Motor 7-12 amp 10
(see pump breakdown Gal Container pg 38) 137119-02 Probe 10-14 shy
3 196061 Mix Hose (sold by the foot) 10 Gal Container 4 150416 Door Switch 137120 Base Probe Mtg 4A 114630 Actuator Door Switch 160500 O-Ring
(Not Shown) 114572 Hose Clamp (Not Shown) 5 150527 Retractable Cordset 34
MIg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prlmd UsA
MERCHANDISING ASSY
PART No 115108 115107
PART No
196107-01 196108-01 114610 114608 115132 199030
PART No 162105 162106 112978 158004 158021 158022 158078 158000 158056 158000A 158014 158014A 161000 158049
DESCRIPTION 2S Merchandiser-927-957-978CAB 24 Merchandiser-917CAB
DRIP TRAY
DESCRIPTION
24 Drip Tray-917CAB 26- Drip Tray-927-957-978CAB 24 Tray Insert-917CAD 26 Tray Insert-978CAB-927CAB 26 Tray Insert-957CAB Rubber Bumper (only)
DESCRIPTION Caster With Brake Caster Without Brake Leg-6 4 Cylinder Brush Mix Hose Brush 58 Dia w6 Ft Handle 14 Pump Brush Drain Tube Brush Petrol Gel (12 tube carton) Petrol Gel (6 tube carton) Pe1rol Gel (per tube) Stera Sheen (per case) Stera Sheen (per jar) Pocket Thermometer 1 Dial Z32 Overrun Scale
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SNAKE bull SLUSH
35
36
GEAR REDUCERS Order By Freezer Serial Number
Model 3 CB
153345 5-1 Ratio B side 153004 High Speed Cup ~ (2 ea required) 153005 High Speed Bearing (2 ea required) 153008 Slow Speed Cup (2 ea required) 153009 Slow Speed Bearing (2 ea required) 153052 Slow Speed Seal (2 ea required) 153054 High Speed Seal (2 ea required) 153313 Brass Gear 5-1 Ratio 153336 Slow Speed Shaft Only 5-1 Ratio 153316 Worm Gear On Shaft 5-1 Ratio 114873 Gasket Set
Model 4 CB
153342 10-1 Ratio A side 153343 10-1 Ratio B side
153014 High Speed Cup (2 ea required) 153015 High Speed Bearing (2 ea required) 153011 Slow Speed Cup (2 ea required) 153012 Slow Speed Bearing (2 ea required) 153051 Slow Speed Seal (2 ea required) 153053 High Speed Seal (2 ea required) 153349 Brass Gear 10-1 Ratio 153339 Slow Speed Shaft OnIy 10-1 Ratio 153347 Worm Gear on Shaft 10-1 Ratio 114874 Gasket Set
Winlwin Model
153341 Wintwin 10-1 Ratio A and B Side
153014 High Speed Cup (2 ea required) 153015 High Speed Bearing (2 ea required) 153011 Slow Speed Cup (2 ea required) 153012 Slow Speed Bearing (2 ea required) 153051 Slow Speed Seal (2 ea required) 153053 High Speed Seal (2 ea required) 153349 Brass Gear 153350 Slow Speed Shaft Only 153348 Worm Gear on Shaft 11 4874 Gasket Set
158055 Gear Reducer OU 51001
Drive Coupling (Order By Machine Serial Number)
Mfg by H C DUKE amp SON INC bull 2115 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
917 amp 927 Beater Shaft Assembly
957 Beater Shaft
Item Part No Description
1 196079 Bushing-Cylinder 2 114752 Beater-Assy Long (Shaft) 3 137334 Blade-Scraper Soft Serve 4- 160500 O-Ring (Shaft Seal) 5- 133098 Bushing (Washer-Shaft Seal) 6 160557 Seal-Beater Shaft
-Items 4-6 111875 Seal-Assy Shaft (Complete)
31
1 113438 2 196079 3 137334 4- 160500 5- 133098 6 160557
-Items 4-6 111875
Shaft-Assy Beater Bushing-Cylinder Blade-Scraper O-ring (Shaft Seal) Washer-Shaft Seal (Bushing) Seal-Beater Shaft (Cup)
Seal-Assy Shaft (Complete)
ao
DISPENSING HEAD
16
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-----_
REF PART No DESCRIPTION Tl3o 6 119928- Door Assembly shy Complete (Items 7-14) 11637- 7 196688 Door shy Less Parts
a 134921 Spigot shy Less Extension 9 134922 Handle Extension shy Spigot
10 162624 Handle 11 159295 OmiddotRings shy Spigot (Lots of 5)12 159309 O-ring shy 4 - Door 13 196066 Air Relief Screw 14 160621 a-Ring shy Air Relief Screw (Lots of 5)15 136126 Rod - Spigot Switch shy 917 8 927 16 136798 HMdKnob
38
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illmols 61244
SUPERIOR QUAUlY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
Duke Soft Serve Freezer Models 917R and 927RN
5 -______
7
6
UPDATEDDispense Head Assembly
Item Part No
115130 1 116321 2 160583 3 115129 4 160562 5 136126 6 134921 SA 162624 68 134922 7 159295 8 160584 9 162625 9A 114341 10 196185 10A 137870 108 136713
116410
Includes items 1-4 6-8
Description
Head-Assy Dispense (Complete) Head-Assy wActualor O-ring (Head-4-inch) Bleeder-Assy (Air Relief Plug) O-ring (Bleeder-Assy) Rod-Spigot Switch Spigot-long Single Handle-Black Tapered Handle-Spigot (Stainless Steel) O-ring (Spigot) O-ring (Extension) Knob-Hand Stud-Assy Cylinder 1-15116 inch (not shown) Nouie-Slar Adapter (accessory) Adapter-Yogurt Nozzle (not shown) Extension-Spigot (accessory-cake not shown) Kit-Dispense Head Switch
( Use only original or authorized replacement parts with this freezer )
DISPENSING HEAD
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH uu
REF PART No 114765
1 196082 2 114313 3 137018 5 136618 6 162626 8 134499 9 162625
10 115129 11 136794 12 159309 13 159295 14 160562 15 136713 16 160584
DESCRIPTION Door Assy-Complete Door-Less Parts Spigot Assy-Side Spigot Only-Center Extension Only-Center Handle Stud-Handle Stop Hand Knob Air Re1ief-Assy Rod-Spigot Switch O-Ring-4-Door O-Ring-Spigot O-Ring-Air Relief Extension-Spigot a-Ring
39
40
PUMP MOTOR AND HOUSING ASSEMBLY SAFETY SWITCH ASSEMBLY
PRESSURE SWITCH ASSEMBLY ijreg~
I
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH IIIUaA
CAB DPR PUMP BREAKDOWN
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 196091 Pump Base 46 114009 Pump Cover 2 136088 Pump Support 47 113464 Base Bracket Assembly 3 150784 Strain Relief Bushing 48 135725 Stud 1-78 4 Power Cord 49 160131 516 Flatwasher 5 160075 10-24 x 38 Screw 50 160293 Speed Clip 6 135416 Cover Electric Box 51 135724 Button 7 160141 14 Lockwasher 52 160140 10 Lockwasher 8 160491 14-20 x 34 Socket Screw 53 135726 Stud 3 9 113497 Motor Cord 18-3 SJT 54 160109 10-24 Hex Nut 10 151127 Motor 40 RPM Soft Serve 55 135729 Switch Actuator 11 160023 14-20 x 1 Screw 56 135731 Stop - Max Pressure 12 153317 Half Moon Key 57 162315 Spring - Soft Serve 13 112925 Cam Drive Plate Assembly 58 160138 10 Flat Washer 14 160495 14-20 x 14 Set Screw 59 160304 10-24 Stop Nut 15 160369 Pin 60 150456 Pressure Switch 16 134614 Swing Clamp 61 135744 Insulator - Fiber 17 134521 Adjusting Clamp 62 160381 6-32 x 1 Socket Screw 18 160488 Thumb Screw 63 160393 6 Flatwasher 19 134604 Bearing Bushing 64 160146 6 Lockwasher 20 134602 Connecting Rod 65 160309 6-32 Hex Nut 21 134601 Piston 66 160006 6-32 x 14 Screw 22 159295 O-Ring 67 160001 8-32 x 38 Screw 23 134603 Wrist Pin 68 160470 8 Lockwasher 24 136089 Cylinder 69 150481 Circuit Breaker 25 199011 Washer Valve 70 135727 Switch Bracket 26 159282 O-Ring 71 136311 Spacer - Cover Switch 27 113839 Pump Valve Housing 72 160028 Truss Head Screw
Assembly (Metal) 14-20 x 34 SST 28 160582 O-Ring 73 160141 Lockwasher 14 29 199020 Sleeve Rubber 74 160104 Hex Nut 14-20 30 135793 Retainer Clip 75 136312 Button Guard 31 135791 Adapter Hose Outlet 76 160020 Hex Hd Cap Screw 32 160581 O-Ring 14-20 x 1 SST 33 135790 Piston 77 113869 Switch Bracket 34 162308 Spring Soft Serve 78 136110 Button Cover Switch 35 135792 Drain Port 79 162314 Spring 36 160611 O-Ring 80 150456 Switch Pump Safety 37 135896 Hose 24 81 135004 Switch Cover 38 160738 Hose Clamp 82 160296 Screw RH 39 136288 Keeper 6-32 x 1-14 40 160554 O-Ring 83 160146 Lockwasher 6 41 160368 Wing Nut Int Tooth 42 130054 Diaphragm Housing 84 160393 Flatwasher 6 43 199019 Diaphragm 85 160309 Hex Nut 6-32 44 196074 Air Tube-Curved 86 114572 Hose Clamp 45 163433 Air Meter - 20 87 160048 14-20 x 12 TRHM
(other sizes available) 88 160308 6-32 x 516 RDHM 89 114581 Circuit Breaker Bracket
Not Shown 90 163109 Stop Pivot 112791 DPR Pressure Gauge
41
Mfg by H C DUKE amp SON INC 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
42
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Unit does not operate 1 Fuse blown at main disconshy 1 Check fuse size check for low nect voltage if not within 10 of
nameplate rating install transformer or call power company
2 Beater motor out on overload 2 Press starter reset button and check for low voltage Check producllemperalure and overrun
3 Disconnected or broken wife 3 Check wiring and wire connecshyin electrical circuit lions repair or replace lead
wires as necessary
4 Faulty selector switch 4 Replace selector switch
5 Out on high pressure 5 Check for low waler supply or dirty air conden ser
6 Out on low pressure 6 Check limit control and freon charge
Compressor does not operate f Troubte in compressor con- I Refer to Trouble-Shootingshyor operates improperly densing circuit Compressor I Condensing
Circuit
2 Faulty capacitor assembly 2 Replace capaCitor assembly (Single phase only)
3 Faulty contactor 3 Replace contaclOr or pOints
Compressor operates but 1 Loose con neclion at motor 1 Tighten connection beater motor does not starter coil (electrical box)
2 Open starter coil 2 Replace coil
3 Faulty capacitor assembly 3 Replace capaCitor assembly (Single phase only)
Dispensed product too hard 1 Cylinder themostat erratic 1 Adjust thermo slat or replace or set too low
2 Faulty time delay relay 2 Replace time delay relay
3 Solenoid valve leaking 3 Replace solenoid valve
4 Low suction pressure 4 See chart on page 15 for adshyjustments
Leaking of mix from rear housshy 1 Damaged bealer shalt seal 1 Replace shaft seal or O-ring ing discharge tube to drip tray inside seal assy
Mig by H C DUKE amp SON INC bull 2116 Eighlh Avenue Easl Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Mix leaking at dispensing head 1 Faulty 4 O-Ring
2 Head not properly installed
1 Replace 4 O-Ring
2 Install head properly
Mix sours in cabinet 1 Cabinet thermostat setting too high
2 Cabinet thermostat detective
3 Cabinet solenoid valve deshyfective
4 Cabinet switch defective
5 Beater motor out on overshyload (cab side)
1 Adjust thermostat
2 Replace thermostat
3 Replace coil or solenoid
4 Replace cabinet switch
S Reset overload for beater motor See pg 42 unit does not operate
Cabinet too COld
Machine runs continually and Product continues to get colder
Compressor operates only when dispensing
Unit runs conMuously Product does nol reach 180 F temperature
6 Door sWitch defectIVe
1 Cabinet thermostat setting too low
2 Defective thermostat
3 Cabinet solenoid stuck open
4 Cabinet expansion valve set too low
1 Plunger switch out of adjustshyment
2 Su ction pressure too low
3 Defective plunger switch
4 Plunger switch rod engaged
5 Faulty time delay relay
6 Starter or relay contacts stuck
7 Faulty thermostat or bulb not deep enough in well
6 Replace door SWitch
1 Adjust thermostat
2 Replace thermostat
3 Replace solenoid
4 Adjust cabinet expansion valve (See pg 15)
1 Adjust plunger switch
2 Adjust expansion valve and check freon charge
3 Replace plunger switch
4 Close plunger completely
5 Replace time delay relay
I 6 Check contacts i
7 Check bulb location or replace thermostat
1 Cylinder themostat setting 1 Adjust thermostat or replace too high or thermostat deshyfective
1 Trouble in compressor I condensing system
2 ExpanSion valve setiing is too high
3 Low on refrigeranl
1 See Trouble-Shooling-CompressorI Condensing circuit
2 Adjust expansion valve
3 Check and repair leak and recharge
1
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE SLUSHbull
43
44
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Dispensed product too soft (Product temperature above 21 0 F)
1 Automatic expansion yalve incorrectly set or erratic in operation
-2 Leak in refrigeration system
resulting in little or no refrigeration
1 Adjust or replace expanSion valve
2 Pump down system or remove refrigerant charge repair leak evacuate and recharge
3 Excessive oil in system 3 Drain compressor to proper oil leyel pump down and flush system
4 Thermostat set too high taulty
or 4 Adiust thermostat or replace
Product dispenses slOWly out dispensing head
1 Reverse rotation 1 Change rotation to clockshywise from front of freezer
2 Dispensing speed adjustshyment boll too far down
2 Adjust bolt upward
3 Pum p problem 3 See pump Trouble-Shooting chart
4 Product too cold 4 See dispensed product too hard pg42
TROUBLE-SHOOTING CHART COMPRESSORICONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor will not start -hums intermittently (cycling on oyerload)
1 Improperly wired
2 Low line Yoltage
3 Open starting capacitor (single phase only)
4 High discharge pressure
1 Check wiring against diagram
2 Ask power company to increase YOltage to not less than 10 below nameplate rating or install transformer Check for inadequate wire size
3 Replace starting capacitor
4 CheCK water regulating valve setting Check water or air condenser and clean if necessary Make sure disshycharge shut-oft valve is open
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor starts but remains 1 Low line voltage 1 Ask power company to in start windings increase voltage to not less (Single phase only) than 10 below nameplate
rating or install transrormer
2 Improperly wired 2 Check wiring against drawing Check wire size
3 Running capacitor shorted 3 Check by disconnecting running capacitor
4 Starting capacitor weak 4 Check capacitor replace
5 High disCharge pressure 5 Check water regulating valve check water or air condenser and clean il necessary Check discharge shut-off valve
Starter burned out 1 Low line voltage 1 Ask power company to inshycrease voltage to not less than 10 below nameplate rating or install transformer
2 Excessive line voltage 2 Ask power company to reduce voltage to maximum of 10 over nameplate rating
Starting capacitors burn out 1 Voltage 100 low 1 Ask power company to (Single phase only) increase voltage to not less
than 10 below nameplate rating or install translonmer
2 Improper capacitor 2 Replace capacitor with properly rated capacitor as listed in manual
Running capacitors burn out 1 Excessive line voltage 1 Ask power company to reshy(Single phase only) duce line voltage to not more
than 10 above rating 01 motor
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
45
46
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Unit operates long or continuously
1 Shortage of gas
2 Dirty condenser
3 Moisture in system
4 Compressor failing
1 Repair leak and recharge
2 Clean condenser
3 Evacuate and recharge system
4 Check compressor lor proper pressures If inadequate replace compressor
Head pressure too high 1 Refrigerant overcharge
2 Air in system
3 Dirty condenser (air cooled)
4 Unit location too warm (air cooled)
5 Restricted water cooled condenser
6 Water turned off or defective
1 Purge system
2 Purge system evacuate and recharge
3 Clean condenser
4 Relocate unIt away from restriction Place nothing against back or on top of unit
5 Clean or replace condenser
6 Turn on water Or replace water regulating valve regulating valve
Head pressure too low 1 Shortage 01 refrigerant 1 Repair leak and recharge
2 Water regulating valve open 2 Adjust regulating valve too wide
Water 1I0wing through water 1 Water regulating valve 1 Replace water regulating valve waste line when unit is not in operation
defective
Noisy compressor 1 Tubing raUle 1 Bend tubes away from contact
NOTE Refer to warranty card prior to compressor replacement
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING DPR PUMP
TROUBLE PROBABLE CAUSE REMEDY
Pump will not run 1 Pump cover removed 1 Install pump cover
2 Pressure switch actuating 2 Free bulton-check spring and
bulton stuck open (in) pressure switch alignment
3 Pressure switch burned out 3 Replace pressure switch
4 Starting switch in motor bad 4 Install new starting switch
5 Motor burned out 5 Replace motor
6 Circuit breaker kicked out 6 Allow to re- set Replace it or faulty circuit breaker will not
automatically re-set
Motor runs-cam drive plate 1 Loose cam drive plate 1 Tighten set screw in cam will not turn drive plate Check woodruff key
2 Gear stripped 2 Replace gear
Pump will not shut off Mix 1 Pressure swilch actuating 1 Free button-check pressure shoots out pressure relief bulton stuck closed (out) switch alignment
2 Pressure switch stuck in 2 Replace pressure switch closed position
3 Pressure switch assy out 3 Using pressure gauge adjust of adjustment pressure
4 Dirty or plugged diaphragm 4 Disassemble and clean housing (Ref 42) housing
5 Defective O-Ring on 5 Replace O-Ring pressure relief piston
Pump will not prime 1 Insufficient supply of mix 1 Replenish mix supply
2 Piston O-ring defective-no 2 Replace piston O-Ring and suction lubricate
3 Washer valve not sealing 3 Replace washer valve DO NOT LUBRICATE
Pump primes No pressure in 1 Sleeve (Rei 29) not sealing 1 Replace sleeve DO NOT cylinder properly LUBRICATE
2 Loose hose connection on 2 Install or tighten hose clamp pump valve housing (Ref 27)
Mix shoots out Of air intake line 1 Washer valve (Ref 25) 1 Replace washer valve-DO not sealing properly NOT LUBRICATE
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOfT SERVE bull SHAKE bull SLUSH
47
48
TROUBLE-SHOOTING DPR PUMP
Too much air overrun too high-popping problems
Product dispenses slowly out of disPenSing head
1 Air meter too large (Ref 45)
2 Air leak befween mix conshytainer and mix inlet
3 Air line hose crackedshysucking air (Ref 44)
4 Pump pressure too lowshycylinder not full
1 Pump pressure too low
2 PrOduct too cold
3 Low overrun
Diaphragm housing leaking mix 1 Diaphragm housing loose
2 Diaphragm defective
Piston drive assy noisy 1 Bushing bearing worn
2 Defective gear in gear motor
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SIfAKE bull SLUSH
REMEDY
1 Replace washer valve-DO NOT LUBRICATE
2 Install clamp on hose
1 Replace O-Ring and LUBRIshyCATE
1 Clean or replace air meter
2 Replace tube
1 Install smaller air meier
2 Repair as needed
3 Replace air line hose
4 Using pressure gauge adjust pressure switch
1 Using pressure gauge adjust pump pressure
2 Check product temperatureshyshould be about 18 F
3 Check meter-if plugged-clean
1 Tighten wing nuls (Ref 41)
2 Replace diaphragm (Ref 43)
1 Replace bushing bearing (Ref 19)
2 Replace gear
TROUBLE
Mix inlet hose loses prime
Mix on top of piston
PROBABLE CAUSE
1 Washer valve (Ref 25) not sealing properly
2 Mix inlet hose loose
1 Piston O-Ring leaking (Ref 22)
No Air (Overrun) 11 Ai r meter plugged (Ref I 45)
2 Curved air tube pinched
--
DPR PUMP aI
PART NO 199019(i) PART NO 199020 reg DIAPHRAGM RUBBER SLEEVE
PART NO159295 PART NO 159282reg O-RING O-RING0
PART NO 160581reg O-RING
o PART NO PART NO
PART NO199011() 160611(8) 160582 WASHER VALVE O-RING O-RING
PISTON
cJ
DIAPHRAGM HOUSING
CYLINDER
VALVE HOUSIN6 ASSEMBLY
PUUPOUTLET
DRAIN PORT
I PHNO309-755-4553 O-RING CHART HCDUKEampSONINC I
1 I84Z08 SOFT SERVE DISPENSING HEADS I
o PART NO 1605620
PAR~159--1b
PART NO PART NO 1605841 59295()
I PHNO 309-755-4553 O-R ING CHART HCDUKEampSONINC I
- Cover
- Table of Contents
- Safety
- Uncrating amp Inspection13
- Explanation of Electrical Controls
- Operation of Machine
- General Information
- Maintenance amp Adjustment
- Parts Breakdowns
- Trouble-Shooting Charts
- O-ring Charts
-
UNCRATING AND INSPECTION When the unit is received and while the carrier is still present inspect the shipping crate for any damage which may have occurred in transit If the crate is broken or torn or punctured note the damage on the carriers freight bill and notify the carriers local agent immediately
A NOTE Be sure to properly support the machile when removing bolts and installing legs or casters
Remove the crate from the pallet and move the machine as close as possible to the permanent location Remove the shipping bolts on the bottom of the machine (figure 1) and install either the legs or casters (figure 2)
SERVICE CONNECTIONS AND ADJUSTMENTS
If your machine is located between two units of stationary equipment it is recommended that the machine be installed on casters and have flexible water and electrical connections A machine should be accessible from front rear and right side The compressor and water valve are located at the rear by removing the back panel The thermostats and expansion valve are located on the right side of the machine and can be serviced by removing the side panel Electrical controls are located al the front behind the merchanshydising sign On a double head machine the thermostats and expansion valve for the left cylinder are located behind the left side panel All materials and connections must conform to local codes andor the National Electrical Code
INSTALLATION
Your machine must be installed and serviced by an authorized service technician
Place the freezer in the proper location and level the machine This is done by adjusting the legs or casters so that the unit is level side to side and the front is approximately 14 lower than the rear to allow proper drainage from the freezing cylinder
c_ REMOVE HEX HEAD cREWS AND FLAT WASHERS
LEG SiJPPORT
PALLET
LEG~ SUPPORT
SET cREW
LEG
LEG COVER
Figure 1 MaChine bolted to Shipping Base Figure 2 Installing the Mounting Legs
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull sOFT SERVE bull SHAKE bull SLUSH
3
4
ELECTRICAL REQUIREMENTS
The phase and voltage of your machine are shown on the nameplate on the rear panel Voltage should be within plusmn10 of voltage indicated on nameplate Request local power company to correct voltage
WARNING
FAILURE TO CONNECT OR SUPPLY -PROPER VOLTAGE TO THIS FREEZER WILL VOID YOUR WARRANTY
SPECIAL NOTE On all Delta three phase circuits wild or high leg must be connected to L2 (red wire)
NOTE All machines single and 3 phase require a neutral line to complete the 115 volt circuit for the mix pump motor
ELECTRICAL CONNECTIONS
WARNING
IN ORDER TO PREVENT ACCIDENTAL ELECTRICAL SHOCK CONmiddot A NECT A POSITIVE EARTH GROUND TO THE SCREW PROVIDED IN THE CONNECTION BOX
You will find the connection box at the rear of the machine
Double CABS must be wired with two power lines Each side of these machines operates individually and separate wiring will allow service on either side without shutting down both sides
FUSES
Use dual element fuses rated at 25 over the full load amperage (FLAJ rating of the machine ReIer to the nameplate on the rear panel 01 the machine As mentioned before all double head machines should be wired and fused as individual units Use a flexible connection when permissible All materials and connections must conform to local codes and lor the National Electrical Code
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline illinOIS 61244
SUPIRIOft QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH iIIU1A
ELECTRICAL SPECIFICATIONS
REFER TO NAMEPlATE ON REAR OF FREEZER FOR ELECTRICAL SPECIFICATIONS
AIR COOLED MODELS
When installing self contained air cooled CAB models remember that the flow of air is from right to left through the upper portion of ttle machine-This means that you cannot have any obstruction on either side of the machine A minimum of six (6) inches clearance on either side is required Anything in this area will reduce the efficiency of these models
When installing all other air cooled cab models remember that the flow of air can either be from the sides through the top panel or from the rear through the top panel In each case a minimum of six (6) clearance must be maintained on either the side panels or the rear panel and the top panel must be free from obstructions Anything (including cone dispensers) in this area will reduce the efficiency of these models
WATER COOLED MODELS
Water cooled Single CAB models will require a 38 MPT water inlet and water waste connection
Water cooled Double CAB models will require a 12 MPT water inlet and water waste connection Both units are tied together so that one water inlet and one water waste is all that is required
All water connections are found on the bottom under the compressor mounting area and are clearly tagged-HWater Inlet and Water Waste It is suggested that a manual shut off valve be installed in the water inlet line at the time of installation
WARNING
DISCONNECT MAIN POWER SUPPLY AND WATER SUPPLY BEFORE BLOWING WATER OUT OF THE CONDENSER
CAUTION ALL WATER COOLED MODELS MUST HAVE CONDENSERS BLOWN OUT IF EXPOSED TO BELOW FREEZING TEMPERATURES AIR PRESSURE OF AT LEAST 20 LBS SHOULD BE PUT THROUGH THE WATER LINES STARTING INSIDE THE WATER VALVE IT IS RECOMMENDED THAT A QUALIFIED REFRIGERATION TECHNICIAN DO THIS
NOTE The water waste connection should be checked periodically to ensure water is not running when the freezer is not in operation
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
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-1f2 MPT WAiER
- Y2 MPT WATfR OUT (WATER C(X)lED UNITS otaX)
ALL CONNECTIONS ARE MADE THROuWi eOTTOtt OF FREEZER
EXPLANATION OF ELECTRICAL CONTROLS SOFT SERVE CAB ELECTRICAL CONTROLS
The fotrowing is an explanation of each switch across the front of the machine
PUSH TO RESETmiddot Your machine is equipped with an electrical overload system so the beater motor is protected against burn out if your machine is stopped by the overload it will be necessary to push the reset button before it will start again If this happens frequently your machine should be checked for proper voltage or any unusual cause of strain on the beater motor
SELECTOR SWITCHmiddot This is a three position switch that controls the following operations
CLEANOUT (to the left) operates the beater motor only This position should be used in all cleaning and sanitizing operations OFF (Center Position) turns off the cylinder refrigeration and the beater motor AUTOMATIC (to the right) activates the cylinder refrigeration the beater motor and refrigeration to cabinet This is the normal operating position for both day and night operation
MIX PUMP SWITCH bull Controls the DPR pump located in the refrigerated mix storage cabinet Turn this switch to the left ON position for operation and to the right OFF position for disassembling cleaning and night operation
THERMOSTAT SWITCHmiddot Controls the day and night refrigeration cycles The DAY position to the left activates the low temperature refrigeration system and allows the beater motor to operate The NIGHT poSition to the right switches the refrigeration system to a medium temperature holding cycle
CABINET SWITCH bull Controls the cabinet refrigeration The cabinet refrigeration is on when the switch is turned to the left and off when turned to the right Cabinet is automatically on when the selector switch is in the AUTO position
TIMERmiddot is a quick freeze switch Turning the timer will bypass the thermostat forcing the compressor and beater motor to operate The timer can be used for quick start ups in the morning or for fast recovery when large portions are dispensed
CAUTION EXCESSIVE USE OF THE TIMER CAN CAUSE YOUR MACHINE TO FREEZE UP USE ONLY WHEN NECESSARY
RED PILOT LIGHT
When this light is on it is an indication that the compressor is running This can only be on when the Selector Switch is in the AUTO position This light should never be on when anything but approved product is in the freezer (never on when water sanitizer or milkstone remover is in the freezer)
AMBER PILOT LIGHT
When this light is on the agitator drive motor is running This may be on when the Selector Switch is in the CLEAN or AUTO position Whenever the red pilot light is on the amber should also be on
DIAL THERMOMETER
This is an indication of the approximate temperature of the evaporator It should be viewed as an indication of how well the freezer is operating Once familiar with the normal operating measurement (usually between 5 and 15 deg) it is easier to detect unusual or abnormal functions of the freezer Observation of the thermostat often during each day 01 operation is a goOd habit for all operators This is not a measurement of prOduct temperature
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline lInol5 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SWSH PrioMd Ull II
6
CAUTION SWITCHES 1 2 and 4 DO NOT SHUT OFF THE SUPPLY OF POWER TO THE MACHINE THIS ONLY PREVENTS THE CONTROLS FROM OPERATING IF ANY
A ELECTRICAL REPAIRS ARE REQUIRED DISCONNECT THE MAIN POWER SUPPLY TO THE MACHINE AT THE CONTROL PANEL OR FUSE PANEL
PLUNGER SWITCHmiddot This switch only works in the day mode when the selector switch is in the AUTO position When the dispensing handle is pulled down the plunger switch rod raises and engages the plunger switch to turn on the beater motor and compressor The plunger switch activates the time delay and overrides the thermostat When the dispensing plunger is returned to the closed position the machine will continue to run for 12 seconds on the time delay and will then turn off unless the termostat requires additional refrigeration
DISPENSING SPEED ADJUSTMENT
WARNING
A MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFF POSImiddot TION AND THAT THE MAIN POWER SUPPLY IS DISCONNECTED
All soft serve machines have a dispensing speed adjustment To make this adjustment it is necessary to remove the merchandiser and cover from in front of the electrical box Upon removal of this panel you will see the plunger switch mounting bracket (see page 26) At the top of this bracket is the adjusting screw After loosening the lock nut adjust the screw as required The further down you turn this screw the slower the product will come out If you do this with patience you can adjust the machine to the point where the unit cannot be outdrawn (turn to a product that is too soft)
CAUTION ADJUSTING THE SCREW TOO FAR DOWN CAN CAUSE THE MACHINE TO FREEZE UP
TEST OF INSTALLATION
Remove the dispensing head and beater shaft (See Washing Instructions) so that the unit can be tested Turn on the pump switch (pump cover must be in place) to insure that the pump is running turn switch off Turn the following switches on in this order (1) Thermostat switch DAY (2) Cabinet Switch ON and (3) selector switch AUTOMATIC Let the unit run and at this pOint check beater rotation (clockwise from front) frost line in cylinder (front to back) and cabinet refrigeration Allow the unit to run until it shuts of automatically Should you have a short cycle (machine turns on then off every 10 or 15 seconds) check the water inlet manual valve Insufficient supply of water to the machine will give you this short cycle After the machine turns off automatically turn the selector and cabinet refrigeration switch OFF Cabinet refrigeration system will not operate when cabinet door is open
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Molme illinOIS 61244
SUPERIOR QUALIlY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
OPERATION OF MACHINE DISASSEMBLY AND WASHING
Your Soft Serve machine has been completely tested at the factory It is important that the machine be dismantled washed and lubricated before operation
CAUTION ALL CONTROL SWITCHES MUST BE IN THE OFF POSITION AND THE MAIN POWER SUPPLY DISCONNECTED FOR DISASSEMBLY AND REASSEMBLY BE SURE THE MACHINE IS DEPRESSURIZED BEFORE PROCEEDING (See page 13)
Refer to pages 37 38 and 39
Remove the plunger switch rod by lifting this rod up and swinging the bottom portion out and then pulling down Place the plunger switch rod on the drip tray Remove the two hand knobs and pull the head assembly straight out You will find that this is tight as there is an a-ring on this head Remove lever pin pull out handle and plunger
Remove cylinder bushing and pull out the beater shaft holding the knives as you do so Remove rear seal from shaft Take the head and beater shaft assemblies to the washing area Wash all parts thoroughly in a warm detergent solution and then rinse Wash the drain tube and cylinder using the brushes supplied
NOTE Do not dry any parts - reassemble them wet or allow to air dry
NOTE All O-rings must be removed in order to properly wash parts
Remove the DPR Pump from the cabinet in the bottom of the freezer Details on this are given in the pump section of this manual on pages 9-10 following
LUBRICATION AND REASSEMBLY
NOTE We recommend using Petrol Gel or equivalent
Lubricate the a-ring inside the rear seal Place it on the shaft so cup side will be against back of freezing cylinder DO NOT LUBRIGA TE THE GRAY RUBBER SEAL This seal is held under tension against the back of the cylinder when the beater and door are in place The cup seal remains stationary while the shaft turns freely in the plastic bushing Place both blades on the beater shaft and slide the beater into the cylinder Make sure the blades are installed properly The portion of the blade containing 2 knobs should face away from the cylinder walls When inserting the beater place the rear blade on the bottom of the cylinder This will center the beater and allow alignment with the drive coupling Push the beater shaft in and rotate until beater is engaged in the drive coupling The front of the beater shaft when engaged in coupling should be about 12 inside the cylinder Lubricate the inside surface of the cylinder bushing and install in cylinder
CAUTION ALWAYS MAKE SURE THAT THE BEATER BUSHING IS ON THE FRONT OF THE BEATER SHAFT OPERATION WITH A MISSING OR BADLY WORN BEATER BUSHING WILL DAMAGE THE BEATER AND CYLINDER
Lubricate the a-rings on the dispensing plunger and insert the plunger half way into the head Insert the plunger handle and lock in place with the lever pin Lubricate the 4 a-ring and slide the head assembly over the two cylinder studs Replace the two hand knobs and tighten the head on the cylinder DO NOT overtighten the knobs If leakage occurs check the 4 a-ring Replace the plunger switch rod
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALllY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
9
10
DPR PUMP OPERATION AND MAINTENANCE A CAUTION ALL CONTROL SWITCHES MUST BE IN THE OFF POSITION AND THE MAIN POWER SUPPLY DISCONNECTED FOR DISASSEMBLY AND REASSEMBLY
DISASSEMBLY
Step 1 - Reference DPR pump breakdown pages 40 and 41 for assistance in identificashytion of pump parts and their associated reference numbers If the pump has been in operation be sure that it is depressurized before proceeding to step 2
Step 2 - Remove attached mix hoses and pump cover (Ref 46)
Step 3 - loosen the thumb screw (Ref 18) and swing away the clamp (Ref 16) Carefully remove the entire pump assembly from the pump support (Ref 2)
Step 4 - Remove wing nuts diaphragm housing and diaphragm (Ref 41 42 and 43)
Step 5 - Further disassemble the pump by removing the piston assembly including the piston connecting rod and wrist pin (Ref 20 21 and 23) Separate the wrist pin and connecting rod from the piston Remove the curved air tube air meter outlet hose adapter and cylinder (Ref 24 31 44 and 45) from the valve housing assembly (Ref 27)
Step 6 - Grasp the outlet hose adapter asembly (Ref 31) and remove the keeper (Ref 39) while pressing inward on the drain port (Ref 35) Carefully lift and remove retainer clip (Ref 30) Caution must be exercised when removing the retainer clip as the relief mechanism parts (Ref 33 34 and 35) are spring loaded Remove the piston spring and drain port
Step 7 - Remove all a-rings rubber sleeve (Ref 29) and washer valve (Ref 25) All parts disassembled in steps 2 through 7 should be washed thoroughly in a solution of mild detergent and water not exceeding 120deg F Rinse all parts
NOTE All O-rings must be removed in order to properly wash parts
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Mohne illinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
LUBRICATION AND REASSEMBLY
Reassemble by reversing the steps on page 10 and lubricate as follows
When replacing the flat rubber washer (Ref 25) DO NOT LUBRICATE Important -This rubber washer acts as the air and mix check valve and must lie flat against the top of the pump valve housing Install it over the mushroom cap and move it around to make sure that it is sealed Ins~n the sleeve (Ref 29) Like the washer valve this should not be lubricated and fits on the pump valve housing with the tapper to the bottom
All the O-rings on the pump should be lubricated lightly The O-ring on the piston (Ref 21) should be lubricated liberally as this is the major wearing O-ring and must provide a good seal
Install the O-ring and spring on the piston (Ref 33) Lightly lubricate the O-ring (only enough to make it shiny) Install the piston with the O-ring end in first Lubricate the O-ring on the drain port and install it in the adapter Push in on the drain port and slide the clamp over the top to lock it in place Place the keeper (Ref 39) over the exposed end of the drain port and install the hose and clamp on the drain port Install the pressure switch diaphragm in the diaphragm housing
The pressure switch diaphragm (Ref 43) requires no lubrication
Install the diaphragm housing and diaphragm on the two studs and tighten wing nuts hand tight Install the pump assembly on the bracket-drive assembly in the refrigerated cabinet The shoulder of the white bushing (Ref 19) faces the drive cam (Ref 13) when slid into place properly Be sure to insert the mix output body (Ref 31) over the diaphragm housing (Ref 42) Return swing and adjusting clamp to closed position and tighten thumb screw Replace mix hoses and tighten all hose clamps
NOTE The pump will not operate without the cover (Ref 46) in place
WARNING
MAKE SURE ALL HOSE CONNECTIONS AND THE SWING A CLAMP ARE TIGHT BEFORE PRESSURIZING MACHINE THIS SYSTEM PRODUCES 30-32 PSI DURING NORMAL OPERATION
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MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH PrIntId USA
12
SANITIZING INSTRUCTIONS
The washing and sanitizing instructions explained in this manual are required to maintain a clean sanitary machine Your Soft Serve machine should be disassembled cleaned and sanitized to insure the best possible product and machine operation
Prepare a solution of sanitizing water (for each barrel) in a 2-3 gallon container (Solution should be 200 PPM chlorine using Diversol or equivalent) Place the container in the refrigerated cabinet and insert the mix inlet hoSe or stainless steel mix tube in the sanitizer Turn the pump switch ON (located at front of machine) and allow the pump to build up pressure and shut off automatically Turn the selector switch to the CLEAN OUT position and allow the beater to run for 5 minutes This insures the sanitizing solution touching all of the internal parts Placing a container under the dispensing head release the solution from the cylinder by depressing the dispensing handle Do this slowly as the cylinder is under 30 pounds pressure HINT Remove serrated nozzle (Ref 2) for this operation Sanitize nozzle and install when mix is ready to be dispensed Leave the dispensing handle down until the pump has forced all or most all of the solution through the machine When completed turn the selector switch and pump switch OFF You are now ready to start your freezer
You are working with a pressurized machine Always check for possible leaks when sanitizing your machine A leak around the head is obvious and usually calls for the replacement of the dispensing head O-rings A leak in the shaft seal will flow out of the drain tube just below the dispensing head This usually requires the replacement of the shaft seal or shaft seal O-ring Any leakage in the pump would require that the O-ring be replaced at the point of leakage
NOTE Sanitizing is always done prior to starting the machine Never sanitize the day belore and let the machine sit overnight
START UP INSTRUCTIONS
After sanitizing immediately fitl the container with mix Place the mix inlet hose or stainless steel mix tube in the container of mix (If you are using a plastic bag container supshyplied by the dairy it is recommended that you notch the plastic hose or use a perforated mix can tube so that the bag cannot be drawn into the mix inlet restricting the flow of mix If not careful a hole can be made in the bag) Sanitizer will remain in the pump mix hose and cylinder Turn the pump switch on starting the pump and depress the dispensing handle opening the dispensing plunger Leave the dispensing plunger open until you receive
pure mix at the nozzle The mix will push the remaining sanitizer out of the machine if the plunger is left open Close the plunger after removing all remaining sanitizer (See page 20)
After the cylinder is pressurized and the pump has shut off place the selector switch in the AUTOMATIC position At this pOint make sure the cabinet switch is at the ON position and the thermostat switch is at the DAY position Allow the machine to cycle and freeze down Normally several refrigeration cycles will be needed before a frozen product can be dispensed
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
It is impossible to start the freezer and not have excess air in the cylinder Since you have air in the cylinder and the pump is also adding air to the mix on first start up you will have air pockets in the cylinder These pockets can be eliminated if after two or three cycles you will turn the selector switch to the OFF position Pump switch must be at ON position With the selector switch off slowly open the dispensing plunger and bleed off the excess air until liquid mix comes out the dispensing head Close dispensing handle allow the cylinder to fill and turn selector switch to AUTOMATIC At least 30 minutes cycling time should be allowed to insure a ready produ~l
CLEANING PROCEDURE - DRAINING MACHINE
Place selector switch on the front of the machine to CLEAN OUT and let the beater run for about five minutes This will allow the product in the cylinder to soften up Place a clean sanitized container under the dispensing nozzle and very slowly draw off the semishyfrozen cream until liquid mix appears at the nozzle Remove the stainless steel mix tube or mix hose from the mix container Leave the dispensing plunger open until all the mix has run out of the cylinder and place the container in the cooler for storage Place the mix inlet hose in a container of cold water allow the cylinder to pressurize and flush the machine with the selector switch on CLEAN OUT Follow with a container of warm water until machine is rinsed clean Place the selector switch and pump to OFF Refer to disassembly instructions (Ref page 9)
WARNING
YOUR SOFT SERVE MACHINE OPERATES ON 30-32 POUNDS PRESmiddot A SURE NEVER DISMANTLE ANY PART OF THE MACHINE UNLESS THE MACHINE HAS BEEN DEPRESSURIZED THE SELECTOR
SWITCH IS IN THE OFF POSITION AND THE MAIN POWER SUPPLY HAS BEEN DISCONNECTED DEPRESSURIZE THE CYLINDER BY OPENING THE SPIGOT WITH THE PUMP SWITCH IN THE OFF POSITION
CLEANING MIX HOSE
The CAB models use the DPR mix pump You must disconnect the mix hoses and clean them thoroughly USing a long handle brush and a suitable cleanersanitizer you must brush the interior of the mix hose to insure there is no build up of product on the walls of the hose Water temperature for this cleaning process should be 1800 F to meet some health codes After reassembly pump sanitizer through the hoses
Mfg by H C DUKE amp SON INC 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
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GENERAL INFORMATION OVERRUN ADJUSTMENT
The overrun on your CAB machine equipped with a DPR pump is regulated by the air meter (Item 45-pump parts breakdown) You are supplied with three air metering plugs each containing a different size orifice The smaller the hole the lower the overrun The larger the hole the higher the overrun The orifice or hole in this air meter must be open at all times It is the only source of air into the freezing cylinder Check this daily
The mix will be a determining factor as to the amount of overrun you will be able to achieve Some mixes will accept more air than others thus regulating the size of air meter you can use Test to see which air meter will give you the best overrun and the best tasting shake Run each air meter for one day until you make the determination You may have a slightly higher overrun when you first start up the machine When the machine has run long enough to dispense at least one full cylinder of product you will have the overrun that the machine wil hold the remainder of the day
ADJUSTING PUMP PRESSURE
Only to be performed by a qualified service technician
A WARNING
DISCONNECT MAIN POWER SUPPLY BEFORE REMOVING PANELS
NOTE The pump will not operate without the cover in place
The DPR Pump is controlled by pressure in the mix line acting on the diaphragm (Ref 43) As the pump fills the freezer cylinder with mix pressure builds causing the diaphragm to expand As the diaphragm expands it contacts the button (Ref 51) which in turn depresses the pump pressure switch (Ref 60) The pressure switch button moves inward until the switch is opened turning off the pump motor When product is drawn from the freezer the diaphragm closes the pump pressure switch allowing the pump motor to restart Pump pressure will check the same with air mix or water We suggest the pressure be checked with air pressure only
Step 1 - Remove the rear panel from machine and the pump electrical box cover (Ref 6)
Step 2 - Locate the pressure adjusting nut (Ref 59) Turn the adjusting nut clockwise to increase pressure or counterclockwise to decrease pressure Usually one half turn of the adjusting nut will raise or lower the pressure of the model DPR pump two (2) PSIG
Step 3 - Install a quality pressure gauge in the mix output line Turn main power supply and pump switch to ON pOSition Caution Electrical power present through entire machine Allow the pump to pressurize until it shuts off automatically Observe the gauge pressure reading and disconnect main power supply Repeat the adjustment steps 1 through 3 until the proper pressure is obtained (30 to 32 PSIG) Reinstall the electrical box cover and rear panel
NOTE Pressure tine must be at least 6 fI long in order to obtain an accurate reading
A Pressure Gauge PIN 112791 may be purchased from your local distributor
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
PRESSURE RELIEF ASSEMBLY
The model DPR Pump incorporates a self contained safety pressure relief system The parts included in this assembly are (Ref 30 through 39) Any discharge of mix through the hose (Ref 37) is an indication of excessive pump pressure For corrective action refer to the trouble shooting section of this manual
REFRIGERATION SETTINGS
A WARNING
DISCONNECT MAIN POWER SUPPLY BEFORE REMOVING PANELS
The CAB Soft Serve machine contains two types of temperature control devices the expansion valve and the thermostat (explained in Thermostat Section) The expansion valve meters the flow of refrigerant to the cylinder and must be set correctly to give you maximum production
To locate the expansion valve remove the side panel On the single head CAB machines remove the right side panel The double head machines will have an expansion valve behind both right and left side panels
The expansion valve should only be adjusted by a refrigeration technician with refrigeration test gauges connected to the compressor Adjustments to the valve are shown in the following chart
REFRIGERATION SETTINGS MODEL TYPE OF COOUNG WATER AIR 917CAB 927CAB 957iAa I
Cyl Suction Pressure Rmiddot502 15middot17 (PSIG) 15-17 (PSIG)
9711CAS Cyl Suction Pressure R-502 15middot17 (PSIG) 15middot17 (PSIG)
ALL SOFT SERVE
CABS
Cab Suction Pressure Rmiddot502 Head Pressure Thermostat Differential
8middot10 (PSIG) 230-240 (PSIG)
17degmiddot22deg 7deg~8c
8-10 (PSIG) 230middot315 (PSIG)
17deg_22deg 7c -8deg
NOTE To correctly set the cylinder expansion valve the cabinet thermostat switch An must be in the OFF position (Full counterclockwise) with the compressor running
NOTE To correctly set the cabinet expansion valve the selector switch must be in the OFF position and the cabinet switch in the ON position (With the compressor running)
A refrigeration test gauge must be used when adjusting the suction pressure To reduce the suction pressure turn the adjustment screw on the expansion valve counterclockwise Do not turn more than 14 turn at a time Let the unit operate a sufficient length of time - at least two minutes - to properly read on the gauge the adjustment made
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline illinOIS 61244
SUPERIOR QUAUTY FREEZERS bull SOFt SERVE bull SHAKE bull SLUSH
15
16
THERMOSTATS
A WARNING
DISCONNECT MAIN POWER SUPPLY BEFORE REMOVING PANELS
Thermostat Au is the cabinet refrigeration thermostat The cabinet thermostat operates off of both the day and night switch operation to maintain 44 0 F or lower in the mix storage cabinet This thermostat can be adjusted by rotating the adjustment knob To set this thermostat colder turn the adjustment knob clockwise
CYLINDER THERMOSTAT
The cylinder thermostat is located behind the right side panel (on single head CABs) faCing the front of the machine On the double head CABs like the expansion valve a cylinder thermostat is located behind both the right and left side panels This control has two settings The first is the differential which should be set on 7-8deg F The other side of the control marked HIGH EVENT should be set between 17-220 F
The purpose of the cylinder thermostat is to maintain an 18deg F product during idle periods If the thermostat is set too cold and product is not drawn out of the machine a freeze up condition will result DO NOT run the product below 17deg F
NOTE The settings on the thermostat are ONLY to be used as a guide
For a correct adjustment a thermometer must be used to check the actual product temperature Each thermostat should be set in the field for the product being used Most of the time a temperature setting of between 18deg and 19deg F will maintain a satisfactory product Once the thermostat is set for the mix used it should require no further adjustment
MIg by H C DUKE amp SON INC 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH P~IIIIUSA
THERMOSTAT_________ Turn knob clockwise to make product colder
Differential adjustment
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1 7 OFF
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THIS ASSEMBLY USED ON LEFT SIDE OF UNIT
RIGHT SIDE USES THIS ASSEMBLY WIO THERMOSTAT A (CAB THERMOSTAT)
MIg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
17
18
MAINTENANCE AND ADJUSTMENT
ONLY TO BE PERFORMED BY A QUALIFIED SERVICE TECHNICIAN
WARNING
MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFF POSITION AND THAT THE MAIN POWER SUPPLY IS DISCONNECTED BEFORE REMOVING PANELS
LUBRICATION INSTRUCTIONS
FAN MOTOR (Air Condenser) Lubricate annually with SAE 10 motor oil in the oil cups
CAUTION DO NOT OVER-LUBRICATE OVER-LUBRICATION CAN DAMAGE MOTOR
GEAR REDUCER The gear reducers are heavy duty worm-geared units manufactured to HC Duke specifications II traces 01 oil are found in the immediate area around the reducer repair the leak (usually an oil seal) and check the oil level When adding oil use only synthetic gear lube in the reducer
NOTE This is a special oil and will not mix with a petroleum base oil Contact your distributor when this oil is needed This oil should be changed at least once a year
OIL LEVEL PLUG
PROPER OIL LEVEL
OIL DRAIN USE SPECIAl PLUG OIL ONLY
USE SPECIAL LOILON=LY-- I
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH ~1U8A
MAINTENANCE AND ADJUSTMENT ONLY TO BE PERFORMED BY A QUALIFIED SERVICE TECHNICIAN
WARNING
MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFFA POSITION AND THAT THE MAIN POWER SUPPLY IS DISCONNECTED BEFORE REMOVING PANELS shy
BEATER MOTOR Beater motors are either single or three phase Capacitor starting is used on the single phase units The beater motor should be inspected and cleaned
WATER COOLED CONDENSER Depending on the condition of your water the condenser on your CAB machine may require cleaning from time to time Usually a restricted flow of water resulting in a high head pressure indicates a dirty condenser The condenser should be flushed out with an acid solution by a qualified service technician
AIR COOLED CONDENSERS At least once a month the face area of the condenser should be inspected for accumulation of dirt and dust Surface dust and dirt can usually be removed with a stiff brush andor vacuum cleaner After brushing hold a light between the fan blades and look through the condenser from the opposite side This procedure will locate those areas where accumulated dirt has lodged between the condenser fins To clean these areas obtain a small tank of nitrogen or C02 with a needle control valve or pressure regulator with a small hose attached and proceed as follows
(1) Place a damp towel or cloth over the face area of the condenser
(2) Open the control valve or regulator on the tank releasing pressure to the coil from the back side cleaning the condenser
(3) Check the condenser periodically with the light and continue the treatment until the fins are clean
For maximum performance replace all worn O-Rings Seals Blades etc
CAUTION USE ORIGINAL OR AUTHORIZED REPLACEMENT PARTS ONLY WITH THIS FREEZER
Mig by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline illinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
19
20
PULLEY ALIGNMENT AND BELT TENSION ONLY TO BE PERFORMED BY A QUALIFIED SERVICE TECHNICIAN
WARNING
A MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFF POSITION AND THAT THE MAIN POWER SUPPLY IS DISCONNECTED
Remove the side panels to expose the pulleys and belts
Check the alignment of the beater motor pulley and gear reducer pulley by placing a straight edge across the faces of the two pulleys If the pulleys are not aligned adjust as necessary until proper alignment is obtained
Depress the belts with a finger at a point midway between the two pulleys When properly adjusted the belts should depress 12 from its normal position with approximately 5 pounds of pressure If the belts are too tight or too loose adjust as necessary until proper belt deflection is obtained Loosen four (4) bolts which hold the motor mounting plate to the frame With these loose adjust tension bolt in or out as required to obtain proper belt tension Retighten bolts
BELTS
Periodically inspect the belts If they are worn excessively replace both belts For best results it is advisable to replace both belts as they are manufactured in matched sets
SCRAPER BLADES
NOTE Be sure to purge all of the sanitizer from the mix system before operating the freezer (see page 12) Failure to completely remove sanitizer or water trom the freezing cylinder before placing the machine in the Automatic position may cause blade breakage and damage the freezer
o o
NEW BlADE WORN BLADE
Replace blades if worn 316 or more
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
END PLAY FOR BEATER DRIVE COUPLING
It is very important that the drive coupling located on the gear reducer be set properly Referring to the Drive Coupling Illustration the following procedure should be followed in setting the end play
WARNING
MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFF POSITION AND THAT THE ELECTRICAL POWER TO THE MACHINE IS DISCONNECTED SO THAT THE UNIT WILL NOT OPERATE
------
DRIVE COUPLING ILLUSTRATION
REF DESCRIPTION REF DESCRIPTION 1 Gear Reducer 6 Reducer Mounting Plate 2 Beater Shaft 7 Set Screws 3 Shaft Seal 8 Bolt Gear Reducer 4 Drive Coupling 9 Bolt Reducer Mounting Plate 5 Spacer 10 Key
11 Output Shaft
Improper drive coupling spacing will damage the beater shaft dispensing head and drive coupling When checking end play settings or replacing a coupling proceed as follows
REMOVING COUPLING
WARNING
DISCONNECT MAIN POWER SUPPLY
Mig by H C DUKE amp SON INC bull 2116 Eighth Allenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SO SERVE bull SHAKE bull SLUSH
21
22
(1) Remove Beater Shaft (Ref 2)
(2) Remove both drive belts (not shown)
(3) Remove gear reducer bolts (Ref 8) Six (6) bolts are located around the face of the reducer
NOTE Remove the top bolt last holding the bottom of the reducer as you do so
(4) Remove the gear reducer (Ref 1) and place-on table or bench
(5) Replace two (2) bolts (Ref 8) one (1) at the top and one (1) at the bottom so that the reducer cover will not come off while the coupling is changed
(6) Loosen the four (4) set screws (Ref 7) and remove the drive coupling (Ref 4) Should the coupling be stuck tight to the ouput shaft lightly tap the coupling from the back with a hammer and bar Sometimes due to age this coupling will stick so tight it will have to be removed with a pulley removing tool or a wheel puller
(7) Remove the key (Ref 10)
INSTALLING THE NEW COUPLING
(1) Clean gear reducer output shaft (Ref 11) with fine emery cloth and slide the new drive coupling on the reducer shaft The coupling should slide on the shaft all the way without the key If the coupling doesnt slide completely on check both coupling and reducer shaft for burrs When a smooth sliding fit is achieved remove coupling and proceed with final assembly
(2) Place key (Ref 10) in keyway slot on the reducer output shaft Keep the key flush with the front end of the output shaft (Ref 11)
(3) Slide the coupling (Ref 4) on the output shaft until it bottoms out on the shaft Leave the four (4) set screws loose as the coupling will have to be adjusted
(4) Remove the two (2) bolts added in preceding Step 5
(5) Place one (1) gear reducer bolt (Ref 8) in the top hole of the cylinder mounting plate
(6) Insert gear reducer into cylinder mounting plate and start top bolt (Ref 8) Do nol tighten completely Now insert the other bolts one at a time When all bolts are in tighten each boll
NOTE Due to very close tolerance between the gear reducer and cylinder mounting plate no alignment is required when Installing the reducer When the reducer bolts are tightened the reducer will seH-align with the cylinder
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
(7) Insert the beater shaft (Ref 2) with the shaft seal and blades into the cylinder and engage beater shaft in the drive coupling Place bushing on front of beater shaft
(8) Tape a dime (10 cents) to the back of the dispensing head in the very center at the point where the beater shaft touches the dispensing head The dime is used to acquire the proper end play setting on the drive coupling which is approximately 332
(9) Place the dispensing head into the cylinder and tighten with the hand knobs Important make sure hand knobs are tight and head is against the end of the cylinder tube
(10) Slide the drive coupling (Ref 4) forward until it is tight against the beater shaft and lock into place the four (4) set screws (Ref n
(11) Remove the dime from the back of the dispensing head
(12) Replace the drive belts
(13) Turn on electrical power
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
23
PANEL BREAKDOWN - 917CAB
~--~
3
REF PART No 1A 114544 1B 112991 2A 136075 2B 136102
3A 137027 3A 137028
3A 136105 3B 136103
3B 134817 4 134818
4 136101 5A 114780
5A 113570 5B 112967
6 112960 7 133291
24 A 917CAB only
I
dJ
DESCRIPTION Frame ssmiddoty Frame ASsmiddoty Lower Side Panel Lower Side Panel LH Side Panel RH Side Panel Upper Side Panel Upper Side Panel Upper Side Panel Rear Panel Rear Panel Top Cover ASsmiddoty Top Cover ASsmiddoty Top Cover ASsmiddoty Filler Panel ASsmiddoty Top Filler Strip
B bull 44 CAB only
~
[At 16 lt0
REF 8
9 10 11 12 12A 13
14 15 16 16A
Air Cooled only
PART No DESCRIPTION 132687 Dispense Panel 134247-01 Dispense Panel Cab-W
Drip Tray (See Pg 35) 114260-01 Door Assmiddoty wIHinges 132444-01 Left Hand Filler Strip 162045 Upper Hinge 162052 Spring LH 162046 Lower Hinge 160026 Screw 160020 Bolt 160139 Washer 110205 Syrup Jar Enclosure 160563-01 Door Gasket 01-Groove) 159174 Drip Tray Button 160293 Clip for Button
Water Cooled only
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
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REF PART No DESCRIPTION REF PART No DESCRIPTION 1 114538 Frame Assy 10 162045 bull Upper Hinge 2 136289 Side Panel LH lOA 162052 Spring LH 3 136313 Rear Panel 11 162046 Lower Hinge 4 114006 Top Panel AC llA 160026 Screw 4A 114428 Top Panel WC l1B 160020 Bolt 4B 114157 Top Panel AC Remote l1C 160139 Washer 5 113983 Front Panel Assy 927CAB 12 136216 Side Panel RH 5A 113985 Front Panel Assy 957cAB 13 160563 Door Gasket (V-Groove) 6 130021 Rear Corner Channel RH 14 159174 Drip Tray Button 6A 135254 Rear Corner Channel LH 14A 160293 Clip for Button 7 137228 Dispensing Panel 162108 Stop Pin (Screw In) 8 Drip Tray (See Pg 35) 136199 Door Pull 9 114260 Door Assy wHinges
25
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
SOFT SERVE CAB ELECTRICAL BOX
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 Contactor (Order By Freezer 5 150463 Selector Switch
Serial Number) 6 159235 Toggle Switch (Pump) 2 Overload (Order By Freezer 7 150456 Spigot Switch
Serial Number) 7A 136124 Button - Spigot Switch 2A Heater Coil (Order By Freezer 7B 162302 Spring - Spigot Switch
Serial Number) 8 150553 Pilot Light - Amber 3 Starter (Order By Freezer 9 150552 Pilot Light - Red
Serial Number) 10 161026 Thermometer (Not Shown) 4 150208 Timer
26
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Pointed u
- - --- -
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prifllcl If USA
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SOFT-SERVE - SINGLE HEAD CAB
REF PART No 1 151351
2 3 4 5 6 151044
151052 7
8 155039 9 155400 10 155117
11 151084
12A 159021 13 155401 13A 155423 14 155403 15 155422
16 154976 16 154975 17 159203 18 155051 19 112901
155410 20 155044
151348
DESCRIPTION Capacitor Relay Assembly (single phase)
150247 Start Capacitor
150249 Run Capacitor 150245 Relay Motor Capacitors (order by freezer serial no) Gear Reducer (see gear reducer breakdown page 36) Driven Pulley (order by freezer serial no) Belt (order by freezer serial no) Motor 1-phase 230 volt Motor 3-phase 208230 volt Driver Pulley (order by freezer serial no)
Water Condenser Automatic Expansion Valve (Cylinder) Air Condenser
Condenser Fan Motor
Condenser Fan Blade High Pressure Cut-Out shyHigh Pressure Cut-Out shyLow Pressure Cut-Out Solenoid Valve
Compressor 230160
AC WC
Compressor 208-230360 Sight Glass Drier (38) Receiver Tank Assembly Water Valve (not shown) Service Valve Compressor Mounting Kit
Note I) lt0 For All 50-Cycle Freezers Order By Freezer Serial Number
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Printad I usA
30
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SOFT-SERVE - DOUBLE CAB - WATER COOLED REF PART No DESCRIPTION 1 155026 Water Condenser (B-side) 1 A 155039 Water Condenser (A-side) 2 159203 Sight Glass 3 155051 Drier (38) 4 155400 Automatic Expansion Valve (Cylinder) 5 Gear Reducer (see gear reducer breakdown page 36) 6 155410 Water Valve 7 155423 High Pressure Cut-Out 8 155403 Low Pressure Cut-Out 9 154976 Compressor 230160
151351 Capacitor Relay Assembly (Single Phase) 150247 Start Capacitor 150249 Run Capacitor 150245 Relay
9A 154975 Compressor 208-230360~-11 NOT USED ON THIS MODEL 12 155442 Low Temp Control 13 Driven Pulley (order by freezer serial no) 14 Belt (order by freezer serial no) 15 Driver Pulley (order by freezer serial no) 16 155422 Solenoid Valve 17 151044 Motor 1 phase 230 volt 17A 151052 Motor 3 phase 208230 volt 18 Motor Capacitors single phase only (order by freezer serial no)
Note For All 50-Cycle Freezers Order By Freezer Serial Number
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Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH _InU5A
32
c W J o o o -a oCt
aI oCt o W I m ) o c w gta w Ch t--LL o Ch
SOFTmiddotSERVE bull DOUBLE CAB - AIR COOLED REF PART No 1 155120 2 159020 3 151080 4 155400 5 6 159203 7 155051 8 112901 9 151044 9A 151052 10 11 12 14 154976
14A 154975 15 155401 16 155403 17 155443 18 155442 19
21 155422
DESCRIPTION Condenser Fan Blade Fan Motor Automatic Expansion Valve (Cylinder) Reducer (see gear reducer breakdown page 36) Sight Glass Drier Receiver Assembly Motor 1-Phase 230 Volt Motor 3-Phase 208230 Volt Driven Pulley (order by freezer serial no) Belt (ordr by freezer serial no) Driver Pulley (order by freezer serial no) Compressor 230160 151351 Capacitor Relay Assembly (Single Phase)
150247 Start Capacitor 150249 Run Capacitor 150245 Relay
Compressor 208-230360 High Pressure Cut-Out Low Pressure Cut-Out Cabinet Thermostat Low Temp Thermostat NOT USED ON THIS MODEL Motor Capacitors single phase only (order by freezer serial no) Solenoid Valve
Note For All 50-Cycle Freezers Order By Freezer Serial Number
Vl Vl
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prinled In USA
CAB PARTS BREAKDOWN
REF PART No DESCRIPTION PART No DESCRIPTION 1 155109 Cabinet Coil 136297 Condensate Pan (Not Shown) 1A 155113 Motor Cabinet Fan 196092 Mix Tank 7-12 Gal 1B 155099 Fan Blade Cabinet Coil 113997 Front Lid Mix Container
7-12 Gal 136248-01 Rear Lid Mix Cont 7-12 Gal
10 155416 CAB Automatic Expansion 130092 Mix Tube Valve 196028 Mix Tank 10 Gal
137119 Probe 11 -1 4 shy1E 155114 Fan Grill amp Bracket 7-12 Gal Container 1F 155116 Knob 137119-01 Probe 10-34 shy2 113898 DPR Pump Less Motor 7-12 amp 10
(see pump breakdown Gal Container pg 38) 137119-02 Probe 10-14 shy
3 196061 Mix Hose (sold by the foot) 10 Gal Container 4 150416 Door Switch 137120 Base Probe Mtg 4A 114630 Actuator Door Switch 160500 O-Ring
(Not Shown) 114572 Hose Clamp (Not Shown) 5 150527 Retractable Cordset 34
MIg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prlmd UsA
MERCHANDISING ASSY
PART No 115108 115107
PART No
196107-01 196108-01 114610 114608 115132 199030
PART No 162105 162106 112978 158004 158021 158022 158078 158000 158056 158000A 158014 158014A 161000 158049
DESCRIPTION 2S Merchandiser-927-957-978CAB 24 Merchandiser-917CAB
DRIP TRAY
DESCRIPTION
24 Drip Tray-917CAB 26- Drip Tray-927-957-978CAB 24 Tray Insert-917CAD 26 Tray Insert-978CAB-927CAB 26 Tray Insert-957CAB Rubber Bumper (only)
DESCRIPTION Caster With Brake Caster Without Brake Leg-6 4 Cylinder Brush Mix Hose Brush 58 Dia w6 Ft Handle 14 Pump Brush Drain Tube Brush Petrol Gel (12 tube carton) Petrol Gel (6 tube carton) Pe1rol Gel (per tube) Stera Sheen (per case) Stera Sheen (per jar) Pocket Thermometer 1 Dial Z32 Overrun Scale
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SNAKE bull SLUSH
35
36
GEAR REDUCERS Order By Freezer Serial Number
Model 3 CB
153345 5-1 Ratio B side 153004 High Speed Cup ~ (2 ea required) 153005 High Speed Bearing (2 ea required) 153008 Slow Speed Cup (2 ea required) 153009 Slow Speed Bearing (2 ea required) 153052 Slow Speed Seal (2 ea required) 153054 High Speed Seal (2 ea required) 153313 Brass Gear 5-1 Ratio 153336 Slow Speed Shaft Only 5-1 Ratio 153316 Worm Gear On Shaft 5-1 Ratio 114873 Gasket Set
Model 4 CB
153342 10-1 Ratio A side 153343 10-1 Ratio B side
153014 High Speed Cup (2 ea required) 153015 High Speed Bearing (2 ea required) 153011 Slow Speed Cup (2 ea required) 153012 Slow Speed Bearing (2 ea required) 153051 Slow Speed Seal (2 ea required) 153053 High Speed Seal (2 ea required) 153349 Brass Gear 10-1 Ratio 153339 Slow Speed Shaft OnIy 10-1 Ratio 153347 Worm Gear on Shaft 10-1 Ratio 114874 Gasket Set
Winlwin Model
153341 Wintwin 10-1 Ratio A and B Side
153014 High Speed Cup (2 ea required) 153015 High Speed Bearing (2 ea required) 153011 Slow Speed Cup (2 ea required) 153012 Slow Speed Bearing (2 ea required) 153051 Slow Speed Seal (2 ea required) 153053 High Speed Seal (2 ea required) 153349 Brass Gear 153350 Slow Speed Shaft Only 153348 Worm Gear on Shaft 11 4874 Gasket Set
158055 Gear Reducer OU 51001
Drive Coupling (Order By Machine Serial Number)
Mfg by H C DUKE amp SON INC bull 2115 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
917 amp 927 Beater Shaft Assembly
957 Beater Shaft
Item Part No Description
1 196079 Bushing-Cylinder 2 114752 Beater-Assy Long (Shaft) 3 137334 Blade-Scraper Soft Serve 4- 160500 O-Ring (Shaft Seal) 5- 133098 Bushing (Washer-Shaft Seal) 6 160557 Seal-Beater Shaft
-Items 4-6 111875 Seal-Assy Shaft (Complete)
31
1 113438 2 196079 3 137334 4- 160500 5- 133098 6 160557
-Items 4-6 111875
Shaft-Assy Beater Bushing-Cylinder Blade-Scraper O-ring (Shaft Seal) Washer-Shaft Seal (Bushing) Seal-Beater Shaft (Cup)
Seal-Assy Shaft (Complete)
ao
DISPENSING HEAD
16
r
Q
--~
-----_
REF PART No DESCRIPTION Tl3o 6 119928- Door Assembly shy Complete (Items 7-14) 11637- 7 196688 Door shy Less Parts
a 134921 Spigot shy Less Extension 9 134922 Handle Extension shy Spigot
10 162624 Handle 11 159295 OmiddotRings shy Spigot (Lots of 5)12 159309 O-ring shy 4 - Door 13 196066 Air Relief Screw 14 160621 a-Ring shy Air Relief Screw (Lots of 5)15 136126 Rod - Spigot Switch shy 917 8 927 16 136798 HMdKnob
38
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illmols 61244
SUPERIOR QUAUlY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
Duke Soft Serve Freezer Models 917R and 927RN
5 -______
7
6
UPDATEDDispense Head Assembly
Item Part No
115130 1 116321 2 160583 3 115129 4 160562 5 136126 6 134921 SA 162624 68 134922 7 159295 8 160584 9 162625 9A 114341 10 196185 10A 137870 108 136713
116410
Includes items 1-4 6-8
Description
Head-Assy Dispense (Complete) Head-Assy wActualor O-ring (Head-4-inch) Bleeder-Assy (Air Relief Plug) O-ring (Bleeder-Assy) Rod-Spigot Switch Spigot-long Single Handle-Black Tapered Handle-Spigot (Stainless Steel) O-ring (Spigot) O-ring (Extension) Knob-Hand Stud-Assy Cylinder 1-15116 inch (not shown) Nouie-Slar Adapter (accessory) Adapter-Yogurt Nozzle (not shown) Extension-Spigot (accessory-cake not shown) Kit-Dispense Head Switch
( Use only original or authorized replacement parts with this freezer )
DISPENSING HEAD
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH uu
REF PART No 114765
1 196082 2 114313 3 137018 5 136618 6 162626 8 134499 9 162625
10 115129 11 136794 12 159309 13 159295 14 160562 15 136713 16 160584
DESCRIPTION Door Assy-Complete Door-Less Parts Spigot Assy-Side Spigot Only-Center Extension Only-Center Handle Stud-Handle Stop Hand Knob Air Re1ief-Assy Rod-Spigot Switch O-Ring-4-Door O-Ring-Spigot O-Ring-Air Relief Extension-Spigot a-Ring
39
40
PUMP MOTOR AND HOUSING ASSEMBLY SAFETY SWITCH ASSEMBLY
PRESSURE SWITCH ASSEMBLY ijreg~
I
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH IIIUaA
CAB DPR PUMP BREAKDOWN
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 196091 Pump Base 46 114009 Pump Cover 2 136088 Pump Support 47 113464 Base Bracket Assembly 3 150784 Strain Relief Bushing 48 135725 Stud 1-78 4 Power Cord 49 160131 516 Flatwasher 5 160075 10-24 x 38 Screw 50 160293 Speed Clip 6 135416 Cover Electric Box 51 135724 Button 7 160141 14 Lockwasher 52 160140 10 Lockwasher 8 160491 14-20 x 34 Socket Screw 53 135726 Stud 3 9 113497 Motor Cord 18-3 SJT 54 160109 10-24 Hex Nut 10 151127 Motor 40 RPM Soft Serve 55 135729 Switch Actuator 11 160023 14-20 x 1 Screw 56 135731 Stop - Max Pressure 12 153317 Half Moon Key 57 162315 Spring - Soft Serve 13 112925 Cam Drive Plate Assembly 58 160138 10 Flat Washer 14 160495 14-20 x 14 Set Screw 59 160304 10-24 Stop Nut 15 160369 Pin 60 150456 Pressure Switch 16 134614 Swing Clamp 61 135744 Insulator - Fiber 17 134521 Adjusting Clamp 62 160381 6-32 x 1 Socket Screw 18 160488 Thumb Screw 63 160393 6 Flatwasher 19 134604 Bearing Bushing 64 160146 6 Lockwasher 20 134602 Connecting Rod 65 160309 6-32 Hex Nut 21 134601 Piston 66 160006 6-32 x 14 Screw 22 159295 O-Ring 67 160001 8-32 x 38 Screw 23 134603 Wrist Pin 68 160470 8 Lockwasher 24 136089 Cylinder 69 150481 Circuit Breaker 25 199011 Washer Valve 70 135727 Switch Bracket 26 159282 O-Ring 71 136311 Spacer - Cover Switch 27 113839 Pump Valve Housing 72 160028 Truss Head Screw
Assembly (Metal) 14-20 x 34 SST 28 160582 O-Ring 73 160141 Lockwasher 14 29 199020 Sleeve Rubber 74 160104 Hex Nut 14-20 30 135793 Retainer Clip 75 136312 Button Guard 31 135791 Adapter Hose Outlet 76 160020 Hex Hd Cap Screw 32 160581 O-Ring 14-20 x 1 SST 33 135790 Piston 77 113869 Switch Bracket 34 162308 Spring Soft Serve 78 136110 Button Cover Switch 35 135792 Drain Port 79 162314 Spring 36 160611 O-Ring 80 150456 Switch Pump Safety 37 135896 Hose 24 81 135004 Switch Cover 38 160738 Hose Clamp 82 160296 Screw RH 39 136288 Keeper 6-32 x 1-14 40 160554 O-Ring 83 160146 Lockwasher 6 41 160368 Wing Nut Int Tooth 42 130054 Diaphragm Housing 84 160393 Flatwasher 6 43 199019 Diaphragm 85 160309 Hex Nut 6-32 44 196074 Air Tube-Curved 86 114572 Hose Clamp 45 163433 Air Meter - 20 87 160048 14-20 x 12 TRHM
(other sizes available) 88 160308 6-32 x 516 RDHM 89 114581 Circuit Breaker Bracket
Not Shown 90 163109 Stop Pivot 112791 DPR Pressure Gauge
41
Mfg by H C DUKE amp SON INC 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
42
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Unit does not operate 1 Fuse blown at main disconshy 1 Check fuse size check for low nect voltage if not within 10 of
nameplate rating install transformer or call power company
2 Beater motor out on overload 2 Press starter reset button and check for low voltage Check producllemperalure and overrun
3 Disconnected or broken wife 3 Check wiring and wire connecshyin electrical circuit lions repair or replace lead
wires as necessary
4 Faulty selector switch 4 Replace selector switch
5 Out on high pressure 5 Check for low waler supply or dirty air conden ser
6 Out on low pressure 6 Check limit control and freon charge
Compressor does not operate f Troubte in compressor con- I Refer to Trouble-Shootingshyor operates improperly densing circuit Compressor I Condensing
Circuit
2 Faulty capacitor assembly 2 Replace capaCitor assembly (Single phase only)
3 Faulty contactor 3 Replace contaclOr or pOints
Compressor operates but 1 Loose con neclion at motor 1 Tighten connection beater motor does not starter coil (electrical box)
2 Open starter coil 2 Replace coil
3 Faulty capacitor assembly 3 Replace capaCitor assembly (Single phase only)
Dispensed product too hard 1 Cylinder themostat erratic 1 Adjust thermo slat or replace or set too low
2 Faulty time delay relay 2 Replace time delay relay
3 Solenoid valve leaking 3 Replace solenoid valve
4 Low suction pressure 4 See chart on page 15 for adshyjustments
Leaking of mix from rear housshy 1 Damaged bealer shalt seal 1 Replace shaft seal or O-ring ing discharge tube to drip tray inside seal assy
Mig by H C DUKE amp SON INC bull 2116 Eighlh Avenue Easl Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Mix leaking at dispensing head 1 Faulty 4 O-Ring
2 Head not properly installed
1 Replace 4 O-Ring
2 Install head properly
Mix sours in cabinet 1 Cabinet thermostat setting too high
2 Cabinet thermostat detective
3 Cabinet solenoid valve deshyfective
4 Cabinet switch defective
5 Beater motor out on overshyload (cab side)
1 Adjust thermostat
2 Replace thermostat
3 Replace coil or solenoid
4 Replace cabinet switch
S Reset overload for beater motor See pg 42 unit does not operate
Cabinet too COld
Machine runs continually and Product continues to get colder
Compressor operates only when dispensing
Unit runs conMuously Product does nol reach 180 F temperature
6 Door sWitch defectIVe
1 Cabinet thermostat setting too low
2 Defective thermostat
3 Cabinet solenoid stuck open
4 Cabinet expansion valve set too low
1 Plunger switch out of adjustshyment
2 Su ction pressure too low
3 Defective plunger switch
4 Plunger switch rod engaged
5 Faulty time delay relay
6 Starter or relay contacts stuck
7 Faulty thermostat or bulb not deep enough in well
6 Replace door SWitch
1 Adjust thermostat
2 Replace thermostat
3 Replace solenoid
4 Adjust cabinet expansion valve (See pg 15)
1 Adjust plunger switch
2 Adjust expansion valve and check freon charge
3 Replace plunger switch
4 Close plunger completely
5 Replace time delay relay
I 6 Check contacts i
7 Check bulb location or replace thermostat
1 Cylinder themostat setting 1 Adjust thermostat or replace too high or thermostat deshyfective
1 Trouble in compressor I condensing system
2 ExpanSion valve setiing is too high
3 Low on refrigeranl
1 See Trouble-Shooling-CompressorI Condensing circuit
2 Adjust expansion valve
3 Check and repair leak and recharge
1
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE SLUSHbull
43
44
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Dispensed product too soft (Product temperature above 21 0 F)
1 Automatic expansion yalve incorrectly set or erratic in operation
-2 Leak in refrigeration system
resulting in little or no refrigeration
1 Adjust or replace expanSion valve
2 Pump down system or remove refrigerant charge repair leak evacuate and recharge
3 Excessive oil in system 3 Drain compressor to proper oil leyel pump down and flush system
4 Thermostat set too high taulty
or 4 Adiust thermostat or replace
Product dispenses slOWly out dispensing head
1 Reverse rotation 1 Change rotation to clockshywise from front of freezer
2 Dispensing speed adjustshyment boll too far down
2 Adjust bolt upward
3 Pum p problem 3 See pump Trouble-Shooting chart
4 Product too cold 4 See dispensed product too hard pg42
TROUBLE-SHOOTING CHART COMPRESSORICONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor will not start -hums intermittently (cycling on oyerload)
1 Improperly wired
2 Low line Yoltage
3 Open starting capacitor (single phase only)
4 High discharge pressure
1 Check wiring against diagram
2 Ask power company to increase YOltage to not less than 10 below nameplate rating or install transformer Check for inadequate wire size
3 Replace starting capacitor
4 CheCK water regulating valve setting Check water or air condenser and clean if necessary Make sure disshycharge shut-oft valve is open
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor starts but remains 1 Low line voltage 1 Ask power company to in start windings increase voltage to not less (Single phase only) than 10 below nameplate
rating or install transrormer
2 Improperly wired 2 Check wiring against drawing Check wire size
3 Running capacitor shorted 3 Check by disconnecting running capacitor
4 Starting capacitor weak 4 Check capacitor replace
5 High disCharge pressure 5 Check water regulating valve check water or air condenser and clean il necessary Check discharge shut-off valve
Starter burned out 1 Low line voltage 1 Ask power company to inshycrease voltage to not less than 10 below nameplate rating or install transformer
2 Excessive line voltage 2 Ask power company to reduce voltage to maximum of 10 over nameplate rating
Starting capacitors burn out 1 Voltage 100 low 1 Ask power company to (Single phase only) increase voltage to not less
than 10 below nameplate rating or install translonmer
2 Improper capacitor 2 Replace capacitor with properly rated capacitor as listed in manual
Running capacitors burn out 1 Excessive line voltage 1 Ask power company to reshy(Single phase only) duce line voltage to not more
than 10 above rating 01 motor
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
45
46
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Unit operates long or continuously
1 Shortage of gas
2 Dirty condenser
3 Moisture in system
4 Compressor failing
1 Repair leak and recharge
2 Clean condenser
3 Evacuate and recharge system
4 Check compressor lor proper pressures If inadequate replace compressor
Head pressure too high 1 Refrigerant overcharge
2 Air in system
3 Dirty condenser (air cooled)
4 Unit location too warm (air cooled)
5 Restricted water cooled condenser
6 Water turned off or defective
1 Purge system
2 Purge system evacuate and recharge
3 Clean condenser
4 Relocate unIt away from restriction Place nothing against back or on top of unit
5 Clean or replace condenser
6 Turn on water Or replace water regulating valve regulating valve
Head pressure too low 1 Shortage 01 refrigerant 1 Repair leak and recharge
2 Water regulating valve open 2 Adjust regulating valve too wide
Water 1I0wing through water 1 Water regulating valve 1 Replace water regulating valve waste line when unit is not in operation
defective
Noisy compressor 1 Tubing raUle 1 Bend tubes away from contact
NOTE Refer to warranty card prior to compressor replacement
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING DPR PUMP
TROUBLE PROBABLE CAUSE REMEDY
Pump will not run 1 Pump cover removed 1 Install pump cover
2 Pressure switch actuating 2 Free bulton-check spring and
bulton stuck open (in) pressure switch alignment
3 Pressure switch burned out 3 Replace pressure switch
4 Starting switch in motor bad 4 Install new starting switch
5 Motor burned out 5 Replace motor
6 Circuit breaker kicked out 6 Allow to re- set Replace it or faulty circuit breaker will not
automatically re-set
Motor runs-cam drive plate 1 Loose cam drive plate 1 Tighten set screw in cam will not turn drive plate Check woodruff key
2 Gear stripped 2 Replace gear
Pump will not shut off Mix 1 Pressure swilch actuating 1 Free button-check pressure shoots out pressure relief bulton stuck closed (out) switch alignment
2 Pressure switch stuck in 2 Replace pressure switch closed position
3 Pressure switch assy out 3 Using pressure gauge adjust of adjustment pressure
4 Dirty or plugged diaphragm 4 Disassemble and clean housing (Ref 42) housing
5 Defective O-Ring on 5 Replace O-Ring pressure relief piston
Pump will not prime 1 Insufficient supply of mix 1 Replenish mix supply
2 Piston O-ring defective-no 2 Replace piston O-Ring and suction lubricate
3 Washer valve not sealing 3 Replace washer valve DO NOT LUBRICATE
Pump primes No pressure in 1 Sleeve (Rei 29) not sealing 1 Replace sleeve DO NOT cylinder properly LUBRICATE
2 Loose hose connection on 2 Install or tighten hose clamp pump valve housing (Ref 27)
Mix shoots out Of air intake line 1 Washer valve (Ref 25) 1 Replace washer valve-DO not sealing properly NOT LUBRICATE
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOfT SERVE bull SHAKE bull SLUSH
47
48
TROUBLE-SHOOTING DPR PUMP
Too much air overrun too high-popping problems
Product dispenses slowly out of disPenSing head
1 Air meter too large (Ref 45)
2 Air leak befween mix conshytainer and mix inlet
3 Air line hose crackedshysucking air (Ref 44)
4 Pump pressure too lowshycylinder not full
1 Pump pressure too low
2 PrOduct too cold
3 Low overrun
Diaphragm housing leaking mix 1 Diaphragm housing loose
2 Diaphragm defective
Piston drive assy noisy 1 Bushing bearing worn
2 Defective gear in gear motor
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SIfAKE bull SLUSH
REMEDY
1 Replace washer valve-DO NOT LUBRICATE
2 Install clamp on hose
1 Replace O-Ring and LUBRIshyCATE
1 Clean or replace air meter
2 Replace tube
1 Install smaller air meier
2 Repair as needed
3 Replace air line hose
4 Using pressure gauge adjust pressure switch
1 Using pressure gauge adjust pump pressure
2 Check product temperatureshyshould be about 18 F
3 Check meter-if plugged-clean
1 Tighten wing nuls (Ref 41)
2 Replace diaphragm (Ref 43)
1 Replace bushing bearing (Ref 19)
2 Replace gear
TROUBLE
Mix inlet hose loses prime
Mix on top of piston
PROBABLE CAUSE
1 Washer valve (Ref 25) not sealing properly
2 Mix inlet hose loose
1 Piston O-Ring leaking (Ref 22)
No Air (Overrun) 11 Ai r meter plugged (Ref I 45)
2 Curved air tube pinched
--
DPR PUMP aI
PART NO 199019(i) PART NO 199020 reg DIAPHRAGM RUBBER SLEEVE
PART NO159295 PART NO 159282reg O-RING O-RING0
PART NO 160581reg O-RING
o PART NO PART NO
PART NO199011() 160611(8) 160582 WASHER VALVE O-RING O-RING
PISTON
cJ
DIAPHRAGM HOUSING
CYLINDER
VALVE HOUSIN6 ASSEMBLY
PUUPOUTLET
DRAIN PORT
I PHNO309-755-4553 O-RING CHART HCDUKEampSONINC I
1 I84Z08 SOFT SERVE DISPENSING HEADS I
o PART NO 1605620
PAR~159--1b
PART NO PART NO 1605841 59295()
I PHNO 309-755-4553 O-R ING CHART HCDUKEampSONINC I
- Cover
- Table of Contents
- Safety
- Uncrating amp Inspection13
- Explanation of Electrical Controls
- Operation of Machine
- General Information
- Maintenance amp Adjustment
- Parts Breakdowns
- Trouble-Shooting Charts
- O-ring Charts
-
4
ELECTRICAL REQUIREMENTS
The phase and voltage of your machine are shown on the nameplate on the rear panel Voltage should be within plusmn10 of voltage indicated on nameplate Request local power company to correct voltage
WARNING
FAILURE TO CONNECT OR SUPPLY -PROPER VOLTAGE TO THIS FREEZER WILL VOID YOUR WARRANTY
SPECIAL NOTE On all Delta three phase circuits wild or high leg must be connected to L2 (red wire)
NOTE All machines single and 3 phase require a neutral line to complete the 115 volt circuit for the mix pump motor
ELECTRICAL CONNECTIONS
WARNING
IN ORDER TO PREVENT ACCIDENTAL ELECTRICAL SHOCK CONmiddot A NECT A POSITIVE EARTH GROUND TO THE SCREW PROVIDED IN THE CONNECTION BOX
You will find the connection box at the rear of the machine
Double CABS must be wired with two power lines Each side of these machines operates individually and separate wiring will allow service on either side without shutting down both sides
FUSES
Use dual element fuses rated at 25 over the full load amperage (FLAJ rating of the machine ReIer to the nameplate on the rear panel 01 the machine As mentioned before all double head machines should be wired and fused as individual units Use a flexible connection when permissible All materials and connections must conform to local codes and lor the National Electrical Code
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline illinOIS 61244
SUPIRIOft QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH iIIU1A
ELECTRICAL SPECIFICATIONS
REFER TO NAMEPlATE ON REAR OF FREEZER FOR ELECTRICAL SPECIFICATIONS
AIR COOLED MODELS
When installing self contained air cooled CAB models remember that the flow of air is from right to left through the upper portion of ttle machine-This means that you cannot have any obstruction on either side of the machine A minimum of six (6) inches clearance on either side is required Anything in this area will reduce the efficiency of these models
When installing all other air cooled cab models remember that the flow of air can either be from the sides through the top panel or from the rear through the top panel In each case a minimum of six (6) clearance must be maintained on either the side panels or the rear panel and the top panel must be free from obstructions Anything (including cone dispensers) in this area will reduce the efficiency of these models
WATER COOLED MODELS
Water cooled Single CAB models will require a 38 MPT water inlet and water waste connection
Water cooled Double CAB models will require a 12 MPT water inlet and water waste connection Both units are tied together so that one water inlet and one water waste is all that is required
All water connections are found on the bottom under the compressor mounting area and are clearly tagged-HWater Inlet and Water Waste It is suggested that a manual shut off valve be installed in the water inlet line at the time of installation
WARNING
DISCONNECT MAIN POWER SUPPLY AND WATER SUPPLY BEFORE BLOWING WATER OUT OF THE CONDENSER
CAUTION ALL WATER COOLED MODELS MUST HAVE CONDENSERS BLOWN OUT IF EXPOSED TO BELOW FREEZING TEMPERATURES AIR PRESSURE OF AT LEAST 20 LBS SHOULD BE PUT THROUGH THE WATER LINES STARTING INSIDE THE WATER VALVE IT IS RECOMMENDED THAT A QUALIFIED REFRIGERATION TECHNICIAN DO THIS
NOTE The water waste connection should be checked periodically to ensure water is not running when the freezer is not in operation
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
5
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MODEL 9S7-CAB
ELECTRICAL SEfIIIlCE
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TOP Of UNl r MUST BE KEPT CLEAR TO ALLOW AIR EXHAUST
26
bull
-1f2 MPT WAiER
- Y2 MPT WATfR OUT (WATER C(X)lED UNITS otaX)
ALL CONNECTIONS ARE MADE THROuWi eOTTOtt OF FREEZER
EXPLANATION OF ELECTRICAL CONTROLS SOFT SERVE CAB ELECTRICAL CONTROLS
The fotrowing is an explanation of each switch across the front of the machine
PUSH TO RESETmiddot Your machine is equipped with an electrical overload system so the beater motor is protected against burn out if your machine is stopped by the overload it will be necessary to push the reset button before it will start again If this happens frequently your machine should be checked for proper voltage or any unusual cause of strain on the beater motor
SELECTOR SWITCHmiddot This is a three position switch that controls the following operations
CLEANOUT (to the left) operates the beater motor only This position should be used in all cleaning and sanitizing operations OFF (Center Position) turns off the cylinder refrigeration and the beater motor AUTOMATIC (to the right) activates the cylinder refrigeration the beater motor and refrigeration to cabinet This is the normal operating position for both day and night operation
MIX PUMP SWITCH bull Controls the DPR pump located in the refrigerated mix storage cabinet Turn this switch to the left ON position for operation and to the right OFF position for disassembling cleaning and night operation
THERMOSTAT SWITCHmiddot Controls the day and night refrigeration cycles The DAY position to the left activates the low temperature refrigeration system and allows the beater motor to operate The NIGHT poSition to the right switches the refrigeration system to a medium temperature holding cycle
CABINET SWITCH bull Controls the cabinet refrigeration The cabinet refrigeration is on when the switch is turned to the left and off when turned to the right Cabinet is automatically on when the selector switch is in the AUTO position
TIMERmiddot is a quick freeze switch Turning the timer will bypass the thermostat forcing the compressor and beater motor to operate The timer can be used for quick start ups in the morning or for fast recovery when large portions are dispensed
CAUTION EXCESSIVE USE OF THE TIMER CAN CAUSE YOUR MACHINE TO FREEZE UP USE ONLY WHEN NECESSARY
RED PILOT LIGHT
When this light is on it is an indication that the compressor is running This can only be on when the Selector Switch is in the AUTO position This light should never be on when anything but approved product is in the freezer (never on when water sanitizer or milkstone remover is in the freezer)
AMBER PILOT LIGHT
When this light is on the agitator drive motor is running This may be on when the Selector Switch is in the CLEAN or AUTO position Whenever the red pilot light is on the amber should also be on
DIAL THERMOMETER
This is an indication of the approximate temperature of the evaporator It should be viewed as an indication of how well the freezer is operating Once familiar with the normal operating measurement (usually between 5 and 15 deg) it is easier to detect unusual or abnormal functions of the freezer Observation of the thermostat often during each day 01 operation is a goOd habit for all operators This is not a measurement of prOduct temperature
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline lInol5 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SWSH PrioMd Ull II
6
CAUTION SWITCHES 1 2 and 4 DO NOT SHUT OFF THE SUPPLY OF POWER TO THE MACHINE THIS ONLY PREVENTS THE CONTROLS FROM OPERATING IF ANY
A ELECTRICAL REPAIRS ARE REQUIRED DISCONNECT THE MAIN POWER SUPPLY TO THE MACHINE AT THE CONTROL PANEL OR FUSE PANEL
PLUNGER SWITCHmiddot This switch only works in the day mode when the selector switch is in the AUTO position When the dispensing handle is pulled down the plunger switch rod raises and engages the plunger switch to turn on the beater motor and compressor The plunger switch activates the time delay and overrides the thermostat When the dispensing plunger is returned to the closed position the machine will continue to run for 12 seconds on the time delay and will then turn off unless the termostat requires additional refrigeration
DISPENSING SPEED ADJUSTMENT
WARNING
A MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFF POSImiddot TION AND THAT THE MAIN POWER SUPPLY IS DISCONNECTED
All soft serve machines have a dispensing speed adjustment To make this adjustment it is necessary to remove the merchandiser and cover from in front of the electrical box Upon removal of this panel you will see the plunger switch mounting bracket (see page 26) At the top of this bracket is the adjusting screw After loosening the lock nut adjust the screw as required The further down you turn this screw the slower the product will come out If you do this with patience you can adjust the machine to the point where the unit cannot be outdrawn (turn to a product that is too soft)
CAUTION ADJUSTING THE SCREW TOO FAR DOWN CAN CAUSE THE MACHINE TO FREEZE UP
TEST OF INSTALLATION
Remove the dispensing head and beater shaft (See Washing Instructions) so that the unit can be tested Turn on the pump switch (pump cover must be in place) to insure that the pump is running turn switch off Turn the following switches on in this order (1) Thermostat switch DAY (2) Cabinet Switch ON and (3) selector switch AUTOMATIC Let the unit run and at this pOint check beater rotation (clockwise from front) frost line in cylinder (front to back) and cabinet refrigeration Allow the unit to run until it shuts of automatically Should you have a short cycle (machine turns on then off every 10 or 15 seconds) check the water inlet manual valve Insufficient supply of water to the machine will give you this short cycle After the machine turns off automatically turn the selector and cabinet refrigeration switch OFF Cabinet refrigeration system will not operate when cabinet door is open
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Molme illinOIS 61244
SUPERIOR QUALIlY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
OPERATION OF MACHINE DISASSEMBLY AND WASHING
Your Soft Serve machine has been completely tested at the factory It is important that the machine be dismantled washed and lubricated before operation
CAUTION ALL CONTROL SWITCHES MUST BE IN THE OFF POSITION AND THE MAIN POWER SUPPLY DISCONNECTED FOR DISASSEMBLY AND REASSEMBLY BE SURE THE MACHINE IS DEPRESSURIZED BEFORE PROCEEDING (See page 13)
Refer to pages 37 38 and 39
Remove the plunger switch rod by lifting this rod up and swinging the bottom portion out and then pulling down Place the plunger switch rod on the drip tray Remove the two hand knobs and pull the head assembly straight out You will find that this is tight as there is an a-ring on this head Remove lever pin pull out handle and plunger
Remove cylinder bushing and pull out the beater shaft holding the knives as you do so Remove rear seal from shaft Take the head and beater shaft assemblies to the washing area Wash all parts thoroughly in a warm detergent solution and then rinse Wash the drain tube and cylinder using the brushes supplied
NOTE Do not dry any parts - reassemble them wet or allow to air dry
NOTE All O-rings must be removed in order to properly wash parts
Remove the DPR Pump from the cabinet in the bottom of the freezer Details on this are given in the pump section of this manual on pages 9-10 following
LUBRICATION AND REASSEMBLY
NOTE We recommend using Petrol Gel or equivalent
Lubricate the a-ring inside the rear seal Place it on the shaft so cup side will be against back of freezing cylinder DO NOT LUBRIGA TE THE GRAY RUBBER SEAL This seal is held under tension against the back of the cylinder when the beater and door are in place The cup seal remains stationary while the shaft turns freely in the plastic bushing Place both blades on the beater shaft and slide the beater into the cylinder Make sure the blades are installed properly The portion of the blade containing 2 knobs should face away from the cylinder walls When inserting the beater place the rear blade on the bottom of the cylinder This will center the beater and allow alignment with the drive coupling Push the beater shaft in and rotate until beater is engaged in the drive coupling The front of the beater shaft when engaged in coupling should be about 12 inside the cylinder Lubricate the inside surface of the cylinder bushing and install in cylinder
CAUTION ALWAYS MAKE SURE THAT THE BEATER BUSHING IS ON THE FRONT OF THE BEATER SHAFT OPERATION WITH A MISSING OR BADLY WORN BEATER BUSHING WILL DAMAGE THE BEATER AND CYLINDER
Lubricate the a-rings on the dispensing plunger and insert the plunger half way into the head Insert the plunger handle and lock in place with the lever pin Lubricate the 4 a-ring and slide the head assembly over the two cylinder studs Replace the two hand knobs and tighten the head on the cylinder DO NOT overtighten the knobs If leakage occurs check the 4 a-ring Replace the plunger switch rod
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALllY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
9
10
DPR PUMP OPERATION AND MAINTENANCE A CAUTION ALL CONTROL SWITCHES MUST BE IN THE OFF POSITION AND THE MAIN POWER SUPPLY DISCONNECTED FOR DISASSEMBLY AND REASSEMBLY
DISASSEMBLY
Step 1 - Reference DPR pump breakdown pages 40 and 41 for assistance in identificashytion of pump parts and their associated reference numbers If the pump has been in operation be sure that it is depressurized before proceeding to step 2
Step 2 - Remove attached mix hoses and pump cover (Ref 46)
Step 3 - loosen the thumb screw (Ref 18) and swing away the clamp (Ref 16) Carefully remove the entire pump assembly from the pump support (Ref 2)
Step 4 - Remove wing nuts diaphragm housing and diaphragm (Ref 41 42 and 43)
Step 5 - Further disassemble the pump by removing the piston assembly including the piston connecting rod and wrist pin (Ref 20 21 and 23) Separate the wrist pin and connecting rod from the piston Remove the curved air tube air meter outlet hose adapter and cylinder (Ref 24 31 44 and 45) from the valve housing assembly (Ref 27)
Step 6 - Grasp the outlet hose adapter asembly (Ref 31) and remove the keeper (Ref 39) while pressing inward on the drain port (Ref 35) Carefully lift and remove retainer clip (Ref 30) Caution must be exercised when removing the retainer clip as the relief mechanism parts (Ref 33 34 and 35) are spring loaded Remove the piston spring and drain port
Step 7 - Remove all a-rings rubber sleeve (Ref 29) and washer valve (Ref 25) All parts disassembled in steps 2 through 7 should be washed thoroughly in a solution of mild detergent and water not exceeding 120deg F Rinse all parts
NOTE All O-rings must be removed in order to properly wash parts
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Mohne illinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
LUBRICATION AND REASSEMBLY
Reassemble by reversing the steps on page 10 and lubricate as follows
When replacing the flat rubber washer (Ref 25) DO NOT LUBRICATE Important -This rubber washer acts as the air and mix check valve and must lie flat against the top of the pump valve housing Install it over the mushroom cap and move it around to make sure that it is sealed Ins~n the sleeve (Ref 29) Like the washer valve this should not be lubricated and fits on the pump valve housing with the tapper to the bottom
All the O-rings on the pump should be lubricated lightly The O-ring on the piston (Ref 21) should be lubricated liberally as this is the major wearing O-ring and must provide a good seal
Install the O-ring and spring on the piston (Ref 33) Lightly lubricate the O-ring (only enough to make it shiny) Install the piston with the O-ring end in first Lubricate the O-ring on the drain port and install it in the adapter Push in on the drain port and slide the clamp over the top to lock it in place Place the keeper (Ref 39) over the exposed end of the drain port and install the hose and clamp on the drain port Install the pressure switch diaphragm in the diaphragm housing
The pressure switch diaphragm (Ref 43) requires no lubrication
Install the diaphragm housing and diaphragm on the two studs and tighten wing nuts hand tight Install the pump assembly on the bracket-drive assembly in the refrigerated cabinet The shoulder of the white bushing (Ref 19) faces the drive cam (Ref 13) when slid into place properly Be sure to insert the mix output body (Ref 31) over the diaphragm housing (Ref 42) Return swing and adjusting clamp to closed position and tighten thumb screw Replace mix hoses and tighten all hose clamps
NOTE The pump will not operate without the cover (Ref 46) in place
WARNING
MAKE SURE ALL HOSE CONNECTIONS AND THE SWING A CLAMP ARE TIGHT BEFORE PRESSURIZING MACHINE THIS SYSTEM PRODUCES 30-32 PSI DURING NORMAL OPERATION
11
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH PrIntId USA
12
SANITIZING INSTRUCTIONS
The washing and sanitizing instructions explained in this manual are required to maintain a clean sanitary machine Your Soft Serve machine should be disassembled cleaned and sanitized to insure the best possible product and machine operation
Prepare a solution of sanitizing water (for each barrel) in a 2-3 gallon container (Solution should be 200 PPM chlorine using Diversol or equivalent) Place the container in the refrigerated cabinet and insert the mix inlet hoSe or stainless steel mix tube in the sanitizer Turn the pump switch ON (located at front of machine) and allow the pump to build up pressure and shut off automatically Turn the selector switch to the CLEAN OUT position and allow the beater to run for 5 minutes This insures the sanitizing solution touching all of the internal parts Placing a container under the dispensing head release the solution from the cylinder by depressing the dispensing handle Do this slowly as the cylinder is under 30 pounds pressure HINT Remove serrated nozzle (Ref 2) for this operation Sanitize nozzle and install when mix is ready to be dispensed Leave the dispensing handle down until the pump has forced all or most all of the solution through the machine When completed turn the selector switch and pump switch OFF You are now ready to start your freezer
You are working with a pressurized machine Always check for possible leaks when sanitizing your machine A leak around the head is obvious and usually calls for the replacement of the dispensing head O-rings A leak in the shaft seal will flow out of the drain tube just below the dispensing head This usually requires the replacement of the shaft seal or shaft seal O-ring Any leakage in the pump would require that the O-ring be replaced at the point of leakage
NOTE Sanitizing is always done prior to starting the machine Never sanitize the day belore and let the machine sit overnight
START UP INSTRUCTIONS
After sanitizing immediately fitl the container with mix Place the mix inlet hose or stainless steel mix tube in the container of mix (If you are using a plastic bag container supshyplied by the dairy it is recommended that you notch the plastic hose or use a perforated mix can tube so that the bag cannot be drawn into the mix inlet restricting the flow of mix If not careful a hole can be made in the bag) Sanitizer will remain in the pump mix hose and cylinder Turn the pump switch on starting the pump and depress the dispensing handle opening the dispensing plunger Leave the dispensing plunger open until you receive
pure mix at the nozzle The mix will push the remaining sanitizer out of the machine if the plunger is left open Close the plunger after removing all remaining sanitizer (See page 20)
After the cylinder is pressurized and the pump has shut off place the selector switch in the AUTOMATIC position At this pOint make sure the cabinet switch is at the ON position and the thermostat switch is at the DAY position Allow the machine to cycle and freeze down Normally several refrigeration cycles will be needed before a frozen product can be dispensed
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
It is impossible to start the freezer and not have excess air in the cylinder Since you have air in the cylinder and the pump is also adding air to the mix on first start up you will have air pockets in the cylinder These pockets can be eliminated if after two or three cycles you will turn the selector switch to the OFF position Pump switch must be at ON position With the selector switch off slowly open the dispensing plunger and bleed off the excess air until liquid mix comes out the dispensing head Close dispensing handle allow the cylinder to fill and turn selector switch to AUTOMATIC At least 30 minutes cycling time should be allowed to insure a ready produ~l
CLEANING PROCEDURE - DRAINING MACHINE
Place selector switch on the front of the machine to CLEAN OUT and let the beater run for about five minutes This will allow the product in the cylinder to soften up Place a clean sanitized container under the dispensing nozzle and very slowly draw off the semishyfrozen cream until liquid mix appears at the nozzle Remove the stainless steel mix tube or mix hose from the mix container Leave the dispensing plunger open until all the mix has run out of the cylinder and place the container in the cooler for storage Place the mix inlet hose in a container of cold water allow the cylinder to pressurize and flush the machine with the selector switch on CLEAN OUT Follow with a container of warm water until machine is rinsed clean Place the selector switch and pump to OFF Refer to disassembly instructions (Ref page 9)
WARNING
YOUR SOFT SERVE MACHINE OPERATES ON 30-32 POUNDS PRESmiddot A SURE NEVER DISMANTLE ANY PART OF THE MACHINE UNLESS THE MACHINE HAS BEEN DEPRESSURIZED THE SELECTOR
SWITCH IS IN THE OFF POSITION AND THE MAIN POWER SUPPLY HAS BEEN DISCONNECTED DEPRESSURIZE THE CYLINDER BY OPENING THE SPIGOT WITH THE PUMP SWITCH IN THE OFF POSITION
CLEANING MIX HOSE
The CAB models use the DPR mix pump You must disconnect the mix hoses and clean them thoroughly USing a long handle brush and a suitable cleanersanitizer you must brush the interior of the mix hose to insure there is no build up of product on the walls of the hose Water temperature for this cleaning process should be 1800 F to meet some health codes After reassembly pump sanitizer through the hoses
Mfg by H C DUKE amp SON INC 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
13
14
GENERAL INFORMATION OVERRUN ADJUSTMENT
The overrun on your CAB machine equipped with a DPR pump is regulated by the air meter (Item 45-pump parts breakdown) You are supplied with three air metering plugs each containing a different size orifice The smaller the hole the lower the overrun The larger the hole the higher the overrun The orifice or hole in this air meter must be open at all times It is the only source of air into the freezing cylinder Check this daily
The mix will be a determining factor as to the amount of overrun you will be able to achieve Some mixes will accept more air than others thus regulating the size of air meter you can use Test to see which air meter will give you the best overrun and the best tasting shake Run each air meter for one day until you make the determination You may have a slightly higher overrun when you first start up the machine When the machine has run long enough to dispense at least one full cylinder of product you will have the overrun that the machine wil hold the remainder of the day
ADJUSTING PUMP PRESSURE
Only to be performed by a qualified service technician
A WARNING
DISCONNECT MAIN POWER SUPPLY BEFORE REMOVING PANELS
NOTE The pump will not operate without the cover in place
The DPR Pump is controlled by pressure in the mix line acting on the diaphragm (Ref 43) As the pump fills the freezer cylinder with mix pressure builds causing the diaphragm to expand As the diaphragm expands it contacts the button (Ref 51) which in turn depresses the pump pressure switch (Ref 60) The pressure switch button moves inward until the switch is opened turning off the pump motor When product is drawn from the freezer the diaphragm closes the pump pressure switch allowing the pump motor to restart Pump pressure will check the same with air mix or water We suggest the pressure be checked with air pressure only
Step 1 - Remove the rear panel from machine and the pump electrical box cover (Ref 6)
Step 2 - Locate the pressure adjusting nut (Ref 59) Turn the adjusting nut clockwise to increase pressure or counterclockwise to decrease pressure Usually one half turn of the adjusting nut will raise or lower the pressure of the model DPR pump two (2) PSIG
Step 3 - Install a quality pressure gauge in the mix output line Turn main power supply and pump switch to ON pOSition Caution Electrical power present through entire machine Allow the pump to pressurize until it shuts off automatically Observe the gauge pressure reading and disconnect main power supply Repeat the adjustment steps 1 through 3 until the proper pressure is obtained (30 to 32 PSIG) Reinstall the electrical box cover and rear panel
NOTE Pressure tine must be at least 6 fI long in order to obtain an accurate reading
A Pressure Gauge PIN 112791 may be purchased from your local distributor
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
PRESSURE RELIEF ASSEMBLY
The model DPR Pump incorporates a self contained safety pressure relief system The parts included in this assembly are (Ref 30 through 39) Any discharge of mix through the hose (Ref 37) is an indication of excessive pump pressure For corrective action refer to the trouble shooting section of this manual
REFRIGERATION SETTINGS
A WARNING
DISCONNECT MAIN POWER SUPPLY BEFORE REMOVING PANELS
The CAB Soft Serve machine contains two types of temperature control devices the expansion valve and the thermostat (explained in Thermostat Section) The expansion valve meters the flow of refrigerant to the cylinder and must be set correctly to give you maximum production
To locate the expansion valve remove the side panel On the single head CAB machines remove the right side panel The double head machines will have an expansion valve behind both right and left side panels
The expansion valve should only be adjusted by a refrigeration technician with refrigeration test gauges connected to the compressor Adjustments to the valve are shown in the following chart
REFRIGERATION SETTINGS MODEL TYPE OF COOUNG WATER AIR 917CAB 927CAB 957iAa I
Cyl Suction Pressure Rmiddot502 15middot17 (PSIG) 15-17 (PSIG)
9711CAS Cyl Suction Pressure R-502 15middot17 (PSIG) 15middot17 (PSIG)
ALL SOFT SERVE
CABS
Cab Suction Pressure Rmiddot502 Head Pressure Thermostat Differential
8middot10 (PSIG) 230-240 (PSIG)
17degmiddot22deg 7deg~8c
8-10 (PSIG) 230middot315 (PSIG)
17deg_22deg 7c -8deg
NOTE To correctly set the cylinder expansion valve the cabinet thermostat switch An must be in the OFF position (Full counterclockwise) with the compressor running
NOTE To correctly set the cabinet expansion valve the selector switch must be in the OFF position and the cabinet switch in the ON position (With the compressor running)
A refrigeration test gauge must be used when adjusting the suction pressure To reduce the suction pressure turn the adjustment screw on the expansion valve counterclockwise Do not turn more than 14 turn at a time Let the unit operate a sufficient length of time - at least two minutes - to properly read on the gauge the adjustment made
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline illinOIS 61244
SUPERIOR QUAUTY FREEZERS bull SOFt SERVE bull SHAKE bull SLUSH
15
16
THERMOSTATS
A WARNING
DISCONNECT MAIN POWER SUPPLY BEFORE REMOVING PANELS
Thermostat Au is the cabinet refrigeration thermostat The cabinet thermostat operates off of both the day and night switch operation to maintain 44 0 F or lower in the mix storage cabinet This thermostat can be adjusted by rotating the adjustment knob To set this thermostat colder turn the adjustment knob clockwise
CYLINDER THERMOSTAT
The cylinder thermostat is located behind the right side panel (on single head CABs) faCing the front of the machine On the double head CABs like the expansion valve a cylinder thermostat is located behind both the right and left side panels This control has two settings The first is the differential which should be set on 7-8deg F The other side of the control marked HIGH EVENT should be set between 17-220 F
The purpose of the cylinder thermostat is to maintain an 18deg F product during idle periods If the thermostat is set too cold and product is not drawn out of the machine a freeze up condition will result DO NOT run the product below 17deg F
NOTE The settings on the thermostat are ONLY to be used as a guide
For a correct adjustment a thermometer must be used to check the actual product temperature Each thermostat should be set in the field for the product being used Most of the time a temperature setting of between 18deg and 19deg F will maintain a satisfactory product Once the thermostat is set for the mix used it should require no further adjustment
MIg by H C DUKE amp SON INC 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH P~IIIIUSA
THERMOSTAT_________ Turn knob clockwise to make product colder
Differential adjustment
copy
COLDER ~ reg
copy5
2 6Igt
1 7 OFF
copy
THIS ASSEMBLY USED ON LEFT SIDE OF UNIT
RIGHT SIDE USES THIS ASSEMBLY WIO THERMOSTAT A (CAB THERMOSTAT)
MIg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
17
18
MAINTENANCE AND ADJUSTMENT
ONLY TO BE PERFORMED BY A QUALIFIED SERVICE TECHNICIAN
WARNING
MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFF POSITION AND THAT THE MAIN POWER SUPPLY IS DISCONNECTED BEFORE REMOVING PANELS
LUBRICATION INSTRUCTIONS
FAN MOTOR (Air Condenser) Lubricate annually with SAE 10 motor oil in the oil cups
CAUTION DO NOT OVER-LUBRICATE OVER-LUBRICATION CAN DAMAGE MOTOR
GEAR REDUCER The gear reducers are heavy duty worm-geared units manufactured to HC Duke specifications II traces 01 oil are found in the immediate area around the reducer repair the leak (usually an oil seal) and check the oil level When adding oil use only synthetic gear lube in the reducer
NOTE This is a special oil and will not mix with a petroleum base oil Contact your distributor when this oil is needed This oil should be changed at least once a year
OIL LEVEL PLUG
PROPER OIL LEVEL
OIL DRAIN USE SPECIAl PLUG OIL ONLY
USE SPECIAL LOILON=LY-- I
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH ~1U8A
MAINTENANCE AND ADJUSTMENT ONLY TO BE PERFORMED BY A QUALIFIED SERVICE TECHNICIAN
WARNING
MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFFA POSITION AND THAT THE MAIN POWER SUPPLY IS DISCONNECTED BEFORE REMOVING PANELS shy
BEATER MOTOR Beater motors are either single or three phase Capacitor starting is used on the single phase units The beater motor should be inspected and cleaned
WATER COOLED CONDENSER Depending on the condition of your water the condenser on your CAB machine may require cleaning from time to time Usually a restricted flow of water resulting in a high head pressure indicates a dirty condenser The condenser should be flushed out with an acid solution by a qualified service technician
AIR COOLED CONDENSERS At least once a month the face area of the condenser should be inspected for accumulation of dirt and dust Surface dust and dirt can usually be removed with a stiff brush andor vacuum cleaner After brushing hold a light between the fan blades and look through the condenser from the opposite side This procedure will locate those areas where accumulated dirt has lodged between the condenser fins To clean these areas obtain a small tank of nitrogen or C02 with a needle control valve or pressure regulator with a small hose attached and proceed as follows
(1) Place a damp towel or cloth over the face area of the condenser
(2) Open the control valve or regulator on the tank releasing pressure to the coil from the back side cleaning the condenser
(3) Check the condenser periodically with the light and continue the treatment until the fins are clean
For maximum performance replace all worn O-Rings Seals Blades etc
CAUTION USE ORIGINAL OR AUTHORIZED REPLACEMENT PARTS ONLY WITH THIS FREEZER
Mig by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline illinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
19
20
PULLEY ALIGNMENT AND BELT TENSION ONLY TO BE PERFORMED BY A QUALIFIED SERVICE TECHNICIAN
WARNING
A MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFF POSITION AND THAT THE MAIN POWER SUPPLY IS DISCONNECTED
Remove the side panels to expose the pulleys and belts
Check the alignment of the beater motor pulley and gear reducer pulley by placing a straight edge across the faces of the two pulleys If the pulleys are not aligned adjust as necessary until proper alignment is obtained
Depress the belts with a finger at a point midway between the two pulleys When properly adjusted the belts should depress 12 from its normal position with approximately 5 pounds of pressure If the belts are too tight or too loose adjust as necessary until proper belt deflection is obtained Loosen four (4) bolts which hold the motor mounting plate to the frame With these loose adjust tension bolt in or out as required to obtain proper belt tension Retighten bolts
BELTS
Periodically inspect the belts If they are worn excessively replace both belts For best results it is advisable to replace both belts as they are manufactured in matched sets
SCRAPER BLADES
NOTE Be sure to purge all of the sanitizer from the mix system before operating the freezer (see page 12) Failure to completely remove sanitizer or water trom the freezing cylinder before placing the machine in the Automatic position may cause blade breakage and damage the freezer
o o
NEW BlADE WORN BLADE
Replace blades if worn 316 or more
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
END PLAY FOR BEATER DRIVE COUPLING
It is very important that the drive coupling located on the gear reducer be set properly Referring to the Drive Coupling Illustration the following procedure should be followed in setting the end play
WARNING
MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFF POSITION AND THAT THE ELECTRICAL POWER TO THE MACHINE IS DISCONNECTED SO THAT THE UNIT WILL NOT OPERATE
------
DRIVE COUPLING ILLUSTRATION
REF DESCRIPTION REF DESCRIPTION 1 Gear Reducer 6 Reducer Mounting Plate 2 Beater Shaft 7 Set Screws 3 Shaft Seal 8 Bolt Gear Reducer 4 Drive Coupling 9 Bolt Reducer Mounting Plate 5 Spacer 10 Key
11 Output Shaft
Improper drive coupling spacing will damage the beater shaft dispensing head and drive coupling When checking end play settings or replacing a coupling proceed as follows
REMOVING COUPLING
WARNING
DISCONNECT MAIN POWER SUPPLY
Mig by H C DUKE amp SON INC bull 2116 Eighth Allenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SO SERVE bull SHAKE bull SLUSH
21
22
(1) Remove Beater Shaft (Ref 2)
(2) Remove both drive belts (not shown)
(3) Remove gear reducer bolts (Ref 8) Six (6) bolts are located around the face of the reducer
NOTE Remove the top bolt last holding the bottom of the reducer as you do so
(4) Remove the gear reducer (Ref 1) and place-on table or bench
(5) Replace two (2) bolts (Ref 8) one (1) at the top and one (1) at the bottom so that the reducer cover will not come off while the coupling is changed
(6) Loosen the four (4) set screws (Ref 7) and remove the drive coupling (Ref 4) Should the coupling be stuck tight to the ouput shaft lightly tap the coupling from the back with a hammer and bar Sometimes due to age this coupling will stick so tight it will have to be removed with a pulley removing tool or a wheel puller
(7) Remove the key (Ref 10)
INSTALLING THE NEW COUPLING
(1) Clean gear reducer output shaft (Ref 11) with fine emery cloth and slide the new drive coupling on the reducer shaft The coupling should slide on the shaft all the way without the key If the coupling doesnt slide completely on check both coupling and reducer shaft for burrs When a smooth sliding fit is achieved remove coupling and proceed with final assembly
(2) Place key (Ref 10) in keyway slot on the reducer output shaft Keep the key flush with the front end of the output shaft (Ref 11)
(3) Slide the coupling (Ref 4) on the output shaft until it bottoms out on the shaft Leave the four (4) set screws loose as the coupling will have to be adjusted
(4) Remove the two (2) bolts added in preceding Step 5
(5) Place one (1) gear reducer bolt (Ref 8) in the top hole of the cylinder mounting plate
(6) Insert gear reducer into cylinder mounting plate and start top bolt (Ref 8) Do nol tighten completely Now insert the other bolts one at a time When all bolts are in tighten each boll
NOTE Due to very close tolerance between the gear reducer and cylinder mounting plate no alignment is required when Installing the reducer When the reducer bolts are tightened the reducer will seH-align with the cylinder
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
(7) Insert the beater shaft (Ref 2) with the shaft seal and blades into the cylinder and engage beater shaft in the drive coupling Place bushing on front of beater shaft
(8) Tape a dime (10 cents) to the back of the dispensing head in the very center at the point where the beater shaft touches the dispensing head The dime is used to acquire the proper end play setting on the drive coupling which is approximately 332
(9) Place the dispensing head into the cylinder and tighten with the hand knobs Important make sure hand knobs are tight and head is against the end of the cylinder tube
(10) Slide the drive coupling (Ref 4) forward until it is tight against the beater shaft and lock into place the four (4) set screws (Ref n
(11) Remove the dime from the back of the dispensing head
(12) Replace the drive belts
(13) Turn on electrical power
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
23
PANEL BREAKDOWN - 917CAB
~--~
3
REF PART No 1A 114544 1B 112991 2A 136075 2B 136102
3A 137027 3A 137028
3A 136105 3B 136103
3B 134817 4 134818
4 136101 5A 114780
5A 113570 5B 112967
6 112960 7 133291
24 A 917CAB only
I
dJ
DESCRIPTION Frame ssmiddoty Frame ASsmiddoty Lower Side Panel Lower Side Panel LH Side Panel RH Side Panel Upper Side Panel Upper Side Panel Upper Side Panel Rear Panel Rear Panel Top Cover ASsmiddoty Top Cover ASsmiddoty Top Cover ASsmiddoty Filler Panel ASsmiddoty Top Filler Strip
B bull 44 CAB only
~
[At 16 lt0
REF 8
9 10 11 12 12A 13
14 15 16 16A
Air Cooled only
PART No DESCRIPTION 132687 Dispense Panel 134247-01 Dispense Panel Cab-W
Drip Tray (See Pg 35) 114260-01 Door Assmiddoty wIHinges 132444-01 Left Hand Filler Strip 162045 Upper Hinge 162052 Spring LH 162046 Lower Hinge 160026 Screw 160020 Bolt 160139 Washer 110205 Syrup Jar Enclosure 160563-01 Door Gasket 01-Groove) 159174 Drip Tray Button 160293 Clip for Button
Water Cooled only
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
~~
1 ~~o ~o
)
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REF PART No DESCRIPTION REF PART No DESCRIPTION 1 114538 Frame Assy 10 162045 bull Upper Hinge 2 136289 Side Panel LH lOA 162052 Spring LH 3 136313 Rear Panel 11 162046 Lower Hinge 4 114006 Top Panel AC llA 160026 Screw 4A 114428 Top Panel WC l1B 160020 Bolt 4B 114157 Top Panel AC Remote l1C 160139 Washer 5 113983 Front Panel Assy 927CAB 12 136216 Side Panel RH 5A 113985 Front Panel Assy 957cAB 13 160563 Door Gasket (V-Groove) 6 130021 Rear Corner Channel RH 14 159174 Drip Tray Button 6A 135254 Rear Corner Channel LH 14A 160293 Clip for Button 7 137228 Dispensing Panel 162108 Stop Pin (Screw In) 8 Drip Tray (See Pg 35) 136199 Door Pull 9 114260 Door Assy wHinges
25
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
SOFT SERVE CAB ELECTRICAL BOX
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 Contactor (Order By Freezer 5 150463 Selector Switch
Serial Number) 6 159235 Toggle Switch (Pump) 2 Overload (Order By Freezer 7 150456 Spigot Switch
Serial Number) 7A 136124 Button - Spigot Switch 2A Heater Coil (Order By Freezer 7B 162302 Spring - Spigot Switch
Serial Number) 8 150553 Pilot Light - Amber 3 Starter (Order By Freezer 9 150552 Pilot Light - Red
Serial Number) 10 161026 Thermometer (Not Shown) 4 150208 Timer
26
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Pointed u
- - --- -
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prifllcl If USA
In-
ca ~ Q ltC wr w I
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SOFT-SERVE - SINGLE HEAD CAB
REF PART No 1 151351
2 3 4 5 6 151044
151052 7
8 155039 9 155400 10 155117
11 151084
12A 159021 13 155401 13A 155423 14 155403 15 155422
16 154976 16 154975 17 159203 18 155051 19 112901
155410 20 155044
151348
DESCRIPTION Capacitor Relay Assembly (single phase)
150247 Start Capacitor
150249 Run Capacitor 150245 Relay Motor Capacitors (order by freezer serial no) Gear Reducer (see gear reducer breakdown page 36) Driven Pulley (order by freezer serial no) Belt (order by freezer serial no) Motor 1-phase 230 volt Motor 3-phase 208230 volt Driver Pulley (order by freezer serial no)
Water Condenser Automatic Expansion Valve (Cylinder) Air Condenser
Condenser Fan Motor
Condenser Fan Blade High Pressure Cut-Out shyHigh Pressure Cut-Out shyLow Pressure Cut-Out Solenoid Valve
Compressor 230160
AC WC
Compressor 208-230360 Sight Glass Drier (38) Receiver Tank Assembly Water Valve (not shown) Service Valve Compressor Mounting Kit
Note I) lt0 For All 50-Cycle Freezers Order By Freezer Serial Number
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Printad I usA
30
c W -I o o o a w ~ 3
III
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w gta w en u o en
SOFT-SERVE - DOUBLE CAB - WATER COOLED REF PART No DESCRIPTION 1 155026 Water Condenser (B-side) 1 A 155039 Water Condenser (A-side) 2 159203 Sight Glass 3 155051 Drier (38) 4 155400 Automatic Expansion Valve (Cylinder) 5 Gear Reducer (see gear reducer breakdown page 36) 6 155410 Water Valve 7 155423 High Pressure Cut-Out 8 155403 Low Pressure Cut-Out 9 154976 Compressor 230160
151351 Capacitor Relay Assembly (Single Phase) 150247 Start Capacitor 150249 Run Capacitor 150245 Relay
9A 154975 Compressor 208-230360~-11 NOT USED ON THIS MODEL 12 155442 Low Temp Control 13 Driven Pulley (order by freezer serial no) 14 Belt (order by freezer serial no) 15 Driver Pulley (order by freezer serial no) 16 155422 Solenoid Valve 17 151044 Motor 1 phase 230 volt 17A 151052 Motor 3 phase 208230 volt 18 Motor Capacitors single phase only (order by freezer serial no)
Note For All 50-Cycle Freezers Order By Freezer Serial Number
cgt
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH _InU5A
32
c W J o o o -a oCt
aI oCt o W I m ) o c w gta w Ch t--LL o Ch
SOFTmiddotSERVE bull DOUBLE CAB - AIR COOLED REF PART No 1 155120 2 159020 3 151080 4 155400 5 6 159203 7 155051 8 112901 9 151044 9A 151052 10 11 12 14 154976
14A 154975 15 155401 16 155403 17 155443 18 155442 19
21 155422
DESCRIPTION Condenser Fan Blade Fan Motor Automatic Expansion Valve (Cylinder) Reducer (see gear reducer breakdown page 36) Sight Glass Drier Receiver Assembly Motor 1-Phase 230 Volt Motor 3-Phase 208230 Volt Driven Pulley (order by freezer serial no) Belt (ordr by freezer serial no) Driver Pulley (order by freezer serial no) Compressor 230160 151351 Capacitor Relay Assembly (Single Phase)
150247 Start Capacitor 150249 Run Capacitor 150245 Relay
Compressor 208-230360 High Pressure Cut-Out Low Pressure Cut-Out Cabinet Thermostat Low Temp Thermostat NOT USED ON THIS MODEL Motor Capacitors single phase only (order by freezer serial no) Solenoid Valve
Note For All 50-Cycle Freezers Order By Freezer Serial Number
Vl Vl
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prinled In USA
CAB PARTS BREAKDOWN
REF PART No DESCRIPTION PART No DESCRIPTION 1 155109 Cabinet Coil 136297 Condensate Pan (Not Shown) 1A 155113 Motor Cabinet Fan 196092 Mix Tank 7-12 Gal 1B 155099 Fan Blade Cabinet Coil 113997 Front Lid Mix Container
7-12 Gal 136248-01 Rear Lid Mix Cont 7-12 Gal
10 155416 CAB Automatic Expansion 130092 Mix Tube Valve 196028 Mix Tank 10 Gal
137119 Probe 11 -1 4 shy1E 155114 Fan Grill amp Bracket 7-12 Gal Container 1F 155116 Knob 137119-01 Probe 10-34 shy2 113898 DPR Pump Less Motor 7-12 amp 10
(see pump breakdown Gal Container pg 38) 137119-02 Probe 10-14 shy
3 196061 Mix Hose (sold by the foot) 10 Gal Container 4 150416 Door Switch 137120 Base Probe Mtg 4A 114630 Actuator Door Switch 160500 O-Ring
(Not Shown) 114572 Hose Clamp (Not Shown) 5 150527 Retractable Cordset 34
MIg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prlmd UsA
MERCHANDISING ASSY
PART No 115108 115107
PART No
196107-01 196108-01 114610 114608 115132 199030
PART No 162105 162106 112978 158004 158021 158022 158078 158000 158056 158000A 158014 158014A 161000 158049
DESCRIPTION 2S Merchandiser-927-957-978CAB 24 Merchandiser-917CAB
DRIP TRAY
DESCRIPTION
24 Drip Tray-917CAB 26- Drip Tray-927-957-978CAB 24 Tray Insert-917CAD 26 Tray Insert-978CAB-927CAB 26 Tray Insert-957CAB Rubber Bumper (only)
DESCRIPTION Caster With Brake Caster Without Brake Leg-6 4 Cylinder Brush Mix Hose Brush 58 Dia w6 Ft Handle 14 Pump Brush Drain Tube Brush Petrol Gel (12 tube carton) Petrol Gel (6 tube carton) Pe1rol Gel (per tube) Stera Sheen (per case) Stera Sheen (per jar) Pocket Thermometer 1 Dial Z32 Overrun Scale
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SNAKE bull SLUSH
35
36
GEAR REDUCERS Order By Freezer Serial Number
Model 3 CB
153345 5-1 Ratio B side 153004 High Speed Cup ~ (2 ea required) 153005 High Speed Bearing (2 ea required) 153008 Slow Speed Cup (2 ea required) 153009 Slow Speed Bearing (2 ea required) 153052 Slow Speed Seal (2 ea required) 153054 High Speed Seal (2 ea required) 153313 Brass Gear 5-1 Ratio 153336 Slow Speed Shaft Only 5-1 Ratio 153316 Worm Gear On Shaft 5-1 Ratio 114873 Gasket Set
Model 4 CB
153342 10-1 Ratio A side 153343 10-1 Ratio B side
153014 High Speed Cup (2 ea required) 153015 High Speed Bearing (2 ea required) 153011 Slow Speed Cup (2 ea required) 153012 Slow Speed Bearing (2 ea required) 153051 Slow Speed Seal (2 ea required) 153053 High Speed Seal (2 ea required) 153349 Brass Gear 10-1 Ratio 153339 Slow Speed Shaft OnIy 10-1 Ratio 153347 Worm Gear on Shaft 10-1 Ratio 114874 Gasket Set
Winlwin Model
153341 Wintwin 10-1 Ratio A and B Side
153014 High Speed Cup (2 ea required) 153015 High Speed Bearing (2 ea required) 153011 Slow Speed Cup (2 ea required) 153012 Slow Speed Bearing (2 ea required) 153051 Slow Speed Seal (2 ea required) 153053 High Speed Seal (2 ea required) 153349 Brass Gear 153350 Slow Speed Shaft Only 153348 Worm Gear on Shaft 11 4874 Gasket Set
158055 Gear Reducer OU 51001
Drive Coupling (Order By Machine Serial Number)
Mfg by H C DUKE amp SON INC bull 2115 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
917 amp 927 Beater Shaft Assembly
957 Beater Shaft
Item Part No Description
1 196079 Bushing-Cylinder 2 114752 Beater-Assy Long (Shaft) 3 137334 Blade-Scraper Soft Serve 4- 160500 O-Ring (Shaft Seal) 5- 133098 Bushing (Washer-Shaft Seal) 6 160557 Seal-Beater Shaft
-Items 4-6 111875 Seal-Assy Shaft (Complete)
31
1 113438 2 196079 3 137334 4- 160500 5- 133098 6 160557
-Items 4-6 111875
Shaft-Assy Beater Bushing-Cylinder Blade-Scraper O-ring (Shaft Seal) Washer-Shaft Seal (Bushing) Seal-Beater Shaft (Cup)
Seal-Assy Shaft (Complete)
ao
DISPENSING HEAD
16
r
Q
--~
-----_
REF PART No DESCRIPTION Tl3o 6 119928- Door Assembly shy Complete (Items 7-14) 11637- 7 196688 Door shy Less Parts
a 134921 Spigot shy Less Extension 9 134922 Handle Extension shy Spigot
10 162624 Handle 11 159295 OmiddotRings shy Spigot (Lots of 5)12 159309 O-ring shy 4 - Door 13 196066 Air Relief Screw 14 160621 a-Ring shy Air Relief Screw (Lots of 5)15 136126 Rod - Spigot Switch shy 917 8 927 16 136798 HMdKnob
38
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illmols 61244
SUPERIOR QUAUlY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
Duke Soft Serve Freezer Models 917R and 927RN
5 -______
7
6
UPDATEDDispense Head Assembly
Item Part No
115130 1 116321 2 160583 3 115129 4 160562 5 136126 6 134921 SA 162624 68 134922 7 159295 8 160584 9 162625 9A 114341 10 196185 10A 137870 108 136713
116410
Includes items 1-4 6-8
Description
Head-Assy Dispense (Complete) Head-Assy wActualor O-ring (Head-4-inch) Bleeder-Assy (Air Relief Plug) O-ring (Bleeder-Assy) Rod-Spigot Switch Spigot-long Single Handle-Black Tapered Handle-Spigot (Stainless Steel) O-ring (Spigot) O-ring (Extension) Knob-Hand Stud-Assy Cylinder 1-15116 inch (not shown) Nouie-Slar Adapter (accessory) Adapter-Yogurt Nozzle (not shown) Extension-Spigot (accessory-cake not shown) Kit-Dispense Head Switch
( Use only original or authorized replacement parts with this freezer )
DISPENSING HEAD
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH uu
REF PART No 114765
1 196082 2 114313 3 137018 5 136618 6 162626 8 134499 9 162625
10 115129 11 136794 12 159309 13 159295 14 160562 15 136713 16 160584
DESCRIPTION Door Assy-Complete Door-Less Parts Spigot Assy-Side Spigot Only-Center Extension Only-Center Handle Stud-Handle Stop Hand Knob Air Re1ief-Assy Rod-Spigot Switch O-Ring-4-Door O-Ring-Spigot O-Ring-Air Relief Extension-Spigot a-Ring
39
40
PUMP MOTOR AND HOUSING ASSEMBLY SAFETY SWITCH ASSEMBLY
PRESSURE SWITCH ASSEMBLY ijreg~
I
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH IIIUaA
CAB DPR PUMP BREAKDOWN
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 196091 Pump Base 46 114009 Pump Cover 2 136088 Pump Support 47 113464 Base Bracket Assembly 3 150784 Strain Relief Bushing 48 135725 Stud 1-78 4 Power Cord 49 160131 516 Flatwasher 5 160075 10-24 x 38 Screw 50 160293 Speed Clip 6 135416 Cover Electric Box 51 135724 Button 7 160141 14 Lockwasher 52 160140 10 Lockwasher 8 160491 14-20 x 34 Socket Screw 53 135726 Stud 3 9 113497 Motor Cord 18-3 SJT 54 160109 10-24 Hex Nut 10 151127 Motor 40 RPM Soft Serve 55 135729 Switch Actuator 11 160023 14-20 x 1 Screw 56 135731 Stop - Max Pressure 12 153317 Half Moon Key 57 162315 Spring - Soft Serve 13 112925 Cam Drive Plate Assembly 58 160138 10 Flat Washer 14 160495 14-20 x 14 Set Screw 59 160304 10-24 Stop Nut 15 160369 Pin 60 150456 Pressure Switch 16 134614 Swing Clamp 61 135744 Insulator - Fiber 17 134521 Adjusting Clamp 62 160381 6-32 x 1 Socket Screw 18 160488 Thumb Screw 63 160393 6 Flatwasher 19 134604 Bearing Bushing 64 160146 6 Lockwasher 20 134602 Connecting Rod 65 160309 6-32 Hex Nut 21 134601 Piston 66 160006 6-32 x 14 Screw 22 159295 O-Ring 67 160001 8-32 x 38 Screw 23 134603 Wrist Pin 68 160470 8 Lockwasher 24 136089 Cylinder 69 150481 Circuit Breaker 25 199011 Washer Valve 70 135727 Switch Bracket 26 159282 O-Ring 71 136311 Spacer - Cover Switch 27 113839 Pump Valve Housing 72 160028 Truss Head Screw
Assembly (Metal) 14-20 x 34 SST 28 160582 O-Ring 73 160141 Lockwasher 14 29 199020 Sleeve Rubber 74 160104 Hex Nut 14-20 30 135793 Retainer Clip 75 136312 Button Guard 31 135791 Adapter Hose Outlet 76 160020 Hex Hd Cap Screw 32 160581 O-Ring 14-20 x 1 SST 33 135790 Piston 77 113869 Switch Bracket 34 162308 Spring Soft Serve 78 136110 Button Cover Switch 35 135792 Drain Port 79 162314 Spring 36 160611 O-Ring 80 150456 Switch Pump Safety 37 135896 Hose 24 81 135004 Switch Cover 38 160738 Hose Clamp 82 160296 Screw RH 39 136288 Keeper 6-32 x 1-14 40 160554 O-Ring 83 160146 Lockwasher 6 41 160368 Wing Nut Int Tooth 42 130054 Diaphragm Housing 84 160393 Flatwasher 6 43 199019 Diaphragm 85 160309 Hex Nut 6-32 44 196074 Air Tube-Curved 86 114572 Hose Clamp 45 163433 Air Meter - 20 87 160048 14-20 x 12 TRHM
(other sizes available) 88 160308 6-32 x 516 RDHM 89 114581 Circuit Breaker Bracket
Not Shown 90 163109 Stop Pivot 112791 DPR Pressure Gauge
41
Mfg by H C DUKE amp SON INC 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
42
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Unit does not operate 1 Fuse blown at main disconshy 1 Check fuse size check for low nect voltage if not within 10 of
nameplate rating install transformer or call power company
2 Beater motor out on overload 2 Press starter reset button and check for low voltage Check producllemperalure and overrun
3 Disconnected or broken wife 3 Check wiring and wire connecshyin electrical circuit lions repair or replace lead
wires as necessary
4 Faulty selector switch 4 Replace selector switch
5 Out on high pressure 5 Check for low waler supply or dirty air conden ser
6 Out on low pressure 6 Check limit control and freon charge
Compressor does not operate f Troubte in compressor con- I Refer to Trouble-Shootingshyor operates improperly densing circuit Compressor I Condensing
Circuit
2 Faulty capacitor assembly 2 Replace capaCitor assembly (Single phase only)
3 Faulty contactor 3 Replace contaclOr or pOints
Compressor operates but 1 Loose con neclion at motor 1 Tighten connection beater motor does not starter coil (electrical box)
2 Open starter coil 2 Replace coil
3 Faulty capacitor assembly 3 Replace capaCitor assembly (Single phase only)
Dispensed product too hard 1 Cylinder themostat erratic 1 Adjust thermo slat or replace or set too low
2 Faulty time delay relay 2 Replace time delay relay
3 Solenoid valve leaking 3 Replace solenoid valve
4 Low suction pressure 4 See chart on page 15 for adshyjustments
Leaking of mix from rear housshy 1 Damaged bealer shalt seal 1 Replace shaft seal or O-ring ing discharge tube to drip tray inside seal assy
Mig by H C DUKE amp SON INC bull 2116 Eighlh Avenue Easl Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Mix leaking at dispensing head 1 Faulty 4 O-Ring
2 Head not properly installed
1 Replace 4 O-Ring
2 Install head properly
Mix sours in cabinet 1 Cabinet thermostat setting too high
2 Cabinet thermostat detective
3 Cabinet solenoid valve deshyfective
4 Cabinet switch defective
5 Beater motor out on overshyload (cab side)
1 Adjust thermostat
2 Replace thermostat
3 Replace coil or solenoid
4 Replace cabinet switch
S Reset overload for beater motor See pg 42 unit does not operate
Cabinet too COld
Machine runs continually and Product continues to get colder
Compressor operates only when dispensing
Unit runs conMuously Product does nol reach 180 F temperature
6 Door sWitch defectIVe
1 Cabinet thermostat setting too low
2 Defective thermostat
3 Cabinet solenoid stuck open
4 Cabinet expansion valve set too low
1 Plunger switch out of adjustshyment
2 Su ction pressure too low
3 Defective plunger switch
4 Plunger switch rod engaged
5 Faulty time delay relay
6 Starter or relay contacts stuck
7 Faulty thermostat or bulb not deep enough in well
6 Replace door SWitch
1 Adjust thermostat
2 Replace thermostat
3 Replace solenoid
4 Adjust cabinet expansion valve (See pg 15)
1 Adjust plunger switch
2 Adjust expansion valve and check freon charge
3 Replace plunger switch
4 Close plunger completely
5 Replace time delay relay
I 6 Check contacts i
7 Check bulb location or replace thermostat
1 Cylinder themostat setting 1 Adjust thermostat or replace too high or thermostat deshyfective
1 Trouble in compressor I condensing system
2 ExpanSion valve setiing is too high
3 Low on refrigeranl
1 See Trouble-Shooling-CompressorI Condensing circuit
2 Adjust expansion valve
3 Check and repair leak and recharge
1
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE SLUSHbull
43
44
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Dispensed product too soft (Product temperature above 21 0 F)
1 Automatic expansion yalve incorrectly set or erratic in operation
-2 Leak in refrigeration system
resulting in little or no refrigeration
1 Adjust or replace expanSion valve
2 Pump down system or remove refrigerant charge repair leak evacuate and recharge
3 Excessive oil in system 3 Drain compressor to proper oil leyel pump down and flush system
4 Thermostat set too high taulty
or 4 Adiust thermostat or replace
Product dispenses slOWly out dispensing head
1 Reverse rotation 1 Change rotation to clockshywise from front of freezer
2 Dispensing speed adjustshyment boll too far down
2 Adjust bolt upward
3 Pum p problem 3 See pump Trouble-Shooting chart
4 Product too cold 4 See dispensed product too hard pg42
TROUBLE-SHOOTING CHART COMPRESSORICONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor will not start -hums intermittently (cycling on oyerload)
1 Improperly wired
2 Low line Yoltage
3 Open starting capacitor (single phase only)
4 High discharge pressure
1 Check wiring against diagram
2 Ask power company to increase YOltage to not less than 10 below nameplate rating or install transformer Check for inadequate wire size
3 Replace starting capacitor
4 CheCK water regulating valve setting Check water or air condenser and clean if necessary Make sure disshycharge shut-oft valve is open
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor starts but remains 1 Low line voltage 1 Ask power company to in start windings increase voltage to not less (Single phase only) than 10 below nameplate
rating or install transrormer
2 Improperly wired 2 Check wiring against drawing Check wire size
3 Running capacitor shorted 3 Check by disconnecting running capacitor
4 Starting capacitor weak 4 Check capacitor replace
5 High disCharge pressure 5 Check water regulating valve check water or air condenser and clean il necessary Check discharge shut-off valve
Starter burned out 1 Low line voltage 1 Ask power company to inshycrease voltage to not less than 10 below nameplate rating or install transformer
2 Excessive line voltage 2 Ask power company to reduce voltage to maximum of 10 over nameplate rating
Starting capacitors burn out 1 Voltage 100 low 1 Ask power company to (Single phase only) increase voltage to not less
than 10 below nameplate rating or install translonmer
2 Improper capacitor 2 Replace capacitor with properly rated capacitor as listed in manual
Running capacitors burn out 1 Excessive line voltage 1 Ask power company to reshy(Single phase only) duce line voltage to not more
than 10 above rating 01 motor
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
45
46
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Unit operates long or continuously
1 Shortage of gas
2 Dirty condenser
3 Moisture in system
4 Compressor failing
1 Repair leak and recharge
2 Clean condenser
3 Evacuate and recharge system
4 Check compressor lor proper pressures If inadequate replace compressor
Head pressure too high 1 Refrigerant overcharge
2 Air in system
3 Dirty condenser (air cooled)
4 Unit location too warm (air cooled)
5 Restricted water cooled condenser
6 Water turned off or defective
1 Purge system
2 Purge system evacuate and recharge
3 Clean condenser
4 Relocate unIt away from restriction Place nothing against back or on top of unit
5 Clean or replace condenser
6 Turn on water Or replace water regulating valve regulating valve
Head pressure too low 1 Shortage 01 refrigerant 1 Repair leak and recharge
2 Water regulating valve open 2 Adjust regulating valve too wide
Water 1I0wing through water 1 Water regulating valve 1 Replace water regulating valve waste line when unit is not in operation
defective
Noisy compressor 1 Tubing raUle 1 Bend tubes away from contact
NOTE Refer to warranty card prior to compressor replacement
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING DPR PUMP
TROUBLE PROBABLE CAUSE REMEDY
Pump will not run 1 Pump cover removed 1 Install pump cover
2 Pressure switch actuating 2 Free bulton-check spring and
bulton stuck open (in) pressure switch alignment
3 Pressure switch burned out 3 Replace pressure switch
4 Starting switch in motor bad 4 Install new starting switch
5 Motor burned out 5 Replace motor
6 Circuit breaker kicked out 6 Allow to re- set Replace it or faulty circuit breaker will not
automatically re-set
Motor runs-cam drive plate 1 Loose cam drive plate 1 Tighten set screw in cam will not turn drive plate Check woodruff key
2 Gear stripped 2 Replace gear
Pump will not shut off Mix 1 Pressure swilch actuating 1 Free button-check pressure shoots out pressure relief bulton stuck closed (out) switch alignment
2 Pressure switch stuck in 2 Replace pressure switch closed position
3 Pressure switch assy out 3 Using pressure gauge adjust of adjustment pressure
4 Dirty or plugged diaphragm 4 Disassemble and clean housing (Ref 42) housing
5 Defective O-Ring on 5 Replace O-Ring pressure relief piston
Pump will not prime 1 Insufficient supply of mix 1 Replenish mix supply
2 Piston O-ring defective-no 2 Replace piston O-Ring and suction lubricate
3 Washer valve not sealing 3 Replace washer valve DO NOT LUBRICATE
Pump primes No pressure in 1 Sleeve (Rei 29) not sealing 1 Replace sleeve DO NOT cylinder properly LUBRICATE
2 Loose hose connection on 2 Install or tighten hose clamp pump valve housing (Ref 27)
Mix shoots out Of air intake line 1 Washer valve (Ref 25) 1 Replace washer valve-DO not sealing properly NOT LUBRICATE
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOfT SERVE bull SHAKE bull SLUSH
47
48
TROUBLE-SHOOTING DPR PUMP
Too much air overrun too high-popping problems
Product dispenses slowly out of disPenSing head
1 Air meter too large (Ref 45)
2 Air leak befween mix conshytainer and mix inlet
3 Air line hose crackedshysucking air (Ref 44)
4 Pump pressure too lowshycylinder not full
1 Pump pressure too low
2 PrOduct too cold
3 Low overrun
Diaphragm housing leaking mix 1 Diaphragm housing loose
2 Diaphragm defective
Piston drive assy noisy 1 Bushing bearing worn
2 Defective gear in gear motor
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SIfAKE bull SLUSH
REMEDY
1 Replace washer valve-DO NOT LUBRICATE
2 Install clamp on hose
1 Replace O-Ring and LUBRIshyCATE
1 Clean or replace air meter
2 Replace tube
1 Install smaller air meier
2 Repair as needed
3 Replace air line hose
4 Using pressure gauge adjust pressure switch
1 Using pressure gauge adjust pump pressure
2 Check product temperatureshyshould be about 18 F
3 Check meter-if plugged-clean
1 Tighten wing nuls (Ref 41)
2 Replace diaphragm (Ref 43)
1 Replace bushing bearing (Ref 19)
2 Replace gear
TROUBLE
Mix inlet hose loses prime
Mix on top of piston
PROBABLE CAUSE
1 Washer valve (Ref 25) not sealing properly
2 Mix inlet hose loose
1 Piston O-Ring leaking (Ref 22)
No Air (Overrun) 11 Ai r meter plugged (Ref I 45)
2 Curved air tube pinched
--
DPR PUMP aI
PART NO 199019(i) PART NO 199020 reg DIAPHRAGM RUBBER SLEEVE
PART NO159295 PART NO 159282reg O-RING O-RING0
PART NO 160581reg O-RING
o PART NO PART NO
PART NO199011() 160611(8) 160582 WASHER VALVE O-RING O-RING
PISTON
cJ
DIAPHRAGM HOUSING
CYLINDER
VALVE HOUSIN6 ASSEMBLY
PUUPOUTLET
DRAIN PORT
I PHNO309-755-4553 O-RING CHART HCDUKEampSONINC I
1 I84Z08 SOFT SERVE DISPENSING HEADS I
o PART NO 1605620
PAR~159--1b
PART NO PART NO 1605841 59295()
I PHNO 309-755-4553 O-R ING CHART HCDUKEampSONINC I
- Cover
- Table of Contents
- Safety
- Uncrating amp Inspection13
- Explanation of Electrical Controls
- Operation of Machine
- General Information
- Maintenance amp Adjustment
- Parts Breakdowns
- Trouble-Shooting Charts
- O-ring Charts
-
ELECTRICAL SPECIFICATIONS
REFER TO NAMEPlATE ON REAR OF FREEZER FOR ELECTRICAL SPECIFICATIONS
AIR COOLED MODELS
When installing self contained air cooled CAB models remember that the flow of air is from right to left through the upper portion of ttle machine-This means that you cannot have any obstruction on either side of the machine A minimum of six (6) inches clearance on either side is required Anything in this area will reduce the efficiency of these models
When installing all other air cooled cab models remember that the flow of air can either be from the sides through the top panel or from the rear through the top panel In each case a minimum of six (6) clearance must be maintained on either the side panels or the rear panel and the top panel must be free from obstructions Anything (including cone dispensers) in this area will reduce the efficiency of these models
WATER COOLED MODELS
Water cooled Single CAB models will require a 38 MPT water inlet and water waste connection
Water cooled Double CAB models will require a 12 MPT water inlet and water waste connection Both units are tied together so that one water inlet and one water waste is all that is required
All water connections are found on the bottom under the compressor mounting area and are clearly tagged-HWater Inlet and Water Waste It is suggested that a manual shut off valve be installed in the water inlet line at the time of installation
WARNING
DISCONNECT MAIN POWER SUPPLY AND WATER SUPPLY BEFORE BLOWING WATER OUT OF THE CONDENSER
CAUTION ALL WATER COOLED MODELS MUST HAVE CONDENSERS BLOWN OUT IF EXPOSED TO BELOW FREEZING TEMPERATURES AIR PRESSURE OF AT LEAST 20 LBS SHOULD BE PUT THROUGH THE WATER LINES STARTING INSIDE THE WATER VALVE IT IS RECOMMENDED THAT A QUALIFIED REFRIGERATION TECHNICIAN DO THIS
NOTE The water waste connection should be checked periodically to ensure water is not running when the freezer is not in operation
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
5
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ELECTRICAL SEfIIIlCE
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TOP Of UNl r MUST BE KEPT CLEAR TO ALLOW AIR EXHAUST
26
bull
-1f2 MPT WAiER
- Y2 MPT WATfR OUT (WATER C(X)lED UNITS otaX)
ALL CONNECTIONS ARE MADE THROuWi eOTTOtt OF FREEZER
EXPLANATION OF ELECTRICAL CONTROLS SOFT SERVE CAB ELECTRICAL CONTROLS
The fotrowing is an explanation of each switch across the front of the machine
PUSH TO RESETmiddot Your machine is equipped with an electrical overload system so the beater motor is protected against burn out if your machine is stopped by the overload it will be necessary to push the reset button before it will start again If this happens frequently your machine should be checked for proper voltage or any unusual cause of strain on the beater motor
SELECTOR SWITCHmiddot This is a three position switch that controls the following operations
CLEANOUT (to the left) operates the beater motor only This position should be used in all cleaning and sanitizing operations OFF (Center Position) turns off the cylinder refrigeration and the beater motor AUTOMATIC (to the right) activates the cylinder refrigeration the beater motor and refrigeration to cabinet This is the normal operating position for both day and night operation
MIX PUMP SWITCH bull Controls the DPR pump located in the refrigerated mix storage cabinet Turn this switch to the left ON position for operation and to the right OFF position for disassembling cleaning and night operation
THERMOSTAT SWITCHmiddot Controls the day and night refrigeration cycles The DAY position to the left activates the low temperature refrigeration system and allows the beater motor to operate The NIGHT poSition to the right switches the refrigeration system to a medium temperature holding cycle
CABINET SWITCH bull Controls the cabinet refrigeration The cabinet refrigeration is on when the switch is turned to the left and off when turned to the right Cabinet is automatically on when the selector switch is in the AUTO position
TIMERmiddot is a quick freeze switch Turning the timer will bypass the thermostat forcing the compressor and beater motor to operate The timer can be used for quick start ups in the morning or for fast recovery when large portions are dispensed
CAUTION EXCESSIVE USE OF THE TIMER CAN CAUSE YOUR MACHINE TO FREEZE UP USE ONLY WHEN NECESSARY
RED PILOT LIGHT
When this light is on it is an indication that the compressor is running This can only be on when the Selector Switch is in the AUTO position This light should never be on when anything but approved product is in the freezer (never on when water sanitizer or milkstone remover is in the freezer)
AMBER PILOT LIGHT
When this light is on the agitator drive motor is running This may be on when the Selector Switch is in the CLEAN or AUTO position Whenever the red pilot light is on the amber should also be on
DIAL THERMOMETER
This is an indication of the approximate temperature of the evaporator It should be viewed as an indication of how well the freezer is operating Once familiar with the normal operating measurement (usually between 5 and 15 deg) it is easier to detect unusual or abnormal functions of the freezer Observation of the thermostat often during each day 01 operation is a goOd habit for all operators This is not a measurement of prOduct temperature
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline lInol5 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SWSH PrioMd Ull II
6
CAUTION SWITCHES 1 2 and 4 DO NOT SHUT OFF THE SUPPLY OF POWER TO THE MACHINE THIS ONLY PREVENTS THE CONTROLS FROM OPERATING IF ANY
A ELECTRICAL REPAIRS ARE REQUIRED DISCONNECT THE MAIN POWER SUPPLY TO THE MACHINE AT THE CONTROL PANEL OR FUSE PANEL
PLUNGER SWITCHmiddot This switch only works in the day mode when the selector switch is in the AUTO position When the dispensing handle is pulled down the plunger switch rod raises and engages the plunger switch to turn on the beater motor and compressor The plunger switch activates the time delay and overrides the thermostat When the dispensing plunger is returned to the closed position the machine will continue to run for 12 seconds on the time delay and will then turn off unless the termostat requires additional refrigeration
DISPENSING SPEED ADJUSTMENT
WARNING
A MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFF POSImiddot TION AND THAT THE MAIN POWER SUPPLY IS DISCONNECTED
All soft serve machines have a dispensing speed adjustment To make this adjustment it is necessary to remove the merchandiser and cover from in front of the electrical box Upon removal of this panel you will see the plunger switch mounting bracket (see page 26) At the top of this bracket is the adjusting screw After loosening the lock nut adjust the screw as required The further down you turn this screw the slower the product will come out If you do this with patience you can adjust the machine to the point where the unit cannot be outdrawn (turn to a product that is too soft)
CAUTION ADJUSTING THE SCREW TOO FAR DOWN CAN CAUSE THE MACHINE TO FREEZE UP
TEST OF INSTALLATION
Remove the dispensing head and beater shaft (See Washing Instructions) so that the unit can be tested Turn on the pump switch (pump cover must be in place) to insure that the pump is running turn switch off Turn the following switches on in this order (1) Thermostat switch DAY (2) Cabinet Switch ON and (3) selector switch AUTOMATIC Let the unit run and at this pOint check beater rotation (clockwise from front) frost line in cylinder (front to back) and cabinet refrigeration Allow the unit to run until it shuts of automatically Should you have a short cycle (machine turns on then off every 10 or 15 seconds) check the water inlet manual valve Insufficient supply of water to the machine will give you this short cycle After the machine turns off automatically turn the selector and cabinet refrigeration switch OFF Cabinet refrigeration system will not operate when cabinet door is open
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Molme illinOIS 61244
SUPERIOR QUALIlY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
OPERATION OF MACHINE DISASSEMBLY AND WASHING
Your Soft Serve machine has been completely tested at the factory It is important that the machine be dismantled washed and lubricated before operation
CAUTION ALL CONTROL SWITCHES MUST BE IN THE OFF POSITION AND THE MAIN POWER SUPPLY DISCONNECTED FOR DISASSEMBLY AND REASSEMBLY BE SURE THE MACHINE IS DEPRESSURIZED BEFORE PROCEEDING (See page 13)
Refer to pages 37 38 and 39
Remove the plunger switch rod by lifting this rod up and swinging the bottom portion out and then pulling down Place the plunger switch rod on the drip tray Remove the two hand knobs and pull the head assembly straight out You will find that this is tight as there is an a-ring on this head Remove lever pin pull out handle and plunger
Remove cylinder bushing and pull out the beater shaft holding the knives as you do so Remove rear seal from shaft Take the head and beater shaft assemblies to the washing area Wash all parts thoroughly in a warm detergent solution and then rinse Wash the drain tube and cylinder using the brushes supplied
NOTE Do not dry any parts - reassemble them wet or allow to air dry
NOTE All O-rings must be removed in order to properly wash parts
Remove the DPR Pump from the cabinet in the bottom of the freezer Details on this are given in the pump section of this manual on pages 9-10 following
LUBRICATION AND REASSEMBLY
NOTE We recommend using Petrol Gel or equivalent
Lubricate the a-ring inside the rear seal Place it on the shaft so cup side will be against back of freezing cylinder DO NOT LUBRIGA TE THE GRAY RUBBER SEAL This seal is held under tension against the back of the cylinder when the beater and door are in place The cup seal remains stationary while the shaft turns freely in the plastic bushing Place both blades on the beater shaft and slide the beater into the cylinder Make sure the blades are installed properly The portion of the blade containing 2 knobs should face away from the cylinder walls When inserting the beater place the rear blade on the bottom of the cylinder This will center the beater and allow alignment with the drive coupling Push the beater shaft in and rotate until beater is engaged in the drive coupling The front of the beater shaft when engaged in coupling should be about 12 inside the cylinder Lubricate the inside surface of the cylinder bushing and install in cylinder
CAUTION ALWAYS MAKE SURE THAT THE BEATER BUSHING IS ON THE FRONT OF THE BEATER SHAFT OPERATION WITH A MISSING OR BADLY WORN BEATER BUSHING WILL DAMAGE THE BEATER AND CYLINDER
Lubricate the a-rings on the dispensing plunger and insert the plunger half way into the head Insert the plunger handle and lock in place with the lever pin Lubricate the 4 a-ring and slide the head assembly over the two cylinder studs Replace the two hand knobs and tighten the head on the cylinder DO NOT overtighten the knobs If leakage occurs check the 4 a-ring Replace the plunger switch rod
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALllY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
9
10
DPR PUMP OPERATION AND MAINTENANCE A CAUTION ALL CONTROL SWITCHES MUST BE IN THE OFF POSITION AND THE MAIN POWER SUPPLY DISCONNECTED FOR DISASSEMBLY AND REASSEMBLY
DISASSEMBLY
Step 1 - Reference DPR pump breakdown pages 40 and 41 for assistance in identificashytion of pump parts and their associated reference numbers If the pump has been in operation be sure that it is depressurized before proceeding to step 2
Step 2 - Remove attached mix hoses and pump cover (Ref 46)
Step 3 - loosen the thumb screw (Ref 18) and swing away the clamp (Ref 16) Carefully remove the entire pump assembly from the pump support (Ref 2)
Step 4 - Remove wing nuts diaphragm housing and diaphragm (Ref 41 42 and 43)
Step 5 - Further disassemble the pump by removing the piston assembly including the piston connecting rod and wrist pin (Ref 20 21 and 23) Separate the wrist pin and connecting rod from the piston Remove the curved air tube air meter outlet hose adapter and cylinder (Ref 24 31 44 and 45) from the valve housing assembly (Ref 27)
Step 6 - Grasp the outlet hose adapter asembly (Ref 31) and remove the keeper (Ref 39) while pressing inward on the drain port (Ref 35) Carefully lift and remove retainer clip (Ref 30) Caution must be exercised when removing the retainer clip as the relief mechanism parts (Ref 33 34 and 35) are spring loaded Remove the piston spring and drain port
Step 7 - Remove all a-rings rubber sleeve (Ref 29) and washer valve (Ref 25) All parts disassembled in steps 2 through 7 should be washed thoroughly in a solution of mild detergent and water not exceeding 120deg F Rinse all parts
NOTE All O-rings must be removed in order to properly wash parts
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Mohne illinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
LUBRICATION AND REASSEMBLY
Reassemble by reversing the steps on page 10 and lubricate as follows
When replacing the flat rubber washer (Ref 25) DO NOT LUBRICATE Important -This rubber washer acts as the air and mix check valve and must lie flat against the top of the pump valve housing Install it over the mushroom cap and move it around to make sure that it is sealed Ins~n the sleeve (Ref 29) Like the washer valve this should not be lubricated and fits on the pump valve housing with the tapper to the bottom
All the O-rings on the pump should be lubricated lightly The O-ring on the piston (Ref 21) should be lubricated liberally as this is the major wearing O-ring and must provide a good seal
Install the O-ring and spring on the piston (Ref 33) Lightly lubricate the O-ring (only enough to make it shiny) Install the piston with the O-ring end in first Lubricate the O-ring on the drain port and install it in the adapter Push in on the drain port and slide the clamp over the top to lock it in place Place the keeper (Ref 39) over the exposed end of the drain port and install the hose and clamp on the drain port Install the pressure switch diaphragm in the diaphragm housing
The pressure switch diaphragm (Ref 43) requires no lubrication
Install the diaphragm housing and diaphragm on the two studs and tighten wing nuts hand tight Install the pump assembly on the bracket-drive assembly in the refrigerated cabinet The shoulder of the white bushing (Ref 19) faces the drive cam (Ref 13) when slid into place properly Be sure to insert the mix output body (Ref 31) over the diaphragm housing (Ref 42) Return swing and adjusting clamp to closed position and tighten thumb screw Replace mix hoses and tighten all hose clamps
NOTE The pump will not operate without the cover (Ref 46) in place
WARNING
MAKE SURE ALL HOSE CONNECTIONS AND THE SWING A CLAMP ARE TIGHT BEFORE PRESSURIZING MACHINE THIS SYSTEM PRODUCES 30-32 PSI DURING NORMAL OPERATION
11
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH PrIntId USA
12
SANITIZING INSTRUCTIONS
The washing and sanitizing instructions explained in this manual are required to maintain a clean sanitary machine Your Soft Serve machine should be disassembled cleaned and sanitized to insure the best possible product and machine operation
Prepare a solution of sanitizing water (for each barrel) in a 2-3 gallon container (Solution should be 200 PPM chlorine using Diversol or equivalent) Place the container in the refrigerated cabinet and insert the mix inlet hoSe or stainless steel mix tube in the sanitizer Turn the pump switch ON (located at front of machine) and allow the pump to build up pressure and shut off automatically Turn the selector switch to the CLEAN OUT position and allow the beater to run for 5 minutes This insures the sanitizing solution touching all of the internal parts Placing a container under the dispensing head release the solution from the cylinder by depressing the dispensing handle Do this slowly as the cylinder is under 30 pounds pressure HINT Remove serrated nozzle (Ref 2) for this operation Sanitize nozzle and install when mix is ready to be dispensed Leave the dispensing handle down until the pump has forced all or most all of the solution through the machine When completed turn the selector switch and pump switch OFF You are now ready to start your freezer
You are working with a pressurized machine Always check for possible leaks when sanitizing your machine A leak around the head is obvious and usually calls for the replacement of the dispensing head O-rings A leak in the shaft seal will flow out of the drain tube just below the dispensing head This usually requires the replacement of the shaft seal or shaft seal O-ring Any leakage in the pump would require that the O-ring be replaced at the point of leakage
NOTE Sanitizing is always done prior to starting the machine Never sanitize the day belore and let the machine sit overnight
START UP INSTRUCTIONS
After sanitizing immediately fitl the container with mix Place the mix inlet hose or stainless steel mix tube in the container of mix (If you are using a plastic bag container supshyplied by the dairy it is recommended that you notch the plastic hose or use a perforated mix can tube so that the bag cannot be drawn into the mix inlet restricting the flow of mix If not careful a hole can be made in the bag) Sanitizer will remain in the pump mix hose and cylinder Turn the pump switch on starting the pump and depress the dispensing handle opening the dispensing plunger Leave the dispensing plunger open until you receive
pure mix at the nozzle The mix will push the remaining sanitizer out of the machine if the plunger is left open Close the plunger after removing all remaining sanitizer (See page 20)
After the cylinder is pressurized and the pump has shut off place the selector switch in the AUTOMATIC position At this pOint make sure the cabinet switch is at the ON position and the thermostat switch is at the DAY position Allow the machine to cycle and freeze down Normally several refrigeration cycles will be needed before a frozen product can be dispensed
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
It is impossible to start the freezer and not have excess air in the cylinder Since you have air in the cylinder and the pump is also adding air to the mix on first start up you will have air pockets in the cylinder These pockets can be eliminated if after two or three cycles you will turn the selector switch to the OFF position Pump switch must be at ON position With the selector switch off slowly open the dispensing plunger and bleed off the excess air until liquid mix comes out the dispensing head Close dispensing handle allow the cylinder to fill and turn selector switch to AUTOMATIC At least 30 minutes cycling time should be allowed to insure a ready produ~l
CLEANING PROCEDURE - DRAINING MACHINE
Place selector switch on the front of the machine to CLEAN OUT and let the beater run for about five minutes This will allow the product in the cylinder to soften up Place a clean sanitized container under the dispensing nozzle and very slowly draw off the semishyfrozen cream until liquid mix appears at the nozzle Remove the stainless steel mix tube or mix hose from the mix container Leave the dispensing plunger open until all the mix has run out of the cylinder and place the container in the cooler for storage Place the mix inlet hose in a container of cold water allow the cylinder to pressurize and flush the machine with the selector switch on CLEAN OUT Follow with a container of warm water until machine is rinsed clean Place the selector switch and pump to OFF Refer to disassembly instructions (Ref page 9)
WARNING
YOUR SOFT SERVE MACHINE OPERATES ON 30-32 POUNDS PRESmiddot A SURE NEVER DISMANTLE ANY PART OF THE MACHINE UNLESS THE MACHINE HAS BEEN DEPRESSURIZED THE SELECTOR
SWITCH IS IN THE OFF POSITION AND THE MAIN POWER SUPPLY HAS BEEN DISCONNECTED DEPRESSURIZE THE CYLINDER BY OPENING THE SPIGOT WITH THE PUMP SWITCH IN THE OFF POSITION
CLEANING MIX HOSE
The CAB models use the DPR mix pump You must disconnect the mix hoses and clean them thoroughly USing a long handle brush and a suitable cleanersanitizer you must brush the interior of the mix hose to insure there is no build up of product on the walls of the hose Water temperature for this cleaning process should be 1800 F to meet some health codes After reassembly pump sanitizer through the hoses
Mfg by H C DUKE amp SON INC 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
13
14
GENERAL INFORMATION OVERRUN ADJUSTMENT
The overrun on your CAB machine equipped with a DPR pump is regulated by the air meter (Item 45-pump parts breakdown) You are supplied with three air metering plugs each containing a different size orifice The smaller the hole the lower the overrun The larger the hole the higher the overrun The orifice or hole in this air meter must be open at all times It is the only source of air into the freezing cylinder Check this daily
The mix will be a determining factor as to the amount of overrun you will be able to achieve Some mixes will accept more air than others thus regulating the size of air meter you can use Test to see which air meter will give you the best overrun and the best tasting shake Run each air meter for one day until you make the determination You may have a slightly higher overrun when you first start up the machine When the machine has run long enough to dispense at least one full cylinder of product you will have the overrun that the machine wil hold the remainder of the day
ADJUSTING PUMP PRESSURE
Only to be performed by a qualified service technician
A WARNING
DISCONNECT MAIN POWER SUPPLY BEFORE REMOVING PANELS
NOTE The pump will not operate without the cover in place
The DPR Pump is controlled by pressure in the mix line acting on the diaphragm (Ref 43) As the pump fills the freezer cylinder with mix pressure builds causing the diaphragm to expand As the diaphragm expands it contacts the button (Ref 51) which in turn depresses the pump pressure switch (Ref 60) The pressure switch button moves inward until the switch is opened turning off the pump motor When product is drawn from the freezer the diaphragm closes the pump pressure switch allowing the pump motor to restart Pump pressure will check the same with air mix or water We suggest the pressure be checked with air pressure only
Step 1 - Remove the rear panel from machine and the pump electrical box cover (Ref 6)
Step 2 - Locate the pressure adjusting nut (Ref 59) Turn the adjusting nut clockwise to increase pressure or counterclockwise to decrease pressure Usually one half turn of the adjusting nut will raise or lower the pressure of the model DPR pump two (2) PSIG
Step 3 - Install a quality pressure gauge in the mix output line Turn main power supply and pump switch to ON pOSition Caution Electrical power present through entire machine Allow the pump to pressurize until it shuts off automatically Observe the gauge pressure reading and disconnect main power supply Repeat the adjustment steps 1 through 3 until the proper pressure is obtained (30 to 32 PSIG) Reinstall the electrical box cover and rear panel
NOTE Pressure tine must be at least 6 fI long in order to obtain an accurate reading
A Pressure Gauge PIN 112791 may be purchased from your local distributor
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
PRESSURE RELIEF ASSEMBLY
The model DPR Pump incorporates a self contained safety pressure relief system The parts included in this assembly are (Ref 30 through 39) Any discharge of mix through the hose (Ref 37) is an indication of excessive pump pressure For corrective action refer to the trouble shooting section of this manual
REFRIGERATION SETTINGS
A WARNING
DISCONNECT MAIN POWER SUPPLY BEFORE REMOVING PANELS
The CAB Soft Serve machine contains two types of temperature control devices the expansion valve and the thermostat (explained in Thermostat Section) The expansion valve meters the flow of refrigerant to the cylinder and must be set correctly to give you maximum production
To locate the expansion valve remove the side panel On the single head CAB machines remove the right side panel The double head machines will have an expansion valve behind both right and left side panels
The expansion valve should only be adjusted by a refrigeration technician with refrigeration test gauges connected to the compressor Adjustments to the valve are shown in the following chart
REFRIGERATION SETTINGS MODEL TYPE OF COOUNG WATER AIR 917CAB 927CAB 957iAa I
Cyl Suction Pressure Rmiddot502 15middot17 (PSIG) 15-17 (PSIG)
9711CAS Cyl Suction Pressure R-502 15middot17 (PSIG) 15middot17 (PSIG)
ALL SOFT SERVE
CABS
Cab Suction Pressure Rmiddot502 Head Pressure Thermostat Differential
8middot10 (PSIG) 230-240 (PSIG)
17degmiddot22deg 7deg~8c
8-10 (PSIG) 230middot315 (PSIG)
17deg_22deg 7c -8deg
NOTE To correctly set the cylinder expansion valve the cabinet thermostat switch An must be in the OFF position (Full counterclockwise) with the compressor running
NOTE To correctly set the cabinet expansion valve the selector switch must be in the OFF position and the cabinet switch in the ON position (With the compressor running)
A refrigeration test gauge must be used when adjusting the suction pressure To reduce the suction pressure turn the adjustment screw on the expansion valve counterclockwise Do not turn more than 14 turn at a time Let the unit operate a sufficient length of time - at least two minutes - to properly read on the gauge the adjustment made
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline illinOIS 61244
SUPERIOR QUAUTY FREEZERS bull SOFt SERVE bull SHAKE bull SLUSH
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16
THERMOSTATS
A WARNING
DISCONNECT MAIN POWER SUPPLY BEFORE REMOVING PANELS
Thermostat Au is the cabinet refrigeration thermostat The cabinet thermostat operates off of both the day and night switch operation to maintain 44 0 F or lower in the mix storage cabinet This thermostat can be adjusted by rotating the adjustment knob To set this thermostat colder turn the adjustment knob clockwise
CYLINDER THERMOSTAT
The cylinder thermostat is located behind the right side panel (on single head CABs) faCing the front of the machine On the double head CABs like the expansion valve a cylinder thermostat is located behind both the right and left side panels This control has two settings The first is the differential which should be set on 7-8deg F The other side of the control marked HIGH EVENT should be set between 17-220 F
The purpose of the cylinder thermostat is to maintain an 18deg F product during idle periods If the thermostat is set too cold and product is not drawn out of the machine a freeze up condition will result DO NOT run the product below 17deg F
NOTE The settings on the thermostat are ONLY to be used as a guide
For a correct adjustment a thermometer must be used to check the actual product temperature Each thermostat should be set in the field for the product being used Most of the time a temperature setting of between 18deg and 19deg F will maintain a satisfactory product Once the thermostat is set for the mix used it should require no further adjustment
MIg by H C DUKE amp SON INC 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH P~IIIIUSA
THERMOSTAT_________ Turn knob clockwise to make product colder
Differential adjustment
copy
COLDER ~ reg
copy5
2 6Igt
1 7 OFF
copy
THIS ASSEMBLY USED ON LEFT SIDE OF UNIT
RIGHT SIDE USES THIS ASSEMBLY WIO THERMOSTAT A (CAB THERMOSTAT)
MIg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
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18
MAINTENANCE AND ADJUSTMENT
ONLY TO BE PERFORMED BY A QUALIFIED SERVICE TECHNICIAN
WARNING
MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFF POSITION AND THAT THE MAIN POWER SUPPLY IS DISCONNECTED BEFORE REMOVING PANELS
LUBRICATION INSTRUCTIONS
FAN MOTOR (Air Condenser) Lubricate annually with SAE 10 motor oil in the oil cups
CAUTION DO NOT OVER-LUBRICATE OVER-LUBRICATION CAN DAMAGE MOTOR
GEAR REDUCER The gear reducers are heavy duty worm-geared units manufactured to HC Duke specifications II traces 01 oil are found in the immediate area around the reducer repair the leak (usually an oil seal) and check the oil level When adding oil use only synthetic gear lube in the reducer
NOTE This is a special oil and will not mix with a petroleum base oil Contact your distributor when this oil is needed This oil should be changed at least once a year
OIL LEVEL PLUG
PROPER OIL LEVEL
OIL DRAIN USE SPECIAl PLUG OIL ONLY
USE SPECIAL LOILON=LY-- I
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH ~1U8A
MAINTENANCE AND ADJUSTMENT ONLY TO BE PERFORMED BY A QUALIFIED SERVICE TECHNICIAN
WARNING
MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFFA POSITION AND THAT THE MAIN POWER SUPPLY IS DISCONNECTED BEFORE REMOVING PANELS shy
BEATER MOTOR Beater motors are either single or three phase Capacitor starting is used on the single phase units The beater motor should be inspected and cleaned
WATER COOLED CONDENSER Depending on the condition of your water the condenser on your CAB machine may require cleaning from time to time Usually a restricted flow of water resulting in a high head pressure indicates a dirty condenser The condenser should be flushed out with an acid solution by a qualified service technician
AIR COOLED CONDENSERS At least once a month the face area of the condenser should be inspected for accumulation of dirt and dust Surface dust and dirt can usually be removed with a stiff brush andor vacuum cleaner After brushing hold a light between the fan blades and look through the condenser from the opposite side This procedure will locate those areas where accumulated dirt has lodged between the condenser fins To clean these areas obtain a small tank of nitrogen or C02 with a needle control valve or pressure regulator with a small hose attached and proceed as follows
(1) Place a damp towel or cloth over the face area of the condenser
(2) Open the control valve or regulator on the tank releasing pressure to the coil from the back side cleaning the condenser
(3) Check the condenser periodically with the light and continue the treatment until the fins are clean
For maximum performance replace all worn O-Rings Seals Blades etc
CAUTION USE ORIGINAL OR AUTHORIZED REPLACEMENT PARTS ONLY WITH THIS FREEZER
Mig by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline illinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
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PULLEY ALIGNMENT AND BELT TENSION ONLY TO BE PERFORMED BY A QUALIFIED SERVICE TECHNICIAN
WARNING
A MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFF POSITION AND THAT THE MAIN POWER SUPPLY IS DISCONNECTED
Remove the side panels to expose the pulleys and belts
Check the alignment of the beater motor pulley and gear reducer pulley by placing a straight edge across the faces of the two pulleys If the pulleys are not aligned adjust as necessary until proper alignment is obtained
Depress the belts with a finger at a point midway between the two pulleys When properly adjusted the belts should depress 12 from its normal position with approximately 5 pounds of pressure If the belts are too tight or too loose adjust as necessary until proper belt deflection is obtained Loosen four (4) bolts which hold the motor mounting plate to the frame With these loose adjust tension bolt in or out as required to obtain proper belt tension Retighten bolts
BELTS
Periodically inspect the belts If they are worn excessively replace both belts For best results it is advisable to replace both belts as they are manufactured in matched sets
SCRAPER BLADES
NOTE Be sure to purge all of the sanitizer from the mix system before operating the freezer (see page 12) Failure to completely remove sanitizer or water trom the freezing cylinder before placing the machine in the Automatic position may cause blade breakage and damage the freezer
o o
NEW BlADE WORN BLADE
Replace blades if worn 316 or more
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
END PLAY FOR BEATER DRIVE COUPLING
It is very important that the drive coupling located on the gear reducer be set properly Referring to the Drive Coupling Illustration the following procedure should be followed in setting the end play
WARNING
MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFF POSITION AND THAT THE ELECTRICAL POWER TO THE MACHINE IS DISCONNECTED SO THAT THE UNIT WILL NOT OPERATE
------
DRIVE COUPLING ILLUSTRATION
REF DESCRIPTION REF DESCRIPTION 1 Gear Reducer 6 Reducer Mounting Plate 2 Beater Shaft 7 Set Screws 3 Shaft Seal 8 Bolt Gear Reducer 4 Drive Coupling 9 Bolt Reducer Mounting Plate 5 Spacer 10 Key
11 Output Shaft
Improper drive coupling spacing will damage the beater shaft dispensing head and drive coupling When checking end play settings or replacing a coupling proceed as follows
REMOVING COUPLING
WARNING
DISCONNECT MAIN POWER SUPPLY
Mig by H C DUKE amp SON INC bull 2116 Eighth Allenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SO SERVE bull SHAKE bull SLUSH
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22
(1) Remove Beater Shaft (Ref 2)
(2) Remove both drive belts (not shown)
(3) Remove gear reducer bolts (Ref 8) Six (6) bolts are located around the face of the reducer
NOTE Remove the top bolt last holding the bottom of the reducer as you do so
(4) Remove the gear reducer (Ref 1) and place-on table or bench
(5) Replace two (2) bolts (Ref 8) one (1) at the top and one (1) at the bottom so that the reducer cover will not come off while the coupling is changed
(6) Loosen the four (4) set screws (Ref 7) and remove the drive coupling (Ref 4) Should the coupling be stuck tight to the ouput shaft lightly tap the coupling from the back with a hammer and bar Sometimes due to age this coupling will stick so tight it will have to be removed with a pulley removing tool or a wheel puller
(7) Remove the key (Ref 10)
INSTALLING THE NEW COUPLING
(1) Clean gear reducer output shaft (Ref 11) with fine emery cloth and slide the new drive coupling on the reducer shaft The coupling should slide on the shaft all the way without the key If the coupling doesnt slide completely on check both coupling and reducer shaft for burrs When a smooth sliding fit is achieved remove coupling and proceed with final assembly
(2) Place key (Ref 10) in keyway slot on the reducer output shaft Keep the key flush with the front end of the output shaft (Ref 11)
(3) Slide the coupling (Ref 4) on the output shaft until it bottoms out on the shaft Leave the four (4) set screws loose as the coupling will have to be adjusted
(4) Remove the two (2) bolts added in preceding Step 5
(5) Place one (1) gear reducer bolt (Ref 8) in the top hole of the cylinder mounting plate
(6) Insert gear reducer into cylinder mounting plate and start top bolt (Ref 8) Do nol tighten completely Now insert the other bolts one at a time When all bolts are in tighten each boll
NOTE Due to very close tolerance between the gear reducer and cylinder mounting plate no alignment is required when Installing the reducer When the reducer bolts are tightened the reducer will seH-align with the cylinder
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
(7) Insert the beater shaft (Ref 2) with the shaft seal and blades into the cylinder and engage beater shaft in the drive coupling Place bushing on front of beater shaft
(8) Tape a dime (10 cents) to the back of the dispensing head in the very center at the point where the beater shaft touches the dispensing head The dime is used to acquire the proper end play setting on the drive coupling which is approximately 332
(9) Place the dispensing head into the cylinder and tighten with the hand knobs Important make sure hand knobs are tight and head is against the end of the cylinder tube
(10) Slide the drive coupling (Ref 4) forward until it is tight against the beater shaft and lock into place the four (4) set screws (Ref n
(11) Remove the dime from the back of the dispensing head
(12) Replace the drive belts
(13) Turn on electrical power
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
23
PANEL BREAKDOWN - 917CAB
~--~
3
REF PART No 1A 114544 1B 112991 2A 136075 2B 136102
3A 137027 3A 137028
3A 136105 3B 136103
3B 134817 4 134818
4 136101 5A 114780
5A 113570 5B 112967
6 112960 7 133291
24 A 917CAB only
I
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DESCRIPTION Frame ssmiddoty Frame ASsmiddoty Lower Side Panel Lower Side Panel LH Side Panel RH Side Panel Upper Side Panel Upper Side Panel Upper Side Panel Rear Panel Rear Panel Top Cover ASsmiddoty Top Cover ASsmiddoty Top Cover ASsmiddoty Filler Panel ASsmiddoty Top Filler Strip
B bull 44 CAB only
~
[At 16 lt0
REF 8
9 10 11 12 12A 13
14 15 16 16A
Air Cooled only
PART No DESCRIPTION 132687 Dispense Panel 134247-01 Dispense Panel Cab-W
Drip Tray (See Pg 35) 114260-01 Door Assmiddoty wIHinges 132444-01 Left Hand Filler Strip 162045 Upper Hinge 162052 Spring LH 162046 Lower Hinge 160026 Screw 160020 Bolt 160139 Washer 110205 Syrup Jar Enclosure 160563-01 Door Gasket 01-Groove) 159174 Drip Tray Button 160293 Clip for Button
Water Cooled only
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
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REF PART No DESCRIPTION REF PART No DESCRIPTION 1 114538 Frame Assy 10 162045 bull Upper Hinge 2 136289 Side Panel LH lOA 162052 Spring LH 3 136313 Rear Panel 11 162046 Lower Hinge 4 114006 Top Panel AC llA 160026 Screw 4A 114428 Top Panel WC l1B 160020 Bolt 4B 114157 Top Panel AC Remote l1C 160139 Washer 5 113983 Front Panel Assy 927CAB 12 136216 Side Panel RH 5A 113985 Front Panel Assy 957cAB 13 160563 Door Gasket (V-Groove) 6 130021 Rear Corner Channel RH 14 159174 Drip Tray Button 6A 135254 Rear Corner Channel LH 14A 160293 Clip for Button 7 137228 Dispensing Panel 162108 Stop Pin (Screw In) 8 Drip Tray (See Pg 35) 136199 Door Pull 9 114260 Door Assy wHinges
25
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
SOFT SERVE CAB ELECTRICAL BOX
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 Contactor (Order By Freezer 5 150463 Selector Switch
Serial Number) 6 159235 Toggle Switch (Pump) 2 Overload (Order By Freezer 7 150456 Spigot Switch
Serial Number) 7A 136124 Button - Spigot Switch 2A Heater Coil (Order By Freezer 7B 162302 Spring - Spigot Switch
Serial Number) 8 150553 Pilot Light - Amber 3 Starter (Order By Freezer 9 150552 Pilot Light - Red
Serial Number) 10 161026 Thermometer (Not Shown) 4 150208 Timer
26
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Pointed u
- - --- -
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prifllcl If USA
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SOFT-SERVE - SINGLE HEAD CAB
REF PART No 1 151351
2 3 4 5 6 151044
151052 7
8 155039 9 155400 10 155117
11 151084
12A 159021 13 155401 13A 155423 14 155403 15 155422
16 154976 16 154975 17 159203 18 155051 19 112901
155410 20 155044
151348
DESCRIPTION Capacitor Relay Assembly (single phase)
150247 Start Capacitor
150249 Run Capacitor 150245 Relay Motor Capacitors (order by freezer serial no) Gear Reducer (see gear reducer breakdown page 36) Driven Pulley (order by freezer serial no) Belt (order by freezer serial no) Motor 1-phase 230 volt Motor 3-phase 208230 volt Driver Pulley (order by freezer serial no)
Water Condenser Automatic Expansion Valve (Cylinder) Air Condenser
Condenser Fan Motor
Condenser Fan Blade High Pressure Cut-Out shyHigh Pressure Cut-Out shyLow Pressure Cut-Out Solenoid Valve
Compressor 230160
AC WC
Compressor 208-230360 Sight Glass Drier (38) Receiver Tank Assembly Water Valve (not shown) Service Valve Compressor Mounting Kit
Note I) lt0 For All 50-Cycle Freezers Order By Freezer Serial Number
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Printad I usA
30
c W -I o o o a w ~ 3
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w gta w en u o en
SOFT-SERVE - DOUBLE CAB - WATER COOLED REF PART No DESCRIPTION 1 155026 Water Condenser (B-side) 1 A 155039 Water Condenser (A-side) 2 159203 Sight Glass 3 155051 Drier (38) 4 155400 Automatic Expansion Valve (Cylinder) 5 Gear Reducer (see gear reducer breakdown page 36) 6 155410 Water Valve 7 155423 High Pressure Cut-Out 8 155403 Low Pressure Cut-Out 9 154976 Compressor 230160
151351 Capacitor Relay Assembly (Single Phase) 150247 Start Capacitor 150249 Run Capacitor 150245 Relay
9A 154975 Compressor 208-230360~-11 NOT USED ON THIS MODEL 12 155442 Low Temp Control 13 Driven Pulley (order by freezer serial no) 14 Belt (order by freezer serial no) 15 Driver Pulley (order by freezer serial no) 16 155422 Solenoid Valve 17 151044 Motor 1 phase 230 volt 17A 151052 Motor 3 phase 208230 volt 18 Motor Capacitors single phase only (order by freezer serial no)
Note For All 50-Cycle Freezers Order By Freezer Serial Number
cgt
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH _InU5A
32
c W J o o o -a oCt
aI oCt o W I m ) o c w gta w Ch t--LL o Ch
SOFTmiddotSERVE bull DOUBLE CAB - AIR COOLED REF PART No 1 155120 2 159020 3 151080 4 155400 5 6 159203 7 155051 8 112901 9 151044 9A 151052 10 11 12 14 154976
14A 154975 15 155401 16 155403 17 155443 18 155442 19
21 155422
DESCRIPTION Condenser Fan Blade Fan Motor Automatic Expansion Valve (Cylinder) Reducer (see gear reducer breakdown page 36) Sight Glass Drier Receiver Assembly Motor 1-Phase 230 Volt Motor 3-Phase 208230 Volt Driven Pulley (order by freezer serial no) Belt (ordr by freezer serial no) Driver Pulley (order by freezer serial no) Compressor 230160 151351 Capacitor Relay Assembly (Single Phase)
150247 Start Capacitor 150249 Run Capacitor 150245 Relay
Compressor 208-230360 High Pressure Cut-Out Low Pressure Cut-Out Cabinet Thermostat Low Temp Thermostat NOT USED ON THIS MODEL Motor Capacitors single phase only (order by freezer serial no) Solenoid Valve
Note For All 50-Cycle Freezers Order By Freezer Serial Number
Vl Vl
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prinled In USA
CAB PARTS BREAKDOWN
REF PART No DESCRIPTION PART No DESCRIPTION 1 155109 Cabinet Coil 136297 Condensate Pan (Not Shown) 1A 155113 Motor Cabinet Fan 196092 Mix Tank 7-12 Gal 1B 155099 Fan Blade Cabinet Coil 113997 Front Lid Mix Container
7-12 Gal 136248-01 Rear Lid Mix Cont 7-12 Gal
10 155416 CAB Automatic Expansion 130092 Mix Tube Valve 196028 Mix Tank 10 Gal
137119 Probe 11 -1 4 shy1E 155114 Fan Grill amp Bracket 7-12 Gal Container 1F 155116 Knob 137119-01 Probe 10-34 shy2 113898 DPR Pump Less Motor 7-12 amp 10
(see pump breakdown Gal Container pg 38) 137119-02 Probe 10-14 shy
3 196061 Mix Hose (sold by the foot) 10 Gal Container 4 150416 Door Switch 137120 Base Probe Mtg 4A 114630 Actuator Door Switch 160500 O-Ring
(Not Shown) 114572 Hose Clamp (Not Shown) 5 150527 Retractable Cordset 34
MIg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prlmd UsA
MERCHANDISING ASSY
PART No 115108 115107
PART No
196107-01 196108-01 114610 114608 115132 199030
PART No 162105 162106 112978 158004 158021 158022 158078 158000 158056 158000A 158014 158014A 161000 158049
DESCRIPTION 2S Merchandiser-927-957-978CAB 24 Merchandiser-917CAB
DRIP TRAY
DESCRIPTION
24 Drip Tray-917CAB 26- Drip Tray-927-957-978CAB 24 Tray Insert-917CAD 26 Tray Insert-978CAB-927CAB 26 Tray Insert-957CAB Rubber Bumper (only)
DESCRIPTION Caster With Brake Caster Without Brake Leg-6 4 Cylinder Brush Mix Hose Brush 58 Dia w6 Ft Handle 14 Pump Brush Drain Tube Brush Petrol Gel (12 tube carton) Petrol Gel (6 tube carton) Pe1rol Gel (per tube) Stera Sheen (per case) Stera Sheen (per jar) Pocket Thermometer 1 Dial Z32 Overrun Scale
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SNAKE bull SLUSH
35
36
GEAR REDUCERS Order By Freezer Serial Number
Model 3 CB
153345 5-1 Ratio B side 153004 High Speed Cup ~ (2 ea required) 153005 High Speed Bearing (2 ea required) 153008 Slow Speed Cup (2 ea required) 153009 Slow Speed Bearing (2 ea required) 153052 Slow Speed Seal (2 ea required) 153054 High Speed Seal (2 ea required) 153313 Brass Gear 5-1 Ratio 153336 Slow Speed Shaft Only 5-1 Ratio 153316 Worm Gear On Shaft 5-1 Ratio 114873 Gasket Set
Model 4 CB
153342 10-1 Ratio A side 153343 10-1 Ratio B side
153014 High Speed Cup (2 ea required) 153015 High Speed Bearing (2 ea required) 153011 Slow Speed Cup (2 ea required) 153012 Slow Speed Bearing (2 ea required) 153051 Slow Speed Seal (2 ea required) 153053 High Speed Seal (2 ea required) 153349 Brass Gear 10-1 Ratio 153339 Slow Speed Shaft OnIy 10-1 Ratio 153347 Worm Gear on Shaft 10-1 Ratio 114874 Gasket Set
Winlwin Model
153341 Wintwin 10-1 Ratio A and B Side
153014 High Speed Cup (2 ea required) 153015 High Speed Bearing (2 ea required) 153011 Slow Speed Cup (2 ea required) 153012 Slow Speed Bearing (2 ea required) 153051 Slow Speed Seal (2 ea required) 153053 High Speed Seal (2 ea required) 153349 Brass Gear 153350 Slow Speed Shaft Only 153348 Worm Gear on Shaft 11 4874 Gasket Set
158055 Gear Reducer OU 51001
Drive Coupling (Order By Machine Serial Number)
Mfg by H C DUKE amp SON INC bull 2115 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
917 amp 927 Beater Shaft Assembly
957 Beater Shaft
Item Part No Description
1 196079 Bushing-Cylinder 2 114752 Beater-Assy Long (Shaft) 3 137334 Blade-Scraper Soft Serve 4- 160500 O-Ring (Shaft Seal) 5- 133098 Bushing (Washer-Shaft Seal) 6 160557 Seal-Beater Shaft
-Items 4-6 111875 Seal-Assy Shaft (Complete)
31
1 113438 2 196079 3 137334 4- 160500 5- 133098 6 160557
-Items 4-6 111875
Shaft-Assy Beater Bushing-Cylinder Blade-Scraper O-ring (Shaft Seal) Washer-Shaft Seal (Bushing) Seal-Beater Shaft (Cup)
Seal-Assy Shaft (Complete)
ao
DISPENSING HEAD
16
r
Q
--~
-----_
REF PART No DESCRIPTION Tl3o 6 119928- Door Assembly shy Complete (Items 7-14) 11637- 7 196688 Door shy Less Parts
a 134921 Spigot shy Less Extension 9 134922 Handle Extension shy Spigot
10 162624 Handle 11 159295 OmiddotRings shy Spigot (Lots of 5)12 159309 O-ring shy 4 - Door 13 196066 Air Relief Screw 14 160621 a-Ring shy Air Relief Screw (Lots of 5)15 136126 Rod - Spigot Switch shy 917 8 927 16 136798 HMdKnob
38
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illmols 61244
SUPERIOR QUAUlY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
Duke Soft Serve Freezer Models 917R and 927RN
5 -______
7
6
UPDATEDDispense Head Assembly
Item Part No
115130 1 116321 2 160583 3 115129 4 160562 5 136126 6 134921 SA 162624 68 134922 7 159295 8 160584 9 162625 9A 114341 10 196185 10A 137870 108 136713
116410
Includes items 1-4 6-8
Description
Head-Assy Dispense (Complete) Head-Assy wActualor O-ring (Head-4-inch) Bleeder-Assy (Air Relief Plug) O-ring (Bleeder-Assy) Rod-Spigot Switch Spigot-long Single Handle-Black Tapered Handle-Spigot (Stainless Steel) O-ring (Spigot) O-ring (Extension) Knob-Hand Stud-Assy Cylinder 1-15116 inch (not shown) Nouie-Slar Adapter (accessory) Adapter-Yogurt Nozzle (not shown) Extension-Spigot (accessory-cake not shown) Kit-Dispense Head Switch
( Use only original or authorized replacement parts with this freezer )
DISPENSING HEAD
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH uu
REF PART No 114765
1 196082 2 114313 3 137018 5 136618 6 162626 8 134499 9 162625
10 115129 11 136794 12 159309 13 159295 14 160562 15 136713 16 160584
DESCRIPTION Door Assy-Complete Door-Less Parts Spigot Assy-Side Spigot Only-Center Extension Only-Center Handle Stud-Handle Stop Hand Knob Air Re1ief-Assy Rod-Spigot Switch O-Ring-4-Door O-Ring-Spigot O-Ring-Air Relief Extension-Spigot a-Ring
39
40
PUMP MOTOR AND HOUSING ASSEMBLY SAFETY SWITCH ASSEMBLY
PRESSURE SWITCH ASSEMBLY ijreg~
I
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH IIIUaA
CAB DPR PUMP BREAKDOWN
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 196091 Pump Base 46 114009 Pump Cover 2 136088 Pump Support 47 113464 Base Bracket Assembly 3 150784 Strain Relief Bushing 48 135725 Stud 1-78 4 Power Cord 49 160131 516 Flatwasher 5 160075 10-24 x 38 Screw 50 160293 Speed Clip 6 135416 Cover Electric Box 51 135724 Button 7 160141 14 Lockwasher 52 160140 10 Lockwasher 8 160491 14-20 x 34 Socket Screw 53 135726 Stud 3 9 113497 Motor Cord 18-3 SJT 54 160109 10-24 Hex Nut 10 151127 Motor 40 RPM Soft Serve 55 135729 Switch Actuator 11 160023 14-20 x 1 Screw 56 135731 Stop - Max Pressure 12 153317 Half Moon Key 57 162315 Spring - Soft Serve 13 112925 Cam Drive Plate Assembly 58 160138 10 Flat Washer 14 160495 14-20 x 14 Set Screw 59 160304 10-24 Stop Nut 15 160369 Pin 60 150456 Pressure Switch 16 134614 Swing Clamp 61 135744 Insulator - Fiber 17 134521 Adjusting Clamp 62 160381 6-32 x 1 Socket Screw 18 160488 Thumb Screw 63 160393 6 Flatwasher 19 134604 Bearing Bushing 64 160146 6 Lockwasher 20 134602 Connecting Rod 65 160309 6-32 Hex Nut 21 134601 Piston 66 160006 6-32 x 14 Screw 22 159295 O-Ring 67 160001 8-32 x 38 Screw 23 134603 Wrist Pin 68 160470 8 Lockwasher 24 136089 Cylinder 69 150481 Circuit Breaker 25 199011 Washer Valve 70 135727 Switch Bracket 26 159282 O-Ring 71 136311 Spacer - Cover Switch 27 113839 Pump Valve Housing 72 160028 Truss Head Screw
Assembly (Metal) 14-20 x 34 SST 28 160582 O-Ring 73 160141 Lockwasher 14 29 199020 Sleeve Rubber 74 160104 Hex Nut 14-20 30 135793 Retainer Clip 75 136312 Button Guard 31 135791 Adapter Hose Outlet 76 160020 Hex Hd Cap Screw 32 160581 O-Ring 14-20 x 1 SST 33 135790 Piston 77 113869 Switch Bracket 34 162308 Spring Soft Serve 78 136110 Button Cover Switch 35 135792 Drain Port 79 162314 Spring 36 160611 O-Ring 80 150456 Switch Pump Safety 37 135896 Hose 24 81 135004 Switch Cover 38 160738 Hose Clamp 82 160296 Screw RH 39 136288 Keeper 6-32 x 1-14 40 160554 O-Ring 83 160146 Lockwasher 6 41 160368 Wing Nut Int Tooth 42 130054 Diaphragm Housing 84 160393 Flatwasher 6 43 199019 Diaphragm 85 160309 Hex Nut 6-32 44 196074 Air Tube-Curved 86 114572 Hose Clamp 45 163433 Air Meter - 20 87 160048 14-20 x 12 TRHM
(other sizes available) 88 160308 6-32 x 516 RDHM 89 114581 Circuit Breaker Bracket
Not Shown 90 163109 Stop Pivot 112791 DPR Pressure Gauge
41
Mfg by H C DUKE amp SON INC 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
42
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Unit does not operate 1 Fuse blown at main disconshy 1 Check fuse size check for low nect voltage if not within 10 of
nameplate rating install transformer or call power company
2 Beater motor out on overload 2 Press starter reset button and check for low voltage Check producllemperalure and overrun
3 Disconnected or broken wife 3 Check wiring and wire connecshyin electrical circuit lions repair or replace lead
wires as necessary
4 Faulty selector switch 4 Replace selector switch
5 Out on high pressure 5 Check for low waler supply or dirty air conden ser
6 Out on low pressure 6 Check limit control and freon charge
Compressor does not operate f Troubte in compressor con- I Refer to Trouble-Shootingshyor operates improperly densing circuit Compressor I Condensing
Circuit
2 Faulty capacitor assembly 2 Replace capaCitor assembly (Single phase only)
3 Faulty contactor 3 Replace contaclOr or pOints
Compressor operates but 1 Loose con neclion at motor 1 Tighten connection beater motor does not starter coil (electrical box)
2 Open starter coil 2 Replace coil
3 Faulty capacitor assembly 3 Replace capaCitor assembly (Single phase only)
Dispensed product too hard 1 Cylinder themostat erratic 1 Adjust thermo slat or replace or set too low
2 Faulty time delay relay 2 Replace time delay relay
3 Solenoid valve leaking 3 Replace solenoid valve
4 Low suction pressure 4 See chart on page 15 for adshyjustments
Leaking of mix from rear housshy 1 Damaged bealer shalt seal 1 Replace shaft seal or O-ring ing discharge tube to drip tray inside seal assy
Mig by H C DUKE amp SON INC bull 2116 Eighlh Avenue Easl Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Mix leaking at dispensing head 1 Faulty 4 O-Ring
2 Head not properly installed
1 Replace 4 O-Ring
2 Install head properly
Mix sours in cabinet 1 Cabinet thermostat setting too high
2 Cabinet thermostat detective
3 Cabinet solenoid valve deshyfective
4 Cabinet switch defective
5 Beater motor out on overshyload (cab side)
1 Adjust thermostat
2 Replace thermostat
3 Replace coil or solenoid
4 Replace cabinet switch
S Reset overload for beater motor See pg 42 unit does not operate
Cabinet too COld
Machine runs continually and Product continues to get colder
Compressor operates only when dispensing
Unit runs conMuously Product does nol reach 180 F temperature
6 Door sWitch defectIVe
1 Cabinet thermostat setting too low
2 Defective thermostat
3 Cabinet solenoid stuck open
4 Cabinet expansion valve set too low
1 Plunger switch out of adjustshyment
2 Su ction pressure too low
3 Defective plunger switch
4 Plunger switch rod engaged
5 Faulty time delay relay
6 Starter or relay contacts stuck
7 Faulty thermostat or bulb not deep enough in well
6 Replace door SWitch
1 Adjust thermostat
2 Replace thermostat
3 Replace solenoid
4 Adjust cabinet expansion valve (See pg 15)
1 Adjust plunger switch
2 Adjust expansion valve and check freon charge
3 Replace plunger switch
4 Close plunger completely
5 Replace time delay relay
I 6 Check contacts i
7 Check bulb location or replace thermostat
1 Cylinder themostat setting 1 Adjust thermostat or replace too high or thermostat deshyfective
1 Trouble in compressor I condensing system
2 ExpanSion valve setiing is too high
3 Low on refrigeranl
1 See Trouble-Shooling-CompressorI Condensing circuit
2 Adjust expansion valve
3 Check and repair leak and recharge
1
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE SLUSHbull
43
44
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Dispensed product too soft (Product temperature above 21 0 F)
1 Automatic expansion yalve incorrectly set or erratic in operation
-2 Leak in refrigeration system
resulting in little or no refrigeration
1 Adjust or replace expanSion valve
2 Pump down system or remove refrigerant charge repair leak evacuate and recharge
3 Excessive oil in system 3 Drain compressor to proper oil leyel pump down and flush system
4 Thermostat set too high taulty
or 4 Adiust thermostat or replace
Product dispenses slOWly out dispensing head
1 Reverse rotation 1 Change rotation to clockshywise from front of freezer
2 Dispensing speed adjustshyment boll too far down
2 Adjust bolt upward
3 Pum p problem 3 See pump Trouble-Shooting chart
4 Product too cold 4 See dispensed product too hard pg42
TROUBLE-SHOOTING CHART COMPRESSORICONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor will not start -hums intermittently (cycling on oyerload)
1 Improperly wired
2 Low line Yoltage
3 Open starting capacitor (single phase only)
4 High discharge pressure
1 Check wiring against diagram
2 Ask power company to increase YOltage to not less than 10 below nameplate rating or install transformer Check for inadequate wire size
3 Replace starting capacitor
4 CheCK water regulating valve setting Check water or air condenser and clean if necessary Make sure disshycharge shut-oft valve is open
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor starts but remains 1 Low line voltage 1 Ask power company to in start windings increase voltage to not less (Single phase only) than 10 below nameplate
rating or install transrormer
2 Improperly wired 2 Check wiring against drawing Check wire size
3 Running capacitor shorted 3 Check by disconnecting running capacitor
4 Starting capacitor weak 4 Check capacitor replace
5 High disCharge pressure 5 Check water regulating valve check water or air condenser and clean il necessary Check discharge shut-off valve
Starter burned out 1 Low line voltage 1 Ask power company to inshycrease voltage to not less than 10 below nameplate rating or install transformer
2 Excessive line voltage 2 Ask power company to reduce voltage to maximum of 10 over nameplate rating
Starting capacitors burn out 1 Voltage 100 low 1 Ask power company to (Single phase only) increase voltage to not less
than 10 below nameplate rating or install translonmer
2 Improper capacitor 2 Replace capacitor with properly rated capacitor as listed in manual
Running capacitors burn out 1 Excessive line voltage 1 Ask power company to reshy(Single phase only) duce line voltage to not more
than 10 above rating 01 motor
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
45
46
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Unit operates long or continuously
1 Shortage of gas
2 Dirty condenser
3 Moisture in system
4 Compressor failing
1 Repair leak and recharge
2 Clean condenser
3 Evacuate and recharge system
4 Check compressor lor proper pressures If inadequate replace compressor
Head pressure too high 1 Refrigerant overcharge
2 Air in system
3 Dirty condenser (air cooled)
4 Unit location too warm (air cooled)
5 Restricted water cooled condenser
6 Water turned off or defective
1 Purge system
2 Purge system evacuate and recharge
3 Clean condenser
4 Relocate unIt away from restriction Place nothing against back or on top of unit
5 Clean or replace condenser
6 Turn on water Or replace water regulating valve regulating valve
Head pressure too low 1 Shortage 01 refrigerant 1 Repair leak and recharge
2 Water regulating valve open 2 Adjust regulating valve too wide
Water 1I0wing through water 1 Water regulating valve 1 Replace water regulating valve waste line when unit is not in operation
defective
Noisy compressor 1 Tubing raUle 1 Bend tubes away from contact
NOTE Refer to warranty card prior to compressor replacement
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING DPR PUMP
TROUBLE PROBABLE CAUSE REMEDY
Pump will not run 1 Pump cover removed 1 Install pump cover
2 Pressure switch actuating 2 Free bulton-check spring and
bulton stuck open (in) pressure switch alignment
3 Pressure switch burned out 3 Replace pressure switch
4 Starting switch in motor bad 4 Install new starting switch
5 Motor burned out 5 Replace motor
6 Circuit breaker kicked out 6 Allow to re- set Replace it or faulty circuit breaker will not
automatically re-set
Motor runs-cam drive plate 1 Loose cam drive plate 1 Tighten set screw in cam will not turn drive plate Check woodruff key
2 Gear stripped 2 Replace gear
Pump will not shut off Mix 1 Pressure swilch actuating 1 Free button-check pressure shoots out pressure relief bulton stuck closed (out) switch alignment
2 Pressure switch stuck in 2 Replace pressure switch closed position
3 Pressure switch assy out 3 Using pressure gauge adjust of adjustment pressure
4 Dirty or plugged diaphragm 4 Disassemble and clean housing (Ref 42) housing
5 Defective O-Ring on 5 Replace O-Ring pressure relief piston
Pump will not prime 1 Insufficient supply of mix 1 Replenish mix supply
2 Piston O-ring defective-no 2 Replace piston O-Ring and suction lubricate
3 Washer valve not sealing 3 Replace washer valve DO NOT LUBRICATE
Pump primes No pressure in 1 Sleeve (Rei 29) not sealing 1 Replace sleeve DO NOT cylinder properly LUBRICATE
2 Loose hose connection on 2 Install or tighten hose clamp pump valve housing (Ref 27)
Mix shoots out Of air intake line 1 Washer valve (Ref 25) 1 Replace washer valve-DO not sealing properly NOT LUBRICATE
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOfT SERVE bull SHAKE bull SLUSH
47
48
TROUBLE-SHOOTING DPR PUMP
Too much air overrun too high-popping problems
Product dispenses slowly out of disPenSing head
1 Air meter too large (Ref 45)
2 Air leak befween mix conshytainer and mix inlet
3 Air line hose crackedshysucking air (Ref 44)
4 Pump pressure too lowshycylinder not full
1 Pump pressure too low
2 PrOduct too cold
3 Low overrun
Diaphragm housing leaking mix 1 Diaphragm housing loose
2 Diaphragm defective
Piston drive assy noisy 1 Bushing bearing worn
2 Defective gear in gear motor
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SIfAKE bull SLUSH
REMEDY
1 Replace washer valve-DO NOT LUBRICATE
2 Install clamp on hose
1 Replace O-Ring and LUBRIshyCATE
1 Clean or replace air meter
2 Replace tube
1 Install smaller air meier
2 Repair as needed
3 Replace air line hose
4 Using pressure gauge adjust pressure switch
1 Using pressure gauge adjust pump pressure
2 Check product temperatureshyshould be about 18 F
3 Check meter-if plugged-clean
1 Tighten wing nuls (Ref 41)
2 Replace diaphragm (Ref 43)
1 Replace bushing bearing (Ref 19)
2 Replace gear
TROUBLE
Mix inlet hose loses prime
Mix on top of piston
PROBABLE CAUSE
1 Washer valve (Ref 25) not sealing properly
2 Mix inlet hose loose
1 Piston O-Ring leaking (Ref 22)
No Air (Overrun) 11 Ai r meter plugged (Ref I 45)
2 Curved air tube pinched
--
DPR PUMP aI
PART NO 199019(i) PART NO 199020 reg DIAPHRAGM RUBBER SLEEVE
PART NO159295 PART NO 159282reg O-RING O-RING0
PART NO 160581reg O-RING
o PART NO PART NO
PART NO199011() 160611(8) 160582 WASHER VALVE O-RING O-RING
PISTON
cJ
DIAPHRAGM HOUSING
CYLINDER
VALVE HOUSIN6 ASSEMBLY
PUUPOUTLET
DRAIN PORT
I PHNO309-755-4553 O-RING CHART HCDUKEampSONINC I
1 I84Z08 SOFT SERVE DISPENSING HEADS I
o PART NO 1605620
PAR~159--1b
PART NO PART NO 1605841 59295()
I PHNO 309-755-4553 O-R ING CHART HCDUKEampSONINC I
- Cover
- Table of Contents
- Safety
- Uncrating amp Inspection13
- Explanation of Electrical Controls
- Operation of Machine
- General Information
- Maintenance amp Adjustment
- Parts Breakdowns
- Trouble-Shooting Charts
- O-ring Charts
-
__
927CAB 917CAB
u
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~lECTR~~ 5pound1([
MAlle~ QTr
i L
i I
MODEL 978-CAB T(p OF uNIT MUSt
CUAH to AlliIN AIH
ElE(TRKAl SERVICE
(MAIN liNEIlOX I()lTAufj
f
--=-~][-
1
ALL CONNECTIONS ARE MADE THROU(H BOTTOU Of FRpoundpoundZfR
MODEL 9S7-CAB
ELECTRICAL SEfIIIlCE
(~~l ~r 1I L _J I I I
I --I ____________--_L
N
TOP Of UNl r MUST BE KEPT CLEAR TO ALLOW AIR EXHAUST
26
bull
-1f2 MPT WAiER
- Y2 MPT WATfR OUT (WATER C(X)lED UNITS otaX)
ALL CONNECTIONS ARE MADE THROuWi eOTTOtt OF FREEZER
EXPLANATION OF ELECTRICAL CONTROLS SOFT SERVE CAB ELECTRICAL CONTROLS
The fotrowing is an explanation of each switch across the front of the machine
PUSH TO RESETmiddot Your machine is equipped with an electrical overload system so the beater motor is protected against burn out if your machine is stopped by the overload it will be necessary to push the reset button before it will start again If this happens frequently your machine should be checked for proper voltage or any unusual cause of strain on the beater motor
SELECTOR SWITCHmiddot This is a three position switch that controls the following operations
CLEANOUT (to the left) operates the beater motor only This position should be used in all cleaning and sanitizing operations OFF (Center Position) turns off the cylinder refrigeration and the beater motor AUTOMATIC (to the right) activates the cylinder refrigeration the beater motor and refrigeration to cabinet This is the normal operating position for both day and night operation
MIX PUMP SWITCH bull Controls the DPR pump located in the refrigerated mix storage cabinet Turn this switch to the left ON position for operation and to the right OFF position for disassembling cleaning and night operation
THERMOSTAT SWITCHmiddot Controls the day and night refrigeration cycles The DAY position to the left activates the low temperature refrigeration system and allows the beater motor to operate The NIGHT poSition to the right switches the refrigeration system to a medium temperature holding cycle
CABINET SWITCH bull Controls the cabinet refrigeration The cabinet refrigeration is on when the switch is turned to the left and off when turned to the right Cabinet is automatically on when the selector switch is in the AUTO position
TIMERmiddot is a quick freeze switch Turning the timer will bypass the thermostat forcing the compressor and beater motor to operate The timer can be used for quick start ups in the morning or for fast recovery when large portions are dispensed
CAUTION EXCESSIVE USE OF THE TIMER CAN CAUSE YOUR MACHINE TO FREEZE UP USE ONLY WHEN NECESSARY
RED PILOT LIGHT
When this light is on it is an indication that the compressor is running This can only be on when the Selector Switch is in the AUTO position This light should never be on when anything but approved product is in the freezer (never on when water sanitizer or milkstone remover is in the freezer)
AMBER PILOT LIGHT
When this light is on the agitator drive motor is running This may be on when the Selector Switch is in the CLEAN or AUTO position Whenever the red pilot light is on the amber should also be on
DIAL THERMOMETER
This is an indication of the approximate temperature of the evaporator It should be viewed as an indication of how well the freezer is operating Once familiar with the normal operating measurement (usually between 5 and 15 deg) it is easier to detect unusual or abnormal functions of the freezer Observation of the thermostat often during each day 01 operation is a goOd habit for all operators This is not a measurement of prOduct temperature
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline lInol5 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SWSH PrioMd Ull II
6
CAUTION SWITCHES 1 2 and 4 DO NOT SHUT OFF THE SUPPLY OF POWER TO THE MACHINE THIS ONLY PREVENTS THE CONTROLS FROM OPERATING IF ANY
A ELECTRICAL REPAIRS ARE REQUIRED DISCONNECT THE MAIN POWER SUPPLY TO THE MACHINE AT THE CONTROL PANEL OR FUSE PANEL
PLUNGER SWITCHmiddot This switch only works in the day mode when the selector switch is in the AUTO position When the dispensing handle is pulled down the plunger switch rod raises and engages the plunger switch to turn on the beater motor and compressor The plunger switch activates the time delay and overrides the thermostat When the dispensing plunger is returned to the closed position the machine will continue to run for 12 seconds on the time delay and will then turn off unless the termostat requires additional refrigeration
DISPENSING SPEED ADJUSTMENT
WARNING
A MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFF POSImiddot TION AND THAT THE MAIN POWER SUPPLY IS DISCONNECTED
All soft serve machines have a dispensing speed adjustment To make this adjustment it is necessary to remove the merchandiser and cover from in front of the electrical box Upon removal of this panel you will see the plunger switch mounting bracket (see page 26) At the top of this bracket is the adjusting screw After loosening the lock nut adjust the screw as required The further down you turn this screw the slower the product will come out If you do this with patience you can adjust the machine to the point where the unit cannot be outdrawn (turn to a product that is too soft)
CAUTION ADJUSTING THE SCREW TOO FAR DOWN CAN CAUSE THE MACHINE TO FREEZE UP
TEST OF INSTALLATION
Remove the dispensing head and beater shaft (See Washing Instructions) so that the unit can be tested Turn on the pump switch (pump cover must be in place) to insure that the pump is running turn switch off Turn the following switches on in this order (1) Thermostat switch DAY (2) Cabinet Switch ON and (3) selector switch AUTOMATIC Let the unit run and at this pOint check beater rotation (clockwise from front) frost line in cylinder (front to back) and cabinet refrigeration Allow the unit to run until it shuts of automatically Should you have a short cycle (machine turns on then off every 10 or 15 seconds) check the water inlet manual valve Insufficient supply of water to the machine will give you this short cycle After the machine turns off automatically turn the selector and cabinet refrigeration switch OFF Cabinet refrigeration system will not operate when cabinet door is open
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Molme illinOIS 61244
SUPERIOR QUALIlY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
OPERATION OF MACHINE DISASSEMBLY AND WASHING
Your Soft Serve machine has been completely tested at the factory It is important that the machine be dismantled washed and lubricated before operation
CAUTION ALL CONTROL SWITCHES MUST BE IN THE OFF POSITION AND THE MAIN POWER SUPPLY DISCONNECTED FOR DISASSEMBLY AND REASSEMBLY BE SURE THE MACHINE IS DEPRESSURIZED BEFORE PROCEEDING (See page 13)
Refer to pages 37 38 and 39
Remove the plunger switch rod by lifting this rod up and swinging the bottom portion out and then pulling down Place the plunger switch rod on the drip tray Remove the two hand knobs and pull the head assembly straight out You will find that this is tight as there is an a-ring on this head Remove lever pin pull out handle and plunger
Remove cylinder bushing and pull out the beater shaft holding the knives as you do so Remove rear seal from shaft Take the head and beater shaft assemblies to the washing area Wash all parts thoroughly in a warm detergent solution and then rinse Wash the drain tube and cylinder using the brushes supplied
NOTE Do not dry any parts - reassemble them wet or allow to air dry
NOTE All O-rings must be removed in order to properly wash parts
Remove the DPR Pump from the cabinet in the bottom of the freezer Details on this are given in the pump section of this manual on pages 9-10 following
LUBRICATION AND REASSEMBLY
NOTE We recommend using Petrol Gel or equivalent
Lubricate the a-ring inside the rear seal Place it on the shaft so cup side will be against back of freezing cylinder DO NOT LUBRIGA TE THE GRAY RUBBER SEAL This seal is held under tension against the back of the cylinder when the beater and door are in place The cup seal remains stationary while the shaft turns freely in the plastic bushing Place both blades on the beater shaft and slide the beater into the cylinder Make sure the blades are installed properly The portion of the blade containing 2 knobs should face away from the cylinder walls When inserting the beater place the rear blade on the bottom of the cylinder This will center the beater and allow alignment with the drive coupling Push the beater shaft in and rotate until beater is engaged in the drive coupling The front of the beater shaft when engaged in coupling should be about 12 inside the cylinder Lubricate the inside surface of the cylinder bushing and install in cylinder
CAUTION ALWAYS MAKE SURE THAT THE BEATER BUSHING IS ON THE FRONT OF THE BEATER SHAFT OPERATION WITH A MISSING OR BADLY WORN BEATER BUSHING WILL DAMAGE THE BEATER AND CYLINDER
Lubricate the a-rings on the dispensing plunger and insert the plunger half way into the head Insert the plunger handle and lock in place with the lever pin Lubricate the 4 a-ring and slide the head assembly over the two cylinder studs Replace the two hand knobs and tighten the head on the cylinder DO NOT overtighten the knobs If leakage occurs check the 4 a-ring Replace the plunger switch rod
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALllY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
9
10
DPR PUMP OPERATION AND MAINTENANCE A CAUTION ALL CONTROL SWITCHES MUST BE IN THE OFF POSITION AND THE MAIN POWER SUPPLY DISCONNECTED FOR DISASSEMBLY AND REASSEMBLY
DISASSEMBLY
Step 1 - Reference DPR pump breakdown pages 40 and 41 for assistance in identificashytion of pump parts and their associated reference numbers If the pump has been in operation be sure that it is depressurized before proceeding to step 2
Step 2 - Remove attached mix hoses and pump cover (Ref 46)
Step 3 - loosen the thumb screw (Ref 18) and swing away the clamp (Ref 16) Carefully remove the entire pump assembly from the pump support (Ref 2)
Step 4 - Remove wing nuts diaphragm housing and diaphragm (Ref 41 42 and 43)
Step 5 - Further disassemble the pump by removing the piston assembly including the piston connecting rod and wrist pin (Ref 20 21 and 23) Separate the wrist pin and connecting rod from the piston Remove the curved air tube air meter outlet hose adapter and cylinder (Ref 24 31 44 and 45) from the valve housing assembly (Ref 27)
Step 6 - Grasp the outlet hose adapter asembly (Ref 31) and remove the keeper (Ref 39) while pressing inward on the drain port (Ref 35) Carefully lift and remove retainer clip (Ref 30) Caution must be exercised when removing the retainer clip as the relief mechanism parts (Ref 33 34 and 35) are spring loaded Remove the piston spring and drain port
Step 7 - Remove all a-rings rubber sleeve (Ref 29) and washer valve (Ref 25) All parts disassembled in steps 2 through 7 should be washed thoroughly in a solution of mild detergent and water not exceeding 120deg F Rinse all parts
NOTE All O-rings must be removed in order to properly wash parts
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Mohne illinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
LUBRICATION AND REASSEMBLY
Reassemble by reversing the steps on page 10 and lubricate as follows
When replacing the flat rubber washer (Ref 25) DO NOT LUBRICATE Important -This rubber washer acts as the air and mix check valve and must lie flat against the top of the pump valve housing Install it over the mushroom cap and move it around to make sure that it is sealed Ins~n the sleeve (Ref 29) Like the washer valve this should not be lubricated and fits on the pump valve housing with the tapper to the bottom
All the O-rings on the pump should be lubricated lightly The O-ring on the piston (Ref 21) should be lubricated liberally as this is the major wearing O-ring and must provide a good seal
Install the O-ring and spring on the piston (Ref 33) Lightly lubricate the O-ring (only enough to make it shiny) Install the piston with the O-ring end in first Lubricate the O-ring on the drain port and install it in the adapter Push in on the drain port and slide the clamp over the top to lock it in place Place the keeper (Ref 39) over the exposed end of the drain port and install the hose and clamp on the drain port Install the pressure switch diaphragm in the diaphragm housing
The pressure switch diaphragm (Ref 43) requires no lubrication
Install the diaphragm housing and diaphragm on the two studs and tighten wing nuts hand tight Install the pump assembly on the bracket-drive assembly in the refrigerated cabinet The shoulder of the white bushing (Ref 19) faces the drive cam (Ref 13) when slid into place properly Be sure to insert the mix output body (Ref 31) over the diaphragm housing (Ref 42) Return swing and adjusting clamp to closed position and tighten thumb screw Replace mix hoses and tighten all hose clamps
NOTE The pump will not operate without the cover (Ref 46) in place
WARNING
MAKE SURE ALL HOSE CONNECTIONS AND THE SWING A CLAMP ARE TIGHT BEFORE PRESSURIZING MACHINE THIS SYSTEM PRODUCES 30-32 PSI DURING NORMAL OPERATION
11
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH PrIntId USA
12
SANITIZING INSTRUCTIONS
The washing and sanitizing instructions explained in this manual are required to maintain a clean sanitary machine Your Soft Serve machine should be disassembled cleaned and sanitized to insure the best possible product and machine operation
Prepare a solution of sanitizing water (for each barrel) in a 2-3 gallon container (Solution should be 200 PPM chlorine using Diversol or equivalent) Place the container in the refrigerated cabinet and insert the mix inlet hoSe or stainless steel mix tube in the sanitizer Turn the pump switch ON (located at front of machine) and allow the pump to build up pressure and shut off automatically Turn the selector switch to the CLEAN OUT position and allow the beater to run for 5 minutes This insures the sanitizing solution touching all of the internal parts Placing a container under the dispensing head release the solution from the cylinder by depressing the dispensing handle Do this slowly as the cylinder is under 30 pounds pressure HINT Remove serrated nozzle (Ref 2) for this operation Sanitize nozzle and install when mix is ready to be dispensed Leave the dispensing handle down until the pump has forced all or most all of the solution through the machine When completed turn the selector switch and pump switch OFF You are now ready to start your freezer
You are working with a pressurized machine Always check for possible leaks when sanitizing your machine A leak around the head is obvious and usually calls for the replacement of the dispensing head O-rings A leak in the shaft seal will flow out of the drain tube just below the dispensing head This usually requires the replacement of the shaft seal or shaft seal O-ring Any leakage in the pump would require that the O-ring be replaced at the point of leakage
NOTE Sanitizing is always done prior to starting the machine Never sanitize the day belore and let the machine sit overnight
START UP INSTRUCTIONS
After sanitizing immediately fitl the container with mix Place the mix inlet hose or stainless steel mix tube in the container of mix (If you are using a plastic bag container supshyplied by the dairy it is recommended that you notch the plastic hose or use a perforated mix can tube so that the bag cannot be drawn into the mix inlet restricting the flow of mix If not careful a hole can be made in the bag) Sanitizer will remain in the pump mix hose and cylinder Turn the pump switch on starting the pump and depress the dispensing handle opening the dispensing plunger Leave the dispensing plunger open until you receive
pure mix at the nozzle The mix will push the remaining sanitizer out of the machine if the plunger is left open Close the plunger after removing all remaining sanitizer (See page 20)
After the cylinder is pressurized and the pump has shut off place the selector switch in the AUTOMATIC position At this pOint make sure the cabinet switch is at the ON position and the thermostat switch is at the DAY position Allow the machine to cycle and freeze down Normally several refrigeration cycles will be needed before a frozen product can be dispensed
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
It is impossible to start the freezer and not have excess air in the cylinder Since you have air in the cylinder and the pump is also adding air to the mix on first start up you will have air pockets in the cylinder These pockets can be eliminated if after two or three cycles you will turn the selector switch to the OFF position Pump switch must be at ON position With the selector switch off slowly open the dispensing plunger and bleed off the excess air until liquid mix comes out the dispensing head Close dispensing handle allow the cylinder to fill and turn selector switch to AUTOMATIC At least 30 minutes cycling time should be allowed to insure a ready produ~l
CLEANING PROCEDURE - DRAINING MACHINE
Place selector switch on the front of the machine to CLEAN OUT and let the beater run for about five minutes This will allow the product in the cylinder to soften up Place a clean sanitized container under the dispensing nozzle and very slowly draw off the semishyfrozen cream until liquid mix appears at the nozzle Remove the stainless steel mix tube or mix hose from the mix container Leave the dispensing plunger open until all the mix has run out of the cylinder and place the container in the cooler for storage Place the mix inlet hose in a container of cold water allow the cylinder to pressurize and flush the machine with the selector switch on CLEAN OUT Follow with a container of warm water until machine is rinsed clean Place the selector switch and pump to OFF Refer to disassembly instructions (Ref page 9)
WARNING
YOUR SOFT SERVE MACHINE OPERATES ON 30-32 POUNDS PRESmiddot A SURE NEVER DISMANTLE ANY PART OF THE MACHINE UNLESS THE MACHINE HAS BEEN DEPRESSURIZED THE SELECTOR
SWITCH IS IN THE OFF POSITION AND THE MAIN POWER SUPPLY HAS BEEN DISCONNECTED DEPRESSURIZE THE CYLINDER BY OPENING THE SPIGOT WITH THE PUMP SWITCH IN THE OFF POSITION
CLEANING MIX HOSE
The CAB models use the DPR mix pump You must disconnect the mix hoses and clean them thoroughly USing a long handle brush and a suitable cleanersanitizer you must brush the interior of the mix hose to insure there is no build up of product on the walls of the hose Water temperature for this cleaning process should be 1800 F to meet some health codes After reassembly pump sanitizer through the hoses
Mfg by H C DUKE amp SON INC 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
13
14
GENERAL INFORMATION OVERRUN ADJUSTMENT
The overrun on your CAB machine equipped with a DPR pump is regulated by the air meter (Item 45-pump parts breakdown) You are supplied with three air metering plugs each containing a different size orifice The smaller the hole the lower the overrun The larger the hole the higher the overrun The orifice or hole in this air meter must be open at all times It is the only source of air into the freezing cylinder Check this daily
The mix will be a determining factor as to the amount of overrun you will be able to achieve Some mixes will accept more air than others thus regulating the size of air meter you can use Test to see which air meter will give you the best overrun and the best tasting shake Run each air meter for one day until you make the determination You may have a slightly higher overrun when you first start up the machine When the machine has run long enough to dispense at least one full cylinder of product you will have the overrun that the machine wil hold the remainder of the day
ADJUSTING PUMP PRESSURE
Only to be performed by a qualified service technician
A WARNING
DISCONNECT MAIN POWER SUPPLY BEFORE REMOVING PANELS
NOTE The pump will not operate without the cover in place
The DPR Pump is controlled by pressure in the mix line acting on the diaphragm (Ref 43) As the pump fills the freezer cylinder with mix pressure builds causing the diaphragm to expand As the diaphragm expands it contacts the button (Ref 51) which in turn depresses the pump pressure switch (Ref 60) The pressure switch button moves inward until the switch is opened turning off the pump motor When product is drawn from the freezer the diaphragm closes the pump pressure switch allowing the pump motor to restart Pump pressure will check the same with air mix or water We suggest the pressure be checked with air pressure only
Step 1 - Remove the rear panel from machine and the pump electrical box cover (Ref 6)
Step 2 - Locate the pressure adjusting nut (Ref 59) Turn the adjusting nut clockwise to increase pressure or counterclockwise to decrease pressure Usually one half turn of the adjusting nut will raise or lower the pressure of the model DPR pump two (2) PSIG
Step 3 - Install a quality pressure gauge in the mix output line Turn main power supply and pump switch to ON pOSition Caution Electrical power present through entire machine Allow the pump to pressurize until it shuts off automatically Observe the gauge pressure reading and disconnect main power supply Repeat the adjustment steps 1 through 3 until the proper pressure is obtained (30 to 32 PSIG) Reinstall the electrical box cover and rear panel
NOTE Pressure tine must be at least 6 fI long in order to obtain an accurate reading
A Pressure Gauge PIN 112791 may be purchased from your local distributor
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
PRESSURE RELIEF ASSEMBLY
The model DPR Pump incorporates a self contained safety pressure relief system The parts included in this assembly are (Ref 30 through 39) Any discharge of mix through the hose (Ref 37) is an indication of excessive pump pressure For corrective action refer to the trouble shooting section of this manual
REFRIGERATION SETTINGS
A WARNING
DISCONNECT MAIN POWER SUPPLY BEFORE REMOVING PANELS
The CAB Soft Serve machine contains two types of temperature control devices the expansion valve and the thermostat (explained in Thermostat Section) The expansion valve meters the flow of refrigerant to the cylinder and must be set correctly to give you maximum production
To locate the expansion valve remove the side panel On the single head CAB machines remove the right side panel The double head machines will have an expansion valve behind both right and left side panels
The expansion valve should only be adjusted by a refrigeration technician with refrigeration test gauges connected to the compressor Adjustments to the valve are shown in the following chart
REFRIGERATION SETTINGS MODEL TYPE OF COOUNG WATER AIR 917CAB 927CAB 957iAa I
Cyl Suction Pressure Rmiddot502 15middot17 (PSIG) 15-17 (PSIG)
9711CAS Cyl Suction Pressure R-502 15middot17 (PSIG) 15middot17 (PSIG)
ALL SOFT SERVE
CABS
Cab Suction Pressure Rmiddot502 Head Pressure Thermostat Differential
8middot10 (PSIG) 230-240 (PSIG)
17degmiddot22deg 7deg~8c
8-10 (PSIG) 230middot315 (PSIG)
17deg_22deg 7c -8deg
NOTE To correctly set the cylinder expansion valve the cabinet thermostat switch An must be in the OFF position (Full counterclockwise) with the compressor running
NOTE To correctly set the cabinet expansion valve the selector switch must be in the OFF position and the cabinet switch in the ON position (With the compressor running)
A refrigeration test gauge must be used when adjusting the suction pressure To reduce the suction pressure turn the adjustment screw on the expansion valve counterclockwise Do not turn more than 14 turn at a time Let the unit operate a sufficient length of time - at least two minutes - to properly read on the gauge the adjustment made
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline illinOIS 61244
SUPERIOR QUAUTY FREEZERS bull SOFt SERVE bull SHAKE bull SLUSH
15
16
THERMOSTATS
A WARNING
DISCONNECT MAIN POWER SUPPLY BEFORE REMOVING PANELS
Thermostat Au is the cabinet refrigeration thermostat The cabinet thermostat operates off of both the day and night switch operation to maintain 44 0 F or lower in the mix storage cabinet This thermostat can be adjusted by rotating the adjustment knob To set this thermostat colder turn the adjustment knob clockwise
CYLINDER THERMOSTAT
The cylinder thermostat is located behind the right side panel (on single head CABs) faCing the front of the machine On the double head CABs like the expansion valve a cylinder thermostat is located behind both the right and left side panels This control has two settings The first is the differential which should be set on 7-8deg F The other side of the control marked HIGH EVENT should be set between 17-220 F
The purpose of the cylinder thermostat is to maintain an 18deg F product during idle periods If the thermostat is set too cold and product is not drawn out of the machine a freeze up condition will result DO NOT run the product below 17deg F
NOTE The settings on the thermostat are ONLY to be used as a guide
For a correct adjustment a thermometer must be used to check the actual product temperature Each thermostat should be set in the field for the product being used Most of the time a temperature setting of between 18deg and 19deg F will maintain a satisfactory product Once the thermostat is set for the mix used it should require no further adjustment
MIg by H C DUKE amp SON INC 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH P~IIIIUSA
THERMOSTAT_________ Turn knob clockwise to make product colder
Differential adjustment
copy
COLDER ~ reg
copy5
2 6Igt
1 7 OFF
copy
THIS ASSEMBLY USED ON LEFT SIDE OF UNIT
RIGHT SIDE USES THIS ASSEMBLY WIO THERMOSTAT A (CAB THERMOSTAT)
MIg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
17
18
MAINTENANCE AND ADJUSTMENT
ONLY TO BE PERFORMED BY A QUALIFIED SERVICE TECHNICIAN
WARNING
MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFF POSITION AND THAT THE MAIN POWER SUPPLY IS DISCONNECTED BEFORE REMOVING PANELS
LUBRICATION INSTRUCTIONS
FAN MOTOR (Air Condenser) Lubricate annually with SAE 10 motor oil in the oil cups
CAUTION DO NOT OVER-LUBRICATE OVER-LUBRICATION CAN DAMAGE MOTOR
GEAR REDUCER The gear reducers are heavy duty worm-geared units manufactured to HC Duke specifications II traces 01 oil are found in the immediate area around the reducer repair the leak (usually an oil seal) and check the oil level When adding oil use only synthetic gear lube in the reducer
NOTE This is a special oil and will not mix with a petroleum base oil Contact your distributor when this oil is needed This oil should be changed at least once a year
OIL LEVEL PLUG
PROPER OIL LEVEL
OIL DRAIN USE SPECIAl PLUG OIL ONLY
USE SPECIAL LOILON=LY-- I
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH ~1U8A
MAINTENANCE AND ADJUSTMENT ONLY TO BE PERFORMED BY A QUALIFIED SERVICE TECHNICIAN
WARNING
MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFFA POSITION AND THAT THE MAIN POWER SUPPLY IS DISCONNECTED BEFORE REMOVING PANELS shy
BEATER MOTOR Beater motors are either single or three phase Capacitor starting is used on the single phase units The beater motor should be inspected and cleaned
WATER COOLED CONDENSER Depending on the condition of your water the condenser on your CAB machine may require cleaning from time to time Usually a restricted flow of water resulting in a high head pressure indicates a dirty condenser The condenser should be flushed out with an acid solution by a qualified service technician
AIR COOLED CONDENSERS At least once a month the face area of the condenser should be inspected for accumulation of dirt and dust Surface dust and dirt can usually be removed with a stiff brush andor vacuum cleaner After brushing hold a light between the fan blades and look through the condenser from the opposite side This procedure will locate those areas where accumulated dirt has lodged between the condenser fins To clean these areas obtain a small tank of nitrogen or C02 with a needle control valve or pressure regulator with a small hose attached and proceed as follows
(1) Place a damp towel or cloth over the face area of the condenser
(2) Open the control valve or regulator on the tank releasing pressure to the coil from the back side cleaning the condenser
(3) Check the condenser periodically with the light and continue the treatment until the fins are clean
For maximum performance replace all worn O-Rings Seals Blades etc
CAUTION USE ORIGINAL OR AUTHORIZED REPLACEMENT PARTS ONLY WITH THIS FREEZER
Mig by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline illinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
19
20
PULLEY ALIGNMENT AND BELT TENSION ONLY TO BE PERFORMED BY A QUALIFIED SERVICE TECHNICIAN
WARNING
A MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFF POSITION AND THAT THE MAIN POWER SUPPLY IS DISCONNECTED
Remove the side panels to expose the pulleys and belts
Check the alignment of the beater motor pulley and gear reducer pulley by placing a straight edge across the faces of the two pulleys If the pulleys are not aligned adjust as necessary until proper alignment is obtained
Depress the belts with a finger at a point midway between the two pulleys When properly adjusted the belts should depress 12 from its normal position with approximately 5 pounds of pressure If the belts are too tight or too loose adjust as necessary until proper belt deflection is obtained Loosen four (4) bolts which hold the motor mounting plate to the frame With these loose adjust tension bolt in or out as required to obtain proper belt tension Retighten bolts
BELTS
Periodically inspect the belts If they are worn excessively replace both belts For best results it is advisable to replace both belts as they are manufactured in matched sets
SCRAPER BLADES
NOTE Be sure to purge all of the sanitizer from the mix system before operating the freezer (see page 12) Failure to completely remove sanitizer or water trom the freezing cylinder before placing the machine in the Automatic position may cause blade breakage and damage the freezer
o o
NEW BlADE WORN BLADE
Replace blades if worn 316 or more
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
END PLAY FOR BEATER DRIVE COUPLING
It is very important that the drive coupling located on the gear reducer be set properly Referring to the Drive Coupling Illustration the following procedure should be followed in setting the end play
WARNING
MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFF POSITION AND THAT THE ELECTRICAL POWER TO THE MACHINE IS DISCONNECTED SO THAT THE UNIT WILL NOT OPERATE
------
DRIVE COUPLING ILLUSTRATION
REF DESCRIPTION REF DESCRIPTION 1 Gear Reducer 6 Reducer Mounting Plate 2 Beater Shaft 7 Set Screws 3 Shaft Seal 8 Bolt Gear Reducer 4 Drive Coupling 9 Bolt Reducer Mounting Plate 5 Spacer 10 Key
11 Output Shaft
Improper drive coupling spacing will damage the beater shaft dispensing head and drive coupling When checking end play settings or replacing a coupling proceed as follows
REMOVING COUPLING
WARNING
DISCONNECT MAIN POWER SUPPLY
Mig by H C DUKE amp SON INC bull 2116 Eighth Allenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SO SERVE bull SHAKE bull SLUSH
21
22
(1) Remove Beater Shaft (Ref 2)
(2) Remove both drive belts (not shown)
(3) Remove gear reducer bolts (Ref 8) Six (6) bolts are located around the face of the reducer
NOTE Remove the top bolt last holding the bottom of the reducer as you do so
(4) Remove the gear reducer (Ref 1) and place-on table or bench
(5) Replace two (2) bolts (Ref 8) one (1) at the top and one (1) at the bottom so that the reducer cover will not come off while the coupling is changed
(6) Loosen the four (4) set screws (Ref 7) and remove the drive coupling (Ref 4) Should the coupling be stuck tight to the ouput shaft lightly tap the coupling from the back with a hammer and bar Sometimes due to age this coupling will stick so tight it will have to be removed with a pulley removing tool or a wheel puller
(7) Remove the key (Ref 10)
INSTALLING THE NEW COUPLING
(1) Clean gear reducer output shaft (Ref 11) with fine emery cloth and slide the new drive coupling on the reducer shaft The coupling should slide on the shaft all the way without the key If the coupling doesnt slide completely on check both coupling and reducer shaft for burrs When a smooth sliding fit is achieved remove coupling and proceed with final assembly
(2) Place key (Ref 10) in keyway slot on the reducer output shaft Keep the key flush with the front end of the output shaft (Ref 11)
(3) Slide the coupling (Ref 4) on the output shaft until it bottoms out on the shaft Leave the four (4) set screws loose as the coupling will have to be adjusted
(4) Remove the two (2) bolts added in preceding Step 5
(5) Place one (1) gear reducer bolt (Ref 8) in the top hole of the cylinder mounting plate
(6) Insert gear reducer into cylinder mounting plate and start top bolt (Ref 8) Do nol tighten completely Now insert the other bolts one at a time When all bolts are in tighten each boll
NOTE Due to very close tolerance between the gear reducer and cylinder mounting plate no alignment is required when Installing the reducer When the reducer bolts are tightened the reducer will seH-align with the cylinder
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
(7) Insert the beater shaft (Ref 2) with the shaft seal and blades into the cylinder and engage beater shaft in the drive coupling Place bushing on front of beater shaft
(8) Tape a dime (10 cents) to the back of the dispensing head in the very center at the point where the beater shaft touches the dispensing head The dime is used to acquire the proper end play setting on the drive coupling which is approximately 332
(9) Place the dispensing head into the cylinder and tighten with the hand knobs Important make sure hand knobs are tight and head is against the end of the cylinder tube
(10) Slide the drive coupling (Ref 4) forward until it is tight against the beater shaft and lock into place the four (4) set screws (Ref n
(11) Remove the dime from the back of the dispensing head
(12) Replace the drive belts
(13) Turn on electrical power
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
23
PANEL BREAKDOWN - 917CAB
~--~
3
REF PART No 1A 114544 1B 112991 2A 136075 2B 136102
3A 137027 3A 137028
3A 136105 3B 136103
3B 134817 4 134818
4 136101 5A 114780
5A 113570 5B 112967
6 112960 7 133291
24 A 917CAB only
I
dJ
DESCRIPTION Frame ssmiddoty Frame ASsmiddoty Lower Side Panel Lower Side Panel LH Side Panel RH Side Panel Upper Side Panel Upper Side Panel Upper Side Panel Rear Panel Rear Panel Top Cover ASsmiddoty Top Cover ASsmiddoty Top Cover ASsmiddoty Filler Panel ASsmiddoty Top Filler Strip
B bull 44 CAB only
~
[At 16 lt0
REF 8
9 10 11 12 12A 13
14 15 16 16A
Air Cooled only
PART No DESCRIPTION 132687 Dispense Panel 134247-01 Dispense Panel Cab-W
Drip Tray (See Pg 35) 114260-01 Door Assmiddoty wIHinges 132444-01 Left Hand Filler Strip 162045 Upper Hinge 162052 Spring LH 162046 Lower Hinge 160026 Screw 160020 Bolt 160139 Washer 110205 Syrup Jar Enclosure 160563-01 Door Gasket 01-Groove) 159174 Drip Tray Button 160293 Clip for Button
Water Cooled only
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
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REF PART No DESCRIPTION REF PART No DESCRIPTION 1 114538 Frame Assy 10 162045 bull Upper Hinge 2 136289 Side Panel LH lOA 162052 Spring LH 3 136313 Rear Panel 11 162046 Lower Hinge 4 114006 Top Panel AC llA 160026 Screw 4A 114428 Top Panel WC l1B 160020 Bolt 4B 114157 Top Panel AC Remote l1C 160139 Washer 5 113983 Front Panel Assy 927CAB 12 136216 Side Panel RH 5A 113985 Front Panel Assy 957cAB 13 160563 Door Gasket (V-Groove) 6 130021 Rear Corner Channel RH 14 159174 Drip Tray Button 6A 135254 Rear Corner Channel LH 14A 160293 Clip for Button 7 137228 Dispensing Panel 162108 Stop Pin (Screw In) 8 Drip Tray (See Pg 35) 136199 Door Pull 9 114260 Door Assy wHinges
25
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
SOFT SERVE CAB ELECTRICAL BOX
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 Contactor (Order By Freezer 5 150463 Selector Switch
Serial Number) 6 159235 Toggle Switch (Pump) 2 Overload (Order By Freezer 7 150456 Spigot Switch
Serial Number) 7A 136124 Button - Spigot Switch 2A Heater Coil (Order By Freezer 7B 162302 Spring - Spigot Switch
Serial Number) 8 150553 Pilot Light - Amber 3 Starter (Order By Freezer 9 150552 Pilot Light - Red
Serial Number) 10 161026 Thermometer (Not Shown) 4 150208 Timer
26
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Pointed u
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Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prifllcl If USA
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SOFT-SERVE - SINGLE HEAD CAB
REF PART No 1 151351
2 3 4 5 6 151044
151052 7
8 155039 9 155400 10 155117
11 151084
12A 159021 13 155401 13A 155423 14 155403 15 155422
16 154976 16 154975 17 159203 18 155051 19 112901
155410 20 155044
151348
DESCRIPTION Capacitor Relay Assembly (single phase)
150247 Start Capacitor
150249 Run Capacitor 150245 Relay Motor Capacitors (order by freezer serial no) Gear Reducer (see gear reducer breakdown page 36) Driven Pulley (order by freezer serial no) Belt (order by freezer serial no) Motor 1-phase 230 volt Motor 3-phase 208230 volt Driver Pulley (order by freezer serial no)
Water Condenser Automatic Expansion Valve (Cylinder) Air Condenser
Condenser Fan Motor
Condenser Fan Blade High Pressure Cut-Out shyHigh Pressure Cut-Out shyLow Pressure Cut-Out Solenoid Valve
Compressor 230160
AC WC
Compressor 208-230360 Sight Glass Drier (38) Receiver Tank Assembly Water Valve (not shown) Service Valve Compressor Mounting Kit
Note I) lt0 For All 50-Cycle Freezers Order By Freezer Serial Number
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Printad I usA
30
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SOFT-SERVE - DOUBLE CAB - WATER COOLED REF PART No DESCRIPTION 1 155026 Water Condenser (B-side) 1 A 155039 Water Condenser (A-side) 2 159203 Sight Glass 3 155051 Drier (38) 4 155400 Automatic Expansion Valve (Cylinder) 5 Gear Reducer (see gear reducer breakdown page 36) 6 155410 Water Valve 7 155423 High Pressure Cut-Out 8 155403 Low Pressure Cut-Out 9 154976 Compressor 230160
151351 Capacitor Relay Assembly (Single Phase) 150247 Start Capacitor 150249 Run Capacitor 150245 Relay
9A 154975 Compressor 208-230360~-11 NOT USED ON THIS MODEL 12 155442 Low Temp Control 13 Driven Pulley (order by freezer serial no) 14 Belt (order by freezer serial no) 15 Driver Pulley (order by freezer serial no) 16 155422 Solenoid Valve 17 151044 Motor 1 phase 230 volt 17A 151052 Motor 3 phase 208230 volt 18 Motor Capacitors single phase only (order by freezer serial no)
Note For All 50-Cycle Freezers Order By Freezer Serial Number
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Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH _InU5A
32
c W J o o o -a oCt
aI oCt o W I m ) o c w gta w Ch t--LL o Ch
SOFTmiddotSERVE bull DOUBLE CAB - AIR COOLED REF PART No 1 155120 2 159020 3 151080 4 155400 5 6 159203 7 155051 8 112901 9 151044 9A 151052 10 11 12 14 154976
14A 154975 15 155401 16 155403 17 155443 18 155442 19
21 155422
DESCRIPTION Condenser Fan Blade Fan Motor Automatic Expansion Valve (Cylinder) Reducer (see gear reducer breakdown page 36) Sight Glass Drier Receiver Assembly Motor 1-Phase 230 Volt Motor 3-Phase 208230 Volt Driven Pulley (order by freezer serial no) Belt (ordr by freezer serial no) Driver Pulley (order by freezer serial no) Compressor 230160 151351 Capacitor Relay Assembly (Single Phase)
150247 Start Capacitor 150249 Run Capacitor 150245 Relay
Compressor 208-230360 High Pressure Cut-Out Low Pressure Cut-Out Cabinet Thermostat Low Temp Thermostat NOT USED ON THIS MODEL Motor Capacitors single phase only (order by freezer serial no) Solenoid Valve
Note For All 50-Cycle Freezers Order By Freezer Serial Number
Vl Vl
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prinled In USA
CAB PARTS BREAKDOWN
REF PART No DESCRIPTION PART No DESCRIPTION 1 155109 Cabinet Coil 136297 Condensate Pan (Not Shown) 1A 155113 Motor Cabinet Fan 196092 Mix Tank 7-12 Gal 1B 155099 Fan Blade Cabinet Coil 113997 Front Lid Mix Container
7-12 Gal 136248-01 Rear Lid Mix Cont 7-12 Gal
10 155416 CAB Automatic Expansion 130092 Mix Tube Valve 196028 Mix Tank 10 Gal
137119 Probe 11 -1 4 shy1E 155114 Fan Grill amp Bracket 7-12 Gal Container 1F 155116 Knob 137119-01 Probe 10-34 shy2 113898 DPR Pump Less Motor 7-12 amp 10
(see pump breakdown Gal Container pg 38) 137119-02 Probe 10-14 shy
3 196061 Mix Hose (sold by the foot) 10 Gal Container 4 150416 Door Switch 137120 Base Probe Mtg 4A 114630 Actuator Door Switch 160500 O-Ring
(Not Shown) 114572 Hose Clamp (Not Shown) 5 150527 Retractable Cordset 34
MIg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prlmd UsA
MERCHANDISING ASSY
PART No 115108 115107
PART No
196107-01 196108-01 114610 114608 115132 199030
PART No 162105 162106 112978 158004 158021 158022 158078 158000 158056 158000A 158014 158014A 161000 158049
DESCRIPTION 2S Merchandiser-927-957-978CAB 24 Merchandiser-917CAB
DRIP TRAY
DESCRIPTION
24 Drip Tray-917CAB 26- Drip Tray-927-957-978CAB 24 Tray Insert-917CAD 26 Tray Insert-978CAB-927CAB 26 Tray Insert-957CAB Rubber Bumper (only)
DESCRIPTION Caster With Brake Caster Without Brake Leg-6 4 Cylinder Brush Mix Hose Brush 58 Dia w6 Ft Handle 14 Pump Brush Drain Tube Brush Petrol Gel (12 tube carton) Petrol Gel (6 tube carton) Pe1rol Gel (per tube) Stera Sheen (per case) Stera Sheen (per jar) Pocket Thermometer 1 Dial Z32 Overrun Scale
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SNAKE bull SLUSH
35
36
GEAR REDUCERS Order By Freezer Serial Number
Model 3 CB
153345 5-1 Ratio B side 153004 High Speed Cup ~ (2 ea required) 153005 High Speed Bearing (2 ea required) 153008 Slow Speed Cup (2 ea required) 153009 Slow Speed Bearing (2 ea required) 153052 Slow Speed Seal (2 ea required) 153054 High Speed Seal (2 ea required) 153313 Brass Gear 5-1 Ratio 153336 Slow Speed Shaft Only 5-1 Ratio 153316 Worm Gear On Shaft 5-1 Ratio 114873 Gasket Set
Model 4 CB
153342 10-1 Ratio A side 153343 10-1 Ratio B side
153014 High Speed Cup (2 ea required) 153015 High Speed Bearing (2 ea required) 153011 Slow Speed Cup (2 ea required) 153012 Slow Speed Bearing (2 ea required) 153051 Slow Speed Seal (2 ea required) 153053 High Speed Seal (2 ea required) 153349 Brass Gear 10-1 Ratio 153339 Slow Speed Shaft OnIy 10-1 Ratio 153347 Worm Gear on Shaft 10-1 Ratio 114874 Gasket Set
Winlwin Model
153341 Wintwin 10-1 Ratio A and B Side
153014 High Speed Cup (2 ea required) 153015 High Speed Bearing (2 ea required) 153011 Slow Speed Cup (2 ea required) 153012 Slow Speed Bearing (2 ea required) 153051 Slow Speed Seal (2 ea required) 153053 High Speed Seal (2 ea required) 153349 Brass Gear 153350 Slow Speed Shaft Only 153348 Worm Gear on Shaft 11 4874 Gasket Set
158055 Gear Reducer OU 51001
Drive Coupling (Order By Machine Serial Number)
Mfg by H C DUKE amp SON INC bull 2115 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
917 amp 927 Beater Shaft Assembly
957 Beater Shaft
Item Part No Description
1 196079 Bushing-Cylinder 2 114752 Beater-Assy Long (Shaft) 3 137334 Blade-Scraper Soft Serve 4- 160500 O-Ring (Shaft Seal) 5- 133098 Bushing (Washer-Shaft Seal) 6 160557 Seal-Beater Shaft
-Items 4-6 111875 Seal-Assy Shaft (Complete)
31
1 113438 2 196079 3 137334 4- 160500 5- 133098 6 160557
-Items 4-6 111875
Shaft-Assy Beater Bushing-Cylinder Blade-Scraper O-ring (Shaft Seal) Washer-Shaft Seal (Bushing) Seal-Beater Shaft (Cup)
Seal-Assy Shaft (Complete)
ao
DISPENSING HEAD
16
r
Q
--~
-----_
REF PART No DESCRIPTION Tl3o 6 119928- Door Assembly shy Complete (Items 7-14) 11637- 7 196688 Door shy Less Parts
a 134921 Spigot shy Less Extension 9 134922 Handle Extension shy Spigot
10 162624 Handle 11 159295 OmiddotRings shy Spigot (Lots of 5)12 159309 O-ring shy 4 - Door 13 196066 Air Relief Screw 14 160621 a-Ring shy Air Relief Screw (Lots of 5)15 136126 Rod - Spigot Switch shy 917 8 927 16 136798 HMdKnob
38
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illmols 61244
SUPERIOR QUAUlY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
Duke Soft Serve Freezer Models 917R and 927RN
5 -______
7
6
UPDATEDDispense Head Assembly
Item Part No
115130 1 116321 2 160583 3 115129 4 160562 5 136126 6 134921 SA 162624 68 134922 7 159295 8 160584 9 162625 9A 114341 10 196185 10A 137870 108 136713
116410
Includes items 1-4 6-8
Description
Head-Assy Dispense (Complete) Head-Assy wActualor O-ring (Head-4-inch) Bleeder-Assy (Air Relief Plug) O-ring (Bleeder-Assy) Rod-Spigot Switch Spigot-long Single Handle-Black Tapered Handle-Spigot (Stainless Steel) O-ring (Spigot) O-ring (Extension) Knob-Hand Stud-Assy Cylinder 1-15116 inch (not shown) Nouie-Slar Adapter (accessory) Adapter-Yogurt Nozzle (not shown) Extension-Spigot (accessory-cake not shown) Kit-Dispense Head Switch
( Use only original or authorized replacement parts with this freezer )
DISPENSING HEAD
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH uu
REF PART No 114765
1 196082 2 114313 3 137018 5 136618 6 162626 8 134499 9 162625
10 115129 11 136794 12 159309 13 159295 14 160562 15 136713 16 160584
DESCRIPTION Door Assy-Complete Door-Less Parts Spigot Assy-Side Spigot Only-Center Extension Only-Center Handle Stud-Handle Stop Hand Knob Air Re1ief-Assy Rod-Spigot Switch O-Ring-4-Door O-Ring-Spigot O-Ring-Air Relief Extension-Spigot a-Ring
39
40
PUMP MOTOR AND HOUSING ASSEMBLY SAFETY SWITCH ASSEMBLY
PRESSURE SWITCH ASSEMBLY ijreg~
I
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH IIIUaA
CAB DPR PUMP BREAKDOWN
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 196091 Pump Base 46 114009 Pump Cover 2 136088 Pump Support 47 113464 Base Bracket Assembly 3 150784 Strain Relief Bushing 48 135725 Stud 1-78 4 Power Cord 49 160131 516 Flatwasher 5 160075 10-24 x 38 Screw 50 160293 Speed Clip 6 135416 Cover Electric Box 51 135724 Button 7 160141 14 Lockwasher 52 160140 10 Lockwasher 8 160491 14-20 x 34 Socket Screw 53 135726 Stud 3 9 113497 Motor Cord 18-3 SJT 54 160109 10-24 Hex Nut 10 151127 Motor 40 RPM Soft Serve 55 135729 Switch Actuator 11 160023 14-20 x 1 Screw 56 135731 Stop - Max Pressure 12 153317 Half Moon Key 57 162315 Spring - Soft Serve 13 112925 Cam Drive Plate Assembly 58 160138 10 Flat Washer 14 160495 14-20 x 14 Set Screw 59 160304 10-24 Stop Nut 15 160369 Pin 60 150456 Pressure Switch 16 134614 Swing Clamp 61 135744 Insulator - Fiber 17 134521 Adjusting Clamp 62 160381 6-32 x 1 Socket Screw 18 160488 Thumb Screw 63 160393 6 Flatwasher 19 134604 Bearing Bushing 64 160146 6 Lockwasher 20 134602 Connecting Rod 65 160309 6-32 Hex Nut 21 134601 Piston 66 160006 6-32 x 14 Screw 22 159295 O-Ring 67 160001 8-32 x 38 Screw 23 134603 Wrist Pin 68 160470 8 Lockwasher 24 136089 Cylinder 69 150481 Circuit Breaker 25 199011 Washer Valve 70 135727 Switch Bracket 26 159282 O-Ring 71 136311 Spacer - Cover Switch 27 113839 Pump Valve Housing 72 160028 Truss Head Screw
Assembly (Metal) 14-20 x 34 SST 28 160582 O-Ring 73 160141 Lockwasher 14 29 199020 Sleeve Rubber 74 160104 Hex Nut 14-20 30 135793 Retainer Clip 75 136312 Button Guard 31 135791 Adapter Hose Outlet 76 160020 Hex Hd Cap Screw 32 160581 O-Ring 14-20 x 1 SST 33 135790 Piston 77 113869 Switch Bracket 34 162308 Spring Soft Serve 78 136110 Button Cover Switch 35 135792 Drain Port 79 162314 Spring 36 160611 O-Ring 80 150456 Switch Pump Safety 37 135896 Hose 24 81 135004 Switch Cover 38 160738 Hose Clamp 82 160296 Screw RH 39 136288 Keeper 6-32 x 1-14 40 160554 O-Ring 83 160146 Lockwasher 6 41 160368 Wing Nut Int Tooth 42 130054 Diaphragm Housing 84 160393 Flatwasher 6 43 199019 Diaphragm 85 160309 Hex Nut 6-32 44 196074 Air Tube-Curved 86 114572 Hose Clamp 45 163433 Air Meter - 20 87 160048 14-20 x 12 TRHM
(other sizes available) 88 160308 6-32 x 516 RDHM 89 114581 Circuit Breaker Bracket
Not Shown 90 163109 Stop Pivot 112791 DPR Pressure Gauge
41
Mfg by H C DUKE amp SON INC 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
42
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Unit does not operate 1 Fuse blown at main disconshy 1 Check fuse size check for low nect voltage if not within 10 of
nameplate rating install transformer or call power company
2 Beater motor out on overload 2 Press starter reset button and check for low voltage Check producllemperalure and overrun
3 Disconnected or broken wife 3 Check wiring and wire connecshyin electrical circuit lions repair or replace lead
wires as necessary
4 Faulty selector switch 4 Replace selector switch
5 Out on high pressure 5 Check for low waler supply or dirty air conden ser
6 Out on low pressure 6 Check limit control and freon charge
Compressor does not operate f Troubte in compressor con- I Refer to Trouble-Shootingshyor operates improperly densing circuit Compressor I Condensing
Circuit
2 Faulty capacitor assembly 2 Replace capaCitor assembly (Single phase only)
3 Faulty contactor 3 Replace contaclOr or pOints
Compressor operates but 1 Loose con neclion at motor 1 Tighten connection beater motor does not starter coil (electrical box)
2 Open starter coil 2 Replace coil
3 Faulty capacitor assembly 3 Replace capaCitor assembly (Single phase only)
Dispensed product too hard 1 Cylinder themostat erratic 1 Adjust thermo slat or replace or set too low
2 Faulty time delay relay 2 Replace time delay relay
3 Solenoid valve leaking 3 Replace solenoid valve
4 Low suction pressure 4 See chart on page 15 for adshyjustments
Leaking of mix from rear housshy 1 Damaged bealer shalt seal 1 Replace shaft seal or O-ring ing discharge tube to drip tray inside seal assy
Mig by H C DUKE amp SON INC bull 2116 Eighlh Avenue Easl Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Mix leaking at dispensing head 1 Faulty 4 O-Ring
2 Head not properly installed
1 Replace 4 O-Ring
2 Install head properly
Mix sours in cabinet 1 Cabinet thermostat setting too high
2 Cabinet thermostat detective
3 Cabinet solenoid valve deshyfective
4 Cabinet switch defective
5 Beater motor out on overshyload (cab side)
1 Adjust thermostat
2 Replace thermostat
3 Replace coil or solenoid
4 Replace cabinet switch
S Reset overload for beater motor See pg 42 unit does not operate
Cabinet too COld
Machine runs continually and Product continues to get colder
Compressor operates only when dispensing
Unit runs conMuously Product does nol reach 180 F temperature
6 Door sWitch defectIVe
1 Cabinet thermostat setting too low
2 Defective thermostat
3 Cabinet solenoid stuck open
4 Cabinet expansion valve set too low
1 Plunger switch out of adjustshyment
2 Su ction pressure too low
3 Defective plunger switch
4 Plunger switch rod engaged
5 Faulty time delay relay
6 Starter or relay contacts stuck
7 Faulty thermostat or bulb not deep enough in well
6 Replace door SWitch
1 Adjust thermostat
2 Replace thermostat
3 Replace solenoid
4 Adjust cabinet expansion valve (See pg 15)
1 Adjust plunger switch
2 Adjust expansion valve and check freon charge
3 Replace plunger switch
4 Close plunger completely
5 Replace time delay relay
I 6 Check contacts i
7 Check bulb location or replace thermostat
1 Cylinder themostat setting 1 Adjust thermostat or replace too high or thermostat deshyfective
1 Trouble in compressor I condensing system
2 ExpanSion valve setiing is too high
3 Low on refrigeranl
1 See Trouble-Shooling-CompressorI Condensing circuit
2 Adjust expansion valve
3 Check and repair leak and recharge
1
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE SLUSHbull
43
44
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Dispensed product too soft (Product temperature above 21 0 F)
1 Automatic expansion yalve incorrectly set or erratic in operation
-2 Leak in refrigeration system
resulting in little or no refrigeration
1 Adjust or replace expanSion valve
2 Pump down system or remove refrigerant charge repair leak evacuate and recharge
3 Excessive oil in system 3 Drain compressor to proper oil leyel pump down and flush system
4 Thermostat set too high taulty
or 4 Adiust thermostat or replace
Product dispenses slOWly out dispensing head
1 Reverse rotation 1 Change rotation to clockshywise from front of freezer
2 Dispensing speed adjustshyment boll too far down
2 Adjust bolt upward
3 Pum p problem 3 See pump Trouble-Shooting chart
4 Product too cold 4 See dispensed product too hard pg42
TROUBLE-SHOOTING CHART COMPRESSORICONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor will not start -hums intermittently (cycling on oyerload)
1 Improperly wired
2 Low line Yoltage
3 Open starting capacitor (single phase only)
4 High discharge pressure
1 Check wiring against diagram
2 Ask power company to increase YOltage to not less than 10 below nameplate rating or install transformer Check for inadequate wire size
3 Replace starting capacitor
4 CheCK water regulating valve setting Check water or air condenser and clean if necessary Make sure disshycharge shut-oft valve is open
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor starts but remains 1 Low line voltage 1 Ask power company to in start windings increase voltage to not less (Single phase only) than 10 below nameplate
rating or install transrormer
2 Improperly wired 2 Check wiring against drawing Check wire size
3 Running capacitor shorted 3 Check by disconnecting running capacitor
4 Starting capacitor weak 4 Check capacitor replace
5 High disCharge pressure 5 Check water regulating valve check water or air condenser and clean il necessary Check discharge shut-off valve
Starter burned out 1 Low line voltage 1 Ask power company to inshycrease voltage to not less than 10 below nameplate rating or install transformer
2 Excessive line voltage 2 Ask power company to reduce voltage to maximum of 10 over nameplate rating
Starting capacitors burn out 1 Voltage 100 low 1 Ask power company to (Single phase only) increase voltage to not less
than 10 below nameplate rating or install translonmer
2 Improper capacitor 2 Replace capacitor with properly rated capacitor as listed in manual
Running capacitors burn out 1 Excessive line voltage 1 Ask power company to reshy(Single phase only) duce line voltage to not more
than 10 above rating 01 motor
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
45
46
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Unit operates long or continuously
1 Shortage of gas
2 Dirty condenser
3 Moisture in system
4 Compressor failing
1 Repair leak and recharge
2 Clean condenser
3 Evacuate and recharge system
4 Check compressor lor proper pressures If inadequate replace compressor
Head pressure too high 1 Refrigerant overcharge
2 Air in system
3 Dirty condenser (air cooled)
4 Unit location too warm (air cooled)
5 Restricted water cooled condenser
6 Water turned off or defective
1 Purge system
2 Purge system evacuate and recharge
3 Clean condenser
4 Relocate unIt away from restriction Place nothing against back or on top of unit
5 Clean or replace condenser
6 Turn on water Or replace water regulating valve regulating valve
Head pressure too low 1 Shortage 01 refrigerant 1 Repair leak and recharge
2 Water regulating valve open 2 Adjust regulating valve too wide
Water 1I0wing through water 1 Water regulating valve 1 Replace water regulating valve waste line when unit is not in operation
defective
Noisy compressor 1 Tubing raUle 1 Bend tubes away from contact
NOTE Refer to warranty card prior to compressor replacement
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING DPR PUMP
TROUBLE PROBABLE CAUSE REMEDY
Pump will not run 1 Pump cover removed 1 Install pump cover
2 Pressure switch actuating 2 Free bulton-check spring and
bulton stuck open (in) pressure switch alignment
3 Pressure switch burned out 3 Replace pressure switch
4 Starting switch in motor bad 4 Install new starting switch
5 Motor burned out 5 Replace motor
6 Circuit breaker kicked out 6 Allow to re- set Replace it or faulty circuit breaker will not
automatically re-set
Motor runs-cam drive plate 1 Loose cam drive plate 1 Tighten set screw in cam will not turn drive plate Check woodruff key
2 Gear stripped 2 Replace gear
Pump will not shut off Mix 1 Pressure swilch actuating 1 Free button-check pressure shoots out pressure relief bulton stuck closed (out) switch alignment
2 Pressure switch stuck in 2 Replace pressure switch closed position
3 Pressure switch assy out 3 Using pressure gauge adjust of adjustment pressure
4 Dirty or plugged diaphragm 4 Disassemble and clean housing (Ref 42) housing
5 Defective O-Ring on 5 Replace O-Ring pressure relief piston
Pump will not prime 1 Insufficient supply of mix 1 Replenish mix supply
2 Piston O-ring defective-no 2 Replace piston O-Ring and suction lubricate
3 Washer valve not sealing 3 Replace washer valve DO NOT LUBRICATE
Pump primes No pressure in 1 Sleeve (Rei 29) not sealing 1 Replace sleeve DO NOT cylinder properly LUBRICATE
2 Loose hose connection on 2 Install or tighten hose clamp pump valve housing (Ref 27)
Mix shoots out Of air intake line 1 Washer valve (Ref 25) 1 Replace washer valve-DO not sealing properly NOT LUBRICATE
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOfT SERVE bull SHAKE bull SLUSH
47
48
TROUBLE-SHOOTING DPR PUMP
Too much air overrun too high-popping problems
Product dispenses slowly out of disPenSing head
1 Air meter too large (Ref 45)
2 Air leak befween mix conshytainer and mix inlet
3 Air line hose crackedshysucking air (Ref 44)
4 Pump pressure too lowshycylinder not full
1 Pump pressure too low
2 PrOduct too cold
3 Low overrun
Diaphragm housing leaking mix 1 Diaphragm housing loose
2 Diaphragm defective
Piston drive assy noisy 1 Bushing bearing worn
2 Defective gear in gear motor
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SIfAKE bull SLUSH
REMEDY
1 Replace washer valve-DO NOT LUBRICATE
2 Install clamp on hose
1 Replace O-Ring and LUBRIshyCATE
1 Clean or replace air meter
2 Replace tube
1 Install smaller air meier
2 Repair as needed
3 Replace air line hose
4 Using pressure gauge adjust pressure switch
1 Using pressure gauge adjust pump pressure
2 Check product temperatureshyshould be about 18 F
3 Check meter-if plugged-clean
1 Tighten wing nuls (Ref 41)
2 Replace diaphragm (Ref 43)
1 Replace bushing bearing (Ref 19)
2 Replace gear
TROUBLE
Mix inlet hose loses prime
Mix on top of piston
PROBABLE CAUSE
1 Washer valve (Ref 25) not sealing properly
2 Mix inlet hose loose
1 Piston O-Ring leaking (Ref 22)
No Air (Overrun) 11 Ai r meter plugged (Ref I 45)
2 Curved air tube pinched
--
DPR PUMP aI
PART NO 199019(i) PART NO 199020 reg DIAPHRAGM RUBBER SLEEVE
PART NO159295 PART NO 159282reg O-RING O-RING0
PART NO 160581reg O-RING
o PART NO PART NO
PART NO199011() 160611(8) 160582 WASHER VALVE O-RING O-RING
PISTON
cJ
DIAPHRAGM HOUSING
CYLINDER
VALVE HOUSIN6 ASSEMBLY
PUUPOUTLET
DRAIN PORT
I PHNO309-755-4553 O-RING CHART HCDUKEampSONINC I
1 I84Z08 SOFT SERVE DISPENSING HEADS I
o PART NO 1605620
PAR~159--1b
PART NO PART NO 1605841 59295()
I PHNO 309-755-4553 O-R ING CHART HCDUKEampSONINC I
- Cover
- Table of Contents
- Safety
- Uncrating amp Inspection13
- Explanation of Electrical Controls
- Operation of Machine
- General Information
- Maintenance amp Adjustment
- Parts Breakdowns
- Trouble-Shooting Charts
- O-ring Charts
-
EXPLANATION OF ELECTRICAL CONTROLS SOFT SERVE CAB ELECTRICAL CONTROLS
The fotrowing is an explanation of each switch across the front of the machine
PUSH TO RESETmiddot Your machine is equipped with an electrical overload system so the beater motor is protected against burn out if your machine is stopped by the overload it will be necessary to push the reset button before it will start again If this happens frequently your machine should be checked for proper voltage or any unusual cause of strain on the beater motor
SELECTOR SWITCHmiddot This is a three position switch that controls the following operations
CLEANOUT (to the left) operates the beater motor only This position should be used in all cleaning and sanitizing operations OFF (Center Position) turns off the cylinder refrigeration and the beater motor AUTOMATIC (to the right) activates the cylinder refrigeration the beater motor and refrigeration to cabinet This is the normal operating position for both day and night operation
MIX PUMP SWITCH bull Controls the DPR pump located in the refrigerated mix storage cabinet Turn this switch to the left ON position for operation and to the right OFF position for disassembling cleaning and night operation
THERMOSTAT SWITCHmiddot Controls the day and night refrigeration cycles The DAY position to the left activates the low temperature refrigeration system and allows the beater motor to operate The NIGHT poSition to the right switches the refrigeration system to a medium temperature holding cycle
CABINET SWITCH bull Controls the cabinet refrigeration The cabinet refrigeration is on when the switch is turned to the left and off when turned to the right Cabinet is automatically on when the selector switch is in the AUTO position
TIMERmiddot is a quick freeze switch Turning the timer will bypass the thermostat forcing the compressor and beater motor to operate The timer can be used for quick start ups in the morning or for fast recovery when large portions are dispensed
CAUTION EXCESSIVE USE OF THE TIMER CAN CAUSE YOUR MACHINE TO FREEZE UP USE ONLY WHEN NECESSARY
RED PILOT LIGHT
When this light is on it is an indication that the compressor is running This can only be on when the Selector Switch is in the AUTO position This light should never be on when anything but approved product is in the freezer (never on when water sanitizer or milkstone remover is in the freezer)
AMBER PILOT LIGHT
When this light is on the agitator drive motor is running This may be on when the Selector Switch is in the CLEAN or AUTO position Whenever the red pilot light is on the amber should also be on
DIAL THERMOMETER
This is an indication of the approximate temperature of the evaporator It should be viewed as an indication of how well the freezer is operating Once familiar with the normal operating measurement (usually between 5 and 15 deg) it is easier to detect unusual or abnormal functions of the freezer Observation of the thermostat often during each day 01 operation is a goOd habit for all operators This is not a measurement of prOduct temperature
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline lInol5 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SWSH PrioMd Ull II
6
CAUTION SWITCHES 1 2 and 4 DO NOT SHUT OFF THE SUPPLY OF POWER TO THE MACHINE THIS ONLY PREVENTS THE CONTROLS FROM OPERATING IF ANY
A ELECTRICAL REPAIRS ARE REQUIRED DISCONNECT THE MAIN POWER SUPPLY TO THE MACHINE AT THE CONTROL PANEL OR FUSE PANEL
PLUNGER SWITCHmiddot This switch only works in the day mode when the selector switch is in the AUTO position When the dispensing handle is pulled down the plunger switch rod raises and engages the plunger switch to turn on the beater motor and compressor The plunger switch activates the time delay and overrides the thermostat When the dispensing plunger is returned to the closed position the machine will continue to run for 12 seconds on the time delay and will then turn off unless the termostat requires additional refrigeration
DISPENSING SPEED ADJUSTMENT
WARNING
A MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFF POSImiddot TION AND THAT THE MAIN POWER SUPPLY IS DISCONNECTED
All soft serve machines have a dispensing speed adjustment To make this adjustment it is necessary to remove the merchandiser and cover from in front of the electrical box Upon removal of this panel you will see the plunger switch mounting bracket (see page 26) At the top of this bracket is the adjusting screw After loosening the lock nut adjust the screw as required The further down you turn this screw the slower the product will come out If you do this with patience you can adjust the machine to the point where the unit cannot be outdrawn (turn to a product that is too soft)
CAUTION ADJUSTING THE SCREW TOO FAR DOWN CAN CAUSE THE MACHINE TO FREEZE UP
TEST OF INSTALLATION
Remove the dispensing head and beater shaft (See Washing Instructions) so that the unit can be tested Turn on the pump switch (pump cover must be in place) to insure that the pump is running turn switch off Turn the following switches on in this order (1) Thermostat switch DAY (2) Cabinet Switch ON and (3) selector switch AUTOMATIC Let the unit run and at this pOint check beater rotation (clockwise from front) frost line in cylinder (front to back) and cabinet refrigeration Allow the unit to run until it shuts of automatically Should you have a short cycle (machine turns on then off every 10 or 15 seconds) check the water inlet manual valve Insufficient supply of water to the machine will give you this short cycle After the machine turns off automatically turn the selector and cabinet refrigeration switch OFF Cabinet refrigeration system will not operate when cabinet door is open
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Molme illinOIS 61244
SUPERIOR QUALIlY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
OPERATION OF MACHINE DISASSEMBLY AND WASHING
Your Soft Serve machine has been completely tested at the factory It is important that the machine be dismantled washed and lubricated before operation
CAUTION ALL CONTROL SWITCHES MUST BE IN THE OFF POSITION AND THE MAIN POWER SUPPLY DISCONNECTED FOR DISASSEMBLY AND REASSEMBLY BE SURE THE MACHINE IS DEPRESSURIZED BEFORE PROCEEDING (See page 13)
Refer to pages 37 38 and 39
Remove the plunger switch rod by lifting this rod up and swinging the bottom portion out and then pulling down Place the plunger switch rod on the drip tray Remove the two hand knobs and pull the head assembly straight out You will find that this is tight as there is an a-ring on this head Remove lever pin pull out handle and plunger
Remove cylinder bushing and pull out the beater shaft holding the knives as you do so Remove rear seal from shaft Take the head and beater shaft assemblies to the washing area Wash all parts thoroughly in a warm detergent solution and then rinse Wash the drain tube and cylinder using the brushes supplied
NOTE Do not dry any parts - reassemble them wet or allow to air dry
NOTE All O-rings must be removed in order to properly wash parts
Remove the DPR Pump from the cabinet in the bottom of the freezer Details on this are given in the pump section of this manual on pages 9-10 following
LUBRICATION AND REASSEMBLY
NOTE We recommend using Petrol Gel or equivalent
Lubricate the a-ring inside the rear seal Place it on the shaft so cup side will be against back of freezing cylinder DO NOT LUBRIGA TE THE GRAY RUBBER SEAL This seal is held under tension against the back of the cylinder when the beater and door are in place The cup seal remains stationary while the shaft turns freely in the plastic bushing Place both blades on the beater shaft and slide the beater into the cylinder Make sure the blades are installed properly The portion of the blade containing 2 knobs should face away from the cylinder walls When inserting the beater place the rear blade on the bottom of the cylinder This will center the beater and allow alignment with the drive coupling Push the beater shaft in and rotate until beater is engaged in the drive coupling The front of the beater shaft when engaged in coupling should be about 12 inside the cylinder Lubricate the inside surface of the cylinder bushing and install in cylinder
CAUTION ALWAYS MAKE SURE THAT THE BEATER BUSHING IS ON THE FRONT OF THE BEATER SHAFT OPERATION WITH A MISSING OR BADLY WORN BEATER BUSHING WILL DAMAGE THE BEATER AND CYLINDER
Lubricate the a-rings on the dispensing plunger and insert the plunger half way into the head Insert the plunger handle and lock in place with the lever pin Lubricate the 4 a-ring and slide the head assembly over the two cylinder studs Replace the two hand knobs and tighten the head on the cylinder DO NOT overtighten the knobs If leakage occurs check the 4 a-ring Replace the plunger switch rod
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALllY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
9
10
DPR PUMP OPERATION AND MAINTENANCE A CAUTION ALL CONTROL SWITCHES MUST BE IN THE OFF POSITION AND THE MAIN POWER SUPPLY DISCONNECTED FOR DISASSEMBLY AND REASSEMBLY
DISASSEMBLY
Step 1 - Reference DPR pump breakdown pages 40 and 41 for assistance in identificashytion of pump parts and their associated reference numbers If the pump has been in operation be sure that it is depressurized before proceeding to step 2
Step 2 - Remove attached mix hoses and pump cover (Ref 46)
Step 3 - loosen the thumb screw (Ref 18) and swing away the clamp (Ref 16) Carefully remove the entire pump assembly from the pump support (Ref 2)
Step 4 - Remove wing nuts diaphragm housing and diaphragm (Ref 41 42 and 43)
Step 5 - Further disassemble the pump by removing the piston assembly including the piston connecting rod and wrist pin (Ref 20 21 and 23) Separate the wrist pin and connecting rod from the piston Remove the curved air tube air meter outlet hose adapter and cylinder (Ref 24 31 44 and 45) from the valve housing assembly (Ref 27)
Step 6 - Grasp the outlet hose adapter asembly (Ref 31) and remove the keeper (Ref 39) while pressing inward on the drain port (Ref 35) Carefully lift and remove retainer clip (Ref 30) Caution must be exercised when removing the retainer clip as the relief mechanism parts (Ref 33 34 and 35) are spring loaded Remove the piston spring and drain port
Step 7 - Remove all a-rings rubber sleeve (Ref 29) and washer valve (Ref 25) All parts disassembled in steps 2 through 7 should be washed thoroughly in a solution of mild detergent and water not exceeding 120deg F Rinse all parts
NOTE All O-rings must be removed in order to properly wash parts
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Mohne illinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
LUBRICATION AND REASSEMBLY
Reassemble by reversing the steps on page 10 and lubricate as follows
When replacing the flat rubber washer (Ref 25) DO NOT LUBRICATE Important -This rubber washer acts as the air and mix check valve and must lie flat against the top of the pump valve housing Install it over the mushroom cap and move it around to make sure that it is sealed Ins~n the sleeve (Ref 29) Like the washer valve this should not be lubricated and fits on the pump valve housing with the tapper to the bottom
All the O-rings on the pump should be lubricated lightly The O-ring on the piston (Ref 21) should be lubricated liberally as this is the major wearing O-ring and must provide a good seal
Install the O-ring and spring on the piston (Ref 33) Lightly lubricate the O-ring (only enough to make it shiny) Install the piston with the O-ring end in first Lubricate the O-ring on the drain port and install it in the adapter Push in on the drain port and slide the clamp over the top to lock it in place Place the keeper (Ref 39) over the exposed end of the drain port and install the hose and clamp on the drain port Install the pressure switch diaphragm in the diaphragm housing
The pressure switch diaphragm (Ref 43) requires no lubrication
Install the diaphragm housing and diaphragm on the two studs and tighten wing nuts hand tight Install the pump assembly on the bracket-drive assembly in the refrigerated cabinet The shoulder of the white bushing (Ref 19) faces the drive cam (Ref 13) when slid into place properly Be sure to insert the mix output body (Ref 31) over the diaphragm housing (Ref 42) Return swing and adjusting clamp to closed position and tighten thumb screw Replace mix hoses and tighten all hose clamps
NOTE The pump will not operate without the cover (Ref 46) in place
WARNING
MAKE SURE ALL HOSE CONNECTIONS AND THE SWING A CLAMP ARE TIGHT BEFORE PRESSURIZING MACHINE THIS SYSTEM PRODUCES 30-32 PSI DURING NORMAL OPERATION
11
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH PrIntId USA
12
SANITIZING INSTRUCTIONS
The washing and sanitizing instructions explained in this manual are required to maintain a clean sanitary machine Your Soft Serve machine should be disassembled cleaned and sanitized to insure the best possible product and machine operation
Prepare a solution of sanitizing water (for each barrel) in a 2-3 gallon container (Solution should be 200 PPM chlorine using Diversol or equivalent) Place the container in the refrigerated cabinet and insert the mix inlet hoSe or stainless steel mix tube in the sanitizer Turn the pump switch ON (located at front of machine) and allow the pump to build up pressure and shut off automatically Turn the selector switch to the CLEAN OUT position and allow the beater to run for 5 minutes This insures the sanitizing solution touching all of the internal parts Placing a container under the dispensing head release the solution from the cylinder by depressing the dispensing handle Do this slowly as the cylinder is under 30 pounds pressure HINT Remove serrated nozzle (Ref 2) for this operation Sanitize nozzle and install when mix is ready to be dispensed Leave the dispensing handle down until the pump has forced all or most all of the solution through the machine When completed turn the selector switch and pump switch OFF You are now ready to start your freezer
You are working with a pressurized machine Always check for possible leaks when sanitizing your machine A leak around the head is obvious and usually calls for the replacement of the dispensing head O-rings A leak in the shaft seal will flow out of the drain tube just below the dispensing head This usually requires the replacement of the shaft seal or shaft seal O-ring Any leakage in the pump would require that the O-ring be replaced at the point of leakage
NOTE Sanitizing is always done prior to starting the machine Never sanitize the day belore and let the machine sit overnight
START UP INSTRUCTIONS
After sanitizing immediately fitl the container with mix Place the mix inlet hose or stainless steel mix tube in the container of mix (If you are using a plastic bag container supshyplied by the dairy it is recommended that you notch the plastic hose or use a perforated mix can tube so that the bag cannot be drawn into the mix inlet restricting the flow of mix If not careful a hole can be made in the bag) Sanitizer will remain in the pump mix hose and cylinder Turn the pump switch on starting the pump and depress the dispensing handle opening the dispensing plunger Leave the dispensing plunger open until you receive
pure mix at the nozzle The mix will push the remaining sanitizer out of the machine if the plunger is left open Close the plunger after removing all remaining sanitizer (See page 20)
After the cylinder is pressurized and the pump has shut off place the selector switch in the AUTOMATIC position At this pOint make sure the cabinet switch is at the ON position and the thermostat switch is at the DAY position Allow the machine to cycle and freeze down Normally several refrigeration cycles will be needed before a frozen product can be dispensed
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
It is impossible to start the freezer and not have excess air in the cylinder Since you have air in the cylinder and the pump is also adding air to the mix on first start up you will have air pockets in the cylinder These pockets can be eliminated if after two or three cycles you will turn the selector switch to the OFF position Pump switch must be at ON position With the selector switch off slowly open the dispensing plunger and bleed off the excess air until liquid mix comes out the dispensing head Close dispensing handle allow the cylinder to fill and turn selector switch to AUTOMATIC At least 30 minutes cycling time should be allowed to insure a ready produ~l
CLEANING PROCEDURE - DRAINING MACHINE
Place selector switch on the front of the machine to CLEAN OUT and let the beater run for about five minutes This will allow the product in the cylinder to soften up Place a clean sanitized container under the dispensing nozzle and very slowly draw off the semishyfrozen cream until liquid mix appears at the nozzle Remove the stainless steel mix tube or mix hose from the mix container Leave the dispensing plunger open until all the mix has run out of the cylinder and place the container in the cooler for storage Place the mix inlet hose in a container of cold water allow the cylinder to pressurize and flush the machine with the selector switch on CLEAN OUT Follow with a container of warm water until machine is rinsed clean Place the selector switch and pump to OFF Refer to disassembly instructions (Ref page 9)
WARNING
YOUR SOFT SERVE MACHINE OPERATES ON 30-32 POUNDS PRESmiddot A SURE NEVER DISMANTLE ANY PART OF THE MACHINE UNLESS THE MACHINE HAS BEEN DEPRESSURIZED THE SELECTOR
SWITCH IS IN THE OFF POSITION AND THE MAIN POWER SUPPLY HAS BEEN DISCONNECTED DEPRESSURIZE THE CYLINDER BY OPENING THE SPIGOT WITH THE PUMP SWITCH IN THE OFF POSITION
CLEANING MIX HOSE
The CAB models use the DPR mix pump You must disconnect the mix hoses and clean them thoroughly USing a long handle brush and a suitable cleanersanitizer you must brush the interior of the mix hose to insure there is no build up of product on the walls of the hose Water temperature for this cleaning process should be 1800 F to meet some health codes After reassembly pump sanitizer through the hoses
Mfg by H C DUKE amp SON INC 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
13
14
GENERAL INFORMATION OVERRUN ADJUSTMENT
The overrun on your CAB machine equipped with a DPR pump is regulated by the air meter (Item 45-pump parts breakdown) You are supplied with three air metering plugs each containing a different size orifice The smaller the hole the lower the overrun The larger the hole the higher the overrun The orifice or hole in this air meter must be open at all times It is the only source of air into the freezing cylinder Check this daily
The mix will be a determining factor as to the amount of overrun you will be able to achieve Some mixes will accept more air than others thus regulating the size of air meter you can use Test to see which air meter will give you the best overrun and the best tasting shake Run each air meter for one day until you make the determination You may have a slightly higher overrun when you first start up the machine When the machine has run long enough to dispense at least one full cylinder of product you will have the overrun that the machine wil hold the remainder of the day
ADJUSTING PUMP PRESSURE
Only to be performed by a qualified service technician
A WARNING
DISCONNECT MAIN POWER SUPPLY BEFORE REMOVING PANELS
NOTE The pump will not operate without the cover in place
The DPR Pump is controlled by pressure in the mix line acting on the diaphragm (Ref 43) As the pump fills the freezer cylinder with mix pressure builds causing the diaphragm to expand As the diaphragm expands it contacts the button (Ref 51) which in turn depresses the pump pressure switch (Ref 60) The pressure switch button moves inward until the switch is opened turning off the pump motor When product is drawn from the freezer the diaphragm closes the pump pressure switch allowing the pump motor to restart Pump pressure will check the same with air mix or water We suggest the pressure be checked with air pressure only
Step 1 - Remove the rear panel from machine and the pump electrical box cover (Ref 6)
Step 2 - Locate the pressure adjusting nut (Ref 59) Turn the adjusting nut clockwise to increase pressure or counterclockwise to decrease pressure Usually one half turn of the adjusting nut will raise or lower the pressure of the model DPR pump two (2) PSIG
Step 3 - Install a quality pressure gauge in the mix output line Turn main power supply and pump switch to ON pOSition Caution Electrical power present through entire machine Allow the pump to pressurize until it shuts off automatically Observe the gauge pressure reading and disconnect main power supply Repeat the adjustment steps 1 through 3 until the proper pressure is obtained (30 to 32 PSIG) Reinstall the electrical box cover and rear panel
NOTE Pressure tine must be at least 6 fI long in order to obtain an accurate reading
A Pressure Gauge PIN 112791 may be purchased from your local distributor
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
PRESSURE RELIEF ASSEMBLY
The model DPR Pump incorporates a self contained safety pressure relief system The parts included in this assembly are (Ref 30 through 39) Any discharge of mix through the hose (Ref 37) is an indication of excessive pump pressure For corrective action refer to the trouble shooting section of this manual
REFRIGERATION SETTINGS
A WARNING
DISCONNECT MAIN POWER SUPPLY BEFORE REMOVING PANELS
The CAB Soft Serve machine contains two types of temperature control devices the expansion valve and the thermostat (explained in Thermostat Section) The expansion valve meters the flow of refrigerant to the cylinder and must be set correctly to give you maximum production
To locate the expansion valve remove the side panel On the single head CAB machines remove the right side panel The double head machines will have an expansion valve behind both right and left side panels
The expansion valve should only be adjusted by a refrigeration technician with refrigeration test gauges connected to the compressor Adjustments to the valve are shown in the following chart
REFRIGERATION SETTINGS MODEL TYPE OF COOUNG WATER AIR 917CAB 927CAB 957iAa I
Cyl Suction Pressure Rmiddot502 15middot17 (PSIG) 15-17 (PSIG)
9711CAS Cyl Suction Pressure R-502 15middot17 (PSIG) 15middot17 (PSIG)
ALL SOFT SERVE
CABS
Cab Suction Pressure Rmiddot502 Head Pressure Thermostat Differential
8middot10 (PSIG) 230-240 (PSIG)
17degmiddot22deg 7deg~8c
8-10 (PSIG) 230middot315 (PSIG)
17deg_22deg 7c -8deg
NOTE To correctly set the cylinder expansion valve the cabinet thermostat switch An must be in the OFF position (Full counterclockwise) with the compressor running
NOTE To correctly set the cabinet expansion valve the selector switch must be in the OFF position and the cabinet switch in the ON position (With the compressor running)
A refrigeration test gauge must be used when adjusting the suction pressure To reduce the suction pressure turn the adjustment screw on the expansion valve counterclockwise Do not turn more than 14 turn at a time Let the unit operate a sufficient length of time - at least two minutes - to properly read on the gauge the adjustment made
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline illinOIS 61244
SUPERIOR QUAUTY FREEZERS bull SOFt SERVE bull SHAKE bull SLUSH
15
16
THERMOSTATS
A WARNING
DISCONNECT MAIN POWER SUPPLY BEFORE REMOVING PANELS
Thermostat Au is the cabinet refrigeration thermostat The cabinet thermostat operates off of both the day and night switch operation to maintain 44 0 F or lower in the mix storage cabinet This thermostat can be adjusted by rotating the adjustment knob To set this thermostat colder turn the adjustment knob clockwise
CYLINDER THERMOSTAT
The cylinder thermostat is located behind the right side panel (on single head CABs) faCing the front of the machine On the double head CABs like the expansion valve a cylinder thermostat is located behind both the right and left side panels This control has two settings The first is the differential which should be set on 7-8deg F The other side of the control marked HIGH EVENT should be set between 17-220 F
The purpose of the cylinder thermostat is to maintain an 18deg F product during idle periods If the thermostat is set too cold and product is not drawn out of the machine a freeze up condition will result DO NOT run the product below 17deg F
NOTE The settings on the thermostat are ONLY to be used as a guide
For a correct adjustment a thermometer must be used to check the actual product temperature Each thermostat should be set in the field for the product being used Most of the time a temperature setting of between 18deg and 19deg F will maintain a satisfactory product Once the thermostat is set for the mix used it should require no further adjustment
MIg by H C DUKE amp SON INC 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH P~IIIIUSA
THERMOSTAT_________ Turn knob clockwise to make product colder
Differential adjustment
copy
COLDER ~ reg
copy5
2 6Igt
1 7 OFF
copy
THIS ASSEMBLY USED ON LEFT SIDE OF UNIT
RIGHT SIDE USES THIS ASSEMBLY WIO THERMOSTAT A (CAB THERMOSTAT)
MIg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
17
18
MAINTENANCE AND ADJUSTMENT
ONLY TO BE PERFORMED BY A QUALIFIED SERVICE TECHNICIAN
WARNING
MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFF POSITION AND THAT THE MAIN POWER SUPPLY IS DISCONNECTED BEFORE REMOVING PANELS
LUBRICATION INSTRUCTIONS
FAN MOTOR (Air Condenser) Lubricate annually with SAE 10 motor oil in the oil cups
CAUTION DO NOT OVER-LUBRICATE OVER-LUBRICATION CAN DAMAGE MOTOR
GEAR REDUCER The gear reducers are heavy duty worm-geared units manufactured to HC Duke specifications II traces 01 oil are found in the immediate area around the reducer repair the leak (usually an oil seal) and check the oil level When adding oil use only synthetic gear lube in the reducer
NOTE This is a special oil and will not mix with a petroleum base oil Contact your distributor when this oil is needed This oil should be changed at least once a year
OIL LEVEL PLUG
PROPER OIL LEVEL
OIL DRAIN USE SPECIAl PLUG OIL ONLY
USE SPECIAL LOILON=LY-- I
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH ~1U8A
MAINTENANCE AND ADJUSTMENT ONLY TO BE PERFORMED BY A QUALIFIED SERVICE TECHNICIAN
WARNING
MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFFA POSITION AND THAT THE MAIN POWER SUPPLY IS DISCONNECTED BEFORE REMOVING PANELS shy
BEATER MOTOR Beater motors are either single or three phase Capacitor starting is used on the single phase units The beater motor should be inspected and cleaned
WATER COOLED CONDENSER Depending on the condition of your water the condenser on your CAB machine may require cleaning from time to time Usually a restricted flow of water resulting in a high head pressure indicates a dirty condenser The condenser should be flushed out with an acid solution by a qualified service technician
AIR COOLED CONDENSERS At least once a month the face area of the condenser should be inspected for accumulation of dirt and dust Surface dust and dirt can usually be removed with a stiff brush andor vacuum cleaner After brushing hold a light between the fan blades and look through the condenser from the opposite side This procedure will locate those areas where accumulated dirt has lodged between the condenser fins To clean these areas obtain a small tank of nitrogen or C02 with a needle control valve or pressure regulator with a small hose attached and proceed as follows
(1) Place a damp towel or cloth over the face area of the condenser
(2) Open the control valve or regulator on the tank releasing pressure to the coil from the back side cleaning the condenser
(3) Check the condenser periodically with the light and continue the treatment until the fins are clean
For maximum performance replace all worn O-Rings Seals Blades etc
CAUTION USE ORIGINAL OR AUTHORIZED REPLACEMENT PARTS ONLY WITH THIS FREEZER
Mig by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline illinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
19
20
PULLEY ALIGNMENT AND BELT TENSION ONLY TO BE PERFORMED BY A QUALIFIED SERVICE TECHNICIAN
WARNING
A MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFF POSITION AND THAT THE MAIN POWER SUPPLY IS DISCONNECTED
Remove the side panels to expose the pulleys and belts
Check the alignment of the beater motor pulley and gear reducer pulley by placing a straight edge across the faces of the two pulleys If the pulleys are not aligned adjust as necessary until proper alignment is obtained
Depress the belts with a finger at a point midway between the two pulleys When properly adjusted the belts should depress 12 from its normal position with approximately 5 pounds of pressure If the belts are too tight or too loose adjust as necessary until proper belt deflection is obtained Loosen four (4) bolts which hold the motor mounting plate to the frame With these loose adjust tension bolt in or out as required to obtain proper belt tension Retighten bolts
BELTS
Periodically inspect the belts If they are worn excessively replace both belts For best results it is advisable to replace both belts as they are manufactured in matched sets
SCRAPER BLADES
NOTE Be sure to purge all of the sanitizer from the mix system before operating the freezer (see page 12) Failure to completely remove sanitizer or water trom the freezing cylinder before placing the machine in the Automatic position may cause blade breakage and damage the freezer
o o
NEW BlADE WORN BLADE
Replace blades if worn 316 or more
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
END PLAY FOR BEATER DRIVE COUPLING
It is very important that the drive coupling located on the gear reducer be set properly Referring to the Drive Coupling Illustration the following procedure should be followed in setting the end play
WARNING
MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFF POSITION AND THAT THE ELECTRICAL POWER TO THE MACHINE IS DISCONNECTED SO THAT THE UNIT WILL NOT OPERATE
------
DRIVE COUPLING ILLUSTRATION
REF DESCRIPTION REF DESCRIPTION 1 Gear Reducer 6 Reducer Mounting Plate 2 Beater Shaft 7 Set Screws 3 Shaft Seal 8 Bolt Gear Reducer 4 Drive Coupling 9 Bolt Reducer Mounting Plate 5 Spacer 10 Key
11 Output Shaft
Improper drive coupling spacing will damage the beater shaft dispensing head and drive coupling When checking end play settings or replacing a coupling proceed as follows
REMOVING COUPLING
WARNING
DISCONNECT MAIN POWER SUPPLY
Mig by H C DUKE amp SON INC bull 2116 Eighth Allenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SO SERVE bull SHAKE bull SLUSH
21
22
(1) Remove Beater Shaft (Ref 2)
(2) Remove both drive belts (not shown)
(3) Remove gear reducer bolts (Ref 8) Six (6) bolts are located around the face of the reducer
NOTE Remove the top bolt last holding the bottom of the reducer as you do so
(4) Remove the gear reducer (Ref 1) and place-on table or bench
(5) Replace two (2) bolts (Ref 8) one (1) at the top and one (1) at the bottom so that the reducer cover will not come off while the coupling is changed
(6) Loosen the four (4) set screws (Ref 7) and remove the drive coupling (Ref 4) Should the coupling be stuck tight to the ouput shaft lightly tap the coupling from the back with a hammer and bar Sometimes due to age this coupling will stick so tight it will have to be removed with a pulley removing tool or a wheel puller
(7) Remove the key (Ref 10)
INSTALLING THE NEW COUPLING
(1) Clean gear reducer output shaft (Ref 11) with fine emery cloth and slide the new drive coupling on the reducer shaft The coupling should slide on the shaft all the way without the key If the coupling doesnt slide completely on check both coupling and reducer shaft for burrs When a smooth sliding fit is achieved remove coupling and proceed with final assembly
(2) Place key (Ref 10) in keyway slot on the reducer output shaft Keep the key flush with the front end of the output shaft (Ref 11)
(3) Slide the coupling (Ref 4) on the output shaft until it bottoms out on the shaft Leave the four (4) set screws loose as the coupling will have to be adjusted
(4) Remove the two (2) bolts added in preceding Step 5
(5) Place one (1) gear reducer bolt (Ref 8) in the top hole of the cylinder mounting plate
(6) Insert gear reducer into cylinder mounting plate and start top bolt (Ref 8) Do nol tighten completely Now insert the other bolts one at a time When all bolts are in tighten each boll
NOTE Due to very close tolerance between the gear reducer and cylinder mounting plate no alignment is required when Installing the reducer When the reducer bolts are tightened the reducer will seH-align with the cylinder
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
(7) Insert the beater shaft (Ref 2) with the shaft seal and blades into the cylinder and engage beater shaft in the drive coupling Place bushing on front of beater shaft
(8) Tape a dime (10 cents) to the back of the dispensing head in the very center at the point where the beater shaft touches the dispensing head The dime is used to acquire the proper end play setting on the drive coupling which is approximately 332
(9) Place the dispensing head into the cylinder and tighten with the hand knobs Important make sure hand knobs are tight and head is against the end of the cylinder tube
(10) Slide the drive coupling (Ref 4) forward until it is tight against the beater shaft and lock into place the four (4) set screws (Ref n
(11) Remove the dime from the back of the dispensing head
(12) Replace the drive belts
(13) Turn on electrical power
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
23
PANEL BREAKDOWN - 917CAB
~--~
3
REF PART No 1A 114544 1B 112991 2A 136075 2B 136102
3A 137027 3A 137028
3A 136105 3B 136103
3B 134817 4 134818
4 136101 5A 114780
5A 113570 5B 112967
6 112960 7 133291
24 A 917CAB only
I
dJ
DESCRIPTION Frame ssmiddoty Frame ASsmiddoty Lower Side Panel Lower Side Panel LH Side Panel RH Side Panel Upper Side Panel Upper Side Panel Upper Side Panel Rear Panel Rear Panel Top Cover ASsmiddoty Top Cover ASsmiddoty Top Cover ASsmiddoty Filler Panel ASsmiddoty Top Filler Strip
B bull 44 CAB only
~
[At 16 lt0
REF 8
9 10 11 12 12A 13
14 15 16 16A
Air Cooled only
PART No DESCRIPTION 132687 Dispense Panel 134247-01 Dispense Panel Cab-W
Drip Tray (See Pg 35) 114260-01 Door Assmiddoty wIHinges 132444-01 Left Hand Filler Strip 162045 Upper Hinge 162052 Spring LH 162046 Lower Hinge 160026 Screw 160020 Bolt 160139 Washer 110205 Syrup Jar Enclosure 160563-01 Door Gasket 01-Groove) 159174 Drip Tray Button 160293 Clip for Button
Water Cooled only
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
~~
1 ~~o ~o
)
cp I
L~
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 114538 Frame Assy 10 162045 bull Upper Hinge 2 136289 Side Panel LH lOA 162052 Spring LH 3 136313 Rear Panel 11 162046 Lower Hinge 4 114006 Top Panel AC llA 160026 Screw 4A 114428 Top Panel WC l1B 160020 Bolt 4B 114157 Top Panel AC Remote l1C 160139 Washer 5 113983 Front Panel Assy 927CAB 12 136216 Side Panel RH 5A 113985 Front Panel Assy 957cAB 13 160563 Door Gasket (V-Groove) 6 130021 Rear Corner Channel RH 14 159174 Drip Tray Button 6A 135254 Rear Corner Channel LH 14A 160293 Clip for Button 7 137228 Dispensing Panel 162108 Stop Pin (Screw In) 8 Drip Tray (See Pg 35) 136199 Door Pull 9 114260 Door Assy wHinges
25
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
SOFT SERVE CAB ELECTRICAL BOX
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 Contactor (Order By Freezer 5 150463 Selector Switch
Serial Number) 6 159235 Toggle Switch (Pump) 2 Overload (Order By Freezer 7 150456 Spigot Switch
Serial Number) 7A 136124 Button - Spigot Switch 2A Heater Coil (Order By Freezer 7B 162302 Spring - Spigot Switch
Serial Number) 8 150553 Pilot Light - Amber 3 Starter (Order By Freezer 9 150552 Pilot Light - Red
Serial Number) 10 161026 Thermometer (Not Shown) 4 150208 Timer
26
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Pointed u
- - --- -
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prifllcl If USA
In-
ca ~ Q ltC wr w I
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SOFT-SERVE - SINGLE HEAD CAB
REF PART No 1 151351
2 3 4 5 6 151044
151052 7
8 155039 9 155400 10 155117
11 151084
12A 159021 13 155401 13A 155423 14 155403 15 155422
16 154976 16 154975 17 159203 18 155051 19 112901
155410 20 155044
151348
DESCRIPTION Capacitor Relay Assembly (single phase)
150247 Start Capacitor
150249 Run Capacitor 150245 Relay Motor Capacitors (order by freezer serial no) Gear Reducer (see gear reducer breakdown page 36) Driven Pulley (order by freezer serial no) Belt (order by freezer serial no) Motor 1-phase 230 volt Motor 3-phase 208230 volt Driver Pulley (order by freezer serial no)
Water Condenser Automatic Expansion Valve (Cylinder) Air Condenser
Condenser Fan Motor
Condenser Fan Blade High Pressure Cut-Out shyHigh Pressure Cut-Out shyLow Pressure Cut-Out Solenoid Valve
Compressor 230160
AC WC
Compressor 208-230360 Sight Glass Drier (38) Receiver Tank Assembly Water Valve (not shown) Service Valve Compressor Mounting Kit
Note I) lt0 For All 50-Cycle Freezers Order By Freezer Serial Number
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Printad I usA
30
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SOFT-SERVE - DOUBLE CAB - WATER COOLED REF PART No DESCRIPTION 1 155026 Water Condenser (B-side) 1 A 155039 Water Condenser (A-side) 2 159203 Sight Glass 3 155051 Drier (38) 4 155400 Automatic Expansion Valve (Cylinder) 5 Gear Reducer (see gear reducer breakdown page 36) 6 155410 Water Valve 7 155423 High Pressure Cut-Out 8 155403 Low Pressure Cut-Out 9 154976 Compressor 230160
151351 Capacitor Relay Assembly (Single Phase) 150247 Start Capacitor 150249 Run Capacitor 150245 Relay
9A 154975 Compressor 208-230360~-11 NOT USED ON THIS MODEL 12 155442 Low Temp Control 13 Driven Pulley (order by freezer serial no) 14 Belt (order by freezer serial no) 15 Driver Pulley (order by freezer serial no) 16 155422 Solenoid Valve 17 151044 Motor 1 phase 230 volt 17A 151052 Motor 3 phase 208230 volt 18 Motor Capacitors single phase only (order by freezer serial no)
Note For All 50-Cycle Freezers Order By Freezer Serial Number
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Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH _InU5A
32
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SOFTmiddotSERVE bull DOUBLE CAB - AIR COOLED REF PART No 1 155120 2 159020 3 151080 4 155400 5 6 159203 7 155051 8 112901 9 151044 9A 151052 10 11 12 14 154976
14A 154975 15 155401 16 155403 17 155443 18 155442 19
21 155422
DESCRIPTION Condenser Fan Blade Fan Motor Automatic Expansion Valve (Cylinder) Reducer (see gear reducer breakdown page 36) Sight Glass Drier Receiver Assembly Motor 1-Phase 230 Volt Motor 3-Phase 208230 Volt Driven Pulley (order by freezer serial no) Belt (ordr by freezer serial no) Driver Pulley (order by freezer serial no) Compressor 230160 151351 Capacitor Relay Assembly (Single Phase)
150247 Start Capacitor 150249 Run Capacitor 150245 Relay
Compressor 208-230360 High Pressure Cut-Out Low Pressure Cut-Out Cabinet Thermostat Low Temp Thermostat NOT USED ON THIS MODEL Motor Capacitors single phase only (order by freezer serial no) Solenoid Valve
Note For All 50-Cycle Freezers Order By Freezer Serial Number
Vl Vl
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prinled In USA
CAB PARTS BREAKDOWN
REF PART No DESCRIPTION PART No DESCRIPTION 1 155109 Cabinet Coil 136297 Condensate Pan (Not Shown) 1A 155113 Motor Cabinet Fan 196092 Mix Tank 7-12 Gal 1B 155099 Fan Blade Cabinet Coil 113997 Front Lid Mix Container
7-12 Gal 136248-01 Rear Lid Mix Cont 7-12 Gal
10 155416 CAB Automatic Expansion 130092 Mix Tube Valve 196028 Mix Tank 10 Gal
137119 Probe 11 -1 4 shy1E 155114 Fan Grill amp Bracket 7-12 Gal Container 1F 155116 Knob 137119-01 Probe 10-34 shy2 113898 DPR Pump Less Motor 7-12 amp 10
(see pump breakdown Gal Container pg 38) 137119-02 Probe 10-14 shy
3 196061 Mix Hose (sold by the foot) 10 Gal Container 4 150416 Door Switch 137120 Base Probe Mtg 4A 114630 Actuator Door Switch 160500 O-Ring
(Not Shown) 114572 Hose Clamp (Not Shown) 5 150527 Retractable Cordset 34
MIg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prlmd UsA
MERCHANDISING ASSY
PART No 115108 115107
PART No
196107-01 196108-01 114610 114608 115132 199030
PART No 162105 162106 112978 158004 158021 158022 158078 158000 158056 158000A 158014 158014A 161000 158049
DESCRIPTION 2S Merchandiser-927-957-978CAB 24 Merchandiser-917CAB
DRIP TRAY
DESCRIPTION
24 Drip Tray-917CAB 26- Drip Tray-927-957-978CAB 24 Tray Insert-917CAD 26 Tray Insert-978CAB-927CAB 26 Tray Insert-957CAB Rubber Bumper (only)
DESCRIPTION Caster With Brake Caster Without Brake Leg-6 4 Cylinder Brush Mix Hose Brush 58 Dia w6 Ft Handle 14 Pump Brush Drain Tube Brush Petrol Gel (12 tube carton) Petrol Gel (6 tube carton) Pe1rol Gel (per tube) Stera Sheen (per case) Stera Sheen (per jar) Pocket Thermometer 1 Dial Z32 Overrun Scale
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SNAKE bull SLUSH
35
36
GEAR REDUCERS Order By Freezer Serial Number
Model 3 CB
153345 5-1 Ratio B side 153004 High Speed Cup ~ (2 ea required) 153005 High Speed Bearing (2 ea required) 153008 Slow Speed Cup (2 ea required) 153009 Slow Speed Bearing (2 ea required) 153052 Slow Speed Seal (2 ea required) 153054 High Speed Seal (2 ea required) 153313 Brass Gear 5-1 Ratio 153336 Slow Speed Shaft Only 5-1 Ratio 153316 Worm Gear On Shaft 5-1 Ratio 114873 Gasket Set
Model 4 CB
153342 10-1 Ratio A side 153343 10-1 Ratio B side
153014 High Speed Cup (2 ea required) 153015 High Speed Bearing (2 ea required) 153011 Slow Speed Cup (2 ea required) 153012 Slow Speed Bearing (2 ea required) 153051 Slow Speed Seal (2 ea required) 153053 High Speed Seal (2 ea required) 153349 Brass Gear 10-1 Ratio 153339 Slow Speed Shaft OnIy 10-1 Ratio 153347 Worm Gear on Shaft 10-1 Ratio 114874 Gasket Set
Winlwin Model
153341 Wintwin 10-1 Ratio A and B Side
153014 High Speed Cup (2 ea required) 153015 High Speed Bearing (2 ea required) 153011 Slow Speed Cup (2 ea required) 153012 Slow Speed Bearing (2 ea required) 153051 Slow Speed Seal (2 ea required) 153053 High Speed Seal (2 ea required) 153349 Brass Gear 153350 Slow Speed Shaft Only 153348 Worm Gear on Shaft 11 4874 Gasket Set
158055 Gear Reducer OU 51001
Drive Coupling (Order By Machine Serial Number)
Mfg by H C DUKE amp SON INC bull 2115 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
917 amp 927 Beater Shaft Assembly
957 Beater Shaft
Item Part No Description
1 196079 Bushing-Cylinder 2 114752 Beater-Assy Long (Shaft) 3 137334 Blade-Scraper Soft Serve 4- 160500 O-Ring (Shaft Seal) 5- 133098 Bushing (Washer-Shaft Seal) 6 160557 Seal-Beater Shaft
-Items 4-6 111875 Seal-Assy Shaft (Complete)
31
1 113438 2 196079 3 137334 4- 160500 5- 133098 6 160557
-Items 4-6 111875
Shaft-Assy Beater Bushing-Cylinder Blade-Scraper O-ring (Shaft Seal) Washer-Shaft Seal (Bushing) Seal-Beater Shaft (Cup)
Seal-Assy Shaft (Complete)
ao
DISPENSING HEAD
16
r
Q
--~
-----_
REF PART No DESCRIPTION Tl3o 6 119928- Door Assembly shy Complete (Items 7-14) 11637- 7 196688 Door shy Less Parts
a 134921 Spigot shy Less Extension 9 134922 Handle Extension shy Spigot
10 162624 Handle 11 159295 OmiddotRings shy Spigot (Lots of 5)12 159309 O-ring shy 4 - Door 13 196066 Air Relief Screw 14 160621 a-Ring shy Air Relief Screw (Lots of 5)15 136126 Rod - Spigot Switch shy 917 8 927 16 136798 HMdKnob
38
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illmols 61244
SUPERIOR QUAUlY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
Duke Soft Serve Freezer Models 917R and 927RN
5 -______
7
6
UPDATEDDispense Head Assembly
Item Part No
115130 1 116321 2 160583 3 115129 4 160562 5 136126 6 134921 SA 162624 68 134922 7 159295 8 160584 9 162625 9A 114341 10 196185 10A 137870 108 136713
116410
Includes items 1-4 6-8
Description
Head-Assy Dispense (Complete) Head-Assy wActualor O-ring (Head-4-inch) Bleeder-Assy (Air Relief Plug) O-ring (Bleeder-Assy) Rod-Spigot Switch Spigot-long Single Handle-Black Tapered Handle-Spigot (Stainless Steel) O-ring (Spigot) O-ring (Extension) Knob-Hand Stud-Assy Cylinder 1-15116 inch (not shown) Nouie-Slar Adapter (accessory) Adapter-Yogurt Nozzle (not shown) Extension-Spigot (accessory-cake not shown) Kit-Dispense Head Switch
( Use only original or authorized replacement parts with this freezer )
DISPENSING HEAD
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH uu
REF PART No 114765
1 196082 2 114313 3 137018 5 136618 6 162626 8 134499 9 162625
10 115129 11 136794 12 159309 13 159295 14 160562 15 136713 16 160584
DESCRIPTION Door Assy-Complete Door-Less Parts Spigot Assy-Side Spigot Only-Center Extension Only-Center Handle Stud-Handle Stop Hand Knob Air Re1ief-Assy Rod-Spigot Switch O-Ring-4-Door O-Ring-Spigot O-Ring-Air Relief Extension-Spigot a-Ring
39
40
PUMP MOTOR AND HOUSING ASSEMBLY SAFETY SWITCH ASSEMBLY
PRESSURE SWITCH ASSEMBLY ijreg~
I
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH IIIUaA
CAB DPR PUMP BREAKDOWN
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 196091 Pump Base 46 114009 Pump Cover 2 136088 Pump Support 47 113464 Base Bracket Assembly 3 150784 Strain Relief Bushing 48 135725 Stud 1-78 4 Power Cord 49 160131 516 Flatwasher 5 160075 10-24 x 38 Screw 50 160293 Speed Clip 6 135416 Cover Electric Box 51 135724 Button 7 160141 14 Lockwasher 52 160140 10 Lockwasher 8 160491 14-20 x 34 Socket Screw 53 135726 Stud 3 9 113497 Motor Cord 18-3 SJT 54 160109 10-24 Hex Nut 10 151127 Motor 40 RPM Soft Serve 55 135729 Switch Actuator 11 160023 14-20 x 1 Screw 56 135731 Stop - Max Pressure 12 153317 Half Moon Key 57 162315 Spring - Soft Serve 13 112925 Cam Drive Plate Assembly 58 160138 10 Flat Washer 14 160495 14-20 x 14 Set Screw 59 160304 10-24 Stop Nut 15 160369 Pin 60 150456 Pressure Switch 16 134614 Swing Clamp 61 135744 Insulator - Fiber 17 134521 Adjusting Clamp 62 160381 6-32 x 1 Socket Screw 18 160488 Thumb Screw 63 160393 6 Flatwasher 19 134604 Bearing Bushing 64 160146 6 Lockwasher 20 134602 Connecting Rod 65 160309 6-32 Hex Nut 21 134601 Piston 66 160006 6-32 x 14 Screw 22 159295 O-Ring 67 160001 8-32 x 38 Screw 23 134603 Wrist Pin 68 160470 8 Lockwasher 24 136089 Cylinder 69 150481 Circuit Breaker 25 199011 Washer Valve 70 135727 Switch Bracket 26 159282 O-Ring 71 136311 Spacer - Cover Switch 27 113839 Pump Valve Housing 72 160028 Truss Head Screw
Assembly (Metal) 14-20 x 34 SST 28 160582 O-Ring 73 160141 Lockwasher 14 29 199020 Sleeve Rubber 74 160104 Hex Nut 14-20 30 135793 Retainer Clip 75 136312 Button Guard 31 135791 Adapter Hose Outlet 76 160020 Hex Hd Cap Screw 32 160581 O-Ring 14-20 x 1 SST 33 135790 Piston 77 113869 Switch Bracket 34 162308 Spring Soft Serve 78 136110 Button Cover Switch 35 135792 Drain Port 79 162314 Spring 36 160611 O-Ring 80 150456 Switch Pump Safety 37 135896 Hose 24 81 135004 Switch Cover 38 160738 Hose Clamp 82 160296 Screw RH 39 136288 Keeper 6-32 x 1-14 40 160554 O-Ring 83 160146 Lockwasher 6 41 160368 Wing Nut Int Tooth 42 130054 Diaphragm Housing 84 160393 Flatwasher 6 43 199019 Diaphragm 85 160309 Hex Nut 6-32 44 196074 Air Tube-Curved 86 114572 Hose Clamp 45 163433 Air Meter - 20 87 160048 14-20 x 12 TRHM
(other sizes available) 88 160308 6-32 x 516 RDHM 89 114581 Circuit Breaker Bracket
Not Shown 90 163109 Stop Pivot 112791 DPR Pressure Gauge
41
Mfg by H C DUKE amp SON INC 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
42
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Unit does not operate 1 Fuse blown at main disconshy 1 Check fuse size check for low nect voltage if not within 10 of
nameplate rating install transformer or call power company
2 Beater motor out on overload 2 Press starter reset button and check for low voltage Check producllemperalure and overrun
3 Disconnected or broken wife 3 Check wiring and wire connecshyin electrical circuit lions repair or replace lead
wires as necessary
4 Faulty selector switch 4 Replace selector switch
5 Out on high pressure 5 Check for low waler supply or dirty air conden ser
6 Out on low pressure 6 Check limit control and freon charge
Compressor does not operate f Troubte in compressor con- I Refer to Trouble-Shootingshyor operates improperly densing circuit Compressor I Condensing
Circuit
2 Faulty capacitor assembly 2 Replace capaCitor assembly (Single phase only)
3 Faulty contactor 3 Replace contaclOr or pOints
Compressor operates but 1 Loose con neclion at motor 1 Tighten connection beater motor does not starter coil (electrical box)
2 Open starter coil 2 Replace coil
3 Faulty capacitor assembly 3 Replace capaCitor assembly (Single phase only)
Dispensed product too hard 1 Cylinder themostat erratic 1 Adjust thermo slat or replace or set too low
2 Faulty time delay relay 2 Replace time delay relay
3 Solenoid valve leaking 3 Replace solenoid valve
4 Low suction pressure 4 See chart on page 15 for adshyjustments
Leaking of mix from rear housshy 1 Damaged bealer shalt seal 1 Replace shaft seal or O-ring ing discharge tube to drip tray inside seal assy
Mig by H C DUKE amp SON INC bull 2116 Eighlh Avenue Easl Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Mix leaking at dispensing head 1 Faulty 4 O-Ring
2 Head not properly installed
1 Replace 4 O-Ring
2 Install head properly
Mix sours in cabinet 1 Cabinet thermostat setting too high
2 Cabinet thermostat detective
3 Cabinet solenoid valve deshyfective
4 Cabinet switch defective
5 Beater motor out on overshyload (cab side)
1 Adjust thermostat
2 Replace thermostat
3 Replace coil or solenoid
4 Replace cabinet switch
S Reset overload for beater motor See pg 42 unit does not operate
Cabinet too COld
Machine runs continually and Product continues to get colder
Compressor operates only when dispensing
Unit runs conMuously Product does nol reach 180 F temperature
6 Door sWitch defectIVe
1 Cabinet thermostat setting too low
2 Defective thermostat
3 Cabinet solenoid stuck open
4 Cabinet expansion valve set too low
1 Plunger switch out of adjustshyment
2 Su ction pressure too low
3 Defective plunger switch
4 Plunger switch rod engaged
5 Faulty time delay relay
6 Starter or relay contacts stuck
7 Faulty thermostat or bulb not deep enough in well
6 Replace door SWitch
1 Adjust thermostat
2 Replace thermostat
3 Replace solenoid
4 Adjust cabinet expansion valve (See pg 15)
1 Adjust plunger switch
2 Adjust expansion valve and check freon charge
3 Replace plunger switch
4 Close plunger completely
5 Replace time delay relay
I 6 Check contacts i
7 Check bulb location or replace thermostat
1 Cylinder themostat setting 1 Adjust thermostat or replace too high or thermostat deshyfective
1 Trouble in compressor I condensing system
2 ExpanSion valve setiing is too high
3 Low on refrigeranl
1 See Trouble-Shooling-CompressorI Condensing circuit
2 Adjust expansion valve
3 Check and repair leak and recharge
1
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE SLUSHbull
43
44
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Dispensed product too soft (Product temperature above 21 0 F)
1 Automatic expansion yalve incorrectly set or erratic in operation
-2 Leak in refrigeration system
resulting in little or no refrigeration
1 Adjust or replace expanSion valve
2 Pump down system or remove refrigerant charge repair leak evacuate and recharge
3 Excessive oil in system 3 Drain compressor to proper oil leyel pump down and flush system
4 Thermostat set too high taulty
or 4 Adiust thermostat or replace
Product dispenses slOWly out dispensing head
1 Reverse rotation 1 Change rotation to clockshywise from front of freezer
2 Dispensing speed adjustshyment boll too far down
2 Adjust bolt upward
3 Pum p problem 3 See pump Trouble-Shooting chart
4 Product too cold 4 See dispensed product too hard pg42
TROUBLE-SHOOTING CHART COMPRESSORICONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor will not start -hums intermittently (cycling on oyerload)
1 Improperly wired
2 Low line Yoltage
3 Open starting capacitor (single phase only)
4 High discharge pressure
1 Check wiring against diagram
2 Ask power company to increase YOltage to not less than 10 below nameplate rating or install transformer Check for inadequate wire size
3 Replace starting capacitor
4 CheCK water regulating valve setting Check water or air condenser and clean if necessary Make sure disshycharge shut-oft valve is open
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor starts but remains 1 Low line voltage 1 Ask power company to in start windings increase voltage to not less (Single phase only) than 10 below nameplate
rating or install transrormer
2 Improperly wired 2 Check wiring against drawing Check wire size
3 Running capacitor shorted 3 Check by disconnecting running capacitor
4 Starting capacitor weak 4 Check capacitor replace
5 High disCharge pressure 5 Check water regulating valve check water or air condenser and clean il necessary Check discharge shut-off valve
Starter burned out 1 Low line voltage 1 Ask power company to inshycrease voltage to not less than 10 below nameplate rating or install transformer
2 Excessive line voltage 2 Ask power company to reduce voltage to maximum of 10 over nameplate rating
Starting capacitors burn out 1 Voltage 100 low 1 Ask power company to (Single phase only) increase voltage to not less
than 10 below nameplate rating or install translonmer
2 Improper capacitor 2 Replace capacitor with properly rated capacitor as listed in manual
Running capacitors burn out 1 Excessive line voltage 1 Ask power company to reshy(Single phase only) duce line voltage to not more
than 10 above rating 01 motor
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
45
46
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Unit operates long or continuously
1 Shortage of gas
2 Dirty condenser
3 Moisture in system
4 Compressor failing
1 Repair leak and recharge
2 Clean condenser
3 Evacuate and recharge system
4 Check compressor lor proper pressures If inadequate replace compressor
Head pressure too high 1 Refrigerant overcharge
2 Air in system
3 Dirty condenser (air cooled)
4 Unit location too warm (air cooled)
5 Restricted water cooled condenser
6 Water turned off or defective
1 Purge system
2 Purge system evacuate and recharge
3 Clean condenser
4 Relocate unIt away from restriction Place nothing against back or on top of unit
5 Clean or replace condenser
6 Turn on water Or replace water regulating valve regulating valve
Head pressure too low 1 Shortage 01 refrigerant 1 Repair leak and recharge
2 Water regulating valve open 2 Adjust regulating valve too wide
Water 1I0wing through water 1 Water regulating valve 1 Replace water regulating valve waste line when unit is not in operation
defective
Noisy compressor 1 Tubing raUle 1 Bend tubes away from contact
NOTE Refer to warranty card prior to compressor replacement
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING DPR PUMP
TROUBLE PROBABLE CAUSE REMEDY
Pump will not run 1 Pump cover removed 1 Install pump cover
2 Pressure switch actuating 2 Free bulton-check spring and
bulton stuck open (in) pressure switch alignment
3 Pressure switch burned out 3 Replace pressure switch
4 Starting switch in motor bad 4 Install new starting switch
5 Motor burned out 5 Replace motor
6 Circuit breaker kicked out 6 Allow to re- set Replace it or faulty circuit breaker will not
automatically re-set
Motor runs-cam drive plate 1 Loose cam drive plate 1 Tighten set screw in cam will not turn drive plate Check woodruff key
2 Gear stripped 2 Replace gear
Pump will not shut off Mix 1 Pressure swilch actuating 1 Free button-check pressure shoots out pressure relief bulton stuck closed (out) switch alignment
2 Pressure switch stuck in 2 Replace pressure switch closed position
3 Pressure switch assy out 3 Using pressure gauge adjust of adjustment pressure
4 Dirty or plugged diaphragm 4 Disassemble and clean housing (Ref 42) housing
5 Defective O-Ring on 5 Replace O-Ring pressure relief piston
Pump will not prime 1 Insufficient supply of mix 1 Replenish mix supply
2 Piston O-ring defective-no 2 Replace piston O-Ring and suction lubricate
3 Washer valve not sealing 3 Replace washer valve DO NOT LUBRICATE
Pump primes No pressure in 1 Sleeve (Rei 29) not sealing 1 Replace sleeve DO NOT cylinder properly LUBRICATE
2 Loose hose connection on 2 Install or tighten hose clamp pump valve housing (Ref 27)
Mix shoots out Of air intake line 1 Washer valve (Ref 25) 1 Replace washer valve-DO not sealing properly NOT LUBRICATE
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOfT SERVE bull SHAKE bull SLUSH
47
48
TROUBLE-SHOOTING DPR PUMP
Too much air overrun too high-popping problems
Product dispenses slowly out of disPenSing head
1 Air meter too large (Ref 45)
2 Air leak befween mix conshytainer and mix inlet
3 Air line hose crackedshysucking air (Ref 44)
4 Pump pressure too lowshycylinder not full
1 Pump pressure too low
2 PrOduct too cold
3 Low overrun
Diaphragm housing leaking mix 1 Diaphragm housing loose
2 Diaphragm defective
Piston drive assy noisy 1 Bushing bearing worn
2 Defective gear in gear motor
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SIfAKE bull SLUSH
REMEDY
1 Replace washer valve-DO NOT LUBRICATE
2 Install clamp on hose
1 Replace O-Ring and LUBRIshyCATE
1 Clean or replace air meter
2 Replace tube
1 Install smaller air meier
2 Repair as needed
3 Replace air line hose
4 Using pressure gauge adjust pressure switch
1 Using pressure gauge adjust pump pressure
2 Check product temperatureshyshould be about 18 F
3 Check meter-if plugged-clean
1 Tighten wing nuls (Ref 41)
2 Replace diaphragm (Ref 43)
1 Replace bushing bearing (Ref 19)
2 Replace gear
TROUBLE
Mix inlet hose loses prime
Mix on top of piston
PROBABLE CAUSE
1 Washer valve (Ref 25) not sealing properly
2 Mix inlet hose loose
1 Piston O-Ring leaking (Ref 22)
No Air (Overrun) 11 Ai r meter plugged (Ref I 45)
2 Curved air tube pinched
--
DPR PUMP aI
PART NO 199019(i) PART NO 199020 reg DIAPHRAGM RUBBER SLEEVE
PART NO159295 PART NO 159282reg O-RING O-RING0
PART NO 160581reg O-RING
o PART NO PART NO
PART NO199011() 160611(8) 160582 WASHER VALVE O-RING O-RING
PISTON
cJ
DIAPHRAGM HOUSING
CYLINDER
VALVE HOUSIN6 ASSEMBLY
PUUPOUTLET
DRAIN PORT
I PHNO309-755-4553 O-RING CHART HCDUKEampSONINC I
1 I84Z08 SOFT SERVE DISPENSING HEADS I
o PART NO 1605620
PAR~159--1b
PART NO PART NO 1605841 59295()
I PHNO 309-755-4553 O-R ING CHART HCDUKEampSONINC I
- Cover
- Table of Contents
- Safety
- Uncrating amp Inspection13
- Explanation of Electrical Controls
- Operation of Machine
- General Information
- Maintenance amp Adjustment
- Parts Breakdowns
- Trouble-Shooting Charts
- O-ring Charts
-
6
CAUTION SWITCHES 1 2 and 4 DO NOT SHUT OFF THE SUPPLY OF POWER TO THE MACHINE THIS ONLY PREVENTS THE CONTROLS FROM OPERATING IF ANY
A ELECTRICAL REPAIRS ARE REQUIRED DISCONNECT THE MAIN POWER SUPPLY TO THE MACHINE AT THE CONTROL PANEL OR FUSE PANEL
PLUNGER SWITCHmiddot This switch only works in the day mode when the selector switch is in the AUTO position When the dispensing handle is pulled down the plunger switch rod raises and engages the plunger switch to turn on the beater motor and compressor The plunger switch activates the time delay and overrides the thermostat When the dispensing plunger is returned to the closed position the machine will continue to run for 12 seconds on the time delay and will then turn off unless the termostat requires additional refrigeration
DISPENSING SPEED ADJUSTMENT
WARNING
A MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFF POSImiddot TION AND THAT THE MAIN POWER SUPPLY IS DISCONNECTED
All soft serve machines have a dispensing speed adjustment To make this adjustment it is necessary to remove the merchandiser and cover from in front of the electrical box Upon removal of this panel you will see the plunger switch mounting bracket (see page 26) At the top of this bracket is the adjusting screw After loosening the lock nut adjust the screw as required The further down you turn this screw the slower the product will come out If you do this with patience you can adjust the machine to the point where the unit cannot be outdrawn (turn to a product that is too soft)
CAUTION ADJUSTING THE SCREW TOO FAR DOWN CAN CAUSE THE MACHINE TO FREEZE UP
TEST OF INSTALLATION
Remove the dispensing head and beater shaft (See Washing Instructions) so that the unit can be tested Turn on the pump switch (pump cover must be in place) to insure that the pump is running turn switch off Turn the following switches on in this order (1) Thermostat switch DAY (2) Cabinet Switch ON and (3) selector switch AUTOMATIC Let the unit run and at this pOint check beater rotation (clockwise from front) frost line in cylinder (front to back) and cabinet refrigeration Allow the unit to run until it shuts of automatically Should you have a short cycle (machine turns on then off every 10 or 15 seconds) check the water inlet manual valve Insufficient supply of water to the machine will give you this short cycle After the machine turns off automatically turn the selector and cabinet refrigeration switch OFF Cabinet refrigeration system will not operate when cabinet door is open
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Molme illinOIS 61244
SUPERIOR QUALIlY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
OPERATION OF MACHINE DISASSEMBLY AND WASHING
Your Soft Serve machine has been completely tested at the factory It is important that the machine be dismantled washed and lubricated before operation
CAUTION ALL CONTROL SWITCHES MUST BE IN THE OFF POSITION AND THE MAIN POWER SUPPLY DISCONNECTED FOR DISASSEMBLY AND REASSEMBLY BE SURE THE MACHINE IS DEPRESSURIZED BEFORE PROCEEDING (See page 13)
Refer to pages 37 38 and 39
Remove the plunger switch rod by lifting this rod up and swinging the bottom portion out and then pulling down Place the plunger switch rod on the drip tray Remove the two hand knobs and pull the head assembly straight out You will find that this is tight as there is an a-ring on this head Remove lever pin pull out handle and plunger
Remove cylinder bushing and pull out the beater shaft holding the knives as you do so Remove rear seal from shaft Take the head and beater shaft assemblies to the washing area Wash all parts thoroughly in a warm detergent solution and then rinse Wash the drain tube and cylinder using the brushes supplied
NOTE Do not dry any parts - reassemble them wet or allow to air dry
NOTE All O-rings must be removed in order to properly wash parts
Remove the DPR Pump from the cabinet in the bottom of the freezer Details on this are given in the pump section of this manual on pages 9-10 following
LUBRICATION AND REASSEMBLY
NOTE We recommend using Petrol Gel or equivalent
Lubricate the a-ring inside the rear seal Place it on the shaft so cup side will be against back of freezing cylinder DO NOT LUBRIGA TE THE GRAY RUBBER SEAL This seal is held under tension against the back of the cylinder when the beater and door are in place The cup seal remains stationary while the shaft turns freely in the plastic bushing Place both blades on the beater shaft and slide the beater into the cylinder Make sure the blades are installed properly The portion of the blade containing 2 knobs should face away from the cylinder walls When inserting the beater place the rear blade on the bottom of the cylinder This will center the beater and allow alignment with the drive coupling Push the beater shaft in and rotate until beater is engaged in the drive coupling The front of the beater shaft when engaged in coupling should be about 12 inside the cylinder Lubricate the inside surface of the cylinder bushing and install in cylinder
CAUTION ALWAYS MAKE SURE THAT THE BEATER BUSHING IS ON THE FRONT OF THE BEATER SHAFT OPERATION WITH A MISSING OR BADLY WORN BEATER BUSHING WILL DAMAGE THE BEATER AND CYLINDER
Lubricate the a-rings on the dispensing plunger and insert the plunger half way into the head Insert the plunger handle and lock in place with the lever pin Lubricate the 4 a-ring and slide the head assembly over the two cylinder studs Replace the two hand knobs and tighten the head on the cylinder DO NOT overtighten the knobs If leakage occurs check the 4 a-ring Replace the plunger switch rod
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALllY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
9
10
DPR PUMP OPERATION AND MAINTENANCE A CAUTION ALL CONTROL SWITCHES MUST BE IN THE OFF POSITION AND THE MAIN POWER SUPPLY DISCONNECTED FOR DISASSEMBLY AND REASSEMBLY
DISASSEMBLY
Step 1 - Reference DPR pump breakdown pages 40 and 41 for assistance in identificashytion of pump parts and their associated reference numbers If the pump has been in operation be sure that it is depressurized before proceeding to step 2
Step 2 - Remove attached mix hoses and pump cover (Ref 46)
Step 3 - loosen the thumb screw (Ref 18) and swing away the clamp (Ref 16) Carefully remove the entire pump assembly from the pump support (Ref 2)
Step 4 - Remove wing nuts diaphragm housing and diaphragm (Ref 41 42 and 43)
Step 5 - Further disassemble the pump by removing the piston assembly including the piston connecting rod and wrist pin (Ref 20 21 and 23) Separate the wrist pin and connecting rod from the piston Remove the curved air tube air meter outlet hose adapter and cylinder (Ref 24 31 44 and 45) from the valve housing assembly (Ref 27)
Step 6 - Grasp the outlet hose adapter asembly (Ref 31) and remove the keeper (Ref 39) while pressing inward on the drain port (Ref 35) Carefully lift and remove retainer clip (Ref 30) Caution must be exercised when removing the retainer clip as the relief mechanism parts (Ref 33 34 and 35) are spring loaded Remove the piston spring and drain port
Step 7 - Remove all a-rings rubber sleeve (Ref 29) and washer valve (Ref 25) All parts disassembled in steps 2 through 7 should be washed thoroughly in a solution of mild detergent and water not exceeding 120deg F Rinse all parts
NOTE All O-rings must be removed in order to properly wash parts
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Mohne illinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
LUBRICATION AND REASSEMBLY
Reassemble by reversing the steps on page 10 and lubricate as follows
When replacing the flat rubber washer (Ref 25) DO NOT LUBRICATE Important -This rubber washer acts as the air and mix check valve and must lie flat against the top of the pump valve housing Install it over the mushroom cap and move it around to make sure that it is sealed Ins~n the sleeve (Ref 29) Like the washer valve this should not be lubricated and fits on the pump valve housing with the tapper to the bottom
All the O-rings on the pump should be lubricated lightly The O-ring on the piston (Ref 21) should be lubricated liberally as this is the major wearing O-ring and must provide a good seal
Install the O-ring and spring on the piston (Ref 33) Lightly lubricate the O-ring (only enough to make it shiny) Install the piston with the O-ring end in first Lubricate the O-ring on the drain port and install it in the adapter Push in on the drain port and slide the clamp over the top to lock it in place Place the keeper (Ref 39) over the exposed end of the drain port and install the hose and clamp on the drain port Install the pressure switch diaphragm in the diaphragm housing
The pressure switch diaphragm (Ref 43) requires no lubrication
Install the diaphragm housing and diaphragm on the two studs and tighten wing nuts hand tight Install the pump assembly on the bracket-drive assembly in the refrigerated cabinet The shoulder of the white bushing (Ref 19) faces the drive cam (Ref 13) when slid into place properly Be sure to insert the mix output body (Ref 31) over the diaphragm housing (Ref 42) Return swing and adjusting clamp to closed position and tighten thumb screw Replace mix hoses and tighten all hose clamps
NOTE The pump will not operate without the cover (Ref 46) in place
WARNING
MAKE SURE ALL HOSE CONNECTIONS AND THE SWING A CLAMP ARE TIGHT BEFORE PRESSURIZING MACHINE THIS SYSTEM PRODUCES 30-32 PSI DURING NORMAL OPERATION
11
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH PrIntId USA
12
SANITIZING INSTRUCTIONS
The washing and sanitizing instructions explained in this manual are required to maintain a clean sanitary machine Your Soft Serve machine should be disassembled cleaned and sanitized to insure the best possible product and machine operation
Prepare a solution of sanitizing water (for each barrel) in a 2-3 gallon container (Solution should be 200 PPM chlorine using Diversol or equivalent) Place the container in the refrigerated cabinet and insert the mix inlet hoSe or stainless steel mix tube in the sanitizer Turn the pump switch ON (located at front of machine) and allow the pump to build up pressure and shut off automatically Turn the selector switch to the CLEAN OUT position and allow the beater to run for 5 minutes This insures the sanitizing solution touching all of the internal parts Placing a container under the dispensing head release the solution from the cylinder by depressing the dispensing handle Do this slowly as the cylinder is under 30 pounds pressure HINT Remove serrated nozzle (Ref 2) for this operation Sanitize nozzle and install when mix is ready to be dispensed Leave the dispensing handle down until the pump has forced all or most all of the solution through the machine When completed turn the selector switch and pump switch OFF You are now ready to start your freezer
You are working with a pressurized machine Always check for possible leaks when sanitizing your machine A leak around the head is obvious and usually calls for the replacement of the dispensing head O-rings A leak in the shaft seal will flow out of the drain tube just below the dispensing head This usually requires the replacement of the shaft seal or shaft seal O-ring Any leakage in the pump would require that the O-ring be replaced at the point of leakage
NOTE Sanitizing is always done prior to starting the machine Never sanitize the day belore and let the machine sit overnight
START UP INSTRUCTIONS
After sanitizing immediately fitl the container with mix Place the mix inlet hose or stainless steel mix tube in the container of mix (If you are using a plastic bag container supshyplied by the dairy it is recommended that you notch the plastic hose or use a perforated mix can tube so that the bag cannot be drawn into the mix inlet restricting the flow of mix If not careful a hole can be made in the bag) Sanitizer will remain in the pump mix hose and cylinder Turn the pump switch on starting the pump and depress the dispensing handle opening the dispensing plunger Leave the dispensing plunger open until you receive
pure mix at the nozzle The mix will push the remaining sanitizer out of the machine if the plunger is left open Close the plunger after removing all remaining sanitizer (See page 20)
After the cylinder is pressurized and the pump has shut off place the selector switch in the AUTOMATIC position At this pOint make sure the cabinet switch is at the ON position and the thermostat switch is at the DAY position Allow the machine to cycle and freeze down Normally several refrigeration cycles will be needed before a frozen product can be dispensed
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
It is impossible to start the freezer and not have excess air in the cylinder Since you have air in the cylinder and the pump is also adding air to the mix on first start up you will have air pockets in the cylinder These pockets can be eliminated if after two or three cycles you will turn the selector switch to the OFF position Pump switch must be at ON position With the selector switch off slowly open the dispensing plunger and bleed off the excess air until liquid mix comes out the dispensing head Close dispensing handle allow the cylinder to fill and turn selector switch to AUTOMATIC At least 30 minutes cycling time should be allowed to insure a ready produ~l
CLEANING PROCEDURE - DRAINING MACHINE
Place selector switch on the front of the machine to CLEAN OUT and let the beater run for about five minutes This will allow the product in the cylinder to soften up Place a clean sanitized container under the dispensing nozzle and very slowly draw off the semishyfrozen cream until liquid mix appears at the nozzle Remove the stainless steel mix tube or mix hose from the mix container Leave the dispensing plunger open until all the mix has run out of the cylinder and place the container in the cooler for storage Place the mix inlet hose in a container of cold water allow the cylinder to pressurize and flush the machine with the selector switch on CLEAN OUT Follow with a container of warm water until machine is rinsed clean Place the selector switch and pump to OFF Refer to disassembly instructions (Ref page 9)
WARNING
YOUR SOFT SERVE MACHINE OPERATES ON 30-32 POUNDS PRESmiddot A SURE NEVER DISMANTLE ANY PART OF THE MACHINE UNLESS THE MACHINE HAS BEEN DEPRESSURIZED THE SELECTOR
SWITCH IS IN THE OFF POSITION AND THE MAIN POWER SUPPLY HAS BEEN DISCONNECTED DEPRESSURIZE THE CYLINDER BY OPENING THE SPIGOT WITH THE PUMP SWITCH IN THE OFF POSITION
CLEANING MIX HOSE
The CAB models use the DPR mix pump You must disconnect the mix hoses and clean them thoroughly USing a long handle brush and a suitable cleanersanitizer you must brush the interior of the mix hose to insure there is no build up of product on the walls of the hose Water temperature for this cleaning process should be 1800 F to meet some health codes After reassembly pump sanitizer through the hoses
Mfg by H C DUKE amp SON INC 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
13
14
GENERAL INFORMATION OVERRUN ADJUSTMENT
The overrun on your CAB machine equipped with a DPR pump is regulated by the air meter (Item 45-pump parts breakdown) You are supplied with three air metering plugs each containing a different size orifice The smaller the hole the lower the overrun The larger the hole the higher the overrun The orifice or hole in this air meter must be open at all times It is the only source of air into the freezing cylinder Check this daily
The mix will be a determining factor as to the amount of overrun you will be able to achieve Some mixes will accept more air than others thus regulating the size of air meter you can use Test to see which air meter will give you the best overrun and the best tasting shake Run each air meter for one day until you make the determination You may have a slightly higher overrun when you first start up the machine When the machine has run long enough to dispense at least one full cylinder of product you will have the overrun that the machine wil hold the remainder of the day
ADJUSTING PUMP PRESSURE
Only to be performed by a qualified service technician
A WARNING
DISCONNECT MAIN POWER SUPPLY BEFORE REMOVING PANELS
NOTE The pump will not operate without the cover in place
The DPR Pump is controlled by pressure in the mix line acting on the diaphragm (Ref 43) As the pump fills the freezer cylinder with mix pressure builds causing the diaphragm to expand As the diaphragm expands it contacts the button (Ref 51) which in turn depresses the pump pressure switch (Ref 60) The pressure switch button moves inward until the switch is opened turning off the pump motor When product is drawn from the freezer the diaphragm closes the pump pressure switch allowing the pump motor to restart Pump pressure will check the same with air mix or water We suggest the pressure be checked with air pressure only
Step 1 - Remove the rear panel from machine and the pump electrical box cover (Ref 6)
Step 2 - Locate the pressure adjusting nut (Ref 59) Turn the adjusting nut clockwise to increase pressure or counterclockwise to decrease pressure Usually one half turn of the adjusting nut will raise or lower the pressure of the model DPR pump two (2) PSIG
Step 3 - Install a quality pressure gauge in the mix output line Turn main power supply and pump switch to ON pOSition Caution Electrical power present through entire machine Allow the pump to pressurize until it shuts off automatically Observe the gauge pressure reading and disconnect main power supply Repeat the adjustment steps 1 through 3 until the proper pressure is obtained (30 to 32 PSIG) Reinstall the electrical box cover and rear panel
NOTE Pressure tine must be at least 6 fI long in order to obtain an accurate reading
A Pressure Gauge PIN 112791 may be purchased from your local distributor
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
PRESSURE RELIEF ASSEMBLY
The model DPR Pump incorporates a self contained safety pressure relief system The parts included in this assembly are (Ref 30 through 39) Any discharge of mix through the hose (Ref 37) is an indication of excessive pump pressure For corrective action refer to the trouble shooting section of this manual
REFRIGERATION SETTINGS
A WARNING
DISCONNECT MAIN POWER SUPPLY BEFORE REMOVING PANELS
The CAB Soft Serve machine contains two types of temperature control devices the expansion valve and the thermostat (explained in Thermostat Section) The expansion valve meters the flow of refrigerant to the cylinder and must be set correctly to give you maximum production
To locate the expansion valve remove the side panel On the single head CAB machines remove the right side panel The double head machines will have an expansion valve behind both right and left side panels
The expansion valve should only be adjusted by a refrigeration technician with refrigeration test gauges connected to the compressor Adjustments to the valve are shown in the following chart
REFRIGERATION SETTINGS MODEL TYPE OF COOUNG WATER AIR 917CAB 927CAB 957iAa I
Cyl Suction Pressure Rmiddot502 15middot17 (PSIG) 15-17 (PSIG)
9711CAS Cyl Suction Pressure R-502 15middot17 (PSIG) 15middot17 (PSIG)
ALL SOFT SERVE
CABS
Cab Suction Pressure Rmiddot502 Head Pressure Thermostat Differential
8middot10 (PSIG) 230-240 (PSIG)
17degmiddot22deg 7deg~8c
8-10 (PSIG) 230middot315 (PSIG)
17deg_22deg 7c -8deg
NOTE To correctly set the cylinder expansion valve the cabinet thermostat switch An must be in the OFF position (Full counterclockwise) with the compressor running
NOTE To correctly set the cabinet expansion valve the selector switch must be in the OFF position and the cabinet switch in the ON position (With the compressor running)
A refrigeration test gauge must be used when adjusting the suction pressure To reduce the suction pressure turn the adjustment screw on the expansion valve counterclockwise Do not turn more than 14 turn at a time Let the unit operate a sufficient length of time - at least two minutes - to properly read on the gauge the adjustment made
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline illinOIS 61244
SUPERIOR QUAUTY FREEZERS bull SOFt SERVE bull SHAKE bull SLUSH
15
16
THERMOSTATS
A WARNING
DISCONNECT MAIN POWER SUPPLY BEFORE REMOVING PANELS
Thermostat Au is the cabinet refrigeration thermostat The cabinet thermostat operates off of both the day and night switch operation to maintain 44 0 F or lower in the mix storage cabinet This thermostat can be adjusted by rotating the adjustment knob To set this thermostat colder turn the adjustment knob clockwise
CYLINDER THERMOSTAT
The cylinder thermostat is located behind the right side panel (on single head CABs) faCing the front of the machine On the double head CABs like the expansion valve a cylinder thermostat is located behind both the right and left side panels This control has two settings The first is the differential which should be set on 7-8deg F The other side of the control marked HIGH EVENT should be set between 17-220 F
The purpose of the cylinder thermostat is to maintain an 18deg F product during idle periods If the thermostat is set too cold and product is not drawn out of the machine a freeze up condition will result DO NOT run the product below 17deg F
NOTE The settings on the thermostat are ONLY to be used as a guide
For a correct adjustment a thermometer must be used to check the actual product temperature Each thermostat should be set in the field for the product being used Most of the time a temperature setting of between 18deg and 19deg F will maintain a satisfactory product Once the thermostat is set for the mix used it should require no further adjustment
MIg by H C DUKE amp SON INC 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH P~IIIIUSA
THERMOSTAT_________ Turn knob clockwise to make product colder
Differential adjustment
copy
COLDER ~ reg
copy5
2 6Igt
1 7 OFF
copy
THIS ASSEMBLY USED ON LEFT SIDE OF UNIT
RIGHT SIDE USES THIS ASSEMBLY WIO THERMOSTAT A (CAB THERMOSTAT)
MIg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
17
18
MAINTENANCE AND ADJUSTMENT
ONLY TO BE PERFORMED BY A QUALIFIED SERVICE TECHNICIAN
WARNING
MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFF POSITION AND THAT THE MAIN POWER SUPPLY IS DISCONNECTED BEFORE REMOVING PANELS
LUBRICATION INSTRUCTIONS
FAN MOTOR (Air Condenser) Lubricate annually with SAE 10 motor oil in the oil cups
CAUTION DO NOT OVER-LUBRICATE OVER-LUBRICATION CAN DAMAGE MOTOR
GEAR REDUCER The gear reducers are heavy duty worm-geared units manufactured to HC Duke specifications II traces 01 oil are found in the immediate area around the reducer repair the leak (usually an oil seal) and check the oil level When adding oil use only synthetic gear lube in the reducer
NOTE This is a special oil and will not mix with a petroleum base oil Contact your distributor when this oil is needed This oil should be changed at least once a year
OIL LEVEL PLUG
PROPER OIL LEVEL
OIL DRAIN USE SPECIAl PLUG OIL ONLY
USE SPECIAL LOILON=LY-- I
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH ~1U8A
MAINTENANCE AND ADJUSTMENT ONLY TO BE PERFORMED BY A QUALIFIED SERVICE TECHNICIAN
WARNING
MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFFA POSITION AND THAT THE MAIN POWER SUPPLY IS DISCONNECTED BEFORE REMOVING PANELS shy
BEATER MOTOR Beater motors are either single or three phase Capacitor starting is used on the single phase units The beater motor should be inspected and cleaned
WATER COOLED CONDENSER Depending on the condition of your water the condenser on your CAB machine may require cleaning from time to time Usually a restricted flow of water resulting in a high head pressure indicates a dirty condenser The condenser should be flushed out with an acid solution by a qualified service technician
AIR COOLED CONDENSERS At least once a month the face area of the condenser should be inspected for accumulation of dirt and dust Surface dust and dirt can usually be removed with a stiff brush andor vacuum cleaner After brushing hold a light between the fan blades and look through the condenser from the opposite side This procedure will locate those areas where accumulated dirt has lodged between the condenser fins To clean these areas obtain a small tank of nitrogen or C02 with a needle control valve or pressure regulator with a small hose attached and proceed as follows
(1) Place a damp towel or cloth over the face area of the condenser
(2) Open the control valve or regulator on the tank releasing pressure to the coil from the back side cleaning the condenser
(3) Check the condenser periodically with the light and continue the treatment until the fins are clean
For maximum performance replace all worn O-Rings Seals Blades etc
CAUTION USE ORIGINAL OR AUTHORIZED REPLACEMENT PARTS ONLY WITH THIS FREEZER
Mig by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline illinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
19
20
PULLEY ALIGNMENT AND BELT TENSION ONLY TO BE PERFORMED BY A QUALIFIED SERVICE TECHNICIAN
WARNING
A MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFF POSITION AND THAT THE MAIN POWER SUPPLY IS DISCONNECTED
Remove the side panels to expose the pulleys and belts
Check the alignment of the beater motor pulley and gear reducer pulley by placing a straight edge across the faces of the two pulleys If the pulleys are not aligned adjust as necessary until proper alignment is obtained
Depress the belts with a finger at a point midway between the two pulleys When properly adjusted the belts should depress 12 from its normal position with approximately 5 pounds of pressure If the belts are too tight or too loose adjust as necessary until proper belt deflection is obtained Loosen four (4) bolts which hold the motor mounting plate to the frame With these loose adjust tension bolt in or out as required to obtain proper belt tension Retighten bolts
BELTS
Periodically inspect the belts If they are worn excessively replace both belts For best results it is advisable to replace both belts as they are manufactured in matched sets
SCRAPER BLADES
NOTE Be sure to purge all of the sanitizer from the mix system before operating the freezer (see page 12) Failure to completely remove sanitizer or water trom the freezing cylinder before placing the machine in the Automatic position may cause blade breakage and damage the freezer
o o
NEW BlADE WORN BLADE
Replace blades if worn 316 or more
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
END PLAY FOR BEATER DRIVE COUPLING
It is very important that the drive coupling located on the gear reducer be set properly Referring to the Drive Coupling Illustration the following procedure should be followed in setting the end play
WARNING
MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFF POSITION AND THAT THE ELECTRICAL POWER TO THE MACHINE IS DISCONNECTED SO THAT THE UNIT WILL NOT OPERATE
------
DRIVE COUPLING ILLUSTRATION
REF DESCRIPTION REF DESCRIPTION 1 Gear Reducer 6 Reducer Mounting Plate 2 Beater Shaft 7 Set Screws 3 Shaft Seal 8 Bolt Gear Reducer 4 Drive Coupling 9 Bolt Reducer Mounting Plate 5 Spacer 10 Key
11 Output Shaft
Improper drive coupling spacing will damage the beater shaft dispensing head and drive coupling When checking end play settings or replacing a coupling proceed as follows
REMOVING COUPLING
WARNING
DISCONNECT MAIN POWER SUPPLY
Mig by H C DUKE amp SON INC bull 2116 Eighth Allenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SO SERVE bull SHAKE bull SLUSH
21
22
(1) Remove Beater Shaft (Ref 2)
(2) Remove both drive belts (not shown)
(3) Remove gear reducer bolts (Ref 8) Six (6) bolts are located around the face of the reducer
NOTE Remove the top bolt last holding the bottom of the reducer as you do so
(4) Remove the gear reducer (Ref 1) and place-on table or bench
(5) Replace two (2) bolts (Ref 8) one (1) at the top and one (1) at the bottom so that the reducer cover will not come off while the coupling is changed
(6) Loosen the four (4) set screws (Ref 7) and remove the drive coupling (Ref 4) Should the coupling be stuck tight to the ouput shaft lightly tap the coupling from the back with a hammer and bar Sometimes due to age this coupling will stick so tight it will have to be removed with a pulley removing tool or a wheel puller
(7) Remove the key (Ref 10)
INSTALLING THE NEW COUPLING
(1) Clean gear reducer output shaft (Ref 11) with fine emery cloth and slide the new drive coupling on the reducer shaft The coupling should slide on the shaft all the way without the key If the coupling doesnt slide completely on check both coupling and reducer shaft for burrs When a smooth sliding fit is achieved remove coupling and proceed with final assembly
(2) Place key (Ref 10) in keyway slot on the reducer output shaft Keep the key flush with the front end of the output shaft (Ref 11)
(3) Slide the coupling (Ref 4) on the output shaft until it bottoms out on the shaft Leave the four (4) set screws loose as the coupling will have to be adjusted
(4) Remove the two (2) bolts added in preceding Step 5
(5) Place one (1) gear reducer bolt (Ref 8) in the top hole of the cylinder mounting plate
(6) Insert gear reducer into cylinder mounting plate and start top bolt (Ref 8) Do nol tighten completely Now insert the other bolts one at a time When all bolts are in tighten each boll
NOTE Due to very close tolerance between the gear reducer and cylinder mounting plate no alignment is required when Installing the reducer When the reducer bolts are tightened the reducer will seH-align with the cylinder
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
(7) Insert the beater shaft (Ref 2) with the shaft seal and blades into the cylinder and engage beater shaft in the drive coupling Place bushing on front of beater shaft
(8) Tape a dime (10 cents) to the back of the dispensing head in the very center at the point where the beater shaft touches the dispensing head The dime is used to acquire the proper end play setting on the drive coupling which is approximately 332
(9) Place the dispensing head into the cylinder and tighten with the hand knobs Important make sure hand knobs are tight and head is against the end of the cylinder tube
(10) Slide the drive coupling (Ref 4) forward until it is tight against the beater shaft and lock into place the four (4) set screws (Ref n
(11) Remove the dime from the back of the dispensing head
(12) Replace the drive belts
(13) Turn on electrical power
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
23
PANEL BREAKDOWN - 917CAB
~--~
3
REF PART No 1A 114544 1B 112991 2A 136075 2B 136102
3A 137027 3A 137028
3A 136105 3B 136103
3B 134817 4 134818
4 136101 5A 114780
5A 113570 5B 112967
6 112960 7 133291
24 A 917CAB only
I
dJ
DESCRIPTION Frame ssmiddoty Frame ASsmiddoty Lower Side Panel Lower Side Panel LH Side Panel RH Side Panel Upper Side Panel Upper Side Panel Upper Side Panel Rear Panel Rear Panel Top Cover ASsmiddoty Top Cover ASsmiddoty Top Cover ASsmiddoty Filler Panel ASsmiddoty Top Filler Strip
B bull 44 CAB only
~
[At 16 lt0
REF 8
9 10 11 12 12A 13
14 15 16 16A
Air Cooled only
PART No DESCRIPTION 132687 Dispense Panel 134247-01 Dispense Panel Cab-W
Drip Tray (See Pg 35) 114260-01 Door Assmiddoty wIHinges 132444-01 Left Hand Filler Strip 162045 Upper Hinge 162052 Spring LH 162046 Lower Hinge 160026 Screw 160020 Bolt 160139 Washer 110205 Syrup Jar Enclosure 160563-01 Door Gasket 01-Groove) 159174 Drip Tray Button 160293 Clip for Button
Water Cooled only
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
~~
1 ~~o ~o
)
cp I
L~
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 114538 Frame Assy 10 162045 bull Upper Hinge 2 136289 Side Panel LH lOA 162052 Spring LH 3 136313 Rear Panel 11 162046 Lower Hinge 4 114006 Top Panel AC llA 160026 Screw 4A 114428 Top Panel WC l1B 160020 Bolt 4B 114157 Top Panel AC Remote l1C 160139 Washer 5 113983 Front Panel Assy 927CAB 12 136216 Side Panel RH 5A 113985 Front Panel Assy 957cAB 13 160563 Door Gasket (V-Groove) 6 130021 Rear Corner Channel RH 14 159174 Drip Tray Button 6A 135254 Rear Corner Channel LH 14A 160293 Clip for Button 7 137228 Dispensing Panel 162108 Stop Pin (Screw In) 8 Drip Tray (See Pg 35) 136199 Door Pull 9 114260 Door Assy wHinges
25
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
SOFT SERVE CAB ELECTRICAL BOX
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 Contactor (Order By Freezer 5 150463 Selector Switch
Serial Number) 6 159235 Toggle Switch (Pump) 2 Overload (Order By Freezer 7 150456 Spigot Switch
Serial Number) 7A 136124 Button - Spigot Switch 2A Heater Coil (Order By Freezer 7B 162302 Spring - Spigot Switch
Serial Number) 8 150553 Pilot Light - Amber 3 Starter (Order By Freezer 9 150552 Pilot Light - Red
Serial Number) 10 161026 Thermometer (Not Shown) 4 150208 Timer
26
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Pointed u
- - --- -
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prifllcl If USA
In-
ca ~ Q ltC wr w I
Zshy
2B
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w gta w ()
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SOFT-SERVE - SINGLE HEAD CAB
REF PART No 1 151351
2 3 4 5 6 151044
151052 7
8 155039 9 155400 10 155117
11 151084
12A 159021 13 155401 13A 155423 14 155403 15 155422
16 154976 16 154975 17 159203 18 155051 19 112901
155410 20 155044
151348
DESCRIPTION Capacitor Relay Assembly (single phase)
150247 Start Capacitor
150249 Run Capacitor 150245 Relay Motor Capacitors (order by freezer serial no) Gear Reducer (see gear reducer breakdown page 36) Driven Pulley (order by freezer serial no) Belt (order by freezer serial no) Motor 1-phase 230 volt Motor 3-phase 208230 volt Driver Pulley (order by freezer serial no)
Water Condenser Automatic Expansion Valve (Cylinder) Air Condenser
Condenser Fan Motor
Condenser Fan Blade High Pressure Cut-Out shyHigh Pressure Cut-Out shyLow Pressure Cut-Out Solenoid Valve
Compressor 230160
AC WC
Compressor 208-230360 Sight Glass Drier (38) Receiver Tank Assembly Water Valve (not shown) Service Valve Compressor Mounting Kit
Note I) lt0 For All 50-Cycle Freezers Order By Freezer Serial Number
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Printad I usA
30
c W -I o o o a w ~ 3
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w gta w en u o en
SOFT-SERVE - DOUBLE CAB - WATER COOLED REF PART No DESCRIPTION 1 155026 Water Condenser (B-side) 1 A 155039 Water Condenser (A-side) 2 159203 Sight Glass 3 155051 Drier (38) 4 155400 Automatic Expansion Valve (Cylinder) 5 Gear Reducer (see gear reducer breakdown page 36) 6 155410 Water Valve 7 155423 High Pressure Cut-Out 8 155403 Low Pressure Cut-Out 9 154976 Compressor 230160
151351 Capacitor Relay Assembly (Single Phase) 150247 Start Capacitor 150249 Run Capacitor 150245 Relay
9A 154975 Compressor 208-230360~-11 NOT USED ON THIS MODEL 12 155442 Low Temp Control 13 Driven Pulley (order by freezer serial no) 14 Belt (order by freezer serial no) 15 Driver Pulley (order by freezer serial no) 16 155422 Solenoid Valve 17 151044 Motor 1 phase 230 volt 17A 151052 Motor 3 phase 208230 volt 18 Motor Capacitors single phase only (order by freezer serial no)
Note For All 50-Cycle Freezers Order By Freezer Serial Number
cgt
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH _InU5A
32
c W J o o o -a oCt
aI oCt o W I m ) o c w gta w Ch t--LL o Ch
SOFTmiddotSERVE bull DOUBLE CAB - AIR COOLED REF PART No 1 155120 2 159020 3 151080 4 155400 5 6 159203 7 155051 8 112901 9 151044 9A 151052 10 11 12 14 154976
14A 154975 15 155401 16 155403 17 155443 18 155442 19
21 155422
DESCRIPTION Condenser Fan Blade Fan Motor Automatic Expansion Valve (Cylinder) Reducer (see gear reducer breakdown page 36) Sight Glass Drier Receiver Assembly Motor 1-Phase 230 Volt Motor 3-Phase 208230 Volt Driven Pulley (order by freezer serial no) Belt (ordr by freezer serial no) Driver Pulley (order by freezer serial no) Compressor 230160 151351 Capacitor Relay Assembly (Single Phase)
150247 Start Capacitor 150249 Run Capacitor 150245 Relay
Compressor 208-230360 High Pressure Cut-Out Low Pressure Cut-Out Cabinet Thermostat Low Temp Thermostat NOT USED ON THIS MODEL Motor Capacitors single phase only (order by freezer serial no) Solenoid Valve
Note For All 50-Cycle Freezers Order By Freezer Serial Number
Vl Vl
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prinled In USA
CAB PARTS BREAKDOWN
REF PART No DESCRIPTION PART No DESCRIPTION 1 155109 Cabinet Coil 136297 Condensate Pan (Not Shown) 1A 155113 Motor Cabinet Fan 196092 Mix Tank 7-12 Gal 1B 155099 Fan Blade Cabinet Coil 113997 Front Lid Mix Container
7-12 Gal 136248-01 Rear Lid Mix Cont 7-12 Gal
10 155416 CAB Automatic Expansion 130092 Mix Tube Valve 196028 Mix Tank 10 Gal
137119 Probe 11 -1 4 shy1E 155114 Fan Grill amp Bracket 7-12 Gal Container 1F 155116 Knob 137119-01 Probe 10-34 shy2 113898 DPR Pump Less Motor 7-12 amp 10
(see pump breakdown Gal Container pg 38) 137119-02 Probe 10-14 shy
3 196061 Mix Hose (sold by the foot) 10 Gal Container 4 150416 Door Switch 137120 Base Probe Mtg 4A 114630 Actuator Door Switch 160500 O-Ring
(Not Shown) 114572 Hose Clamp (Not Shown) 5 150527 Retractable Cordset 34
MIg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prlmd UsA
MERCHANDISING ASSY
PART No 115108 115107
PART No
196107-01 196108-01 114610 114608 115132 199030
PART No 162105 162106 112978 158004 158021 158022 158078 158000 158056 158000A 158014 158014A 161000 158049
DESCRIPTION 2S Merchandiser-927-957-978CAB 24 Merchandiser-917CAB
DRIP TRAY
DESCRIPTION
24 Drip Tray-917CAB 26- Drip Tray-927-957-978CAB 24 Tray Insert-917CAD 26 Tray Insert-978CAB-927CAB 26 Tray Insert-957CAB Rubber Bumper (only)
DESCRIPTION Caster With Brake Caster Without Brake Leg-6 4 Cylinder Brush Mix Hose Brush 58 Dia w6 Ft Handle 14 Pump Brush Drain Tube Brush Petrol Gel (12 tube carton) Petrol Gel (6 tube carton) Pe1rol Gel (per tube) Stera Sheen (per case) Stera Sheen (per jar) Pocket Thermometer 1 Dial Z32 Overrun Scale
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SNAKE bull SLUSH
35
36
GEAR REDUCERS Order By Freezer Serial Number
Model 3 CB
153345 5-1 Ratio B side 153004 High Speed Cup ~ (2 ea required) 153005 High Speed Bearing (2 ea required) 153008 Slow Speed Cup (2 ea required) 153009 Slow Speed Bearing (2 ea required) 153052 Slow Speed Seal (2 ea required) 153054 High Speed Seal (2 ea required) 153313 Brass Gear 5-1 Ratio 153336 Slow Speed Shaft Only 5-1 Ratio 153316 Worm Gear On Shaft 5-1 Ratio 114873 Gasket Set
Model 4 CB
153342 10-1 Ratio A side 153343 10-1 Ratio B side
153014 High Speed Cup (2 ea required) 153015 High Speed Bearing (2 ea required) 153011 Slow Speed Cup (2 ea required) 153012 Slow Speed Bearing (2 ea required) 153051 Slow Speed Seal (2 ea required) 153053 High Speed Seal (2 ea required) 153349 Brass Gear 10-1 Ratio 153339 Slow Speed Shaft OnIy 10-1 Ratio 153347 Worm Gear on Shaft 10-1 Ratio 114874 Gasket Set
Winlwin Model
153341 Wintwin 10-1 Ratio A and B Side
153014 High Speed Cup (2 ea required) 153015 High Speed Bearing (2 ea required) 153011 Slow Speed Cup (2 ea required) 153012 Slow Speed Bearing (2 ea required) 153051 Slow Speed Seal (2 ea required) 153053 High Speed Seal (2 ea required) 153349 Brass Gear 153350 Slow Speed Shaft Only 153348 Worm Gear on Shaft 11 4874 Gasket Set
158055 Gear Reducer OU 51001
Drive Coupling (Order By Machine Serial Number)
Mfg by H C DUKE amp SON INC bull 2115 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
917 amp 927 Beater Shaft Assembly
957 Beater Shaft
Item Part No Description
1 196079 Bushing-Cylinder 2 114752 Beater-Assy Long (Shaft) 3 137334 Blade-Scraper Soft Serve 4- 160500 O-Ring (Shaft Seal) 5- 133098 Bushing (Washer-Shaft Seal) 6 160557 Seal-Beater Shaft
-Items 4-6 111875 Seal-Assy Shaft (Complete)
31
1 113438 2 196079 3 137334 4- 160500 5- 133098 6 160557
-Items 4-6 111875
Shaft-Assy Beater Bushing-Cylinder Blade-Scraper O-ring (Shaft Seal) Washer-Shaft Seal (Bushing) Seal-Beater Shaft (Cup)
Seal-Assy Shaft (Complete)
ao
DISPENSING HEAD
16
r
Q
--~
-----_
REF PART No DESCRIPTION Tl3o 6 119928- Door Assembly shy Complete (Items 7-14) 11637- 7 196688 Door shy Less Parts
a 134921 Spigot shy Less Extension 9 134922 Handle Extension shy Spigot
10 162624 Handle 11 159295 OmiddotRings shy Spigot (Lots of 5)12 159309 O-ring shy 4 - Door 13 196066 Air Relief Screw 14 160621 a-Ring shy Air Relief Screw (Lots of 5)15 136126 Rod - Spigot Switch shy 917 8 927 16 136798 HMdKnob
38
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illmols 61244
SUPERIOR QUAUlY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
Duke Soft Serve Freezer Models 917R and 927RN
5 -______
7
6
UPDATEDDispense Head Assembly
Item Part No
115130 1 116321 2 160583 3 115129 4 160562 5 136126 6 134921 SA 162624 68 134922 7 159295 8 160584 9 162625 9A 114341 10 196185 10A 137870 108 136713
116410
Includes items 1-4 6-8
Description
Head-Assy Dispense (Complete) Head-Assy wActualor O-ring (Head-4-inch) Bleeder-Assy (Air Relief Plug) O-ring (Bleeder-Assy) Rod-Spigot Switch Spigot-long Single Handle-Black Tapered Handle-Spigot (Stainless Steel) O-ring (Spigot) O-ring (Extension) Knob-Hand Stud-Assy Cylinder 1-15116 inch (not shown) Nouie-Slar Adapter (accessory) Adapter-Yogurt Nozzle (not shown) Extension-Spigot (accessory-cake not shown) Kit-Dispense Head Switch
( Use only original or authorized replacement parts with this freezer )
DISPENSING HEAD
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH uu
REF PART No 114765
1 196082 2 114313 3 137018 5 136618 6 162626 8 134499 9 162625
10 115129 11 136794 12 159309 13 159295 14 160562 15 136713 16 160584
DESCRIPTION Door Assy-Complete Door-Less Parts Spigot Assy-Side Spigot Only-Center Extension Only-Center Handle Stud-Handle Stop Hand Knob Air Re1ief-Assy Rod-Spigot Switch O-Ring-4-Door O-Ring-Spigot O-Ring-Air Relief Extension-Spigot a-Ring
39
40
PUMP MOTOR AND HOUSING ASSEMBLY SAFETY SWITCH ASSEMBLY
PRESSURE SWITCH ASSEMBLY ijreg~
I
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH IIIUaA
CAB DPR PUMP BREAKDOWN
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 196091 Pump Base 46 114009 Pump Cover 2 136088 Pump Support 47 113464 Base Bracket Assembly 3 150784 Strain Relief Bushing 48 135725 Stud 1-78 4 Power Cord 49 160131 516 Flatwasher 5 160075 10-24 x 38 Screw 50 160293 Speed Clip 6 135416 Cover Electric Box 51 135724 Button 7 160141 14 Lockwasher 52 160140 10 Lockwasher 8 160491 14-20 x 34 Socket Screw 53 135726 Stud 3 9 113497 Motor Cord 18-3 SJT 54 160109 10-24 Hex Nut 10 151127 Motor 40 RPM Soft Serve 55 135729 Switch Actuator 11 160023 14-20 x 1 Screw 56 135731 Stop - Max Pressure 12 153317 Half Moon Key 57 162315 Spring - Soft Serve 13 112925 Cam Drive Plate Assembly 58 160138 10 Flat Washer 14 160495 14-20 x 14 Set Screw 59 160304 10-24 Stop Nut 15 160369 Pin 60 150456 Pressure Switch 16 134614 Swing Clamp 61 135744 Insulator - Fiber 17 134521 Adjusting Clamp 62 160381 6-32 x 1 Socket Screw 18 160488 Thumb Screw 63 160393 6 Flatwasher 19 134604 Bearing Bushing 64 160146 6 Lockwasher 20 134602 Connecting Rod 65 160309 6-32 Hex Nut 21 134601 Piston 66 160006 6-32 x 14 Screw 22 159295 O-Ring 67 160001 8-32 x 38 Screw 23 134603 Wrist Pin 68 160470 8 Lockwasher 24 136089 Cylinder 69 150481 Circuit Breaker 25 199011 Washer Valve 70 135727 Switch Bracket 26 159282 O-Ring 71 136311 Spacer - Cover Switch 27 113839 Pump Valve Housing 72 160028 Truss Head Screw
Assembly (Metal) 14-20 x 34 SST 28 160582 O-Ring 73 160141 Lockwasher 14 29 199020 Sleeve Rubber 74 160104 Hex Nut 14-20 30 135793 Retainer Clip 75 136312 Button Guard 31 135791 Adapter Hose Outlet 76 160020 Hex Hd Cap Screw 32 160581 O-Ring 14-20 x 1 SST 33 135790 Piston 77 113869 Switch Bracket 34 162308 Spring Soft Serve 78 136110 Button Cover Switch 35 135792 Drain Port 79 162314 Spring 36 160611 O-Ring 80 150456 Switch Pump Safety 37 135896 Hose 24 81 135004 Switch Cover 38 160738 Hose Clamp 82 160296 Screw RH 39 136288 Keeper 6-32 x 1-14 40 160554 O-Ring 83 160146 Lockwasher 6 41 160368 Wing Nut Int Tooth 42 130054 Diaphragm Housing 84 160393 Flatwasher 6 43 199019 Diaphragm 85 160309 Hex Nut 6-32 44 196074 Air Tube-Curved 86 114572 Hose Clamp 45 163433 Air Meter - 20 87 160048 14-20 x 12 TRHM
(other sizes available) 88 160308 6-32 x 516 RDHM 89 114581 Circuit Breaker Bracket
Not Shown 90 163109 Stop Pivot 112791 DPR Pressure Gauge
41
Mfg by H C DUKE amp SON INC 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
42
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Unit does not operate 1 Fuse blown at main disconshy 1 Check fuse size check for low nect voltage if not within 10 of
nameplate rating install transformer or call power company
2 Beater motor out on overload 2 Press starter reset button and check for low voltage Check producllemperalure and overrun
3 Disconnected or broken wife 3 Check wiring and wire connecshyin electrical circuit lions repair or replace lead
wires as necessary
4 Faulty selector switch 4 Replace selector switch
5 Out on high pressure 5 Check for low waler supply or dirty air conden ser
6 Out on low pressure 6 Check limit control and freon charge
Compressor does not operate f Troubte in compressor con- I Refer to Trouble-Shootingshyor operates improperly densing circuit Compressor I Condensing
Circuit
2 Faulty capacitor assembly 2 Replace capaCitor assembly (Single phase only)
3 Faulty contactor 3 Replace contaclOr or pOints
Compressor operates but 1 Loose con neclion at motor 1 Tighten connection beater motor does not starter coil (electrical box)
2 Open starter coil 2 Replace coil
3 Faulty capacitor assembly 3 Replace capaCitor assembly (Single phase only)
Dispensed product too hard 1 Cylinder themostat erratic 1 Adjust thermo slat or replace or set too low
2 Faulty time delay relay 2 Replace time delay relay
3 Solenoid valve leaking 3 Replace solenoid valve
4 Low suction pressure 4 See chart on page 15 for adshyjustments
Leaking of mix from rear housshy 1 Damaged bealer shalt seal 1 Replace shaft seal or O-ring ing discharge tube to drip tray inside seal assy
Mig by H C DUKE amp SON INC bull 2116 Eighlh Avenue Easl Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Mix leaking at dispensing head 1 Faulty 4 O-Ring
2 Head not properly installed
1 Replace 4 O-Ring
2 Install head properly
Mix sours in cabinet 1 Cabinet thermostat setting too high
2 Cabinet thermostat detective
3 Cabinet solenoid valve deshyfective
4 Cabinet switch defective
5 Beater motor out on overshyload (cab side)
1 Adjust thermostat
2 Replace thermostat
3 Replace coil or solenoid
4 Replace cabinet switch
S Reset overload for beater motor See pg 42 unit does not operate
Cabinet too COld
Machine runs continually and Product continues to get colder
Compressor operates only when dispensing
Unit runs conMuously Product does nol reach 180 F temperature
6 Door sWitch defectIVe
1 Cabinet thermostat setting too low
2 Defective thermostat
3 Cabinet solenoid stuck open
4 Cabinet expansion valve set too low
1 Plunger switch out of adjustshyment
2 Su ction pressure too low
3 Defective plunger switch
4 Plunger switch rod engaged
5 Faulty time delay relay
6 Starter or relay contacts stuck
7 Faulty thermostat or bulb not deep enough in well
6 Replace door SWitch
1 Adjust thermostat
2 Replace thermostat
3 Replace solenoid
4 Adjust cabinet expansion valve (See pg 15)
1 Adjust plunger switch
2 Adjust expansion valve and check freon charge
3 Replace plunger switch
4 Close plunger completely
5 Replace time delay relay
I 6 Check contacts i
7 Check bulb location or replace thermostat
1 Cylinder themostat setting 1 Adjust thermostat or replace too high or thermostat deshyfective
1 Trouble in compressor I condensing system
2 ExpanSion valve setiing is too high
3 Low on refrigeranl
1 See Trouble-Shooling-CompressorI Condensing circuit
2 Adjust expansion valve
3 Check and repair leak and recharge
1
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE SLUSHbull
43
44
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Dispensed product too soft (Product temperature above 21 0 F)
1 Automatic expansion yalve incorrectly set or erratic in operation
-2 Leak in refrigeration system
resulting in little or no refrigeration
1 Adjust or replace expanSion valve
2 Pump down system or remove refrigerant charge repair leak evacuate and recharge
3 Excessive oil in system 3 Drain compressor to proper oil leyel pump down and flush system
4 Thermostat set too high taulty
or 4 Adiust thermostat or replace
Product dispenses slOWly out dispensing head
1 Reverse rotation 1 Change rotation to clockshywise from front of freezer
2 Dispensing speed adjustshyment boll too far down
2 Adjust bolt upward
3 Pum p problem 3 See pump Trouble-Shooting chart
4 Product too cold 4 See dispensed product too hard pg42
TROUBLE-SHOOTING CHART COMPRESSORICONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor will not start -hums intermittently (cycling on oyerload)
1 Improperly wired
2 Low line Yoltage
3 Open starting capacitor (single phase only)
4 High discharge pressure
1 Check wiring against diagram
2 Ask power company to increase YOltage to not less than 10 below nameplate rating or install transformer Check for inadequate wire size
3 Replace starting capacitor
4 CheCK water regulating valve setting Check water or air condenser and clean if necessary Make sure disshycharge shut-oft valve is open
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor starts but remains 1 Low line voltage 1 Ask power company to in start windings increase voltage to not less (Single phase only) than 10 below nameplate
rating or install transrormer
2 Improperly wired 2 Check wiring against drawing Check wire size
3 Running capacitor shorted 3 Check by disconnecting running capacitor
4 Starting capacitor weak 4 Check capacitor replace
5 High disCharge pressure 5 Check water regulating valve check water or air condenser and clean il necessary Check discharge shut-off valve
Starter burned out 1 Low line voltage 1 Ask power company to inshycrease voltage to not less than 10 below nameplate rating or install transformer
2 Excessive line voltage 2 Ask power company to reduce voltage to maximum of 10 over nameplate rating
Starting capacitors burn out 1 Voltage 100 low 1 Ask power company to (Single phase only) increase voltage to not less
than 10 below nameplate rating or install translonmer
2 Improper capacitor 2 Replace capacitor with properly rated capacitor as listed in manual
Running capacitors burn out 1 Excessive line voltage 1 Ask power company to reshy(Single phase only) duce line voltage to not more
than 10 above rating 01 motor
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
45
46
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Unit operates long or continuously
1 Shortage of gas
2 Dirty condenser
3 Moisture in system
4 Compressor failing
1 Repair leak and recharge
2 Clean condenser
3 Evacuate and recharge system
4 Check compressor lor proper pressures If inadequate replace compressor
Head pressure too high 1 Refrigerant overcharge
2 Air in system
3 Dirty condenser (air cooled)
4 Unit location too warm (air cooled)
5 Restricted water cooled condenser
6 Water turned off or defective
1 Purge system
2 Purge system evacuate and recharge
3 Clean condenser
4 Relocate unIt away from restriction Place nothing against back or on top of unit
5 Clean or replace condenser
6 Turn on water Or replace water regulating valve regulating valve
Head pressure too low 1 Shortage 01 refrigerant 1 Repair leak and recharge
2 Water regulating valve open 2 Adjust regulating valve too wide
Water 1I0wing through water 1 Water regulating valve 1 Replace water regulating valve waste line when unit is not in operation
defective
Noisy compressor 1 Tubing raUle 1 Bend tubes away from contact
NOTE Refer to warranty card prior to compressor replacement
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING DPR PUMP
TROUBLE PROBABLE CAUSE REMEDY
Pump will not run 1 Pump cover removed 1 Install pump cover
2 Pressure switch actuating 2 Free bulton-check spring and
bulton stuck open (in) pressure switch alignment
3 Pressure switch burned out 3 Replace pressure switch
4 Starting switch in motor bad 4 Install new starting switch
5 Motor burned out 5 Replace motor
6 Circuit breaker kicked out 6 Allow to re- set Replace it or faulty circuit breaker will not
automatically re-set
Motor runs-cam drive plate 1 Loose cam drive plate 1 Tighten set screw in cam will not turn drive plate Check woodruff key
2 Gear stripped 2 Replace gear
Pump will not shut off Mix 1 Pressure swilch actuating 1 Free button-check pressure shoots out pressure relief bulton stuck closed (out) switch alignment
2 Pressure switch stuck in 2 Replace pressure switch closed position
3 Pressure switch assy out 3 Using pressure gauge adjust of adjustment pressure
4 Dirty or plugged diaphragm 4 Disassemble and clean housing (Ref 42) housing
5 Defective O-Ring on 5 Replace O-Ring pressure relief piston
Pump will not prime 1 Insufficient supply of mix 1 Replenish mix supply
2 Piston O-ring defective-no 2 Replace piston O-Ring and suction lubricate
3 Washer valve not sealing 3 Replace washer valve DO NOT LUBRICATE
Pump primes No pressure in 1 Sleeve (Rei 29) not sealing 1 Replace sleeve DO NOT cylinder properly LUBRICATE
2 Loose hose connection on 2 Install or tighten hose clamp pump valve housing (Ref 27)
Mix shoots out Of air intake line 1 Washer valve (Ref 25) 1 Replace washer valve-DO not sealing properly NOT LUBRICATE
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOfT SERVE bull SHAKE bull SLUSH
47
48
TROUBLE-SHOOTING DPR PUMP
Too much air overrun too high-popping problems
Product dispenses slowly out of disPenSing head
1 Air meter too large (Ref 45)
2 Air leak befween mix conshytainer and mix inlet
3 Air line hose crackedshysucking air (Ref 44)
4 Pump pressure too lowshycylinder not full
1 Pump pressure too low
2 PrOduct too cold
3 Low overrun
Diaphragm housing leaking mix 1 Diaphragm housing loose
2 Diaphragm defective
Piston drive assy noisy 1 Bushing bearing worn
2 Defective gear in gear motor
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SIfAKE bull SLUSH
REMEDY
1 Replace washer valve-DO NOT LUBRICATE
2 Install clamp on hose
1 Replace O-Ring and LUBRIshyCATE
1 Clean or replace air meter
2 Replace tube
1 Install smaller air meier
2 Repair as needed
3 Replace air line hose
4 Using pressure gauge adjust pressure switch
1 Using pressure gauge adjust pump pressure
2 Check product temperatureshyshould be about 18 F
3 Check meter-if plugged-clean
1 Tighten wing nuls (Ref 41)
2 Replace diaphragm (Ref 43)
1 Replace bushing bearing (Ref 19)
2 Replace gear
TROUBLE
Mix inlet hose loses prime
Mix on top of piston
PROBABLE CAUSE
1 Washer valve (Ref 25) not sealing properly
2 Mix inlet hose loose
1 Piston O-Ring leaking (Ref 22)
No Air (Overrun) 11 Ai r meter plugged (Ref I 45)
2 Curved air tube pinched
--
DPR PUMP aI
PART NO 199019(i) PART NO 199020 reg DIAPHRAGM RUBBER SLEEVE
PART NO159295 PART NO 159282reg O-RING O-RING0
PART NO 160581reg O-RING
o PART NO PART NO
PART NO199011() 160611(8) 160582 WASHER VALVE O-RING O-RING
PISTON
cJ
DIAPHRAGM HOUSING
CYLINDER
VALVE HOUSIN6 ASSEMBLY
PUUPOUTLET
DRAIN PORT
I PHNO309-755-4553 O-RING CHART HCDUKEampSONINC I
1 I84Z08 SOFT SERVE DISPENSING HEADS I
o PART NO 1605620
PAR~159--1b
PART NO PART NO 1605841 59295()
I PHNO 309-755-4553 O-R ING CHART HCDUKEampSONINC I
- Cover
- Table of Contents
- Safety
- Uncrating amp Inspection13
- Explanation of Electrical Controls
- Operation of Machine
- General Information
- Maintenance amp Adjustment
- Parts Breakdowns
- Trouble-Shooting Charts
- O-ring Charts
-
OPERATION OF MACHINE DISASSEMBLY AND WASHING
Your Soft Serve machine has been completely tested at the factory It is important that the machine be dismantled washed and lubricated before operation
CAUTION ALL CONTROL SWITCHES MUST BE IN THE OFF POSITION AND THE MAIN POWER SUPPLY DISCONNECTED FOR DISASSEMBLY AND REASSEMBLY BE SURE THE MACHINE IS DEPRESSURIZED BEFORE PROCEEDING (See page 13)
Refer to pages 37 38 and 39
Remove the plunger switch rod by lifting this rod up and swinging the bottom portion out and then pulling down Place the plunger switch rod on the drip tray Remove the two hand knobs and pull the head assembly straight out You will find that this is tight as there is an a-ring on this head Remove lever pin pull out handle and plunger
Remove cylinder bushing and pull out the beater shaft holding the knives as you do so Remove rear seal from shaft Take the head and beater shaft assemblies to the washing area Wash all parts thoroughly in a warm detergent solution and then rinse Wash the drain tube and cylinder using the brushes supplied
NOTE Do not dry any parts - reassemble them wet or allow to air dry
NOTE All O-rings must be removed in order to properly wash parts
Remove the DPR Pump from the cabinet in the bottom of the freezer Details on this are given in the pump section of this manual on pages 9-10 following
LUBRICATION AND REASSEMBLY
NOTE We recommend using Petrol Gel or equivalent
Lubricate the a-ring inside the rear seal Place it on the shaft so cup side will be against back of freezing cylinder DO NOT LUBRIGA TE THE GRAY RUBBER SEAL This seal is held under tension against the back of the cylinder when the beater and door are in place The cup seal remains stationary while the shaft turns freely in the plastic bushing Place both blades on the beater shaft and slide the beater into the cylinder Make sure the blades are installed properly The portion of the blade containing 2 knobs should face away from the cylinder walls When inserting the beater place the rear blade on the bottom of the cylinder This will center the beater and allow alignment with the drive coupling Push the beater shaft in and rotate until beater is engaged in the drive coupling The front of the beater shaft when engaged in coupling should be about 12 inside the cylinder Lubricate the inside surface of the cylinder bushing and install in cylinder
CAUTION ALWAYS MAKE SURE THAT THE BEATER BUSHING IS ON THE FRONT OF THE BEATER SHAFT OPERATION WITH A MISSING OR BADLY WORN BEATER BUSHING WILL DAMAGE THE BEATER AND CYLINDER
Lubricate the a-rings on the dispensing plunger and insert the plunger half way into the head Insert the plunger handle and lock in place with the lever pin Lubricate the 4 a-ring and slide the head assembly over the two cylinder studs Replace the two hand knobs and tighten the head on the cylinder DO NOT overtighten the knobs If leakage occurs check the 4 a-ring Replace the plunger switch rod
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALllY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
9
10
DPR PUMP OPERATION AND MAINTENANCE A CAUTION ALL CONTROL SWITCHES MUST BE IN THE OFF POSITION AND THE MAIN POWER SUPPLY DISCONNECTED FOR DISASSEMBLY AND REASSEMBLY
DISASSEMBLY
Step 1 - Reference DPR pump breakdown pages 40 and 41 for assistance in identificashytion of pump parts and their associated reference numbers If the pump has been in operation be sure that it is depressurized before proceeding to step 2
Step 2 - Remove attached mix hoses and pump cover (Ref 46)
Step 3 - loosen the thumb screw (Ref 18) and swing away the clamp (Ref 16) Carefully remove the entire pump assembly from the pump support (Ref 2)
Step 4 - Remove wing nuts diaphragm housing and diaphragm (Ref 41 42 and 43)
Step 5 - Further disassemble the pump by removing the piston assembly including the piston connecting rod and wrist pin (Ref 20 21 and 23) Separate the wrist pin and connecting rod from the piston Remove the curved air tube air meter outlet hose adapter and cylinder (Ref 24 31 44 and 45) from the valve housing assembly (Ref 27)
Step 6 - Grasp the outlet hose adapter asembly (Ref 31) and remove the keeper (Ref 39) while pressing inward on the drain port (Ref 35) Carefully lift and remove retainer clip (Ref 30) Caution must be exercised when removing the retainer clip as the relief mechanism parts (Ref 33 34 and 35) are spring loaded Remove the piston spring and drain port
Step 7 - Remove all a-rings rubber sleeve (Ref 29) and washer valve (Ref 25) All parts disassembled in steps 2 through 7 should be washed thoroughly in a solution of mild detergent and water not exceeding 120deg F Rinse all parts
NOTE All O-rings must be removed in order to properly wash parts
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Mohne illinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
LUBRICATION AND REASSEMBLY
Reassemble by reversing the steps on page 10 and lubricate as follows
When replacing the flat rubber washer (Ref 25) DO NOT LUBRICATE Important -This rubber washer acts as the air and mix check valve and must lie flat against the top of the pump valve housing Install it over the mushroom cap and move it around to make sure that it is sealed Ins~n the sleeve (Ref 29) Like the washer valve this should not be lubricated and fits on the pump valve housing with the tapper to the bottom
All the O-rings on the pump should be lubricated lightly The O-ring on the piston (Ref 21) should be lubricated liberally as this is the major wearing O-ring and must provide a good seal
Install the O-ring and spring on the piston (Ref 33) Lightly lubricate the O-ring (only enough to make it shiny) Install the piston with the O-ring end in first Lubricate the O-ring on the drain port and install it in the adapter Push in on the drain port and slide the clamp over the top to lock it in place Place the keeper (Ref 39) over the exposed end of the drain port and install the hose and clamp on the drain port Install the pressure switch diaphragm in the diaphragm housing
The pressure switch diaphragm (Ref 43) requires no lubrication
Install the diaphragm housing and diaphragm on the two studs and tighten wing nuts hand tight Install the pump assembly on the bracket-drive assembly in the refrigerated cabinet The shoulder of the white bushing (Ref 19) faces the drive cam (Ref 13) when slid into place properly Be sure to insert the mix output body (Ref 31) over the diaphragm housing (Ref 42) Return swing and adjusting clamp to closed position and tighten thumb screw Replace mix hoses and tighten all hose clamps
NOTE The pump will not operate without the cover (Ref 46) in place
WARNING
MAKE SURE ALL HOSE CONNECTIONS AND THE SWING A CLAMP ARE TIGHT BEFORE PRESSURIZING MACHINE THIS SYSTEM PRODUCES 30-32 PSI DURING NORMAL OPERATION
11
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH PrIntId USA
12
SANITIZING INSTRUCTIONS
The washing and sanitizing instructions explained in this manual are required to maintain a clean sanitary machine Your Soft Serve machine should be disassembled cleaned and sanitized to insure the best possible product and machine operation
Prepare a solution of sanitizing water (for each barrel) in a 2-3 gallon container (Solution should be 200 PPM chlorine using Diversol or equivalent) Place the container in the refrigerated cabinet and insert the mix inlet hoSe or stainless steel mix tube in the sanitizer Turn the pump switch ON (located at front of machine) and allow the pump to build up pressure and shut off automatically Turn the selector switch to the CLEAN OUT position and allow the beater to run for 5 minutes This insures the sanitizing solution touching all of the internal parts Placing a container under the dispensing head release the solution from the cylinder by depressing the dispensing handle Do this slowly as the cylinder is under 30 pounds pressure HINT Remove serrated nozzle (Ref 2) for this operation Sanitize nozzle and install when mix is ready to be dispensed Leave the dispensing handle down until the pump has forced all or most all of the solution through the machine When completed turn the selector switch and pump switch OFF You are now ready to start your freezer
You are working with a pressurized machine Always check for possible leaks when sanitizing your machine A leak around the head is obvious and usually calls for the replacement of the dispensing head O-rings A leak in the shaft seal will flow out of the drain tube just below the dispensing head This usually requires the replacement of the shaft seal or shaft seal O-ring Any leakage in the pump would require that the O-ring be replaced at the point of leakage
NOTE Sanitizing is always done prior to starting the machine Never sanitize the day belore and let the machine sit overnight
START UP INSTRUCTIONS
After sanitizing immediately fitl the container with mix Place the mix inlet hose or stainless steel mix tube in the container of mix (If you are using a plastic bag container supshyplied by the dairy it is recommended that you notch the plastic hose or use a perforated mix can tube so that the bag cannot be drawn into the mix inlet restricting the flow of mix If not careful a hole can be made in the bag) Sanitizer will remain in the pump mix hose and cylinder Turn the pump switch on starting the pump and depress the dispensing handle opening the dispensing plunger Leave the dispensing plunger open until you receive
pure mix at the nozzle The mix will push the remaining sanitizer out of the machine if the plunger is left open Close the plunger after removing all remaining sanitizer (See page 20)
After the cylinder is pressurized and the pump has shut off place the selector switch in the AUTOMATIC position At this pOint make sure the cabinet switch is at the ON position and the thermostat switch is at the DAY position Allow the machine to cycle and freeze down Normally several refrigeration cycles will be needed before a frozen product can be dispensed
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
It is impossible to start the freezer and not have excess air in the cylinder Since you have air in the cylinder and the pump is also adding air to the mix on first start up you will have air pockets in the cylinder These pockets can be eliminated if after two or three cycles you will turn the selector switch to the OFF position Pump switch must be at ON position With the selector switch off slowly open the dispensing plunger and bleed off the excess air until liquid mix comes out the dispensing head Close dispensing handle allow the cylinder to fill and turn selector switch to AUTOMATIC At least 30 minutes cycling time should be allowed to insure a ready produ~l
CLEANING PROCEDURE - DRAINING MACHINE
Place selector switch on the front of the machine to CLEAN OUT and let the beater run for about five minutes This will allow the product in the cylinder to soften up Place a clean sanitized container under the dispensing nozzle and very slowly draw off the semishyfrozen cream until liquid mix appears at the nozzle Remove the stainless steel mix tube or mix hose from the mix container Leave the dispensing plunger open until all the mix has run out of the cylinder and place the container in the cooler for storage Place the mix inlet hose in a container of cold water allow the cylinder to pressurize and flush the machine with the selector switch on CLEAN OUT Follow with a container of warm water until machine is rinsed clean Place the selector switch and pump to OFF Refer to disassembly instructions (Ref page 9)
WARNING
YOUR SOFT SERVE MACHINE OPERATES ON 30-32 POUNDS PRESmiddot A SURE NEVER DISMANTLE ANY PART OF THE MACHINE UNLESS THE MACHINE HAS BEEN DEPRESSURIZED THE SELECTOR
SWITCH IS IN THE OFF POSITION AND THE MAIN POWER SUPPLY HAS BEEN DISCONNECTED DEPRESSURIZE THE CYLINDER BY OPENING THE SPIGOT WITH THE PUMP SWITCH IN THE OFF POSITION
CLEANING MIX HOSE
The CAB models use the DPR mix pump You must disconnect the mix hoses and clean them thoroughly USing a long handle brush and a suitable cleanersanitizer you must brush the interior of the mix hose to insure there is no build up of product on the walls of the hose Water temperature for this cleaning process should be 1800 F to meet some health codes After reassembly pump sanitizer through the hoses
Mfg by H C DUKE amp SON INC 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
13
14
GENERAL INFORMATION OVERRUN ADJUSTMENT
The overrun on your CAB machine equipped with a DPR pump is regulated by the air meter (Item 45-pump parts breakdown) You are supplied with three air metering plugs each containing a different size orifice The smaller the hole the lower the overrun The larger the hole the higher the overrun The orifice or hole in this air meter must be open at all times It is the only source of air into the freezing cylinder Check this daily
The mix will be a determining factor as to the amount of overrun you will be able to achieve Some mixes will accept more air than others thus regulating the size of air meter you can use Test to see which air meter will give you the best overrun and the best tasting shake Run each air meter for one day until you make the determination You may have a slightly higher overrun when you first start up the machine When the machine has run long enough to dispense at least one full cylinder of product you will have the overrun that the machine wil hold the remainder of the day
ADJUSTING PUMP PRESSURE
Only to be performed by a qualified service technician
A WARNING
DISCONNECT MAIN POWER SUPPLY BEFORE REMOVING PANELS
NOTE The pump will not operate without the cover in place
The DPR Pump is controlled by pressure in the mix line acting on the diaphragm (Ref 43) As the pump fills the freezer cylinder with mix pressure builds causing the diaphragm to expand As the diaphragm expands it contacts the button (Ref 51) which in turn depresses the pump pressure switch (Ref 60) The pressure switch button moves inward until the switch is opened turning off the pump motor When product is drawn from the freezer the diaphragm closes the pump pressure switch allowing the pump motor to restart Pump pressure will check the same with air mix or water We suggest the pressure be checked with air pressure only
Step 1 - Remove the rear panel from machine and the pump electrical box cover (Ref 6)
Step 2 - Locate the pressure adjusting nut (Ref 59) Turn the adjusting nut clockwise to increase pressure or counterclockwise to decrease pressure Usually one half turn of the adjusting nut will raise or lower the pressure of the model DPR pump two (2) PSIG
Step 3 - Install a quality pressure gauge in the mix output line Turn main power supply and pump switch to ON pOSition Caution Electrical power present through entire machine Allow the pump to pressurize until it shuts off automatically Observe the gauge pressure reading and disconnect main power supply Repeat the adjustment steps 1 through 3 until the proper pressure is obtained (30 to 32 PSIG) Reinstall the electrical box cover and rear panel
NOTE Pressure tine must be at least 6 fI long in order to obtain an accurate reading
A Pressure Gauge PIN 112791 may be purchased from your local distributor
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
PRESSURE RELIEF ASSEMBLY
The model DPR Pump incorporates a self contained safety pressure relief system The parts included in this assembly are (Ref 30 through 39) Any discharge of mix through the hose (Ref 37) is an indication of excessive pump pressure For corrective action refer to the trouble shooting section of this manual
REFRIGERATION SETTINGS
A WARNING
DISCONNECT MAIN POWER SUPPLY BEFORE REMOVING PANELS
The CAB Soft Serve machine contains two types of temperature control devices the expansion valve and the thermostat (explained in Thermostat Section) The expansion valve meters the flow of refrigerant to the cylinder and must be set correctly to give you maximum production
To locate the expansion valve remove the side panel On the single head CAB machines remove the right side panel The double head machines will have an expansion valve behind both right and left side panels
The expansion valve should only be adjusted by a refrigeration technician with refrigeration test gauges connected to the compressor Adjustments to the valve are shown in the following chart
REFRIGERATION SETTINGS MODEL TYPE OF COOUNG WATER AIR 917CAB 927CAB 957iAa I
Cyl Suction Pressure Rmiddot502 15middot17 (PSIG) 15-17 (PSIG)
9711CAS Cyl Suction Pressure R-502 15middot17 (PSIG) 15middot17 (PSIG)
ALL SOFT SERVE
CABS
Cab Suction Pressure Rmiddot502 Head Pressure Thermostat Differential
8middot10 (PSIG) 230-240 (PSIG)
17degmiddot22deg 7deg~8c
8-10 (PSIG) 230middot315 (PSIG)
17deg_22deg 7c -8deg
NOTE To correctly set the cylinder expansion valve the cabinet thermostat switch An must be in the OFF position (Full counterclockwise) with the compressor running
NOTE To correctly set the cabinet expansion valve the selector switch must be in the OFF position and the cabinet switch in the ON position (With the compressor running)
A refrigeration test gauge must be used when adjusting the suction pressure To reduce the suction pressure turn the adjustment screw on the expansion valve counterclockwise Do not turn more than 14 turn at a time Let the unit operate a sufficient length of time - at least two minutes - to properly read on the gauge the adjustment made
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline illinOIS 61244
SUPERIOR QUAUTY FREEZERS bull SOFt SERVE bull SHAKE bull SLUSH
15
16
THERMOSTATS
A WARNING
DISCONNECT MAIN POWER SUPPLY BEFORE REMOVING PANELS
Thermostat Au is the cabinet refrigeration thermostat The cabinet thermostat operates off of both the day and night switch operation to maintain 44 0 F or lower in the mix storage cabinet This thermostat can be adjusted by rotating the adjustment knob To set this thermostat colder turn the adjustment knob clockwise
CYLINDER THERMOSTAT
The cylinder thermostat is located behind the right side panel (on single head CABs) faCing the front of the machine On the double head CABs like the expansion valve a cylinder thermostat is located behind both the right and left side panels This control has two settings The first is the differential which should be set on 7-8deg F The other side of the control marked HIGH EVENT should be set between 17-220 F
The purpose of the cylinder thermostat is to maintain an 18deg F product during idle periods If the thermostat is set too cold and product is not drawn out of the machine a freeze up condition will result DO NOT run the product below 17deg F
NOTE The settings on the thermostat are ONLY to be used as a guide
For a correct adjustment a thermometer must be used to check the actual product temperature Each thermostat should be set in the field for the product being used Most of the time a temperature setting of between 18deg and 19deg F will maintain a satisfactory product Once the thermostat is set for the mix used it should require no further adjustment
MIg by H C DUKE amp SON INC 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH P~IIIIUSA
THERMOSTAT_________ Turn knob clockwise to make product colder
Differential adjustment
copy
COLDER ~ reg
copy5
2 6Igt
1 7 OFF
copy
THIS ASSEMBLY USED ON LEFT SIDE OF UNIT
RIGHT SIDE USES THIS ASSEMBLY WIO THERMOSTAT A (CAB THERMOSTAT)
MIg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
17
18
MAINTENANCE AND ADJUSTMENT
ONLY TO BE PERFORMED BY A QUALIFIED SERVICE TECHNICIAN
WARNING
MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFF POSITION AND THAT THE MAIN POWER SUPPLY IS DISCONNECTED BEFORE REMOVING PANELS
LUBRICATION INSTRUCTIONS
FAN MOTOR (Air Condenser) Lubricate annually with SAE 10 motor oil in the oil cups
CAUTION DO NOT OVER-LUBRICATE OVER-LUBRICATION CAN DAMAGE MOTOR
GEAR REDUCER The gear reducers are heavy duty worm-geared units manufactured to HC Duke specifications II traces 01 oil are found in the immediate area around the reducer repair the leak (usually an oil seal) and check the oil level When adding oil use only synthetic gear lube in the reducer
NOTE This is a special oil and will not mix with a petroleum base oil Contact your distributor when this oil is needed This oil should be changed at least once a year
OIL LEVEL PLUG
PROPER OIL LEVEL
OIL DRAIN USE SPECIAl PLUG OIL ONLY
USE SPECIAL LOILON=LY-- I
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH ~1U8A
MAINTENANCE AND ADJUSTMENT ONLY TO BE PERFORMED BY A QUALIFIED SERVICE TECHNICIAN
WARNING
MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFFA POSITION AND THAT THE MAIN POWER SUPPLY IS DISCONNECTED BEFORE REMOVING PANELS shy
BEATER MOTOR Beater motors are either single or three phase Capacitor starting is used on the single phase units The beater motor should be inspected and cleaned
WATER COOLED CONDENSER Depending on the condition of your water the condenser on your CAB machine may require cleaning from time to time Usually a restricted flow of water resulting in a high head pressure indicates a dirty condenser The condenser should be flushed out with an acid solution by a qualified service technician
AIR COOLED CONDENSERS At least once a month the face area of the condenser should be inspected for accumulation of dirt and dust Surface dust and dirt can usually be removed with a stiff brush andor vacuum cleaner After brushing hold a light between the fan blades and look through the condenser from the opposite side This procedure will locate those areas where accumulated dirt has lodged between the condenser fins To clean these areas obtain a small tank of nitrogen or C02 with a needle control valve or pressure regulator with a small hose attached and proceed as follows
(1) Place a damp towel or cloth over the face area of the condenser
(2) Open the control valve or regulator on the tank releasing pressure to the coil from the back side cleaning the condenser
(3) Check the condenser periodically with the light and continue the treatment until the fins are clean
For maximum performance replace all worn O-Rings Seals Blades etc
CAUTION USE ORIGINAL OR AUTHORIZED REPLACEMENT PARTS ONLY WITH THIS FREEZER
Mig by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline illinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
19
20
PULLEY ALIGNMENT AND BELT TENSION ONLY TO BE PERFORMED BY A QUALIFIED SERVICE TECHNICIAN
WARNING
A MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFF POSITION AND THAT THE MAIN POWER SUPPLY IS DISCONNECTED
Remove the side panels to expose the pulleys and belts
Check the alignment of the beater motor pulley and gear reducer pulley by placing a straight edge across the faces of the two pulleys If the pulleys are not aligned adjust as necessary until proper alignment is obtained
Depress the belts with a finger at a point midway between the two pulleys When properly adjusted the belts should depress 12 from its normal position with approximately 5 pounds of pressure If the belts are too tight or too loose adjust as necessary until proper belt deflection is obtained Loosen four (4) bolts which hold the motor mounting plate to the frame With these loose adjust tension bolt in or out as required to obtain proper belt tension Retighten bolts
BELTS
Periodically inspect the belts If they are worn excessively replace both belts For best results it is advisable to replace both belts as they are manufactured in matched sets
SCRAPER BLADES
NOTE Be sure to purge all of the sanitizer from the mix system before operating the freezer (see page 12) Failure to completely remove sanitizer or water trom the freezing cylinder before placing the machine in the Automatic position may cause blade breakage and damage the freezer
o o
NEW BlADE WORN BLADE
Replace blades if worn 316 or more
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
END PLAY FOR BEATER DRIVE COUPLING
It is very important that the drive coupling located on the gear reducer be set properly Referring to the Drive Coupling Illustration the following procedure should be followed in setting the end play
WARNING
MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFF POSITION AND THAT THE ELECTRICAL POWER TO THE MACHINE IS DISCONNECTED SO THAT THE UNIT WILL NOT OPERATE
------
DRIVE COUPLING ILLUSTRATION
REF DESCRIPTION REF DESCRIPTION 1 Gear Reducer 6 Reducer Mounting Plate 2 Beater Shaft 7 Set Screws 3 Shaft Seal 8 Bolt Gear Reducer 4 Drive Coupling 9 Bolt Reducer Mounting Plate 5 Spacer 10 Key
11 Output Shaft
Improper drive coupling spacing will damage the beater shaft dispensing head and drive coupling When checking end play settings or replacing a coupling proceed as follows
REMOVING COUPLING
WARNING
DISCONNECT MAIN POWER SUPPLY
Mig by H C DUKE amp SON INC bull 2116 Eighth Allenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SO SERVE bull SHAKE bull SLUSH
21
22
(1) Remove Beater Shaft (Ref 2)
(2) Remove both drive belts (not shown)
(3) Remove gear reducer bolts (Ref 8) Six (6) bolts are located around the face of the reducer
NOTE Remove the top bolt last holding the bottom of the reducer as you do so
(4) Remove the gear reducer (Ref 1) and place-on table or bench
(5) Replace two (2) bolts (Ref 8) one (1) at the top and one (1) at the bottom so that the reducer cover will not come off while the coupling is changed
(6) Loosen the four (4) set screws (Ref 7) and remove the drive coupling (Ref 4) Should the coupling be stuck tight to the ouput shaft lightly tap the coupling from the back with a hammer and bar Sometimes due to age this coupling will stick so tight it will have to be removed with a pulley removing tool or a wheel puller
(7) Remove the key (Ref 10)
INSTALLING THE NEW COUPLING
(1) Clean gear reducer output shaft (Ref 11) with fine emery cloth and slide the new drive coupling on the reducer shaft The coupling should slide on the shaft all the way without the key If the coupling doesnt slide completely on check both coupling and reducer shaft for burrs When a smooth sliding fit is achieved remove coupling and proceed with final assembly
(2) Place key (Ref 10) in keyway slot on the reducer output shaft Keep the key flush with the front end of the output shaft (Ref 11)
(3) Slide the coupling (Ref 4) on the output shaft until it bottoms out on the shaft Leave the four (4) set screws loose as the coupling will have to be adjusted
(4) Remove the two (2) bolts added in preceding Step 5
(5) Place one (1) gear reducer bolt (Ref 8) in the top hole of the cylinder mounting plate
(6) Insert gear reducer into cylinder mounting plate and start top bolt (Ref 8) Do nol tighten completely Now insert the other bolts one at a time When all bolts are in tighten each boll
NOTE Due to very close tolerance between the gear reducer and cylinder mounting plate no alignment is required when Installing the reducer When the reducer bolts are tightened the reducer will seH-align with the cylinder
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
(7) Insert the beater shaft (Ref 2) with the shaft seal and blades into the cylinder and engage beater shaft in the drive coupling Place bushing on front of beater shaft
(8) Tape a dime (10 cents) to the back of the dispensing head in the very center at the point where the beater shaft touches the dispensing head The dime is used to acquire the proper end play setting on the drive coupling which is approximately 332
(9) Place the dispensing head into the cylinder and tighten with the hand knobs Important make sure hand knobs are tight and head is against the end of the cylinder tube
(10) Slide the drive coupling (Ref 4) forward until it is tight against the beater shaft and lock into place the four (4) set screws (Ref n
(11) Remove the dime from the back of the dispensing head
(12) Replace the drive belts
(13) Turn on electrical power
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
23
PANEL BREAKDOWN - 917CAB
~--~
3
REF PART No 1A 114544 1B 112991 2A 136075 2B 136102
3A 137027 3A 137028
3A 136105 3B 136103
3B 134817 4 134818
4 136101 5A 114780
5A 113570 5B 112967
6 112960 7 133291
24 A 917CAB only
I
dJ
DESCRIPTION Frame ssmiddoty Frame ASsmiddoty Lower Side Panel Lower Side Panel LH Side Panel RH Side Panel Upper Side Panel Upper Side Panel Upper Side Panel Rear Panel Rear Panel Top Cover ASsmiddoty Top Cover ASsmiddoty Top Cover ASsmiddoty Filler Panel ASsmiddoty Top Filler Strip
B bull 44 CAB only
~
[At 16 lt0
REF 8
9 10 11 12 12A 13
14 15 16 16A
Air Cooled only
PART No DESCRIPTION 132687 Dispense Panel 134247-01 Dispense Panel Cab-W
Drip Tray (See Pg 35) 114260-01 Door Assmiddoty wIHinges 132444-01 Left Hand Filler Strip 162045 Upper Hinge 162052 Spring LH 162046 Lower Hinge 160026 Screw 160020 Bolt 160139 Washer 110205 Syrup Jar Enclosure 160563-01 Door Gasket 01-Groove) 159174 Drip Tray Button 160293 Clip for Button
Water Cooled only
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
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REF PART No DESCRIPTION REF PART No DESCRIPTION 1 114538 Frame Assy 10 162045 bull Upper Hinge 2 136289 Side Panel LH lOA 162052 Spring LH 3 136313 Rear Panel 11 162046 Lower Hinge 4 114006 Top Panel AC llA 160026 Screw 4A 114428 Top Panel WC l1B 160020 Bolt 4B 114157 Top Panel AC Remote l1C 160139 Washer 5 113983 Front Panel Assy 927CAB 12 136216 Side Panel RH 5A 113985 Front Panel Assy 957cAB 13 160563 Door Gasket (V-Groove) 6 130021 Rear Corner Channel RH 14 159174 Drip Tray Button 6A 135254 Rear Corner Channel LH 14A 160293 Clip for Button 7 137228 Dispensing Panel 162108 Stop Pin (Screw In) 8 Drip Tray (See Pg 35) 136199 Door Pull 9 114260 Door Assy wHinges
25
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
SOFT SERVE CAB ELECTRICAL BOX
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 Contactor (Order By Freezer 5 150463 Selector Switch
Serial Number) 6 159235 Toggle Switch (Pump) 2 Overload (Order By Freezer 7 150456 Spigot Switch
Serial Number) 7A 136124 Button - Spigot Switch 2A Heater Coil (Order By Freezer 7B 162302 Spring - Spigot Switch
Serial Number) 8 150553 Pilot Light - Amber 3 Starter (Order By Freezer 9 150552 Pilot Light - Red
Serial Number) 10 161026 Thermometer (Not Shown) 4 150208 Timer
26
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Pointed u
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Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prifllcl If USA
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SOFT-SERVE - SINGLE HEAD CAB
REF PART No 1 151351
2 3 4 5 6 151044
151052 7
8 155039 9 155400 10 155117
11 151084
12A 159021 13 155401 13A 155423 14 155403 15 155422
16 154976 16 154975 17 159203 18 155051 19 112901
155410 20 155044
151348
DESCRIPTION Capacitor Relay Assembly (single phase)
150247 Start Capacitor
150249 Run Capacitor 150245 Relay Motor Capacitors (order by freezer serial no) Gear Reducer (see gear reducer breakdown page 36) Driven Pulley (order by freezer serial no) Belt (order by freezer serial no) Motor 1-phase 230 volt Motor 3-phase 208230 volt Driver Pulley (order by freezer serial no)
Water Condenser Automatic Expansion Valve (Cylinder) Air Condenser
Condenser Fan Motor
Condenser Fan Blade High Pressure Cut-Out shyHigh Pressure Cut-Out shyLow Pressure Cut-Out Solenoid Valve
Compressor 230160
AC WC
Compressor 208-230360 Sight Glass Drier (38) Receiver Tank Assembly Water Valve (not shown) Service Valve Compressor Mounting Kit
Note I) lt0 For All 50-Cycle Freezers Order By Freezer Serial Number
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Printad I usA
30
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SOFT-SERVE - DOUBLE CAB - WATER COOLED REF PART No DESCRIPTION 1 155026 Water Condenser (B-side) 1 A 155039 Water Condenser (A-side) 2 159203 Sight Glass 3 155051 Drier (38) 4 155400 Automatic Expansion Valve (Cylinder) 5 Gear Reducer (see gear reducer breakdown page 36) 6 155410 Water Valve 7 155423 High Pressure Cut-Out 8 155403 Low Pressure Cut-Out 9 154976 Compressor 230160
151351 Capacitor Relay Assembly (Single Phase) 150247 Start Capacitor 150249 Run Capacitor 150245 Relay
9A 154975 Compressor 208-230360~-11 NOT USED ON THIS MODEL 12 155442 Low Temp Control 13 Driven Pulley (order by freezer serial no) 14 Belt (order by freezer serial no) 15 Driver Pulley (order by freezer serial no) 16 155422 Solenoid Valve 17 151044 Motor 1 phase 230 volt 17A 151052 Motor 3 phase 208230 volt 18 Motor Capacitors single phase only (order by freezer serial no)
Note For All 50-Cycle Freezers Order By Freezer Serial Number
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Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH _InU5A
32
c W J o o o -a oCt
aI oCt o W I m ) o c w gta w Ch t--LL o Ch
SOFTmiddotSERVE bull DOUBLE CAB - AIR COOLED REF PART No 1 155120 2 159020 3 151080 4 155400 5 6 159203 7 155051 8 112901 9 151044 9A 151052 10 11 12 14 154976
14A 154975 15 155401 16 155403 17 155443 18 155442 19
21 155422
DESCRIPTION Condenser Fan Blade Fan Motor Automatic Expansion Valve (Cylinder) Reducer (see gear reducer breakdown page 36) Sight Glass Drier Receiver Assembly Motor 1-Phase 230 Volt Motor 3-Phase 208230 Volt Driven Pulley (order by freezer serial no) Belt (ordr by freezer serial no) Driver Pulley (order by freezer serial no) Compressor 230160 151351 Capacitor Relay Assembly (Single Phase)
150247 Start Capacitor 150249 Run Capacitor 150245 Relay
Compressor 208-230360 High Pressure Cut-Out Low Pressure Cut-Out Cabinet Thermostat Low Temp Thermostat NOT USED ON THIS MODEL Motor Capacitors single phase only (order by freezer serial no) Solenoid Valve
Note For All 50-Cycle Freezers Order By Freezer Serial Number
Vl Vl
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prinled In USA
CAB PARTS BREAKDOWN
REF PART No DESCRIPTION PART No DESCRIPTION 1 155109 Cabinet Coil 136297 Condensate Pan (Not Shown) 1A 155113 Motor Cabinet Fan 196092 Mix Tank 7-12 Gal 1B 155099 Fan Blade Cabinet Coil 113997 Front Lid Mix Container
7-12 Gal 136248-01 Rear Lid Mix Cont 7-12 Gal
10 155416 CAB Automatic Expansion 130092 Mix Tube Valve 196028 Mix Tank 10 Gal
137119 Probe 11 -1 4 shy1E 155114 Fan Grill amp Bracket 7-12 Gal Container 1F 155116 Knob 137119-01 Probe 10-34 shy2 113898 DPR Pump Less Motor 7-12 amp 10
(see pump breakdown Gal Container pg 38) 137119-02 Probe 10-14 shy
3 196061 Mix Hose (sold by the foot) 10 Gal Container 4 150416 Door Switch 137120 Base Probe Mtg 4A 114630 Actuator Door Switch 160500 O-Ring
(Not Shown) 114572 Hose Clamp (Not Shown) 5 150527 Retractable Cordset 34
MIg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prlmd UsA
MERCHANDISING ASSY
PART No 115108 115107
PART No
196107-01 196108-01 114610 114608 115132 199030
PART No 162105 162106 112978 158004 158021 158022 158078 158000 158056 158000A 158014 158014A 161000 158049
DESCRIPTION 2S Merchandiser-927-957-978CAB 24 Merchandiser-917CAB
DRIP TRAY
DESCRIPTION
24 Drip Tray-917CAB 26- Drip Tray-927-957-978CAB 24 Tray Insert-917CAD 26 Tray Insert-978CAB-927CAB 26 Tray Insert-957CAB Rubber Bumper (only)
DESCRIPTION Caster With Brake Caster Without Brake Leg-6 4 Cylinder Brush Mix Hose Brush 58 Dia w6 Ft Handle 14 Pump Brush Drain Tube Brush Petrol Gel (12 tube carton) Petrol Gel (6 tube carton) Pe1rol Gel (per tube) Stera Sheen (per case) Stera Sheen (per jar) Pocket Thermometer 1 Dial Z32 Overrun Scale
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SNAKE bull SLUSH
35
36
GEAR REDUCERS Order By Freezer Serial Number
Model 3 CB
153345 5-1 Ratio B side 153004 High Speed Cup ~ (2 ea required) 153005 High Speed Bearing (2 ea required) 153008 Slow Speed Cup (2 ea required) 153009 Slow Speed Bearing (2 ea required) 153052 Slow Speed Seal (2 ea required) 153054 High Speed Seal (2 ea required) 153313 Brass Gear 5-1 Ratio 153336 Slow Speed Shaft Only 5-1 Ratio 153316 Worm Gear On Shaft 5-1 Ratio 114873 Gasket Set
Model 4 CB
153342 10-1 Ratio A side 153343 10-1 Ratio B side
153014 High Speed Cup (2 ea required) 153015 High Speed Bearing (2 ea required) 153011 Slow Speed Cup (2 ea required) 153012 Slow Speed Bearing (2 ea required) 153051 Slow Speed Seal (2 ea required) 153053 High Speed Seal (2 ea required) 153349 Brass Gear 10-1 Ratio 153339 Slow Speed Shaft OnIy 10-1 Ratio 153347 Worm Gear on Shaft 10-1 Ratio 114874 Gasket Set
Winlwin Model
153341 Wintwin 10-1 Ratio A and B Side
153014 High Speed Cup (2 ea required) 153015 High Speed Bearing (2 ea required) 153011 Slow Speed Cup (2 ea required) 153012 Slow Speed Bearing (2 ea required) 153051 Slow Speed Seal (2 ea required) 153053 High Speed Seal (2 ea required) 153349 Brass Gear 153350 Slow Speed Shaft Only 153348 Worm Gear on Shaft 11 4874 Gasket Set
158055 Gear Reducer OU 51001
Drive Coupling (Order By Machine Serial Number)
Mfg by H C DUKE amp SON INC bull 2115 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
917 amp 927 Beater Shaft Assembly
957 Beater Shaft
Item Part No Description
1 196079 Bushing-Cylinder 2 114752 Beater-Assy Long (Shaft) 3 137334 Blade-Scraper Soft Serve 4- 160500 O-Ring (Shaft Seal) 5- 133098 Bushing (Washer-Shaft Seal) 6 160557 Seal-Beater Shaft
-Items 4-6 111875 Seal-Assy Shaft (Complete)
31
1 113438 2 196079 3 137334 4- 160500 5- 133098 6 160557
-Items 4-6 111875
Shaft-Assy Beater Bushing-Cylinder Blade-Scraper O-ring (Shaft Seal) Washer-Shaft Seal (Bushing) Seal-Beater Shaft (Cup)
Seal-Assy Shaft (Complete)
ao
DISPENSING HEAD
16
r
Q
--~
-----_
REF PART No DESCRIPTION Tl3o 6 119928- Door Assembly shy Complete (Items 7-14) 11637- 7 196688 Door shy Less Parts
a 134921 Spigot shy Less Extension 9 134922 Handle Extension shy Spigot
10 162624 Handle 11 159295 OmiddotRings shy Spigot (Lots of 5)12 159309 O-ring shy 4 - Door 13 196066 Air Relief Screw 14 160621 a-Ring shy Air Relief Screw (Lots of 5)15 136126 Rod - Spigot Switch shy 917 8 927 16 136798 HMdKnob
38
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illmols 61244
SUPERIOR QUAUlY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
Duke Soft Serve Freezer Models 917R and 927RN
5 -______
7
6
UPDATEDDispense Head Assembly
Item Part No
115130 1 116321 2 160583 3 115129 4 160562 5 136126 6 134921 SA 162624 68 134922 7 159295 8 160584 9 162625 9A 114341 10 196185 10A 137870 108 136713
116410
Includes items 1-4 6-8
Description
Head-Assy Dispense (Complete) Head-Assy wActualor O-ring (Head-4-inch) Bleeder-Assy (Air Relief Plug) O-ring (Bleeder-Assy) Rod-Spigot Switch Spigot-long Single Handle-Black Tapered Handle-Spigot (Stainless Steel) O-ring (Spigot) O-ring (Extension) Knob-Hand Stud-Assy Cylinder 1-15116 inch (not shown) Nouie-Slar Adapter (accessory) Adapter-Yogurt Nozzle (not shown) Extension-Spigot (accessory-cake not shown) Kit-Dispense Head Switch
( Use only original or authorized replacement parts with this freezer )
DISPENSING HEAD
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH uu
REF PART No 114765
1 196082 2 114313 3 137018 5 136618 6 162626 8 134499 9 162625
10 115129 11 136794 12 159309 13 159295 14 160562 15 136713 16 160584
DESCRIPTION Door Assy-Complete Door-Less Parts Spigot Assy-Side Spigot Only-Center Extension Only-Center Handle Stud-Handle Stop Hand Knob Air Re1ief-Assy Rod-Spigot Switch O-Ring-4-Door O-Ring-Spigot O-Ring-Air Relief Extension-Spigot a-Ring
39
40
PUMP MOTOR AND HOUSING ASSEMBLY SAFETY SWITCH ASSEMBLY
PRESSURE SWITCH ASSEMBLY ijreg~
I
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH IIIUaA
CAB DPR PUMP BREAKDOWN
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 196091 Pump Base 46 114009 Pump Cover 2 136088 Pump Support 47 113464 Base Bracket Assembly 3 150784 Strain Relief Bushing 48 135725 Stud 1-78 4 Power Cord 49 160131 516 Flatwasher 5 160075 10-24 x 38 Screw 50 160293 Speed Clip 6 135416 Cover Electric Box 51 135724 Button 7 160141 14 Lockwasher 52 160140 10 Lockwasher 8 160491 14-20 x 34 Socket Screw 53 135726 Stud 3 9 113497 Motor Cord 18-3 SJT 54 160109 10-24 Hex Nut 10 151127 Motor 40 RPM Soft Serve 55 135729 Switch Actuator 11 160023 14-20 x 1 Screw 56 135731 Stop - Max Pressure 12 153317 Half Moon Key 57 162315 Spring - Soft Serve 13 112925 Cam Drive Plate Assembly 58 160138 10 Flat Washer 14 160495 14-20 x 14 Set Screw 59 160304 10-24 Stop Nut 15 160369 Pin 60 150456 Pressure Switch 16 134614 Swing Clamp 61 135744 Insulator - Fiber 17 134521 Adjusting Clamp 62 160381 6-32 x 1 Socket Screw 18 160488 Thumb Screw 63 160393 6 Flatwasher 19 134604 Bearing Bushing 64 160146 6 Lockwasher 20 134602 Connecting Rod 65 160309 6-32 Hex Nut 21 134601 Piston 66 160006 6-32 x 14 Screw 22 159295 O-Ring 67 160001 8-32 x 38 Screw 23 134603 Wrist Pin 68 160470 8 Lockwasher 24 136089 Cylinder 69 150481 Circuit Breaker 25 199011 Washer Valve 70 135727 Switch Bracket 26 159282 O-Ring 71 136311 Spacer - Cover Switch 27 113839 Pump Valve Housing 72 160028 Truss Head Screw
Assembly (Metal) 14-20 x 34 SST 28 160582 O-Ring 73 160141 Lockwasher 14 29 199020 Sleeve Rubber 74 160104 Hex Nut 14-20 30 135793 Retainer Clip 75 136312 Button Guard 31 135791 Adapter Hose Outlet 76 160020 Hex Hd Cap Screw 32 160581 O-Ring 14-20 x 1 SST 33 135790 Piston 77 113869 Switch Bracket 34 162308 Spring Soft Serve 78 136110 Button Cover Switch 35 135792 Drain Port 79 162314 Spring 36 160611 O-Ring 80 150456 Switch Pump Safety 37 135896 Hose 24 81 135004 Switch Cover 38 160738 Hose Clamp 82 160296 Screw RH 39 136288 Keeper 6-32 x 1-14 40 160554 O-Ring 83 160146 Lockwasher 6 41 160368 Wing Nut Int Tooth 42 130054 Diaphragm Housing 84 160393 Flatwasher 6 43 199019 Diaphragm 85 160309 Hex Nut 6-32 44 196074 Air Tube-Curved 86 114572 Hose Clamp 45 163433 Air Meter - 20 87 160048 14-20 x 12 TRHM
(other sizes available) 88 160308 6-32 x 516 RDHM 89 114581 Circuit Breaker Bracket
Not Shown 90 163109 Stop Pivot 112791 DPR Pressure Gauge
41
Mfg by H C DUKE amp SON INC 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
42
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Unit does not operate 1 Fuse blown at main disconshy 1 Check fuse size check for low nect voltage if not within 10 of
nameplate rating install transformer or call power company
2 Beater motor out on overload 2 Press starter reset button and check for low voltage Check producllemperalure and overrun
3 Disconnected or broken wife 3 Check wiring and wire connecshyin electrical circuit lions repair or replace lead
wires as necessary
4 Faulty selector switch 4 Replace selector switch
5 Out on high pressure 5 Check for low waler supply or dirty air conden ser
6 Out on low pressure 6 Check limit control and freon charge
Compressor does not operate f Troubte in compressor con- I Refer to Trouble-Shootingshyor operates improperly densing circuit Compressor I Condensing
Circuit
2 Faulty capacitor assembly 2 Replace capaCitor assembly (Single phase only)
3 Faulty contactor 3 Replace contaclOr or pOints
Compressor operates but 1 Loose con neclion at motor 1 Tighten connection beater motor does not starter coil (electrical box)
2 Open starter coil 2 Replace coil
3 Faulty capacitor assembly 3 Replace capaCitor assembly (Single phase only)
Dispensed product too hard 1 Cylinder themostat erratic 1 Adjust thermo slat or replace or set too low
2 Faulty time delay relay 2 Replace time delay relay
3 Solenoid valve leaking 3 Replace solenoid valve
4 Low suction pressure 4 See chart on page 15 for adshyjustments
Leaking of mix from rear housshy 1 Damaged bealer shalt seal 1 Replace shaft seal or O-ring ing discharge tube to drip tray inside seal assy
Mig by H C DUKE amp SON INC bull 2116 Eighlh Avenue Easl Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Mix leaking at dispensing head 1 Faulty 4 O-Ring
2 Head not properly installed
1 Replace 4 O-Ring
2 Install head properly
Mix sours in cabinet 1 Cabinet thermostat setting too high
2 Cabinet thermostat detective
3 Cabinet solenoid valve deshyfective
4 Cabinet switch defective
5 Beater motor out on overshyload (cab side)
1 Adjust thermostat
2 Replace thermostat
3 Replace coil or solenoid
4 Replace cabinet switch
S Reset overload for beater motor See pg 42 unit does not operate
Cabinet too COld
Machine runs continually and Product continues to get colder
Compressor operates only when dispensing
Unit runs conMuously Product does nol reach 180 F temperature
6 Door sWitch defectIVe
1 Cabinet thermostat setting too low
2 Defective thermostat
3 Cabinet solenoid stuck open
4 Cabinet expansion valve set too low
1 Plunger switch out of adjustshyment
2 Su ction pressure too low
3 Defective plunger switch
4 Plunger switch rod engaged
5 Faulty time delay relay
6 Starter or relay contacts stuck
7 Faulty thermostat or bulb not deep enough in well
6 Replace door SWitch
1 Adjust thermostat
2 Replace thermostat
3 Replace solenoid
4 Adjust cabinet expansion valve (See pg 15)
1 Adjust plunger switch
2 Adjust expansion valve and check freon charge
3 Replace plunger switch
4 Close plunger completely
5 Replace time delay relay
I 6 Check contacts i
7 Check bulb location or replace thermostat
1 Cylinder themostat setting 1 Adjust thermostat or replace too high or thermostat deshyfective
1 Trouble in compressor I condensing system
2 ExpanSion valve setiing is too high
3 Low on refrigeranl
1 See Trouble-Shooling-CompressorI Condensing circuit
2 Adjust expansion valve
3 Check and repair leak and recharge
1
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE SLUSHbull
43
44
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Dispensed product too soft (Product temperature above 21 0 F)
1 Automatic expansion yalve incorrectly set or erratic in operation
-2 Leak in refrigeration system
resulting in little or no refrigeration
1 Adjust or replace expanSion valve
2 Pump down system or remove refrigerant charge repair leak evacuate and recharge
3 Excessive oil in system 3 Drain compressor to proper oil leyel pump down and flush system
4 Thermostat set too high taulty
or 4 Adiust thermostat or replace
Product dispenses slOWly out dispensing head
1 Reverse rotation 1 Change rotation to clockshywise from front of freezer
2 Dispensing speed adjustshyment boll too far down
2 Adjust bolt upward
3 Pum p problem 3 See pump Trouble-Shooting chart
4 Product too cold 4 See dispensed product too hard pg42
TROUBLE-SHOOTING CHART COMPRESSORICONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor will not start -hums intermittently (cycling on oyerload)
1 Improperly wired
2 Low line Yoltage
3 Open starting capacitor (single phase only)
4 High discharge pressure
1 Check wiring against diagram
2 Ask power company to increase YOltage to not less than 10 below nameplate rating or install transformer Check for inadequate wire size
3 Replace starting capacitor
4 CheCK water regulating valve setting Check water or air condenser and clean if necessary Make sure disshycharge shut-oft valve is open
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor starts but remains 1 Low line voltage 1 Ask power company to in start windings increase voltage to not less (Single phase only) than 10 below nameplate
rating or install transrormer
2 Improperly wired 2 Check wiring against drawing Check wire size
3 Running capacitor shorted 3 Check by disconnecting running capacitor
4 Starting capacitor weak 4 Check capacitor replace
5 High disCharge pressure 5 Check water regulating valve check water or air condenser and clean il necessary Check discharge shut-off valve
Starter burned out 1 Low line voltage 1 Ask power company to inshycrease voltage to not less than 10 below nameplate rating or install transformer
2 Excessive line voltage 2 Ask power company to reduce voltage to maximum of 10 over nameplate rating
Starting capacitors burn out 1 Voltage 100 low 1 Ask power company to (Single phase only) increase voltage to not less
than 10 below nameplate rating or install translonmer
2 Improper capacitor 2 Replace capacitor with properly rated capacitor as listed in manual
Running capacitors burn out 1 Excessive line voltage 1 Ask power company to reshy(Single phase only) duce line voltage to not more
than 10 above rating 01 motor
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
45
46
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Unit operates long or continuously
1 Shortage of gas
2 Dirty condenser
3 Moisture in system
4 Compressor failing
1 Repair leak and recharge
2 Clean condenser
3 Evacuate and recharge system
4 Check compressor lor proper pressures If inadequate replace compressor
Head pressure too high 1 Refrigerant overcharge
2 Air in system
3 Dirty condenser (air cooled)
4 Unit location too warm (air cooled)
5 Restricted water cooled condenser
6 Water turned off or defective
1 Purge system
2 Purge system evacuate and recharge
3 Clean condenser
4 Relocate unIt away from restriction Place nothing against back or on top of unit
5 Clean or replace condenser
6 Turn on water Or replace water regulating valve regulating valve
Head pressure too low 1 Shortage 01 refrigerant 1 Repair leak and recharge
2 Water regulating valve open 2 Adjust regulating valve too wide
Water 1I0wing through water 1 Water regulating valve 1 Replace water regulating valve waste line when unit is not in operation
defective
Noisy compressor 1 Tubing raUle 1 Bend tubes away from contact
NOTE Refer to warranty card prior to compressor replacement
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING DPR PUMP
TROUBLE PROBABLE CAUSE REMEDY
Pump will not run 1 Pump cover removed 1 Install pump cover
2 Pressure switch actuating 2 Free bulton-check spring and
bulton stuck open (in) pressure switch alignment
3 Pressure switch burned out 3 Replace pressure switch
4 Starting switch in motor bad 4 Install new starting switch
5 Motor burned out 5 Replace motor
6 Circuit breaker kicked out 6 Allow to re- set Replace it or faulty circuit breaker will not
automatically re-set
Motor runs-cam drive plate 1 Loose cam drive plate 1 Tighten set screw in cam will not turn drive plate Check woodruff key
2 Gear stripped 2 Replace gear
Pump will not shut off Mix 1 Pressure swilch actuating 1 Free button-check pressure shoots out pressure relief bulton stuck closed (out) switch alignment
2 Pressure switch stuck in 2 Replace pressure switch closed position
3 Pressure switch assy out 3 Using pressure gauge adjust of adjustment pressure
4 Dirty or plugged diaphragm 4 Disassemble and clean housing (Ref 42) housing
5 Defective O-Ring on 5 Replace O-Ring pressure relief piston
Pump will not prime 1 Insufficient supply of mix 1 Replenish mix supply
2 Piston O-ring defective-no 2 Replace piston O-Ring and suction lubricate
3 Washer valve not sealing 3 Replace washer valve DO NOT LUBRICATE
Pump primes No pressure in 1 Sleeve (Rei 29) not sealing 1 Replace sleeve DO NOT cylinder properly LUBRICATE
2 Loose hose connection on 2 Install or tighten hose clamp pump valve housing (Ref 27)
Mix shoots out Of air intake line 1 Washer valve (Ref 25) 1 Replace washer valve-DO not sealing properly NOT LUBRICATE
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOfT SERVE bull SHAKE bull SLUSH
47
48
TROUBLE-SHOOTING DPR PUMP
Too much air overrun too high-popping problems
Product dispenses slowly out of disPenSing head
1 Air meter too large (Ref 45)
2 Air leak befween mix conshytainer and mix inlet
3 Air line hose crackedshysucking air (Ref 44)
4 Pump pressure too lowshycylinder not full
1 Pump pressure too low
2 PrOduct too cold
3 Low overrun
Diaphragm housing leaking mix 1 Diaphragm housing loose
2 Diaphragm defective
Piston drive assy noisy 1 Bushing bearing worn
2 Defective gear in gear motor
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SIfAKE bull SLUSH
REMEDY
1 Replace washer valve-DO NOT LUBRICATE
2 Install clamp on hose
1 Replace O-Ring and LUBRIshyCATE
1 Clean or replace air meter
2 Replace tube
1 Install smaller air meier
2 Repair as needed
3 Replace air line hose
4 Using pressure gauge adjust pressure switch
1 Using pressure gauge adjust pump pressure
2 Check product temperatureshyshould be about 18 F
3 Check meter-if plugged-clean
1 Tighten wing nuls (Ref 41)
2 Replace diaphragm (Ref 43)
1 Replace bushing bearing (Ref 19)
2 Replace gear
TROUBLE
Mix inlet hose loses prime
Mix on top of piston
PROBABLE CAUSE
1 Washer valve (Ref 25) not sealing properly
2 Mix inlet hose loose
1 Piston O-Ring leaking (Ref 22)
No Air (Overrun) 11 Ai r meter plugged (Ref I 45)
2 Curved air tube pinched
--
DPR PUMP aI
PART NO 199019(i) PART NO 199020 reg DIAPHRAGM RUBBER SLEEVE
PART NO159295 PART NO 159282reg O-RING O-RING0
PART NO 160581reg O-RING
o PART NO PART NO
PART NO199011() 160611(8) 160582 WASHER VALVE O-RING O-RING
PISTON
cJ
DIAPHRAGM HOUSING
CYLINDER
VALVE HOUSIN6 ASSEMBLY
PUUPOUTLET
DRAIN PORT
I PHNO309-755-4553 O-RING CHART HCDUKEampSONINC I
1 I84Z08 SOFT SERVE DISPENSING HEADS I
o PART NO 1605620
PAR~159--1b
PART NO PART NO 1605841 59295()
I PHNO 309-755-4553 O-R ING CHART HCDUKEampSONINC I
- Cover
- Table of Contents
- Safety
- Uncrating amp Inspection13
- Explanation of Electrical Controls
- Operation of Machine
- General Information
- Maintenance amp Adjustment
- Parts Breakdowns
- Trouble-Shooting Charts
- O-ring Charts
-
10
DPR PUMP OPERATION AND MAINTENANCE A CAUTION ALL CONTROL SWITCHES MUST BE IN THE OFF POSITION AND THE MAIN POWER SUPPLY DISCONNECTED FOR DISASSEMBLY AND REASSEMBLY
DISASSEMBLY
Step 1 - Reference DPR pump breakdown pages 40 and 41 for assistance in identificashytion of pump parts and their associated reference numbers If the pump has been in operation be sure that it is depressurized before proceeding to step 2
Step 2 - Remove attached mix hoses and pump cover (Ref 46)
Step 3 - loosen the thumb screw (Ref 18) and swing away the clamp (Ref 16) Carefully remove the entire pump assembly from the pump support (Ref 2)
Step 4 - Remove wing nuts diaphragm housing and diaphragm (Ref 41 42 and 43)
Step 5 - Further disassemble the pump by removing the piston assembly including the piston connecting rod and wrist pin (Ref 20 21 and 23) Separate the wrist pin and connecting rod from the piston Remove the curved air tube air meter outlet hose adapter and cylinder (Ref 24 31 44 and 45) from the valve housing assembly (Ref 27)
Step 6 - Grasp the outlet hose adapter asembly (Ref 31) and remove the keeper (Ref 39) while pressing inward on the drain port (Ref 35) Carefully lift and remove retainer clip (Ref 30) Caution must be exercised when removing the retainer clip as the relief mechanism parts (Ref 33 34 and 35) are spring loaded Remove the piston spring and drain port
Step 7 - Remove all a-rings rubber sleeve (Ref 29) and washer valve (Ref 25) All parts disassembled in steps 2 through 7 should be washed thoroughly in a solution of mild detergent and water not exceeding 120deg F Rinse all parts
NOTE All O-rings must be removed in order to properly wash parts
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Mohne illinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
LUBRICATION AND REASSEMBLY
Reassemble by reversing the steps on page 10 and lubricate as follows
When replacing the flat rubber washer (Ref 25) DO NOT LUBRICATE Important -This rubber washer acts as the air and mix check valve and must lie flat against the top of the pump valve housing Install it over the mushroom cap and move it around to make sure that it is sealed Ins~n the sleeve (Ref 29) Like the washer valve this should not be lubricated and fits on the pump valve housing with the tapper to the bottom
All the O-rings on the pump should be lubricated lightly The O-ring on the piston (Ref 21) should be lubricated liberally as this is the major wearing O-ring and must provide a good seal
Install the O-ring and spring on the piston (Ref 33) Lightly lubricate the O-ring (only enough to make it shiny) Install the piston with the O-ring end in first Lubricate the O-ring on the drain port and install it in the adapter Push in on the drain port and slide the clamp over the top to lock it in place Place the keeper (Ref 39) over the exposed end of the drain port and install the hose and clamp on the drain port Install the pressure switch diaphragm in the diaphragm housing
The pressure switch diaphragm (Ref 43) requires no lubrication
Install the diaphragm housing and diaphragm on the two studs and tighten wing nuts hand tight Install the pump assembly on the bracket-drive assembly in the refrigerated cabinet The shoulder of the white bushing (Ref 19) faces the drive cam (Ref 13) when slid into place properly Be sure to insert the mix output body (Ref 31) over the diaphragm housing (Ref 42) Return swing and adjusting clamp to closed position and tighten thumb screw Replace mix hoses and tighten all hose clamps
NOTE The pump will not operate without the cover (Ref 46) in place
WARNING
MAKE SURE ALL HOSE CONNECTIONS AND THE SWING A CLAMP ARE TIGHT BEFORE PRESSURIZING MACHINE THIS SYSTEM PRODUCES 30-32 PSI DURING NORMAL OPERATION
11
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH PrIntId USA
12
SANITIZING INSTRUCTIONS
The washing and sanitizing instructions explained in this manual are required to maintain a clean sanitary machine Your Soft Serve machine should be disassembled cleaned and sanitized to insure the best possible product and machine operation
Prepare a solution of sanitizing water (for each barrel) in a 2-3 gallon container (Solution should be 200 PPM chlorine using Diversol or equivalent) Place the container in the refrigerated cabinet and insert the mix inlet hoSe or stainless steel mix tube in the sanitizer Turn the pump switch ON (located at front of machine) and allow the pump to build up pressure and shut off automatically Turn the selector switch to the CLEAN OUT position and allow the beater to run for 5 minutes This insures the sanitizing solution touching all of the internal parts Placing a container under the dispensing head release the solution from the cylinder by depressing the dispensing handle Do this slowly as the cylinder is under 30 pounds pressure HINT Remove serrated nozzle (Ref 2) for this operation Sanitize nozzle and install when mix is ready to be dispensed Leave the dispensing handle down until the pump has forced all or most all of the solution through the machine When completed turn the selector switch and pump switch OFF You are now ready to start your freezer
You are working with a pressurized machine Always check for possible leaks when sanitizing your machine A leak around the head is obvious and usually calls for the replacement of the dispensing head O-rings A leak in the shaft seal will flow out of the drain tube just below the dispensing head This usually requires the replacement of the shaft seal or shaft seal O-ring Any leakage in the pump would require that the O-ring be replaced at the point of leakage
NOTE Sanitizing is always done prior to starting the machine Never sanitize the day belore and let the machine sit overnight
START UP INSTRUCTIONS
After sanitizing immediately fitl the container with mix Place the mix inlet hose or stainless steel mix tube in the container of mix (If you are using a plastic bag container supshyplied by the dairy it is recommended that you notch the plastic hose or use a perforated mix can tube so that the bag cannot be drawn into the mix inlet restricting the flow of mix If not careful a hole can be made in the bag) Sanitizer will remain in the pump mix hose and cylinder Turn the pump switch on starting the pump and depress the dispensing handle opening the dispensing plunger Leave the dispensing plunger open until you receive
pure mix at the nozzle The mix will push the remaining sanitizer out of the machine if the plunger is left open Close the plunger after removing all remaining sanitizer (See page 20)
After the cylinder is pressurized and the pump has shut off place the selector switch in the AUTOMATIC position At this pOint make sure the cabinet switch is at the ON position and the thermostat switch is at the DAY position Allow the machine to cycle and freeze down Normally several refrigeration cycles will be needed before a frozen product can be dispensed
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
It is impossible to start the freezer and not have excess air in the cylinder Since you have air in the cylinder and the pump is also adding air to the mix on first start up you will have air pockets in the cylinder These pockets can be eliminated if after two or three cycles you will turn the selector switch to the OFF position Pump switch must be at ON position With the selector switch off slowly open the dispensing plunger and bleed off the excess air until liquid mix comes out the dispensing head Close dispensing handle allow the cylinder to fill and turn selector switch to AUTOMATIC At least 30 minutes cycling time should be allowed to insure a ready produ~l
CLEANING PROCEDURE - DRAINING MACHINE
Place selector switch on the front of the machine to CLEAN OUT and let the beater run for about five minutes This will allow the product in the cylinder to soften up Place a clean sanitized container under the dispensing nozzle and very slowly draw off the semishyfrozen cream until liquid mix appears at the nozzle Remove the stainless steel mix tube or mix hose from the mix container Leave the dispensing plunger open until all the mix has run out of the cylinder and place the container in the cooler for storage Place the mix inlet hose in a container of cold water allow the cylinder to pressurize and flush the machine with the selector switch on CLEAN OUT Follow with a container of warm water until machine is rinsed clean Place the selector switch and pump to OFF Refer to disassembly instructions (Ref page 9)
WARNING
YOUR SOFT SERVE MACHINE OPERATES ON 30-32 POUNDS PRESmiddot A SURE NEVER DISMANTLE ANY PART OF THE MACHINE UNLESS THE MACHINE HAS BEEN DEPRESSURIZED THE SELECTOR
SWITCH IS IN THE OFF POSITION AND THE MAIN POWER SUPPLY HAS BEEN DISCONNECTED DEPRESSURIZE THE CYLINDER BY OPENING THE SPIGOT WITH THE PUMP SWITCH IN THE OFF POSITION
CLEANING MIX HOSE
The CAB models use the DPR mix pump You must disconnect the mix hoses and clean them thoroughly USing a long handle brush and a suitable cleanersanitizer you must brush the interior of the mix hose to insure there is no build up of product on the walls of the hose Water temperature for this cleaning process should be 1800 F to meet some health codes After reassembly pump sanitizer through the hoses
Mfg by H C DUKE amp SON INC 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
13
14
GENERAL INFORMATION OVERRUN ADJUSTMENT
The overrun on your CAB machine equipped with a DPR pump is regulated by the air meter (Item 45-pump parts breakdown) You are supplied with three air metering plugs each containing a different size orifice The smaller the hole the lower the overrun The larger the hole the higher the overrun The orifice or hole in this air meter must be open at all times It is the only source of air into the freezing cylinder Check this daily
The mix will be a determining factor as to the amount of overrun you will be able to achieve Some mixes will accept more air than others thus regulating the size of air meter you can use Test to see which air meter will give you the best overrun and the best tasting shake Run each air meter for one day until you make the determination You may have a slightly higher overrun when you first start up the machine When the machine has run long enough to dispense at least one full cylinder of product you will have the overrun that the machine wil hold the remainder of the day
ADJUSTING PUMP PRESSURE
Only to be performed by a qualified service technician
A WARNING
DISCONNECT MAIN POWER SUPPLY BEFORE REMOVING PANELS
NOTE The pump will not operate without the cover in place
The DPR Pump is controlled by pressure in the mix line acting on the diaphragm (Ref 43) As the pump fills the freezer cylinder with mix pressure builds causing the diaphragm to expand As the diaphragm expands it contacts the button (Ref 51) which in turn depresses the pump pressure switch (Ref 60) The pressure switch button moves inward until the switch is opened turning off the pump motor When product is drawn from the freezer the diaphragm closes the pump pressure switch allowing the pump motor to restart Pump pressure will check the same with air mix or water We suggest the pressure be checked with air pressure only
Step 1 - Remove the rear panel from machine and the pump electrical box cover (Ref 6)
Step 2 - Locate the pressure adjusting nut (Ref 59) Turn the adjusting nut clockwise to increase pressure or counterclockwise to decrease pressure Usually one half turn of the adjusting nut will raise or lower the pressure of the model DPR pump two (2) PSIG
Step 3 - Install a quality pressure gauge in the mix output line Turn main power supply and pump switch to ON pOSition Caution Electrical power present through entire machine Allow the pump to pressurize until it shuts off automatically Observe the gauge pressure reading and disconnect main power supply Repeat the adjustment steps 1 through 3 until the proper pressure is obtained (30 to 32 PSIG) Reinstall the electrical box cover and rear panel
NOTE Pressure tine must be at least 6 fI long in order to obtain an accurate reading
A Pressure Gauge PIN 112791 may be purchased from your local distributor
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
PRESSURE RELIEF ASSEMBLY
The model DPR Pump incorporates a self contained safety pressure relief system The parts included in this assembly are (Ref 30 through 39) Any discharge of mix through the hose (Ref 37) is an indication of excessive pump pressure For corrective action refer to the trouble shooting section of this manual
REFRIGERATION SETTINGS
A WARNING
DISCONNECT MAIN POWER SUPPLY BEFORE REMOVING PANELS
The CAB Soft Serve machine contains two types of temperature control devices the expansion valve and the thermostat (explained in Thermostat Section) The expansion valve meters the flow of refrigerant to the cylinder and must be set correctly to give you maximum production
To locate the expansion valve remove the side panel On the single head CAB machines remove the right side panel The double head machines will have an expansion valve behind both right and left side panels
The expansion valve should only be adjusted by a refrigeration technician with refrigeration test gauges connected to the compressor Adjustments to the valve are shown in the following chart
REFRIGERATION SETTINGS MODEL TYPE OF COOUNG WATER AIR 917CAB 927CAB 957iAa I
Cyl Suction Pressure Rmiddot502 15middot17 (PSIG) 15-17 (PSIG)
9711CAS Cyl Suction Pressure R-502 15middot17 (PSIG) 15middot17 (PSIG)
ALL SOFT SERVE
CABS
Cab Suction Pressure Rmiddot502 Head Pressure Thermostat Differential
8middot10 (PSIG) 230-240 (PSIG)
17degmiddot22deg 7deg~8c
8-10 (PSIG) 230middot315 (PSIG)
17deg_22deg 7c -8deg
NOTE To correctly set the cylinder expansion valve the cabinet thermostat switch An must be in the OFF position (Full counterclockwise) with the compressor running
NOTE To correctly set the cabinet expansion valve the selector switch must be in the OFF position and the cabinet switch in the ON position (With the compressor running)
A refrigeration test gauge must be used when adjusting the suction pressure To reduce the suction pressure turn the adjustment screw on the expansion valve counterclockwise Do not turn more than 14 turn at a time Let the unit operate a sufficient length of time - at least two minutes - to properly read on the gauge the adjustment made
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline illinOIS 61244
SUPERIOR QUAUTY FREEZERS bull SOFt SERVE bull SHAKE bull SLUSH
15
16
THERMOSTATS
A WARNING
DISCONNECT MAIN POWER SUPPLY BEFORE REMOVING PANELS
Thermostat Au is the cabinet refrigeration thermostat The cabinet thermostat operates off of both the day and night switch operation to maintain 44 0 F or lower in the mix storage cabinet This thermostat can be adjusted by rotating the adjustment knob To set this thermostat colder turn the adjustment knob clockwise
CYLINDER THERMOSTAT
The cylinder thermostat is located behind the right side panel (on single head CABs) faCing the front of the machine On the double head CABs like the expansion valve a cylinder thermostat is located behind both the right and left side panels This control has two settings The first is the differential which should be set on 7-8deg F The other side of the control marked HIGH EVENT should be set between 17-220 F
The purpose of the cylinder thermostat is to maintain an 18deg F product during idle periods If the thermostat is set too cold and product is not drawn out of the machine a freeze up condition will result DO NOT run the product below 17deg F
NOTE The settings on the thermostat are ONLY to be used as a guide
For a correct adjustment a thermometer must be used to check the actual product temperature Each thermostat should be set in the field for the product being used Most of the time a temperature setting of between 18deg and 19deg F will maintain a satisfactory product Once the thermostat is set for the mix used it should require no further adjustment
MIg by H C DUKE amp SON INC 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH P~IIIIUSA
THERMOSTAT_________ Turn knob clockwise to make product colder
Differential adjustment
copy
COLDER ~ reg
copy5
2 6Igt
1 7 OFF
copy
THIS ASSEMBLY USED ON LEFT SIDE OF UNIT
RIGHT SIDE USES THIS ASSEMBLY WIO THERMOSTAT A (CAB THERMOSTAT)
MIg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
17
18
MAINTENANCE AND ADJUSTMENT
ONLY TO BE PERFORMED BY A QUALIFIED SERVICE TECHNICIAN
WARNING
MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFF POSITION AND THAT THE MAIN POWER SUPPLY IS DISCONNECTED BEFORE REMOVING PANELS
LUBRICATION INSTRUCTIONS
FAN MOTOR (Air Condenser) Lubricate annually with SAE 10 motor oil in the oil cups
CAUTION DO NOT OVER-LUBRICATE OVER-LUBRICATION CAN DAMAGE MOTOR
GEAR REDUCER The gear reducers are heavy duty worm-geared units manufactured to HC Duke specifications II traces 01 oil are found in the immediate area around the reducer repair the leak (usually an oil seal) and check the oil level When adding oil use only synthetic gear lube in the reducer
NOTE This is a special oil and will not mix with a petroleum base oil Contact your distributor when this oil is needed This oil should be changed at least once a year
OIL LEVEL PLUG
PROPER OIL LEVEL
OIL DRAIN USE SPECIAl PLUG OIL ONLY
USE SPECIAL LOILON=LY-- I
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH ~1U8A
MAINTENANCE AND ADJUSTMENT ONLY TO BE PERFORMED BY A QUALIFIED SERVICE TECHNICIAN
WARNING
MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFFA POSITION AND THAT THE MAIN POWER SUPPLY IS DISCONNECTED BEFORE REMOVING PANELS shy
BEATER MOTOR Beater motors are either single or three phase Capacitor starting is used on the single phase units The beater motor should be inspected and cleaned
WATER COOLED CONDENSER Depending on the condition of your water the condenser on your CAB machine may require cleaning from time to time Usually a restricted flow of water resulting in a high head pressure indicates a dirty condenser The condenser should be flushed out with an acid solution by a qualified service technician
AIR COOLED CONDENSERS At least once a month the face area of the condenser should be inspected for accumulation of dirt and dust Surface dust and dirt can usually be removed with a stiff brush andor vacuum cleaner After brushing hold a light between the fan blades and look through the condenser from the opposite side This procedure will locate those areas where accumulated dirt has lodged between the condenser fins To clean these areas obtain a small tank of nitrogen or C02 with a needle control valve or pressure regulator with a small hose attached and proceed as follows
(1) Place a damp towel or cloth over the face area of the condenser
(2) Open the control valve or regulator on the tank releasing pressure to the coil from the back side cleaning the condenser
(3) Check the condenser periodically with the light and continue the treatment until the fins are clean
For maximum performance replace all worn O-Rings Seals Blades etc
CAUTION USE ORIGINAL OR AUTHORIZED REPLACEMENT PARTS ONLY WITH THIS FREEZER
Mig by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline illinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
19
20
PULLEY ALIGNMENT AND BELT TENSION ONLY TO BE PERFORMED BY A QUALIFIED SERVICE TECHNICIAN
WARNING
A MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFF POSITION AND THAT THE MAIN POWER SUPPLY IS DISCONNECTED
Remove the side panels to expose the pulleys and belts
Check the alignment of the beater motor pulley and gear reducer pulley by placing a straight edge across the faces of the two pulleys If the pulleys are not aligned adjust as necessary until proper alignment is obtained
Depress the belts with a finger at a point midway between the two pulleys When properly adjusted the belts should depress 12 from its normal position with approximately 5 pounds of pressure If the belts are too tight or too loose adjust as necessary until proper belt deflection is obtained Loosen four (4) bolts which hold the motor mounting plate to the frame With these loose adjust tension bolt in or out as required to obtain proper belt tension Retighten bolts
BELTS
Periodically inspect the belts If they are worn excessively replace both belts For best results it is advisable to replace both belts as they are manufactured in matched sets
SCRAPER BLADES
NOTE Be sure to purge all of the sanitizer from the mix system before operating the freezer (see page 12) Failure to completely remove sanitizer or water trom the freezing cylinder before placing the machine in the Automatic position may cause blade breakage and damage the freezer
o o
NEW BlADE WORN BLADE
Replace blades if worn 316 or more
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
END PLAY FOR BEATER DRIVE COUPLING
It is very important that the drive coupling located on the gear reducer be set properly Referring to the Drive Coupling Illustration the following procedure should be followed in setting the end play
WARNING
MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFF POSITION AND THAT THE ELECTRICAL POWER TO THE MACHINE IS DISCONNECTED SO THAT THE UNIT WILL NOT OPERATE
------
DRIVE COUPLING ILLUSTRATION
REF DESCRIPTION REF DESCRIPTION 1 Gear Reducer 6 Reducer Mounting Plate 2 Beater Shaft 7 Set Screws 3 Shaft Seal 8 Bolt Gear Reducer 4 Drive Coupling 9 Bolt Reducer Mounting Plate 5 Spacer 10 Key
11 Output Shaft
Improper drive coupling spacing will damage the beater shaft dispensing head and drive coupling When checking end play settings or replacing a coupling proceed as follows
REMOVING COUPLING
WARNING
DISCONNECT MAIN POWER SUPPLY
Mig by H C DUKE amp SON INC bull 2116 Eighth Allenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SO SERVE bull SHAKE bull SLUSH
21
22
(1) Remove Beater Shaft (Ref 2)
(2) Remove both drive belts (not shown)
(3) Remove gear reducer bolts (Ref 8) Six (6) bolts are located around the face of the reducer
NOTE Remove the top bolt last holding the bottom of the reducer as you do so
(4) Remove the gear reducer (Ref 1) and place-on table or bench
(5) Replace two (2) bolts (Ref 8) one (1) at the top and one (1) at the bottom so that the reducer cover will not come off while the coupling is changed
(6) Loosen the four (4) set screws (Ref 7) and remove the drive coupling (Ref 4) Should the coupling be stuck tight to the ouput shaft lightly tap the coupling from the back with a hammer and bar Sometimes due to age this coupling will stick so tight it will have to be removed with a pulley removing tool or a wheel puller
(7) Remove the key (Ref 10)
INSTALLING THE NEW COUPLING
(1) Clean gear reducer output shaft (Ref 11) with fine emery cloth and slide the new drive coupling on the reducer shaft The coupling should slide on the shaft all the way without the key If the coupling doesnt slide completely on check both coupling and reducer shaft for burrs When a smooth sliding fit is achieved remove coupling and proceed with final assembly
(2) Place key (Ref 10) in keyway slot on the reducer output shaft Keep the key flush with the front end of the output shaft (Ref 11)
(3) Slide the coupling (Ref 4) on the output shaft until it bottoms out on the shaft Leave the four (4) set screws loose as the coupling will have to be adjusted
(4) Remove the two (2) bolts added in preceding Step 5
(5) Place one (1) gear reducer bolt (Ref 8) in the top hole of the cylinder mounting plate
(6) Insert gear reducer into cylinder mounting plate and start top bolt (Ref 8) Do nol tighten completely Now insert the other bolts one at a time When all bolts are in tighten each boll
NOTE Due to very close tolerance between the gear reducer and cylinder mounting plate no alignment is required when Installing the reducer When the reducer bolts are tightened the reducer will seH-align with the cylinder
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
(7) Insert the beater shaft (Ref 2) with the shaft seal and blades into the cylinder and engage beater shaft in the drive coupling Place bushing on front of beater shaft
(8) Tape a dime (10 cents) to the back of the dispensing head in the very center at the point where the beater shaft touches the dispensing head The dime is used to acquire the proper end play setting on the drive coupling which is approximately 332
(9) Place the dispensing head into the cylinder and tighten with the hand knobs Important make sure hand knobs are tight and head is against the end of the cylinder tube
(10) Slide the drive coupling (Ref 4) forward until it is tight against the beater shaft and lock into place the four (4) set screws (Ref n
(11) Remove the dime from the back of the dispensing head
(12) Replace the drive belts
(13) Turn on electrical power
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
23
PANEL BREAKDOWN - 917CAB
~--~
3
REF PART No 1A 114544 1B 112991 2A 136075 2B 136102
3A 137027 3A 137028
3A 136105 3B 136103
3B 134817 4 134818
4 136101 5A 114780
5A 113570 5B 112967
6 112960 7 133291
24 A 917CAB only
I
dJ
DESCRIPTION Frame ssmiddoty Frame ASsmiddoty Lower Side Panel Lower Side Panel LH Side Panel RH Side Panel Upper Side Panel Upper Side Panel Upper Side Panel Rear Panel Rear Panel Top Cover ASsmiddoty Top Cover ASsmiddoty Top Cover ASsmiddoty Filler Panel ASsmiddoty Top Filler Strip
B bull 44 CAB only
~
[At 16 lt0
REF 8
9 10 11 12 12A 13
14 15 16 16A
Air Cooled only
PART No DESCRIPTION 132687 Dispense Panel 134247-01 Dispense Panel Cab-W
Drip Tray (See Pg 35) 114260-01 Door Assmiddoty wIHinges 132444-01 Left Hand Filler Strip 162045 Upper Hinge 162052 Spring LH 162046 Lower Hinge 160026 Screw 160020 Bolt 160139 Washer 110205 Syrup Jar Enclosure 160563-01 Door Gasket 01-Groove) 159174 Drip Tray Button 160293 Clip for Button
Water Cooled only
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
~~
1 ~~o ~o
)
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REF PART No DESCRIPTION REF PART No DESCRIPTION 1 114538 Frame Assy 10 162045 bull Upper Hinge 2 136289 Side Panel LH lOA 162052 Spring LH 3 136313 Rear Panel 11 162046 Lower Hinge 4 114006 Top Panel AC llA 160026 Screw 4A 114428 Top Panel WC l1B 160020 Bolt 4B 114157 Top Panel AC Remote l1C 160139 Washer 5 113983 Front Panel Assy 927CAB 12 136216 Side Panel RH 5A 113985 Front Panel Assy 957cAB 13 160563 Door Gasket (V-Groove) 6 130021 Rear Corner Channel RH 14 159174 Drip Tray Button 6A 135254 Rear Corner Channel LH 14A 160293 Clip for Button 7 137228 Dispensing Panel 162108 Stop Pin (Screw In) 8 Drip Tray (See Pg 35) 136199 Door Pull 9 114260 Door Assy wHinges
25
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
SOFT SERVE CAB ELECTRICAL BOX
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 Contactor (Order By Freezer 5 150463 Selector Switch
Serial Number) 6 159235 Toggle Switch (Pump) 2 Overload (Order By Freezer 7 150456 Spigot Switch
Serial Number) 7A 136124 Button - Spigot Switch 2A Heater Coil (Order By Freezer 7B 162302 Spring - Spigot Switch
Serial Number) 8 150553 Pilot Light - Amber 3 Starter (Order By Freezer 9 150552 Pilot Light - Red
Serial Number) 10 161026 Thermometer (Not Shown) 4 150208 Timer
26
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Pointed u
- - --- -
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prifllcl If USA
In-
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SOFT-SERVE - SINGLE HEAD CAB
REF PART No 1 151351
2 3 4 5 6 151044
151052 7
8 155039 9 155400 10 155117
11 151084
12A 159021 13 155401 13A 155423 14 155403 15 155422
16 154976 16 154975 17 159203 18 155051 19 112901
155410 20 155044
151348
DESCRIPTION Capacitor Relay Assembly (single phase)
150247 Start Capacitor
150249 Run Capacitor 150245 Relay Motor Capacitors (order by freezer serial no) Gear Reducer (see gear reducer breakdown page 36) Driven Pulley (order by freezer serial no) Belt (order by freezer serial no) Motor 1-phase 230 volt Motor 3-phase 208230 volt Driver Pulley (order by freezer serial no)
Water Condenser Automatic Expansion Valve (Cylinder) Air Condenser
Condenser Fan Motor
Condenser Fan Blade High Pressure Cut-Out shyHigh Pressure Cut-Out shyLow Pressure Cut-Out Solenoid Valve
Compressor 230160
AC WC
Compressor 208-230360 Sight Glass Drier (38) Receiver Tank Assembly Water Valve (not shown) Service Valve Compressor Mounting Kit
Note I) lt0 For All 50-Cycle Freezers Order By Freezer Serial Number
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Printad I usA
30
c W -I o o o a w ~ 3
III
~ W -I III J o C
w gta w en u o en
SOFT-SERVE - DOUBLE CAB - WATER COOLED REF PART No DESCRIPTION 1 155026 Water Condenser (B-side) 1 A 155039 Water Condenser (A-side) 2 159203 Sight Glass 3 155051 Drier (38) 4 155400 Automatic Expansion Valve (Cylinder) 5 Gear Reducer (see gear reducer breakdown page 36) 6 155410 Water Valve 7 155423 High Pressure Cut-Out 8 155403 Low Pressure Cut-Out 9 154976 Compressor 230160
151351 Capacitor Relay Assembly (Single Phase) 150247 Start Capacitor 150249 Run Capacitor 150245 Relay
9A 154975 Compressor 208-230360~-11 NOT USED ON THIS MODEL 12 155442 Low Temp Control 13 Driven Pulley (order by freezer serial no) 14 Belt (order by freezer serial no) 15 Driver Pulley (order by freezer serial no) 16 155422 Solenoid Valve 17 151044 Motor 1 phase 230 volt 17A 151052 Motor 3 phase 208230 volt 18 Motor Capacitors single phase only (order by freezer serial no)
Note For All 50-Cycle Freezers Order By Freezer Serial Number
cgt
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH _InU5A
32
c W J o o o -a oCt
aI oCt o W I m ) o c w gta w Ch t--LL o Ch
SOFTmiddotSERVE bull DOUBLE CAB - AIR COOLED REF PART No 1 155120 2 159020 3 151080 4 155400 5 6 159203 7 155051 8 112901 9 151044 9A 151052 10 11 12 14 154976
14A 154975 15 155401 16 155403 17 155443 18 155442 19
21 155422
DESCRIPTION Condenser Fan Blade Fan Motor Automatic Expansion Valve (Cylinder) Reducer (see gear reducer breakdown page 36) Sight Glass Drier Receiver Assembly Motor 1-Phase 230 Volt Motor 3-Phase 208230 Volt Driven Pulley (order by freezer serial no) Belt (ordr by freezer serial no) Driver Pulley (order by freezer serial no) Compressor 230160 151351 Capacitor Relay Assembly (Single Phase)
150247 Start Capacitor 150249 Run Capacitor 150245 Relay
Compressor 208-230360 High Pressure Cut-Out Low Pressure Cut-Out Cabinet Thermostat Low Temp Thermostat NOT USED ON THIS MODEL Motor Capacitors single phase only (order by freezer serial no) Solenoid Valve
Note For All 50-Cycle Freezers Order By Freezer Serial Number
Vl Vl
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prinled In USA
CAB PARTS BREAKDOWN
REF PART No DESCRIPTION PART No DESCRIPTION 1 155109 Cabinet Coil 136297 Condensate Pan (Not Shown) 1A 155113 Motor Cabinet Fan 196092 Mix Tank 7-12 Gal 1B 155099 Fan Blade Cabinet Coil 113997 Front Lid Mix Container
7-12 Gal 136248-01 Rear Lid Mix Cont 7-12 Gal
10 155416 CAB Automatic Expansion 130092 Mix Tube Valve 196028 Mix Tank 10 Gal
137119 Probe 11 -1 4 shy1E 155114 Fan Grill amp Bracket 7-12 Gal Container 1F 155116 Knob 137119-01 Probe 10-34 shy2 113898 DPR Pump Less Motor 7-12 amp 10
(see pump breakdown Gal Container pg 38) 137119-02 Probe 10-14 shy
3 196061 Mix Hose (sold by the foot) 10 Gal Container 4 150416 Door Switch 137120 Base Probe Mtg 4A 114630 Actuator Door Switch 160500 O-Ring
(Not Shown) 114572 Hose Clamp (Not Shown) 5 150527 Retractable Cordset 34
MIg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prlmd UsA
MERCHANDISING ASSY
PART No 115108 115107
PART No
196107-01 196108-01 114610 114608 115132 199030
PART No 162105 162106 112978 158004 158021 158022 158078 158000 158056 158000A 158014 158014A 161000 158049
DESCRIPTION 2S Merchandiser-927-957-978CAB 24 Merchandiser-917CAB
DRIP TRAY
DESCRIPTION
24 Drip Tray-917CAB 26- Drip Tray-927-957-978CAB 24 Tray Insert-917CAD 26 Tray Insert-978CAB-927CAB 26 Tray Insert-957CAB Rubber Bumper (only)
DESCRIPTION Caster With Brake Caster Without Brake Leg-6 4 Cylinder Brush Mix Hose Brush 58 Dia w6 Ft Handle 14 Pump Brush Drain Tube Brush Petrol Gel (12 tube carton) Petrol Gel (6 tube carton) Pe1rol Gel (per tube) Stera Sheen (per case) Stera Sheen (per jar) Pocket Thermometer 1 Dial Z32 Overrun Scale
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SNAKE bull SLUSH
35
36
GEAR REDUCERS Order By Freezer Serial Number
Model 3 CB
153345 5-1 Ratio B side 153004 High Speed Cup ~ (2 ea required) 153005 High Speed Bearing (2 ea required) 153008 Slow Speed Cup (2 ea required) 153009 Slow Speed Bearing (2 ea required) 153052 Slow Speed Seal (2 ea required) 153054 High Speed Seal (2 ea required) 153313 Brass Gear 5-1 Ratio 153336 Slow Speed Shaft Only 5-1 Ratio 153316 Worm Gear On Shaft 5-1 Ratio 114873 Gasket Set
Model 4 CB
153342 10-1 Ratio A side 153343 10-1 Ratio B side
153014 High Speed Cup (2 ea required) 153015 High Speed Bearing (2 ea required) 153011 Slow Speed Cup (2 ea required) 153012 Slow Speed Bearing (2 ea required) 153051 Slow Speed Seal (2 ea required) 153053 High Speed Seal (2 ea required) 153349 Brass Gear 10-1 Ratio 153339 Slow Speed Shaft OnIy 10-1 Ratio 153347 Worm Gear on Shaft 10-1 Ratio 114874 Gasket Set
Winlwin Model
153341 Wintwin 10-1 Ratio A and B Side
153014 High Speed Cup (2 ea required) 153015 High Speed Bearing (2 ea required) 153011 Slow Speed Cup (2 ea required) 153012 Slow Speed Bearing (2 ea required) 153051 Slow Speed Seal (2 ea required) 153053 High Speed Seal (2 ea required) 153349 Brass Gear 153350 Slow Speed Shaft Only 153348 Worm Gear on Shaft 11 4874 Gasket Set
158055 Gear Reducer OU 51001
Drive Coupling (Order By Machine Serial Number)
Mfg by H C DUKE amp SON INC bull 2115 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
917 amp 927 Beater Shaft Assembly
957 Beater Shaft
Item Part No Description
1 196079 Bushing-Cylinder 2 114752 Beater-Assy Long (Shaft) 3 137334 Blade-Scraper Soft Serve 4- 160500 O-Ring (Shaft Seal) 5- 133098 Bushing (Washer-Shaft Seal) 6 160557 Seal-Beater Shaft
-Items 4-6 111875 Seal-Assy Shaft (Complete)
31
1 113438 2 196079 3 137334 4- 160500 5- 133098 6 160557
-Items 4-6 111875
Shaft-Assy Beater Bushing-Cylinder Blade-Scraper O-ring (Shaft Seal) Washer-Shaft Seal (Bushing) Seal-Beater Shaft (Cup)
Seal-Assy Shaft (Complete)
ao
DISPENSING HEAD
16
r
Q
--~
-----_
REF PART No DESCRIPTION Tl3o 6 119928- Door Assembly shy Complete (Items 7-14) 11637- 7 196688 Door shy Less Parts
a 134921 Spigot shy Less Extension 9 134922 Handle Extension shy Spigot
10 162624 Handle 11 159295 OmiddotRings shy Spigot (Lots of 5)12 159309 O-ring shy 4 - Door 13 196066 Air Relief Screw 14 160621 a-Ring shy Air Relief Screw (Lots of 5)15 136126 Rod - Spigot Switch shy 917 8 927 16 136798 HMdKnob
38
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illmols 61244
SUPERIOR QUAUlY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
Duke Soft Serve Freezer Models 917R and 927RN
5 -______
7
6
UPDATEDDispense Head Assembly
Item Part No
115130 1 116321 2 160583 3 115129 4 160562 5 136126 6 134921 SA 162624 68 134922 7 159295 8 160584 9 162625 9A 114341 10 196185 10A 137870 108 136713
116410
Includes items 1-4 6-8
Description
Head-Assy Dispense (Complete) Head-Assy wActualor O-ring (Head-4-inch) Bleeder-Assy (Air Relief Plug) O-ring (Bleeder-Assy) Rod-Spigot Switch Spigot-long Single Handle-Black Tapered Handle-Spigot (Stainless Steel) O-ring (Spigot) O-ring (Extension) Knob-Hand Stud-Assy Cylinder 1-15116 inch (not shown) Nouie-Slar Adapter (accessory) Adapter-Yogurt Nozzle (not shown) Extension-Spigot (accessory-cake not shown) Kit-Dispense Head Switch
( Use only original or authorized replacement parts with this freezer )
DISPENSING HEAD
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH uu
REF PART No 114765
1 196082 2 114313 3 137018 5 136618 6 162626 8 134499 9 162625
10 115129 11 136794 12 159309 13 159295 14 160562 15 136713 16 160584
DESCRIPTION Door Assy-Complete Door-Less Parts Spigot Assy-Side Spigot Only-Center Extension Only-Center Handle Stud-Handle Stop Hand Knob Air Re1ief-Assy Rod-Spigot Switch O-Ring-4-Door O-Ring-Spigot O-Ring-Air Relief Extension-Spigot a-Ring
39
40
PUMP MOTOR AND HOUSING ASSEMBLY SAFETY SWITCH ASSEMBLY
PRESSURE SWITCH ASSEMBLY ijreg~
I
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH IIIUaA
CAB DPR PUMP BREAKDOWN
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 196091 Pump Base 46 114009 Pump Cover 2 136088 Pump Support 47 113464 Base Bracket Assembly 3 150784 Strain Relief Bushing 48 135725 Stud 1-78 4 Power Cord 49 160131 516 Flatwasher 5 160075 10-24 x 38 Screw 50 160293 Speed Clip 6 135416 Cover Electric Box 51 135724 Button 7 160141 14 Lockwasher 52 160140 10 Lockwasher 8 160491 14-20 x 34 Socket Screw 53 135726 Stud 3 9 113497 Motor Cord 18-3 SJT 54 160109 10-24 Hex Nut 10 151127 Motor 40 RPM Soft Serve 55 135729 Switch Actuator 11 160023 14-20 x 1 Screw 56 135731 Stop - Max Pressure 12 153317 Half Moon Key 57 162315 Spring - Soft Serve 13 112925 Cam Drive Plate Assembly 58 160138 10 Flat Washer 14 160495 14-20 x 14 Set Screw 59 160304 10-24 Stop Nut 15 160369 Pin 60 150456 Pressure Switch 16 134614 Swing Clamp 61 135744 Insulator - Fiber 17 134521 Adjusting Clamp 62 160381 6-32 x 1 Socket Screw 18 160488 Thumb Screw 63 160393 6 Flatwasher 19 134604 Bearing Bushing 64 160146 6 Lockwasher 20 134602 Connecting Rod 65 160309 6-32 Hex Nut 21 134601 Piston 66 160006 6-32 x 14 Screw 22 159295 O-Ring 67 160001 8-32 x 38 Screw 23 134603 Wrist Pin 68 160470 8 Lockwasher 24 136089 Cylinder 69 150481 Circuit Breaker 25 199011 Washer Valve 70 135727 Switch Bracket 26 159282 O-Ring 71 136311 Spacer - Cover Switch 27 113839 Pump Valve Housing 72 160028 Truss Head Screw
Assembly (Metal) 14-20 x 34 SST 28 160582 O-Ring 73 160141 Lockwasher 14 29 199020 Sleeve Rubber 74 160104 Hex Nut 14-20 30 135793 Retainer Clip 75 136312 Button Guard 31 135791 Adapter Hose Outlet 76 160020 Hex Hd Cap Screw 32 160581 O-Ring 14-20 x 1 SST 33 135790 Piston 77 113869 Switch Bracket 34 162308 Spring Soft Serve 78 136110 Button Cover Switch 35 135792 Drain Port 79 162314 Spring 36 160611 O-Ring 80 150456 Switch Pump Safety 37 135896 Hose 24 81 135004 Switch Cover 38 160738 Hose Clamp 82 160296 Screw RH 39 136288 Keeper 6-32 x 1-14 40 160554 O-Ring 83 160146 Lockwasher 6 41 160368 Wing Nut Int Tooth 42 130054 Diaphragm Housing 84 160393 Flatwasher 6 43 199019 Diaphragm 85 160309 Hex Nut 6-32 44 196074 Air Tube-Curved 86 114572 Hose Clamp 45 163433 Air Meter - 20 87 160048 14-20 x 12 TRHM
(other sizes available) 88 160308 6-32 x 516 RDHM 89 114581 Circuit Breaker Bracket
Not Shown 90 163109 Stop Pivot 112791 DPR Pressure Gauge
41
Mfg by H C DUKE amp SON INC 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
42
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Unit does not operate 1 Fuse blown at main disconshy 1 Check fuse size check for low nect voltage if not within 10 of
nameplate rating install transformer or call power company
2 Beater motor out on overload 2 Press starter reset button and check for low voltage Check producllemperalure and overrun
3 Disconnected or broken wife 3 Check wiring and wire connecshyin electrical circuit lions repair or replace lead
wires as necessary
4 Faulty selector switch 4 Replace selector switch
5 Out on high pressure 5 Check for low waler supply or dirty air conden ser
6 Out on low pressure 6 Check limit control and freon charge
Compressor does not operate f Troubte in compressor con- I Refer to Trouble-Shootingshyor operates improperly densing circuit Compressor I Condensing
Circuit
2 Faulty capacitor assembly 2 Replace capaCitor assembly (Single phase only)
3 Faulty contactor 3 Replace contaclOr or pOints
Compressor operates but 1 Loose con neclion at motor 1 Tighten connection beater motor does not starter coil (electrical box)
2 Open starter coil 2 Replace coil
3 Faulty capacitor assembly 3 Replace capaCitor assembly (Single phase only)
Dispensed product too hard 1 Cylinder themostat erratic 1 Adjust thermo slat or replace or set too low
2 Faulty time delay relay 2 Replace time delay relay
3 Solenoid valve leaking 3 Replace solenoid valve
4 Low suction pressure 4 See chart on page 15 for adshyjustments
Leaking of mix from rear housshy 1 Damaged bealer shalt seal 1 Replace shaft seal or O-ring ing discharge tube to drip tray inside seal assy
Mig by H C DUKE amp SON INC bull 2116 Eighlh Avenue Easl Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Mix leaking at dispensing head 1 Faulty 4 O-Ring
2 Head not properly installed
1 Replace 4 O-Ring
2 Install head properly
Mix sours in cabinet 1 Cabinet thermostat setting too high
2 Cabinet thermostat detective
3 Cabinet solenoid valve deshyfective
4 Cabinet switch defective
5 Beater motor out on overshyload (cab side)
1 Adjust thermostat
2 Replace thermostat
3 Replace coil or solenoid
4 Replace cabinet switch
S Reset overload for beater motor See pg 42 unit does not operate
Cabinet too COld
Machine runs continually and Product continues to get colder
Compressor operates only when dispensing
Unit runs conMuously Product does nol reach 180 F temperature
6 Door sWitch defectIVe
1 Cabinet thermostat setting too low
2 Defective thermostat
3 Cabinet solenoid stuck open
4 Cabinet expansion valve set too low
1 Plunger switch out of adjustshyment
2 Su ction pressure too low
3 Defective plunger switch
4 Plunger switch rod engaged
5 Faulty time delay relay
6 Starter or relay contacts stuck
7 Faulty thermostat or bulb not deep enough in well
6 Replace door SWitch
1 Adjust thermostat
2 Replace thermostat
3 Replace solenoid
4 Adjust cabinet expansion valve (See pg 15)
1 Adjust plunger switch
2 Adjust expansion valve and check freon charge
3 Replace plunger switch
4 Close plunger completely
5 Replace time delay relay
I 6 Check contacts i
7 Check bulb location or replace thermostat
1 Cylinder themostat setting 1 Adjust thermostat or replace too high or thermostat deshyfective
1 Trouble in compressor I condensing system
2 ExpanSion valve setiing is too high
3 Low on refrigeranl
1 See Trouble-Shooling-CompressorI Condensing circuit
2 Adjust expansion valve
3 Check and repair leak and recharge
1
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE SLUSHbull
43
44
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Dispensed product too soft (Product temperature above 21 0 F)
1 Automatic expansion yalve incorrectly set or erratic in operation
-2 Leak in refrigeration system
resulting in little or no refrigeration
1 Adjust or replace expanSion valve
2 Pump down system or remove refrigerant charge repair leak evacuate and recharge
3 Excessive oil in system 3 Drain compressor to proper oil leyel pump down and flush system
4 Thermostat set too high taulty
or 4 Adiust thermostat or replace
Product dispenses slOWly out dispensing head
1 Reverse rotation 1 Change rotation to clockshywise from front of freezer
2 Dispensing speed adjustshyment boll too far down
2 Adjust bolt upward
3 Pum p problem 3 See pump Trouble-Shooting chart
4 Product too cold 4 See dispensed product too hard pg42
TROUBLE-SHOOTING CHART COMPRESSORICONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor will not start -hums intermittently (cycling on oyerload)
1 Improperly wired
2 Low line Yoltage
3 Open starting capacitor (single phase only)
4 High discharge pressure
1 Check wiring against diagram
2 Ask power company to increase YOltage to not less than 10 below nameplate rating or install transformer Check for inadequate wire size
3 Replace starting capacitor
4 CheCK water regulating valve setting Check water or air condenser and clean if necessary Make sure disshycharge shut-oft valve is open
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor starts but remains 1 Low line voltage 1 Ask power company to in start windings increase voltage to not less (Single phase only) than 10 below nameplate
rating or install transrormer
2 Improperly wired 2 Check wiring against drawing Check wire size
3 Running capacitor shorted 3 Check by disconnecting running capacitor
4 Starting capacitor weak 4 Check capacitor replace
5 High disCharge pressure 5 Check water regulating valve check water or air condenser and clean il necessary Check discharge shut-off valve
Starter burned out 1 Low line voltage 1 Ask power company to inshycrease voltage to not less than 10 below nameplate rating or install transformer
2 Excessive line voltage 2 Ask power company to reduce voltage to maximum of 10 over nameplate rating
Starting capacitors burn out 1 Voltage 100 low 1 Ask power company to (Single phase only) increase voltage to not less
than 10 below nameplate rating or install translonmer
2 Improper capacitor 2 Replace capacitor with properly rated capacitor as listed in manual
Running capacitors burn out 1 Excessive line voltage 1 Ask power company to reshy(Single phase only) duce line voltage to not more
than 10 above rating 01 motor
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
45
46
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Unit operates long or continuously
1 Shortage of gas
2 Dirty condenser
3 Moisture in system
4 Compressor failing
1 Repair leak and recharge
2 Clean condenser
3 Evacuate and recharge system
4 Check compressor lor proper pressures If inadequate replace compressor
Head pressure too high 1 Refrigerant overcharge
2 Air in system
3 Dirty condenser (air cooled)
4 Unit location too warm (air cooled)
5 Restricted water cooled condenser
6 Water turned off or defective
1 Purge system
2 Purge system evacuate and recharge
3 Clean condenser
4 Relocate unIt away from restriction Place nothing against back or on top of unit
5 Clean or replace condenser
6 Turn on water Or replace water regulating valve regulating valve
Head pressure too low 1 Shortage 01 refrigerant 1 Repair leak and recharge
2 Water regulating valve open 2 Adjust regulating valve too wide
Water 1I0wing through water 1 Water regulating valve 1 Replace water regulating valve waste line when unit is not in operation
defective
Noisy compressor 1 Tubing raUle 1 Bend tubes away from contact
NOTE Refer to warranty card prior to compressor replacement
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING DPR PUMP
TROUBLE PROBABLE CAUSE REMEDY
Pump will not run 1 Pump cover removed 1 Install pump cover
2 Pressure switch actuating 2 Free bulton-check spring and
bulton stuck open (in) pressure switch alignment
3 Pressure switch burned out 3 Replace pressure switch
4 Starting switch in motor bad 4 Install new starting switch
5 Motor burned out 5 Replace motor
6 Circuit breaker kicked out 6 Allow to re- set Replace it or faulty circuit breaker will not
automatically re-set
Motor runs-cam drive plate 1 Loose cam drive plate 1 Tighten set screw in cam will not turn drive plate Check woodruff key
2 Gear stripped 2 Replace gear
Pump will not shut off Mix 1 Pressure swilch actuating 1 Free button-check pressure shoots out pressure relief bulton stuck closed (out) switch alignment
2 Pressure switch stuck in 2 Replace pressure switch closed position
3 Pressure switch assy out 3 Using pressure gauge adjust of adjustment pressure
4 Dirty or plugged diaphragm 4 Disassemble and clean housing (Ref 42) housing
5 Defective O-Ring on 5 Replace O-Ring pressure relief piston
Pump will not prime 1 Insufficient supply of mix 1 Replenish mix supply
2 Piston O-ring defective-no 2 Replace piston O-Ring and suction lubricate
3 Washer valve not sealing 3 Replace washer valve DO NOT LUBRICATE
Pump primes No pressure in 1 Sleeve (Rei 29) not sealing 1 Replace sleeve DO NOT cylinder properly LUBRICATE
2 Loose hose connection on 2 Install or tighten hose clamp pump valve housing (Ref 27)
Mix shoots out Of air intake line 1 Washer valve (Ref 25) 1 Replace washer valve-DO not sealing properly NOT LUBRICATE
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOfT SERVE bull SHAKE bull SLUSH
47
48
TROUBLE-SHOOTING DPR PUMP
Too much air overrun too high-popping problems
Product dispenses slowly out of disPenSing head
1 Air meter too large (Ref 45)
2 Air leak befween mix conshytainer and mix inlet
3 Air line hose crackedshysucking air (Ref 44)
4 Pump pressure too lowshycylinder not full
1 Pump pressure too low
2 PrOduct too cold
3 Low overrun
Diaphragm housing leaking mix 1 Diaphragm housing loose
2 Diaphragm defective
Piston drive assy noisy 1 Bushing bearing worn
2 Defective gear in gear motor
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SIfAKE bull SLUSH
REMEDY
1 Replace washer valve-DO NOT LUBRICATE
2 Install clamp on hose
1 Replace O-Ring and LUBRIshyCATE
1 Clean or replace air meter
2 Replace tube
1 Install smaller air meier
2 Repair as needed
3 Replace air line hose
4 Using pressure gauge adjust pressure switch
1 Using pressure gauge adjust pump pressure
2 Check product temperatureshyshould be about 18 F
3 Check meter-if plugged-clean
1 Tighten wing nuls (Ref 41)
2 Replace diaphragm (Ref 43)
1 Replace bushing bearing (Ref 19)
2 Replace gear
TROUBLE
Mix inlet hose loses prime
Mix on top of piston
PROBABLE CAUSE
1 Washer valve (Ref 25) not sealing properly
2 Mix inlet hose loose
1 Piston O-Ring leaking (Ref 22)
No Air (Overrun) 11 Ai r meter plugged (Ref I 45)
2 Curved air tube pinched
--
DPR PUMP aI
PART NO 199019(i) PART NO 199020 reg DIAPHRAGM RUBBER SLEEVE
PART NO159295 PART NO 159282reg O-RING O-RING0
PART NO 160581reg O-RING
o PART NO PART NO
PART NO199011() 160611(8) 160582 WASHER VALVE O-RING O-RING
PISTON
cJ
DIAPHRAGM HOUSING
CYLINDER
VALVE HOUSIN6 ASSEMBLY
PUUPOUTLET
DRAIN PORT
I PHNO309-755-4553 O-RING CHART HCDUKEampSONINC I
1 I84Z08 SOFT SERVE DISPENSING HEADS I
o PART NO 1605620
PAR~159--1b
PART NO PART NO 1605841 59295()
I PHNO 309-755-4553 O-R ING CHART HCDUKEampSONINC I
- Cover
- Table of Contents
- Safety
- Uncrating amp Inspection13
- Explanation of Electrical Controls
- Operation of Machine
- General Information
- Maintenance amp Adjustment
- Parts Breakdowns
- Trouble-Shooting Charts
- O-ring Charts
-
LUBRICATION AND REASSEMBLY
Reassemble by reversing the steps on page 10 and lubricate as follows
When replacing the flat rubber washer (Ref 25) DO NOT LUBRICATE Important -This rubber washer acts as the air and mix check valve and must lie flat against the top of the pump valve housing Install it over the mushroom cap and move it around to make sure that it is sealed Ins~n the sleeve (Ref 29) Like the washer valve this should not be lubricated and fits on the pump valve housing with the tapper to the bottom
All the O-rings on the pump should be lubricated lightly The O-ring on the piston (Ref 21) should be lubricated liberally as this is the major wearing O-ring and must provide a good seal
Install the O-ring and spring on the piston (Ref 33) Lightly lubricate the O-ring (only enough to make it shiny) Install the piston with the O-ring end in first Lubricate the O-ring on the drain port and install it in the adapter Push in on the drain port and slide the clamp over the top to lock it in place Place the keeper (Ref 39) over the exposed end of the drain port and install the hose and clamp on the drain port Install the pressure switch diaphragm in the diaphragm housing
The pressure switch diaphragm (Ref 43) requires no lubrication
Install the diaphragm housing and diaphragm on the two studs and tighten wing nuts hand tight Install the pump assembly on the bracket-drive assembly in the refrigerated cabinet The shoulder of the white bushing (Ref 19) faces the drive cam (Ref 13) when slid into place properly Be sure to insert the mix output body (Ref 31) over the diaphragm housing (Ref 42) Return swing and adjusting clamp to closed position and tighten thumb screw Replace mix hoses and tighten all hose clamps
NOTE The pump will not operate without the cover (Ref 46) in place
WARNING
MAKE SURE ALL HOSE CONNECTIONS AND THE SWING A CLAMP ARE TIGHT BEFORE PRESSURIZING MACHINE THIS SYSTEM PRODUCES 30-32 PSI DURING NORMAL OPERATION
11
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH PrIntId USA
12
SANITIZING INSTRUCTIONS
The washing and sanitizing instructions explained in this manual are required to maintain a clean sanitary machine Your Soft Serve machine should be disassembled cleaned and sanitized to insure the best possible product and machine operation
Prepare a solution of sanitizing water (for each barrel) in a 2-3 gallon container (Solution should be 200 PPM chlorine using Diversol or equivalent) Place the container in the refrigerated cabinet and insert the mix inlet hoSe or stainless steel mix tube in the sanitizer Turn the pump switch ON (located at front of machine) and allow the pump to build up pressure and shut off automatically Turn the selector switch to the CLEAN OUT position and allow the beater to run for 5 minutes This insures the sanitizing solution touching all of the internal parts Placing a container under the dispensing head release the solution from the cylinder by depressing the dispensing handle Do this slowly as the cylinder is under 30 pounds pressure HINT Remove serrated nozzle (Ref 2) for this operation Sanitize nozzle and install when mix is ready to be dispensed Leave the dispensing handle down until the pump has forced all or most all of the solution through the machine When completed turn the selector switch and pump switch OFF You are now ready to start your freezer
You are working with a pressurized machine Always check for possible leaks when sanitizing your machine A leak around the head is obvious and usually calls for the replacement of the dispensing head O-rings A leak in the shaft seal will flow out of the drain tube just below the dispensing head This usually requires the replacement of the shaft seal or shaft seal O-ring Any leakage in the pump would require that the O-ring be replaced at the point of leakage
NOTE Sanitizing is always done prior to starting the machine Never sanitize the day belore and let the machine sit overnight
START UP INSTRUCTIONS
After sanitizing immediately fitl the container with mix Place the mix inlet hose or stainless steel mix tube in the container of mix (If you are using a plastic bag container supshyplied by the dairy it is recommended that you notch the plastic hose or use a perforated mix can tube so that the bag cannot be drawn into the mix inlet restricting the flow of mix If not careful a hole can be made in the bag) Sanitizer will remain in the pump mix hose and cylinder Turn the pump switch on starting the pump and depress the dispensing handle opening the dispensing plunger Leave the dispensing plunger open until you receive
pure mix at the nozzle The mix will push the remaining sanitizer out of the machine if the plunger is left open Close the plunger after removing all remaining sanitizer (See page 20)
After the cylinder is pressurized and the pump has shut off place the selector switch in the AUTOMATIC position At this pOint make sure the cabinet switch is at the ON position and the thermostat switch is at the DAY position Allow the machine to cycle and freeze down Normally several refrigeration cycles will be needed before a frozen product can be dispensed
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
It is impossible to start the freezer and not have excess air in the cylinder Since you have air in the cylinder and the pump is also adding air to the mix on first start up you will have air pockets in the cylinder These pockets can be eliminated if after two or three cycles you will turn the selector switch to the OFF position Pump switch must be at ON position With the selector switch off slowly open the dispensing plunger and bleed off the excess air until liquid mix comes out the dispensing head Close dispensing handle allow the cylinder to fill and turn selector switch to AUTOMATIC At least 30 minutes cycling time should be allowed to insure a ready produ~l
CLEANING PROCEDURE - DRAINING MACHINE
Place selector switch on the front of the machine to CLEAN OUT and let the beater run for about five minutes This will allow the product in the cylinder to soften up Place a clean sanitized container under the dispensing nozzle and very slowly draw off the semishyfrozen cream until liquid mix appears at the nozzle Remove the stainless steel mix tube or mix hose from the mix container Leave the dispensing plunger open until all the mix has run out of the cylinder and place the container in the cooler for storage Place the mix inlet hose in a container of cold water allow the cylinder to pressurize and flush the machine with the selector switch on CLEAN OUT Follow with a container of warm water until machine is rinsed clean Place the selector switch and pump to OFF Refer to disassembly instructions (Ref page 9)
WARNING
YOUR SOFT SERVE MACHINE OPERATES ON 30-32 POUNDS PRESmiddot A SURE NEVER DISMANTLE ANY PART OF THE MACHINE UNLESS THE MACHINE HAS BEEN DEPRESSURIZED THE SELECTOR
SWITCH IS IN THE OFF POSITION AND THE MAIN POWER SUPPLY HAS BEEN DISCONNECTED DEPRESSURIZE THE CYLINDER BY OPENING THE SPIGOT WITH THE PUMP SWITCH IN THE OFF POSITION
CLEANING MIX HOSE
The CAB models use the DPR mix pump You must disconnect the mix hoses and clean them thoroughly USing a long handle brush and a suitable cleanersanitizer you must brush the interior of the mix hose to insure there is no build up of product on the walls of the hose Water temperature for this cleaning process should be 1800 F to meet some health codes After reassembly pump sanitizer through the hoses
Mfg by H C DUKE amp SON INC 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
13
14
GENERAL INFORMATION OVERRUN ADJUSTMENT
The overrun on your CAB machine equipped with a DPR pump is regulated by the air meter (Item 45-pump parts breakdown) You are supplied with three air metering plugs each containing a different size orifice The smaller the hole the lower the overrun The larger the hole the higher the overrun The orifice or hole in this air meter must be open at all times It is the only source of air into the freezing cylinder Check this daily
The mix will be a determining factor as to the amount of overrun you will be able to achieve Some mixes will accept more air than others thus regulating the size of air meter you can use Test to see which air meter will give you the best overrun and the best tasting shake Run each air meter for one day until you make the determination You may have a slightly higher overrun when you first start up the machine When the machine has run long enough to dispense at least one full cylinder of product you will have the overrun that the machine wil hold the remainder of the day
ADJUSTING PUMP PRESSURE
Only to be performed by a qualified service technician
A WARNING
DISCONNECT MAIN POWER SUPPLY BEFORE REMOVING PANELS
NOTE The pump will not operate without the cover in place
The DPR Pump is controlled by pressure in the mix line acting on the diaphragm (Ref 43) As the pump fills the freezer cylinder with mix pressure builds causing the diaphragm to expand As the diaphragm expands it contacts the button (Ref 51) which in turn depresses the pump pressure switch (Ref 60) The pressure switch button moves inward until the switch is opened turning off the pump motor When product is drawn from the freezer the diaphragm closes the pump pressure switch allowing the pump motor to restart Pump pressure will check the same with air mix or water We suggest the pressure be checked with air pressure only
Step 1 - Remove the rear panel from machine and the pump electrical box cover (Ref 6)
Step 2 - Locate the pressure adjusting nut (Ref 59) Turn the adjusting nut clockwise to increase pressure or counterclockwise to decrease pressure Usually one half turn of the adjusting nut will raise or lower the pressure of the model DPR pump two (2) PSIG
Step 3 - Install a quality pressure gauge in the mix output line Turn main power supply and pump switch to ON pOSition Caution Electrical power present through entire machine Allow the pump to pressurize until it shuts off automatically Observe the gauge pressure reading and disconnect main power supply Repeat the adjustment steps 1 through 3 until the proper pressure is obtained (30 to 32 PSIG) Reinstall the electrical box cover and rear panel
NOTE Pressure tine must be at least 6 fI long in order to obtain an accurate reading
A Pressure Gauge PIN 112791 may be purchased from your local distributor
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
PRESSURE RELIEF ASSEMBLY
The model DPR Pump incorporates a self contained safety pressure relief system The parts included in this assembly are (Ref 30 through 39) Any discharge of mix through the hose (Ref 37) is an indication of excessive pump pressure For corrective action refer to the trouble shooting section of this manual
REFRIGERATION SETTINGS
A WARNING
DISCONNECT MAIN POWER SUPPLY BEFORE REMOVING PANELS
The CAB Soft Serve machine contains two types of temperature control devices the expansion valve and the thermostat (explained in Thermostat Section) The expansion valve meters the flow of refrigerant to the cylinder and must be set correctly to give you maximum production
To locate the expansion valve remove the side panel On the single head CAB machines remove the right side panel The double head machines will have an expansion valve behind both right and left side panels
The expansion valve should only be adjusted by a refrigeration technician with refrigeration test gauges connected to the compressor Adjustments to the valve are shown in the following chart
REFRIGERATION SETTINGS MODEL TYPE OF COOUNG WATER AIR 917CAB 927CAB 957iAa I
Cyl Suction Pressure Rmiddot502 15middot17 (PSIG) 15-17 (PSIG)
9711CAS Cyl Suction Pressure R-502 15middot17 (PSIG) 15middot17 (PSIG)
ALL SOFT SERVE
CABS
Cab Suction Pressure Rmiddot502 Head Pressure Thermostat Differential
8middot10 (PSIG) 230-240 (PSIG)
17degmiddot22deg 7deg~8c
8-10 (PSIG) 230middot315 (PSIG)
17deg_22deg 7c -8deg
NOTE To correctly set the cylinder expansion valve the cabinet thermostat switch An must be in the OFF position (Full counterclockwise) with the compressor running
NOTE To correctly set the cabinet expansion valve the selector switch must be in the OFF position and the cabinet switch in the ON position (With the compressor running)
A refrigeration test gauge must be used when adjusting the suction pressure To reduce the suction pressure turn the adjustment screw on the expansion valve counterclockwise Do not turn more than 14 turn at a time Let the unit operate a sufficient length of time - at least two minutes - to properly read on the gauge the adjustment made
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline illinOIS 61244
SUPERIOR QUAUTY FREEZERS bull SOFt SERVE bull SHAKE bull SLUSH
15
16
THERMOSTATS
A WARNING
DISCONNECT MAIN POWER SUPPLY BEFORE REMOVING PANELS
Thermostat Au is the cabinet refrigeration thermostat The cabinet thermostat operates off of both the day and night switch operation to maintain 44 0 F or lower in the mix storage cabinet This thermostat can be adjusted by rotating the adjustment knob To set this thermostat colder turn the adjustment knob clockwise
CYLINDER THERMOSTAT
The cylinder thermostat is located behind the right side panel (on single head CABs) faCing the front of the machine On the double head CABs like the expansion valve a cylinder thermostat is located behind both the right and left side panels This control has two settings The first is the differential which should be set on 7-8deg F The other side of the control marked HIGH EVENT should be set between 17-220 F
The purpose of the cylinder thermostat is to maintain an 18deg F product during idle periods If the thermostat is set too cold and product is not drawn out of the machine a freeze up condition will result DO NOT run the product below 17deg F
NOTE The settings on the thermostat are ONLY to be used as a guide
For a correct adjustment a thermometer must be used to check the actual product temperature Each thermostat should be set in the field for the product being used Most of the time a temperature setting of between 18deg and 19deg F will maintain a satisfactory product Once the thermostat is set for the mix used it should require no further adjustment
MIg by H C DUKE amp SON INC 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH P~IIIIUSA
THERMOSTAT_________ Turn knob clockwise to make product colder
Differential adjustment
copy
COLDER ~ reg
copy5
2 6Igt
1 7 OFF
copy
THIS ASSEMBLY USED ON LEFT SIDE OF UNIT
RIGHT SIDE USES THIS ASSEMBLY WIO THERMOSTAT A (CAB THERMOSTAT)
MIg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
17
18
MAINTENANCE AND ADJUSTMENT
ONLY TO BE PERFORMED BY A QUALIFIED SERVICE TECHNICIAN
WARNING
MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFF POSITION AND THAT THE MAIN POWER SUPPLY IS DISCONNECTED BEFORE REMOVING PANELS
LUBRICATION INSTRUCTIONS
FAN MOTOR (Air Condenser) Lubricate annually with SAE 10 motor oil in the oil cups
CAUTION DO NOT OVER-LUBRICATE OVER-LUBRICATION CAN DAMAGE MOTOR
GEAR REDUCER The gear reducers are heavy duty worm-geared units manufactured to HC Duke specifications II traces 01 oil are found in the immediate area around the reducer repair the leak (usually an oil seal) and check the oil level When adding oil use only synthetic gear lube in the reducer
NOTE This is a special oil and will not mix with a petroleum base oil Contact your distributor when this oil is needed This oil should be changed at least once a year
OIL LEVEL PLUG
PROPER OIL LEVEL
OIL DRAIN USE SPECIAl PLUG OIL ONLY
USE SPECIAL LOILON=LY-- I
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH ~1U8A
MAINTENANCE AND ADJUSTMENT ONLY TO BE PERFORMED BY A QUALIFIED SERVICE TECHNICIAN
WARNING
MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFFA POSITION AND THAT THE MAIN POWER SUPPLY IS DISCONNECTED BEFORE REMOVING PANELS shy
BEATER MOTOR Beater motors are either single or three phase Capacitor starting is used on the single phase units The beater motor should be inspected and cleaned
WATER COOLED CONDENSER Depending on the condition of your water the condenser on your CAB machine may require cleaning from time to time Usually a restricted flow of water resulting in a high head pressure indicates a dirty condenser The condenser should be flushed out with an acid solution by a qualified service technician
AIR COOLED CONDENSERS At least once a month the face area of the condenser should be inspected for accumulation of dirt and dust Surface dust and dirt can usually be removed with a stiff brush andor vacuum cleaner After brushing hold a light between the fan blades and look through the condenser from the opposite side This procedure will locate those areas where accumulated dirt has lodged between the condenser fins To clean these areas obtain a small tank of nitrogen or C02 with a needle control valve or pressure regulator with a small hose attached and proceed as follows
(1) Place a damp towel or cloth over the face area of the condenser
(2) Open the control valve or regulator on the tank releasing pressure to the coil from the back side cleaning the condenser
(3) Check the condenser periodically with the light and continue the treatment until the fins are clean
For maximum performance replace all worn O-Rings Seals Blades etc
CAUTION USE ORIGINAL OR AUTHORIZED REPLACEMENT PARTS ONLY WITH THIS FREEZER
Mig by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline illinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
19
20
PULLEY ALIGNMENT AND BELT TENSION ONLY TO BE PERFORMED BY A QUALIFIED SERVICE TECHNICIAN
WARNING
A MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFF POSITION AND THAT THE MAIN POWER SUPPLY IS DISCONNECTED
Remove the side panels to expose the pulleys and belts
Check the alignment of the beater motor pulley and gear reducer pulley by placing a straight edge across the faces of the two pulleys If the pulleys are not aligned adjust as necessary until proper alignment is obtained
Depress the belts with a finger at a point midway between the two pulleys When properly adjusted the belts should depress 12 from its normal position with approximately 5 pounds of pressure If the belts are too tight or too loose adjust as necessary until proper belt deflection is obtained Loosen four (4) bolts which hold the motor mounting plate to the frame With these loose adjust tension bolt in or out as required to obtain proper belt tension Retighten bolts
BELTS
Periodically inspect the belts If they are worn excessively replace both belts For best results it is advisable to replace both belts as they are manufactured in matched sets
SCRAPER BLADES
NOTE Be sure to purge all of the sanitizer from the mix system before operating the freezer (see page 12) Failure to completely remove sanitizer or water trom the freezing cylinder before placing the machine in the Automatic position may cause blade breakage and damage the freezer
o o
NEW BlADE WORN BLADE
Replace blades if worn 316 or more
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
END PLAY FOR BEATER DRIVE COUPLING
It is very important that the drive coupling located on the gear reducer be set properly Referring to the Drive Coupling Illustration the following procedure should be followed in setting the end play
WARNING
MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFF POSITION AND THAT THE ELECTRICAL POWER TO THE MACHINE IS DISCONNECTED SO THAT THE UNIT WILL NOT OPERATE
------
DRIVE COUPLING ILLUSTRATION
REF DESCRIPTION REF DESCRIPTION 1 Gear Reducer 6 Reducer Mounting Plate 2 Beater Shaft 7 Set Screws 3 Shaft Seal 8 Bolt Gear Reducer 4 Drive Coupling 9 Bolt Reducer Mounting Plate 5 Spacer 10 Key
11 Output Shaft
Improper drive coupling spacing will damage the beater shaft dispensing head and drive coupling When checking end play settings or replacing a coupling proceed as follows
REMOVING COUPLING
WARNING
DISCONNECT MAIN POWER SUPPLY
Mig by H C DUKE amp SON INC bull 2116 Eighth Allenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SO SERVE bull SHAKE bull SLUSH
21
22
(1) Remove Beater Shaft (Ref 2)
(2) Remove both drive belts (not shown)
(3) Remove gear reducer bolts (Ref 8) Six (6) bolts are located around the face of the reducer
NOTE Remove the top bolt last holding the bottom of the reducer as you do so
(4) Remove the gear reducer (Ref 1) and place-on table or bench
(5) Replace two (2) bolts (Ref 8) one (1) at the top and one (1) at the bottom so that the reducer cover will not come off while the coupling is changed
(6) Loosen the four (4) set screws (Ref 7) and remove the drive coupling (Ref 4) Should the coupling be stuck tight to the ouput shaft lightly tap the coupling from the back with a hammer and bar Sometimes due to age this coupling will stick so tight it will have to be removed with a pulley removing tool or a wheel puller
(7) Remove the key (Ref 10)
INSTALLING THE NEW COUPLING
(1) Clean gear reducer output shaft (Ref 11) with fine emery cloth and slide the new drive coupling on the reducer shaft The coupling should slide on the shaft all the way without the key If the coupling doesnt slide completely on check both coupling and reducer shaft for burrs When a smooth sliding fit is achieved remove coupling and proceed with final assembly
(2) Place key (Ref 10) in keyway slot on the reducer output shaft Keep the key flush with the front end of the output shaft (Ref 11)
(3) Slide the coupling (Ref 4) on the output shaft until it bottoms out on the shaft Leave the four (4) set screws loose as the coupling will have to be adjusted
(4) Remove the two (2) bolts added in preceding Step 5
(5) Place one (1) gear reducer bolt (Ref 8) in the top hole of the cylinder mounting plate
(6) Insert gear reducer into cylinder mounting plate and start top bolt (Ref 8) Do nol tighten completely Now insert the other bolts one at a time When all bolts are in tighten each boll
NOTE Due to very close tolerance between the gear reducer and cylinder mounting plate no alignment is required when Installing the reducer When the reducer bolts are tightened the reducer will seH-align with the cylinder
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
(7) Insert the beater shaft (Ref 2) with the shaft seal and blades into the cylinder and engage beater shaft in the drive coupling Place bushing on front of beater shaft
(8) Tape a dime (10 cents) to the back of the dispensing head in the very center at the point where the beater shaft touches the dispensing head The dime is used to acquire the proper end play setting on the drive coupling which is approximately 332
(9) Place the dispensing head into the cylinder and tighten with the hand knobs Important make sure hand knobs are tight and head is against the end of the cylinder tube
(10) Slide the drive coupling (Ref 4) forward until it is tight against the beater shaft and lock into place the four (4) set screws (Ref n
(11) Remove the dime from the back of the dispensing head
(12) Replace the drive belts
(13) Turn on electrical power
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
23
PANEL BREAKDOWN - 917CAB
~--~
3
REF PART No 1A 114544 1B 112991 2A 136075 2B 136102
3A 137027 3A 137028
3A 136105 3B 136103
3B 134817 4 134818
4 136101 5A 114780
5A 113570 5B 112967
6 112960 7 133291
24 A 917CAB only
I
dJ
DESCRIPTION Frame ssmiddoty Frame ASsmiddoty Lower Side Panel Lower Side Panel LH Side Panel RH Side Panel Upper Side Panel Upper Side Panel Upper Side Panel Rear Panel Rear Panel Top Cover ASsmiddoty Top Cover ASsmiddoty Top Cover ASsmiddoty Filler Panel ASsmiddoty Top Filler Strip
B bull 44 CAB only
~
[At 16 lt0
REF 8
9 10 11 12 12A 13
14 15 16 16A
Air Cooled only
PART No DESCRIPTION 132687 Dispense Panel 134247-01 Dispense Panel Cab-W
Drip Tray (See Pg 35) 114260-01 Door Assmiddoty wIHinges 132444-01 Left Hand Filler Strip 162045 Upper Hinge 162052 Spring LH 162046 Lower Hinge 160026 Screw 160020 Bolt 160139 Washer 110205 Syrup Jar Enclosure 160563-01 Door Gasket 01-Groove) 159174 Drip Tray Button 160293 Clip for Button
Water Cooled only
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
~~
1 ~~o ~o
)
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REF PART No DESCRIPTION REF PART No DESCRIPTION 1 114538 Frame Assy 10 162045 bull Upper Hinge 2 136289 Side Panel LH lOA 162052 Spring LH 3 136313 Rear Panel 11 162046 Lower Hinge 4 114006 Top Panel AC llA 160026 Screw 4A 114428 Top Panel WC l1B 160020 Bolt 4B 114157 Top Panel AC Remote l1C 160139 Washer 5 113983 Front Panel Assy 927CAB 12 136216 Side Panel RH 5A 113985 Front Panel Assy 957cAB 13 160563 Door Gasket (V-Groove) 6 130021 Rear Corner Channel RH 14 159174 Drip Tray Button 6A 135254 Rear Corner Channel LH 14A 160293 Clip for Button 7 137228 Dispensing Panel 162108 Stop Pin (Screw In) 8 Drip Tray (See Pg 35) 136199 Door Pull 9 114260 Door Assy wHinges
25
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
SOFT SERVE CAB ELECTRICAL BOX
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 Contactor (Order By Freezer 5 150463 Selector Switch
Serial Number) 6 159235 Toggle Switch (Pump) 2 Overload (Order By Freezer 7 150456 Spigot Switch
Serial Number) 7A 136124 Button - Spigot Switch 2A Heater Coil (Order By Freezer 7B 162302 Spring - Spigot Switch
Serial Number) 8 150553 Pilot Light - Amber 3 Starter (Order By Freezer 9 150552 Pilot Light - Red
Serial Number) 10 161026 Thermometer (Not Shown) 4 150208 Timer
26
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Pointed u
- - --- -
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prifllcl If USA
In-
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SOFT-SERVE - SINGLE HEAD CAB
REF PART No 1 151351
2 3 4 5 6 151044
151052 7
8 155039 9 155400 10 155117
11 151084
12A 159021 13 155401 13A 155423 14 155403 15 155422
16 154976 16 154975 17 159203 18 155051 19 112901
155410 20 155044
151348
DESCRIPTION Capacitor Relay Assembly (single phase)
150247 Start Capacitor
150249 Run Capacitor 150245 Relay Motor Capacitors (order by freezer serial no) Gear Reducer (see gear reducer breakdown page 36) Driven Pulley (order by freezer serial no) Belt (order by freezer serial no) Motor 1-phase 230 volt Motor 3-phase 208230 volt Driver Pulley (order by freezer serial no)
Water Condenser Automatic Expansion Valve (Cylinder) Air Condenser
Condenser Fan Motor
Condenser Fan Blade High Pressure Cut-Out shyHigh Pressure Cut-Out shyLow Pressure Cut-Out Solenoid Valve
Compressor 230160
AC WC
Compressor 208-230360 Sight Glass Drier (38) Receiver Tank Assembly Water Valve (not shown) Service Valve Compressor Mounting Kit
Note I) lt0 For All 50-Cycle Freezers Order By Freezer Serial Number
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Printad I usA
30
c W -I o o o a w ~ 3
III
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w gta w en u o en
SOFT-SERVE - DOUBLE CAB - WATER COOLED REF PART No DESCRIPTION 1 155026 Water Condenser (B-side) 1 A 155039 Water Condenser (A-side) 2 159203 Sight Glass 3 155051 Drier (38) 4 155400 Automatic Expansion Valve (Cylinder) 5 Gear Reducer (see gear reducer breakdown page 36) 6 155410 Water Valve 7 155423 High Pressure Cut-Out 8 155403 Low Pressure Cut-Out 9 154976 Compressor 230160
151351 Capacitor Relay Assembly (Single Phase) 150247 Start Capacitor 150249 Run Capacitor 150245 Relay
9A 154975 Compressor 208-230360~-11 NOT USED ON THIS MODEL 12 155442 Low Temp Control 13 Driven Pulley (order by freezer serial no) 14 Belt (order by freezer serial no) 15 Driver Pulley (order by freezer serial no) 16 155422 Solenoid Valve 17 151044 Motor 1 phase 230 volt 17A 151052 Motor 3 phase 208230 volt 18 Motor Capacitors single phase only (order by freezer serial no)
Note For All 50-Cycle Freezers Order By Freezer Serial Number
cgt
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH _InU5A
32
c W J o o o -a oCt
aI oCt o W I m ) o c w gta w Ch t--LL o Ch
SOFTmiddotSERVE bull DOUBLE CAB - AIR COOLED REF PART No 1 155120 2 159020 3 151080 4 155400 5 6 159203 7 155051 8 112901 9 151044 9A 151052 10 11 12 14 154976
14A 154975 15 155401 16 155403 17 155443 18 155442 19
21 155422
DESCRIPTION Condenser Fan Blade Fan Motor Automatic Expansion Valve (Cylinder) Reducer (see gear reducer breakdown page 36) Sight Glass Drier Receiver Assembly Motor 1-Phase 230 Volt Motor 3-Phase 208230 Volt Driven Pulley (order by freezer serial no) Belt (ordr by freezer serial no) Driver Pulley (order by freezer serial no) Compressor 230160 151351 Capacitor Relay Assembly (Single Phase)
150247 Start Capacitor 150249 Run Capacitor 150245 Relay
Compressor 208-230360 High Pressure Cut-Out Low Pressure Cut-Out Cabinet Thermostat Low Temp Thermostat NOT USED ON THIS MODEL Motor Capacitors single phase only (order by freezer serial no) Solenoid Valve
Note For All 50-Cycle Freezers Order By Freezer Serial Number
Vl Vl
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prinled In USA
CAB PARTS BREAKDOWN
REF PART No DESCRIPTION PART No DESCRIPTION 1 155109 Cabinet Coil 136297 Condensate Pan (Not Shown) 1A 155113 Motor Cabinet Fan 196092 Mix Tank 7-12 Gal 1B 155099 Fan Blade Cabinet Coil 113997 Front Lid Mix Container
7-12 Gal 136248-01 Rear Lid Mix Cont 7-12 Gal
10 155416 CAB Automatic Expansion 130092 Mix Tube Valve 196028 Mix Tank 10 Gal
137119 Probe 11 -1 4 shy1E 155114 Fan Grill amp Bracket 7-12 Gal Container 1F 155116 Knob 137119-01 Probe 10-34 shy2 113898 DPR Pump Less Motor 7-12 amp 10
(see pump breakdown Gal Container pg 38) 137119-02 Probe 10-14 shy
3 196061 Mix Hose (sold by the foot) 10 Gal Container 4 150416 Door Switch 137120 Base Probe Mtg 4A 114630 Actuator Door Switch 160500 O-Ring
(Not Shown) 114572 Hose Clamp (Not Shown) 5 150527 Retractable Cordset 34
MIg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prlmd UsA
MERCHANDISING ASSY
PART No 115108 115107
PART No
196107-01 196108-01 114610 114608 115132 199030
PART No 162105 162106 112978 158004 158021 158022 158078 158000 158056 158000A 158014 158014A 161000 158049
DESCRIPTION 2S Merchandiser-927-957-978CAB 24 Merchandiser-917CAB
DRIP TRAY
DESCRIPTION
24 Drip Tray-917CAB 26- Drip Tray-927-957-978CAB 24 Tray Insert-917CAD 26 Tray Insert-978CAB-927CAB 26 Tray Insert-957CAB Rubber Bumper (only)
DESCRIPTION Caster With Brake Caster Without Brake Leg-6 4 Cylinder Brush Mix Hose Brush 58 Dia w6 Ft Handle 14 Pump Brush Drain Tube Brush Petrol Gel (12 tube carton) Petrol Gel (6 tube carton) Pe1rol Gel (per tube) Stera Sheen (per case) Stera Sheen (per jar) Pocket Thermometer 1 Dial Z32 Overrun Scale
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SNAKE bull SLUSH
35
36
GEAR REDUCERS Order By Freezer Serial Number
Model 3 CB
153345 5-1 Ratio B side 153004 High Speed Cup ~ (2 ea required) 153005 High Speed Bearing (2 ea required) 153008 Slow Speed Cup (2 ea required) 153009 Slow Speed Bearing (2 ea required) 153052 Slow Speed Seal (2 ea required) 153054 High Speed Seal (2 ea required) 153313 Brass Gear 5-1 Ratio 153336 Slow Speed Shaft Only 5-1 Ratio 153316 Worm Gear On Shaft 5-1 Ratio 114873 Gasket Set
Model 4 CB
153342 10-1 Ratio A side 153343 10-1 Ratio B side
153014 High Speed Cup (2 ea required) 153015 High Speed Bearing (2 ea required) 153011 Slow Speed Cup (2 ea required) 153012 Slow Speed Bearing (2 ea required) 153051 Slow Speed Seal (2 ea required) 153053 High Speed Seal (2 ea required) 153349 Brass Gear 10-1 Ratio 153339 Slow Speed Shaft OnIy 10-1 Ratio 153347 Worm Gear on Shaft 10-1 Ratio 114874 Gasket Set
Winlwin Model
153341 Wintwin 10-1 Ratio A and B Side
153014 High Speed Cup (2 ea required) 153015 High Speed Bearing (2 ea required) 153011 Slow Speed Cup (2 ea required) 153012 Slow Speed Bearing (2 ea required) 153051 Slow Speed Seal (2 ea required) 153053 High Speed Seal (2 ea required) 153349 Brass Gear 153350 Slow Speed Shaft Only 153348 Worm Gear on Shaft 11 4874 Gasket Set
158055 Gear Reducer OU 51001
Drive Coupling (Order By Machine Serial Number)
Mfg by H C DUKE amp SON INC bull 2115 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
917 amp 927 Beater Shaft Assembly
957 Beater Shaft
Item Part No Description
1 196079 Bushing-Cylinder 2 114752 Beater-Assy Long (Shaft) 3 137334 Blade-Scraper Soft Serve 4- 160500 O-Ring (Shaft Seal) 5- 133098 Bushing (Washer-Shaft Seal) 6 160557 Seal-Beater Shaft
-Items 4-6 111875 Seal-Assy Shaft (Complete)
31
1 113438 2 196079 3 137334 4- 160500 5- 133098 6 160557
-Items 4-6 111875
Shaft-Assy Beater Bushing-Cylinder Blade-Scraper O-ring (Shaft Seal) Washer-Shaft Seal (Bushing) Seal-Beater Shaft (Cup)
Seal-Assy Shaft (Complete)
ao
DISPENSING HEAD
16
r
Q
--~
-----_
REF PART No DESCRIPTION Tl3o 6 119928- Door Assembly shy Complete (Items 7-14) 11637- 7 196688 Door shy Less Parts
a 134921 Spigot shy Less Extension 9 134922 Handle Extension shy Spigot
10 162624 Handle 11 159295 OmiddotRings shy Spigot (Lots of 5)12 159309 O-ring shy 4 - Door 13 196066 Air Relief Screw 14 160621 a-Ring shy Air Relief Screw (Lots of 5)15 136126 Rod - Spigot Switch shy 917 8 927 16 136798 HMdKnob
38
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illmols 61244
SUPERIOR QUAUlY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
Duke Soft Serve Freezer Models 917R and 927RN
5 -______
7
6
UPDATEDDispense Head Assembly
Item Part No
115130 1 116321 2 160583 3 115129 4 160562 5 136126 6 134921 SA 162624 68 134922 7 159295 8 160584 9 162625 9A 114341 10 196185 10A 137870 108 136713
116410
Includes items 1-4 6-8
Description
Head-Assy Dispense (Complete) Head-Assy wActualor O-ring (Head-4-inch) Bleeder-Assy (Air Relief Plug) O-ring (Bleeder-Assy) Rod-Spigot Switch Spigot-long Single Handle-Black Tapered Handle-Spigot (Stainless Steel) O-ring (Spigot) O-ring (Extension) Knob-Hand Stud-Assy Cylinder 1-15116 inch (not shown) Nouie-Slar Adapter (accessory) Adapter-Yogurt Nozzle (not shown) Extension-Spigot (accessory-cake not shown) Kit-Dispense Head Switch
( Use only original or authorized replacement parts with this freezer )
DISPENSING HEAD
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH uu
REF PART No 114765
1 196082 2 114313 3 137018 5 136618 6 162626 8 134499 9 162625
10 115129 11 136794 12 159309 13 159295 14 160562 15 136713 16 160584
DESCRIPTION Door Assy-Complete Door-Less Parts Spigot Assy-Side Spigot Only-Center Extension Only-Center Handle Stud-Handle Stop Hand Knob Air Re1ief-Assy Rod-Spigot Switch O-Ring-4-Door O-Ring-Spigot O-Ring-Air Relief Extension-Spigot a-Ring
39
40
PUMP MOTOR AND HOUSING ASSEMBLY SAFETY SWITCH ASSEMBLY
PRESSURE SWITCH ASSEMBLY ijreg~
I
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH IIIUaA
CAB DPR PUMP BREAKDOWN
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 196091 Pump Base 46 114009 Pump Cover 2 136088 Pump Support 47 113464 Base Bracket Assembly 3 150784 Strain Relief Bushing 48 135725 Stud 1-78 4 Power Cord 49 160131 516 Flatwasher 5 160075 10-24 x 38 Screw 50 160293 Speed Clip 6 135416 Cover Electric Box 51 135724 Button 7 160141 14 Lockwasher 52 160140 10 Lockwasher 8 160491 14-20 x 34 Socket Screw 53 135726 Stud 3 9 113497 Motor Cord 18-3 SJT 54 160109 10-24 Hex Nut 10 151127 Motor 40 RPM Soft Serve 55 135729 Switch Actuator 11 160023 14-20 x 1 Screw 56 135731 Stop - Max Pressure 12 153317 Half Moon Key 57 162315 Spring - Soft Serve 13 112925 Cam Drive Plate Assembly 58 160138 10 Flat Washer 14 160495 14-20 x 14 Set Screw 59 160304 10-24 Stop Nut 15 160369 Pin 60 150456 Pressure Switch 16 134614 Swing Clamp 61 135744 Insulator - Fiber 17 134521 Adjusting Clamp 62 160381 6-32 x 1 Socket Screw 18 160488 Thumb Screw 63 160393 6 Flatwasher 19 134604 Bearing Bushing 64 160146 6 Lockwasher 20 134602 Connecting Rod 65 160309 6-32 Hex Nut 21 134601 Piston 66 160006 6-32 x 14 Screw 22 159295 O-Ring 67 160001 8-32 x 38 Screw 23 134603 Wrist Pin 68 160470 8 Lockwasher 24 136089 Cylinder 69 150481 Circuit Breaker 25 199011 Washer Valve 70 135727 Switch Bracket 26 159282 O-Ring 71 136311 Spacer - Cover Switch 27 113839 Pump Valve Housing 72 160028 Truss Head Screw
Assembly (Metal) 14-20 x 34 SST 28 160582 O-Ring 73 160141 Lockwasher 14 29 199020 Sleeve Rubber 74 160104 Hex Nut 14-20 30 135793 Retainer Clip 75 136312 Button Guard 31 135791 Adapter Hose Outlet 76 160020 Hex Hd Cap Screw 32 160581 O-Ring 14-20 x 1 SST 33 135790 Piston 77 113869 Switch Bracket 34 162308 Spring Soft Serve 78 136110 Button Cover Switch 35 135792 Drain Port 79 162314 Spring 36 160611 O-Ring 80 150456 Switch Pump Safety 37 135896 Hose 24 81 135004 Switch Cover 38 160738 Hose Clamp 82 160296 Screw RH 39 136288 Keeper 6-32 x 1-14 40 160554 O-Ring 83 160146 Lockwasher 6 41 160368 Wing Nut Int Tooth 42 130054 Diaphragm Housing 84 160393 Flatwasher 6 43 199019 Diaphragm 85 160309 Hex Nut 6-32 44 196074 Air Tube-Curved 86 114572 Hose Clamp 45 163433 Air Meter - 20 87 160048 14-20 x 12 TRHM
(other sizes available) 88 160308 6-32 x 516 RDHM 89 114581 Circuit Breaker Bracket
Not Shown 90 163109 Stop Pivot 112791 DPR Pressure Gauge
41
Mfg by H C DUKE amp SON INC 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
42
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Unit does not operate 1 Fuse blown at main disconshy 1 Check fuse size check for low nect voltage if not within 10 of
nameplate rating install transformer or call power company
2 Beater motor out on overload 2 Press starter reset button and check for low voltage Check producllemperalure and overrun
3 Disconnected or broken wife 3 Check wiring and wire connecshyin electrical circuit lions repair or replace lead
wires as necessary
4 Faulty selector switch 4 Replace selector switch
5 Out on high pressure 5 Check for low waler supply or dirty air conden ser
6 Out on low pressure 6 Check limit control and freon charge
Compressor does not operate f Troubte in compressor con- I Refer to Trouble-Shootingshyor operates improperly densing circuit Compressor I Condensing
Circuit
2 Faulty capacitor assembly 2 Replace capaCitor assembly (Single phase only)
3 Faulty contactor 3 Replace contaclOr or pOints
Compressor operates but 1 Loose con neclion at motor 1 Tighten connection beater motor does not starter coil (electrical box)
2 Open starter coil 2 Replace coil
3 Faulty capacitor assembly 3 Replace capaCitor assembly (Single phase only)
Dispensed product too hard 1 Cylinder themostat erratic 1 Adjust thermo slat or replace or set too low
2 Faulty time delay relay 2 Replace time delay relay
3 Solenoid valve leaking 3 Replace solenoid valve
4 Low suction pressure 4 See chart on page 15 for adshyjustments
Leaking of mix from rear housshy 1 Damaged bealer shalt seal 1 Replace shaft seal or O-ring ing discharge tube to drip tray inside seal assy
Mig by H C DUKE amp SON INC bull 2116 Eighlh Avenue Easl Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Mix leaking at dispensing head 1 Faulty 4 O-Ring
2 Head not properly installed
1 Replace 4 O-Ring
2 Install head properly
Mix sours in cabinet 1 Cabinet thermostat setting too high
2 Cabinet thermostat detective
3 Cabinet solenoid valve deshyfective
4 Cabinet switch defective
5 Beater motor out on overshyload (cab side)
1 Adjust thermostat
2 Replace thermostat
3 Replace coil or solenoid
4 Replace cabinet switch
S Reset overload for beater motor See pg 42 unit does not operate
Cabinet too COld
Machine runs continually and Product continues to get colder
Compressor operates only when dispensing
Unit runs conMuously Product does nol reach 180 F temperature
6 Door sWitch defectIVe
1 Cabinet thermostat setting too low
2 Defective thermostat
3 Cabinet solenoid stuck open
4 Cabinet expansion valve set too low
1 Plunger switch out of adjustshyment
2 Su ction pressure too low
3 Defective plunger switch
4 Plunger switch rod engaged
5 Faulty time delay relay
6 Starter or relay contacts stuck
7 Faulty thermostat or bulb not deep enough in well
6 Replace door SWitch
1 Adjust thermostat
2 Replace thermostat
3 Replace solenoid
4 Adjust cabinet expansion valve (See pg 15)
1 Adjust plunger switch
2 Adjust expansion valve and check freon charge
3 Replace plunger switch
4 Close plunger completely
5 Replace time delay relay
I 6 Check contacts i
7 Check bulb location or replace thermostat
1 Cylinder themostat setting 1 Adjust thermostat or replace too high or thermostat deshyfective
1 Trouble in compressor I condensing system
2 ExpanSion valve setiing is too high
3 Low on refrigeranl
1 See Trouble-Shooling-CompressorI Condensing circuit
2 Adjust expansion valve
3 Check and repair leak and recharge
1
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE SLUSHbull
43
44
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Dispensed product too soft (Product temperature above 21 0 F)
1 Automatic expansion yalve incorrectly set or erratic in operation
-2 Leak in refrigeration system
resulting in little or no refrigeration
1 Adjust or replace expanSion valve
2 Pump down system or remove refrigerant charge repair leak evacuate and recharge
3 Excessive oil in system 3 Drain compressor to proper oil leyel pump down and flush system
4 Thermostat set too high taulty
or 4 Adiust thermostat or replace
Product dispenses slOWly out dispensing head
1 Reverse rotation 1 Change rotation to clockshywise from front of freezer
2 Dispensing speed adjustshyment boll too far down
2 Adjust bolt upward
3 Pum p problem 3 See pump Trouble-Shooting chart
4 Product too cold 4 See dispensed product too hard pg42
TROUBLE-SHOOTING CHART COMPRESSORICONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor will not start -hums intermittently (cycling on oyerload)
1 Improperly wired
2 Low line Yoltage
3 Open starting capacitor (single phase only)
4 High discharge pressure
1 Check wiring against diagram
2 Ask power company to increase YOltage to not less than 10 below nameplate rating or install transformer Check for inadequate wire size
3 Replace starting capacitor
4 CheCK water regulating valve setting Check water or air condenser and clean if necessary Make sure disshycharge shut-oft valve is open
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor starts but remains 1 Low line voltage 1 Ask power company to in start windings increase voltage to not less (Single phase only) than 10 below nameplate
rating or install transrormer
2 Improperly wired 2 Check wiring against drawing Check wire size
3 Running capacitor shorted 3 Check by disconnecting running capacitor
4 Starting capacitor weak 4 Check capacitor replace
5 High disCharge pressure 5 Check water regulating valve check water or air condenser and clean il necessary Check discharge shut-off valve
Starter burned out 1 Low line voltage 1 Ask power company to inshycrease voltage to not less than 10 below nameplate rating or install transformer
2 Excessive line voltage 2 Ask power company to reduce voltage to maximum of 10 over nameplate rating
Starting capacitors burn out 1 Voltage 100 low 1 Ask power company to (Single phase only) increase voltage to not less
than 10 below nameplate rating or install translonmer
2 Improper capacitor 2 Replace capacitor with properly rated capacitor as listed in manual
Running capacitors burn out 1 Excessive line voltage 1 Ask power company to reshy(Single phase only) duce line voltage to not more
than 10 above rating 01 motor
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
45
46
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Unit operates long or continuously
1 Shortage of gas
2 Dirty condenser
3 Moisture in system
4 Compressor failing
1 Repair leak and recharge
2 Clean condenser
3 Evacuate and recharge system
4 Check compressor lor proper pressures If inadequate replace compressor
Head pressure too high 1 Refrigerant overcharge
2 Air in system
3 Dirty condenser (air cooled)
4 Unit location too warm (air cooled)
5 Restricted water cooled condenser
6 Water turned off or defective
1 Purge system
2 Purge system evacuate and recharge
3 Clean condenser
4 Relocate unIt away from restriction Place nothing against back or on top of unit
5 Clean or replace condenser
6 Turn on water Or replace water regulating valve regulating valve
Head pressure too low 1 Shortage 01 refrigerant 1 Repair leak and recharge
2 Water regulating valve open 2 Adjust regulating valve too wide
Water 1I0wing through water 1 Water regulating valve 1 Replace water regulating valve waste line when unit is not in operation
defective
Noisy compressor 1 Tubing raUle 1 Bend tubes away from contact
NOTE Refer to warranty card prior to compressor replacement
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING DPR PUMP
TROUBLE PROBABLE CAUSE REMEDY
Pump will not run 1 Pump cover removed 1 Install pump cover
2 Pressure switch actuating 2 Free bulton-check spring and
bulton stuck open (in) pressure switch alignment
3 Pressure switch burned out 3 Replace pressure switch
4 Starting switch in motor bad 4 Install new starting switch
5 Motor burned out 5 Replace motor
6 Circuit breaker kicked out 6 Allow to re- set Replace it or faulty circuit breaker will not
automatically re-set
Motor runs-cam drive plate 1 Loose cam drive plate 1 Tighten set screw in cam will not turn drive plate Check woodruff key
2 Gear stripped 2 Replace gear
Pump will not shut off Mix 1 Pressure swilch actuating 1 Free button-check pressure shoots out pressure relief bulton stuck closed (out) switch alignment
2 Pressure switch stuck in 2 Replace pressure switch closed position
3 Pressure switch assy out 3 Using pressure gauge adjust of adjustment pressure
4 Dirty or plugged diaphragm 4 Disassemble and clean housing (Ref 42) housing
5 Defective O-Ring on 5 Replace O-Ring pressure relief piston
Pump will not prime 1 Insufficient supply of mix 1 Replenish mix supply
2 Piston O-ring defective-no 2 Replace piston O-Ring and suction lubricate
3 Washer valve not sealing 3 Replace washer valve DO NOT LUBRICATE
Pump primes No pressure in 1 Sleeve (Rei 29) not sealing 1 Replace sleeve DO NOT cylinder properly LUBRICATE
2 Loose hose connection on 2 Install or tighten hose clamp pump valve housing (Ref 27)
Mix shoots out Of air intake line 1 Washer valve (Ref 25) 1 Replace washer valve-DO not sealing properly NOT LUBRICATE
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOfT SERVE bull SHAKE bull SLUSH
47
48
TROUBLE-SHOOTING DPR PUMP
Too much air overrun too high-popping problems
Product dispenses slowly out of disPenSing head
1 Air meter too large (Ref 45)
2 Air leak befween mix conshytainer and mix inlet
3 Air line hose crackedshysucking air (Ref 44)
4 Pump pressure too lowshycylinder not full
1 Pump pressure too low
2 PrOduct too cold
3 Low overrun
Diaphragm housing leaking mix 1 Diaphragm housing loose
2 Diaphragm defective
Piston drive assy noisy 1 Bushing bearing worn
2 Defective gear in gear motor
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SIfAKE bull SLUSH
REMEDY
1 Replace washer valve-DO NOT LUBRICATE
2 Install clamp on hose
1 Replace O-Ring and LUBRIshyCATE
1 Clean or replace air meter
2 Replace tube
1 Install smaller air meier
2 Repair as needed
3 Replace air line hose
4 Using pressure gauge adjust pressure switch
1 Using pressure gauge adjust pump pressure
2 Check product temperatureshyshould be about 18 F
3 Check meter-if plugged-clean
1 Tighten wing nuls (Ref 41)
2 Replace diaphragm (Ref 43)
1 Replace bushing bearing (Ref 19)
2 Replace gear
TROUBLE
Mix inlet hose loses prime
Mix on top of piston
PROBABLE CAUSE
1 Washer valve (Ref 25) not sealing properly
2 Mix inlet hose loose
1 Piston O-Ring leaking (Ref 22)
No Air (Overrun) 11 Ai r meter plugged (Ref I 45)
2 Curved air tube pinched
--
DPR PUMP aI
PART NO 199019(i) PART NO 199020 reg DIAPHRAGM RUBBER SLEEVE
PART NO159295 PART NO 159282reg O-RING O-RING0
PART NO 160581reg O-RING
o PART NO PART NO
PART NO199011() 160611(8) 160582 WASHER VALVE O-RING O-RING
PISTON
cJ
DIAPHRAGM HOUSING
CYLINDER
VALVE HOUSIN6 ASSEMBLY
PUUPOUTLET
DRAIN PORT
I PHNO309-755-4553 O-RING CHART HCDUKEampSONINC I
1 I84Z08 SOFT SERVE DISPENSING HEADS I
o PART NO 1605620
PAR~159--1b
PART NO PART NO 1605841 59295()
I PHNO 309-755-4553 O-R ING CHART HCDUKEampSONINC I
- Cover
- Table of Contents
- Safety
- Uncrating amp Inspection13
- Explanation of Electrical Controls
- Operation of Machine
- General Information
- Maintenance amp Adjustment
- Parts Breakdowns
- Trouble-Shooting Charts
- O-ring Charts
-
12
SANITIZING INSTRUCTIONS
The washing and sanitizing instructions explained in this manual are required to maintain a clean sanitary machine Your Soft Serve machine should be disassembled cleaned and sanitized to insure the best possible product and machine operation
Prepare a solution of sanitizing water (for each barrel) in a 2-3 gallon container (Solution should be 200 PPM chlorine using Diversol or equivalent) Place the container in the refrigerated cabinet and insert the mix inlet hoSe or stainless steel mix tube in the sanitizer Turn the pump switch ON (located at front of machine) and allow the pump to build up pressure and shut off automatically Turn the selector switch to the CLEAN OUT position and allow the beater to run for 5 minutes This insures the sanitizing solution touching all of the internal parts Placing a container under the dispensing head release the solution from the cylinder by depressing the dispensing handle Do this slowly as the cylinder is under 30 pounds pressure HINT Remove serrated nozzle (Ref 2) for this operation Sanitize nozzle and install when mix is ready to be dispensed Leave the dispensing handle down until the pump has forced all or most all of the solution through the machine When completed turn the selector switch and pump switch OFF You are now ready to start your freezer
You are working with a pressurized machine Always check for possible leaks when sanitizing your machine A leak around the head is obvious and usually calls for the replacement of the dispensing head O-rings A leak in the shaft seal will flow out of the drain tube just below the dispensing head This usually requires the replacement of the shaft seal or shaft seal O-ring Any leakage in the pump would require that the O-ring be replaced at the point of leakage
NOTE Sanitizing is always done prior to starting the machine Never sanitize the day belore and let the machine sit overnight
START UP INSTRUCTIONS
After sanitizing immediately fitl the container with mix Place the mix inlet hose or stainless steel mix tube in the container of mix (If you are using a plastic bag container supshyplied by the dairy it is recommended that you notch the plastic hose or use a perforated mix can tube so that the bag cannot be drawn into the mix inlet restricting the flow of mix If not careful a hole can be made in the bag) Sanitizer will remain in the pump mix hose and cylinder Turn the pump switch on starting the pump and depress the dispensing handle opening the dispensing plunger Leave the dispensing plunger open until you receive
pure mix at the nozzle The mix will push the remaining sanitizer out of the machine if the plunger is left open Close the plunger after removing all remaining sanitizer (See page 20)
After the cylinder is pressurized and the pump has shut off place the selector switch in the AUTOMATIC position At this pOint make sure the cabinet switch is at the ON position and the thermostat switch is at the DAY position Allow the machine to cycle and freeze down Normally several refrigeration cycles will be needed before a frozen product can be dispensed
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
It is impossible to start the freezer and not have excess air in the cylinder Since you have air in the cylinder and the pump is also adding air to the mix on first start up you will have air pockets in the cylinder These pockets can be eliminated if after two or three cycles you will turn the selector switch to the OFF position Pump switch must be at ON position With the selector switch off slowly open the dispensing plunger and bleed off the excess air until liquid mix comes out the dispensing head Close dispensing handle allow the cylinder to fill and turn selector switch to AUTOMATIC At least 30 minutes cycling time should be allowed to insure a ready produ~l
CLEANING PROCEDURE - DRAINING MACHINE
Place selector switch on the front of the machine to CLEAN OUT and let the beater run for about five minutes This will allow the product in the cylinder to soften up Place a clean sanitized container under the dispensing nozzle and very slowly draw off the semishyfrozen cream until liquid mix appears at the nozzle Remove the stainless steel mix tube or mix hose from the mix container Leave the dispensing plunger open until all the mix has run out of the cylinder and place the container in the cooler for storage Place the mix inlet hose in a container of cold water allow the cylinder to pressurize and flush the machine with the selector switch on CLEAN OUT Follow with a container of warm water until machine is rinsed clean Place the selector switch and pump to OFF Refer to disassembly instructions (Ref page 9)
WARNING
YOUR SOFT SERVE MACHINE OPERATES ON 30-32 POUNDS PRESmiddot A SURE NEVER DISMANTLE ANY PART OF THE MACHINE UNLESS THE MACHINE HAS BEEN DEPRESSURIZED THE SELECTOR
SWITCH IS IN THE OFF POSITION AND THE MAIN POWER SUPPLY HAS BEEN DISCONNECTED DEPRESSURIZE THE CYLINDER BY OPENING THE SPIGOT WITH THE PUMP SWITCH IN THE OFF POSITION
CLEANING MIX HOSE
The CAB models use the DPR mix pump You must disconnect the mix hoses and clean them thoroughly USing a long handle brush and a suitable cleanersanitizer you must brush the interior of the mix hose to insure there is no build up of product on the walls of the hose Water temperature for this cleaning process should be 1800 F to meet some health codes After reassembly pump sanitizer through the hoses
Mfg by H C DUKE amp SON INC 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
13
14
GENERAL INFORMATION OVERRUN ADJUSTMENT
The overrun on your CAB machine equipped with a DPR pump is regulated by the air meter (Item 45-pump parts breakdown) You are supplied with three air metering plugs each containing a different size orifice The smaller the hole the lower the overrun The larger the hole the higher the overrun The orifice or hole in this air meter must be open at all times It is the only source of air into the freezing cylinder Check this daily
The mix will be a determining factor as to the amount of overrun you will be able to achieve Some mixes will accept more air than others thus regulating the size of air meter you can use Test to see which air meter will give you the best overrun and the best tasting shake Run each air meter for one day until you make the determination You may have a slightly higher overrun when you first start up the machine When the machine has run long enough to dispense at least one full cylinder of product you will have the overrun that the machine wil hold the remainder of the day
ADJUSTING PUMP PRESSURE
Only to be performed by a qualified service technician
A WARNING
DISCONNECT MAIN POWER SUPPLY BEFORE REMOVING PANELS
NOTE The pump will not operate without the cover in place
The DPR Pump is controlled by pressure in the mix line acting on the diaphragm (Ref 43) As the pump fills the freezer cylinder with mix pressure builds causing the diaphragm to expand As the diaphragm expands it contacts the button (Ref 51) which in turn depresses the pump pressure switch (Ref 60) The pressure switch button moves inward until the switch is opened turning off the pump motor When product is drawn from the freezer the diaphragm closes the pump pressure switch allowing the pump motor to restart Pump pressure will check the same with air mix or water We suggest the pressure be checked with air pressure only
Step 1 - Remove the rear panel from machine and the pump electrical box cover (Ref 6)
Step 2 - Locate the pressure adjusting nut (Ref 59) Turn the adjusting nut clockwise to increase pressure or counterclockwise to decrease pressure Usually one half turn of the adjusting nut will raise or lower the pressure of the model DPR pump two (2) PSIG
Step 3 - Install a quality pressure gauge in the mix output line Turn main power supply and pump switch to ON pOSition Caution Electrical power present through entire machine Allow the pump to pressurize until it shuts off automatically Observe the gauge pressure reading and disconnect main power supply Repeat the adjustment steps 1 through 3 until the proper pressure is obtained (30 to 32 PSIG) Reinstall the electrical box cover and rear panel
NOTE Pressure tine must be at least 6 fI long in order to obtain an accurate reading
A Pressure Gauge PIN 112791 may be purchased from your local distributor
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
PRESSURE RELIEF ASSEMBLY
The model DPR Pump incorporates a self contained safety pressure relief system The parts included in this assembly are (Ref 30 through 39) Any discharge of mix through the hose (Ref 37) is an indication of excessive pump pressure For corrective action refer to the trouble shooting section of this manual
REFRIGERATION SETTINGS
A WARNING
DISCONNECT MAIN POWER SUPPLY BEFORE REMOVING PANELS
The CAB Soft Serve machine contains two types of temperature control devices the expansion valve and the thermostat (explained in Thermostat Section) The expansion valve meters the flow of refrigerant to the cylinder and must be set correctly to give you maximum production
To locate the expansion valve remove the side panel On the single head CAB machines remove the right side panel The double head machines will have an expansion valve behind both right and left side panels
The expansion valve should only be adjusted by a refrigeration technician with refrigeration test gauges connected to the compressor Adjustments to the valve are shown in the following chart
REFRIGERATION SETTINGS MODEL TYPE OF COOUNG WATER AIR 917CAB 927CAB 957iAa I
Cyl Suction Pressure Rmiddot502 15middot17 (PSIG) 15-17 (PSIG)
9711CAS Cyl Suction Pressure R-502 15middot17 (PSIG) 15middot17 (PSIG)
ALL SOFT SERVE
CABS
Cab Suction Pressure Rmiddot502 Head Pressure Thermostat Differential
8middot10 (PSIG) 230-240 (PSIG)
17degmiddot22deg 7deg~8c
8-10 (PSIG) 230middot315 (PSIG)
17deg_22deg 7c -8deg
NOTE To correctly set the cylinder expansion valve the cabinet thermostat switch An must be in the OFF position (Full counterclockwise) with the compressor running
NOTE To correctly set the cabinet expansion valve the selector switch must be in the OFF position and the cabinet switch in the ON position (With the compressor running)
A refrigeration test gauge must be used when adjusting the suction pressure To reduce the suction pressure turn the adjustment screw on the expansion valve counterclockwise Do not turn more than 14 turn at a time Let the unit operate a sufficient length of time - at least two minutes - to properly read on the gauge the adjustment made
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline illinOIS 61244
SUPERIOR QUAUTY FREEZERS bull SOFt SERVE bull SHAKE bull SLUSH
15
16
THERMOSTATS
A WARNING
DISCONNECT MAIN POWER SUPPLY BEFORE REMOVING PANELS
Thermostat Au is the cabinet refrigeration thermostat The cabinet thermostat operates off of both the day and night switch operation to maintain 44 0 F or lower in the mix storage cabinet This thermostat can be adjusted by rotating the adjustment knob To set this thermostat colder turn the adjustment knob clockwise
CYLINDER THERMOSTAT
The cylinder thermostat is located behind the right side panel (on single head CABs) faCing the front of the machine On the double head CABs like the expansion valve a cylinder thermostat is located behind both the right and left side panels This control has two settings The first is the differential which should be set on 7-8deg F The other side of the control marked HIGH EVENT should be set between 17-220 F
The purpose of the cylinder thermostat is to maintain an 18deg F product during idle periods If the thermostat is set too cold and product is not drawn out of the machine a freeze up condition will result DO NOT run the product below 17deg F
NOTE The settings on the thermostat are ONLY to be used as a guide
For a correct adjustment a thermometer must be used to check the actual product temperature Each thermostat should be set in the field for the product being used Most of the time a temperature setting of between 18deg and 19deg F will maintain a satisfactory product Once the thermostat is set for the mix used it should require no further adjustment
MIg by H C DUKE amp SON INC 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH P~IIIIUSA
THERMOSTAT_________ Turn knob clockwise to make product colder
Differential adjustment
copy
COLDER ~ reg
copy5
2 6Igt
1 7 OFF
copy
THIS ASSEMBLY USED ON LEFT SIDE OF UNIT
RIGHT SIDE USES THIS ASSEMBLY WIO THERMOSTAT A (CAB THERMOSTAT)
MIg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
17
18
MAINTENANCE AND ADJUSTMENT
ONLY TO BE PERFORMED BY A QUALIFIED SERVICE TECHNICIAN
WARNING
MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFF POSITION AND THAT THE MAIN POWER SUPPLY IS DISCONNECTED BEFORE REMOVING PANELS
LUBRICATION INSTRUCTIONS
FAN MOTOR (Air Condenser) Lubricate annually with SAE 10 motor oil in the oil cups
CAUTION DO NOT OVER-LUBRICATE OVER-LUBRICATION CAN DAMAGE MOTOR
GEAR REDUCER The gear reducers are heavy duty worm-geared units manufactured to HC Duke specifications II traces 01 oil are found in the immediate area around the reducer repair the leak (usually an oil seal) and check the oil level When adding oil use only synthetic gear lube in the reducer
NOTE This is a special oil and will not mix with a petroleum base oil Contact your distributor when this oil is needed This oil should be changed at least once a year
OIL LEVEL PLUG
PROPER OIL LEVEL
OIL DRAIN USE SPECIAl PLUG OIL ONLY
USE SPECIAL LOILON=LY-- I
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH ~1U8A
MAINTENANCE AND ADJUSTMENT ONLY TO BE PERFORMED BY A QUALIFIED SERVICE TECHNICIAN
WARNING
MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFFA POSITION AND THAT THE MAIN POWER SUPPLY IS DISCONNECTED BEFORE REMOVING PANELS shy
BEATER MOTOR Beater motors are either single or three phase Capacitor starting is used on the single phase units The beater motor should be inspected and cleaned
WATER COOLED CONDENSER Depending on the condition of your water the condenser on your CAB machine may require cleaning from time to time Usually a restricted flow of water resulting in a high head pressure indicates a dirty condenser The condenser should be flushed out with an acid solution by a qualified service technician
AIR COOLED CONDENSERS At least once a month the face area of the condenser should be inspected for accumulation of dirt and dust Surface dust and dirt can usually be removed with a stiff brush andor vacuum cleaner After brushing hold a light between the fan blades and look through the condenser from the opposite side This procedure will locate those areas where accumulated dirt has lodged between the condenser fins To clean these areas obtain a small tank of nitrogen or C02 with a needle control valve or pressure regulator with a small hose attached and proceed as follows
(1) Place a damp towel or cloth over the face area of the condenser
(2) Open the control valve or regulator on the tank releasing pressure to the coil from the back side cleaning the condenser
(3) Check the condenser periodically with the light and continue the treatment until the fins are clean
For maximum performance replace all worn O-Rings Seals Blades etc
CAUTION USE ORIGINAL OR AUTHORIZED REPLACEMENT PARTS ONLY WITH THIS FREEZER
Mig by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline illinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
19
20
PULLEY ALIGNMENT AND BELT TENSION ONLY TO BE PERFORMED BY A QUALIFIED SERVICE TECHNICIAN
WARNING
A MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFF POSITION AND THAT THE MAIN POWER SUPPLY IS DISCONNECTED
Remove the side panels to expose the pulleys and belts
Check the alignment of the beater motor pulley and gear reducer pulley by placing a straight edge across the faces of the two pulleys If the pulleys are not aligned adjust as necessary until proper alignment is obtained
Depress the belts with a finger at a point midway between the two pulleys When properly adjusted the belts should depress 12 from its normal position with approximately 5 pounds of pressure If the belts are too tight or too loose adjust as necessary until proper belt deflection is obtained Loosen four (4) bolts which hold the motor mounting plate to the frame With these loose adjust tension bolt in or out as required to obtain proper belt tension Retighten bolts
BELTS
Periodically inspect the belts If they are worn excessively replace both belts For best results it is advisable to replace both belts as they are manufactured in matched sets
SCRAPER BLADES
NOTE Be sure to purge all of the sanitizer from the mix system before operating the freezer (see page 12) Failure to completely remove sanitizer or water trom the freezing cylinder before placing the machine in the Automatic position may cause blade breakage and damage the freezer
o o
NEW BlADE WORN BLADE
Replace blades if worn 316 or more
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
END PLAY FOR BEATER DRIVE COUPLING
It is very important that the drive coupling located on the gear reducer be set properly Referring to the Drive Coupling Illustration the following procedure should be followed in setting the end play
WARNING
MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFF POSITION AND THAT THE ELECTRICAL POWER TO THE MACHINE IS DISCONNECTED SO THAT THE UNIT WILL NOT OPERATE
------
DRIVE COUPLING ILLUSTRATION
REF DESCRIPTION REF DESCRIPTION 1 Gear Reducer 6 Reducer Mounting Plate 2 Beater Shaft 7 Set Screws 3 Shaft Seal 8 Bolt Gear Reducer 4 Drive Coupling 9 Bolt Reducer Mounting Plate 5 Spacer 10 Key
11 Output Shaft
Improper drive coupling spacing will damage the beater shaft dispensing head and drive coupling When checking end play settings or replacing a coupling proceed as follows
REMOVING COUPLING
WARNING
DISCONNECT MAIN POWER SUPPLY
Mig by H C DUKE amp SON INC bull 2116 Eighth Allenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SO SERVE bull SHAKE bull SLUSH
21
22
(1) Remove Beater Shaft (Ref 2)
(2) Remove both drive belts (not shown)
(3) Remove gear reducer bolts (Ref 8) Six (6) bolts are located around the face of the reducer
NOTE Remove the top bolt last holding the bottom of the reducer as you do so
(4) Remove the gear reducer (Ref 1) and place-on table or bench
(5) Replace two (2) bolts (Ref 8) one (1) at the top and one (1) at the bottom so that the reducer cover will not come off while the coupling is changed
(6) Loosen the four (4) set screws (Ref 7) and remove the drive coupling (Ref 4) Should the coupling be stuck tight to the ouput shaft lightly tap the coupling from the back with a hammer and bar Sometimes due to age this coupling will stick so tight it will have to be removed with a pulley removing tool or a wheel puller
(7) Remove the key (Ref 10)
INSTALLING THE NEW COUPLING
(1) Clean gear reducer output shaft (Ref 11) with fine emery cloth and slide the new drive coupling on the reducer shaft The coupling should slide on the shaft all the way without the key If the coupling doesnt slide completely on check both coupling and reducer shaft for burrs When a smooth sliding fit is achieved remove coupling and proceed with final assembly
(2) Place key (Ref 10) in keyway slot on the reducer output shaft Keep the key flush with the front end of the output shaft (Ref 11)
(3) Slide the coupling (Ref 4) on the output shaft until it bottoms out on the shaft Leave the four (4) set screws loose as the coupling will have to be adjusted
(4) Remove the two (2) bolts added in preceding Step 5
(5) Place one (1) gear reducer bolt (Ref 8) in the top hole of the cylinder mounting plate
(6) Insert gear reducer into cylinder mounting plate and start top bolt (Ref 8) Do nol tighten completely Now insert the other bolts one at a time When all bolts are in tighten each boll
NOTE Due to very close tolerance between the gear reducer and cylinder mounting plate no alignment is required when Installing the reducer When the reducer bolts are tightened the reducer will seH-align with the cylinder
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
(7) Insert the beater shaft (Ref 2) with the shaft seal and blades into the cylinder and engage beater shaft in the drive coupling Place bushing on front of beater shaft
(8) Tape a dime (10 cents) to the back of the dispensing head in the very center at the point where the beater shaft touches the dispensing head The dime is used to acquire the proper end play setting on the drive coupling which is approximately 332
(9) Place the dispensing head into the cylinder and tighten with the hand knobs Important make sure hand knobs are tight and head is against the end of the cylinder tube
(10) Slide the drive coupling (Ref 4) forward until it is tight against the beater shaft and lock into place the four (4) set screws (Ref n
(11) Remove the dime from the back of the dispensing head
(12) Replace the drive belts
(13) Turn on electrical power
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
23
PANEL BREAKDOWN - 917CAB
~--~
3
REF PART No 1A 114544 1B 112991 2A 136075 2B 136102
3A 137027 3A 137028
3A 136105 3B 136103
3B 134817 4 134818
4 136101 5A 114780
5A 113570 5B 112967
6 112960 7 133291
24 A 917CAB only
I
dJ
DESCRIPTION Frame ssmiddoty Frame ASsmiddoty Lower Side Panel Lower Side Panel LH Side Panel RH Side Panel Upper Side Panel Upper Side Panel Upper Side Panel Rear Panel Rear Panel Top Cover ASsmiddoty Top Cover ASsmiddoty Top Cover ASsmiddoty Filler Panel ASsmiddoty Top Filler Strip
B bull 44 CAB only
~
[At 16 lt0
REF 8
9 10 11 12 12A 13
14 15 16 16A
Air Cooled only
PART No DESCRIPTION 132687 Dispense Panel 134247-01 Dispense Panel Cab-W
Drip Tray (See Pg 35) 114260-01 Door Assmiddoty wIHinges 132444-01 Left Hand Filler Strip 162045 Upper Hinge 162052 Spring LH 162046 Lower Hinge 160026 Screw 160020 Bolt 160139 Washer 110205 Syrup Jar Enclosure 160563-01 Door Gasket 01-Groove) 159174 Drip Tray Button 160293 Clip for Button
Water Cooled only
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
~~
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REF PART No DESCRIPTION REF PART No DESCRIPTION 1 114538 Frame Assy 10 162045 bull Upper Hinge 2 136289 Side Panel LH lOA 162052 Spring LH 3 136313 Rear Panel 11 162046 Lower Hinge 4 114006 Top Panel AC llA 160026 Screw 4A 114428 Top Panel WC l1B 160020 Bolt 4B 114157 Top Panel AC Remote l1C 160139 Washer 5 113983 Front Panel Assy 927CAB 12 136216 Side Panel RH 5A 113985 Front Panel Assy 957cAB 13 160563 Door Gasket (V-Groove) 6 130021 Rear Corner Channel RH 14 159174 Drip Tray Button 6A 135254 Rear Corner Channel LH 14A 160293 Clip for Button 7 137228 Dispensing Panel 162108 Stop Pin (Screw In) 8 Drip Tray (See Pg 35) 136199 Door Pull 9 114260 Door Assy wHinges
25
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
SOFT SERVE CAB ELECTRICAL BOX
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 Contactor (Order By Freezer 5 150463 Selector Switch
Serial Number) 6 159235 Toggle Switch (Pump) 2 Overload (Order By Freezer 7 150456 Spigot Switch
Serial Number) 7A 136124 Button - Spigot Switch 2A Heater Coil (Order By Freezer 7B 162302 Spring - Spigot Switch
Serial Number) 8 150553 Pilot Light - Amber 3 Starter (Order By Freezer 9 150552 Pilot Light - Red
Serial Number) 10 161026 Thermometer (Not Shown) 4 150208 Timer
26
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Pointed u
- - --- -
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prifllcl If USA
In-
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SOFT-SERVE - SINGLE HEAD CAB
REF PART No 1 151351
2 3 4 5 6 151044
151052 7
8 155039 9 155400 10 155117
11 151084
12A 159021 13 155401 13A 155423 14 155403 15 155422
16 154976 16 154975 17 159203 18 155051 19 112901
155410 20 155044
151348
DESCRIPTION Capacitor Relay Assembly (single phase)
150247 Start Capacitor
150249 Run Capacitor 150245 Relay Motor Capacitors (order by freezer serial no) Gear Reducer (see gear reducer breakdown page 36) Driven Pulley (order by freezer serial no) Belt (order by freezer serial no) Motor 1-phase 230 volt Motor 3-phase 208230 volt Driver Pulley (order by freezer serial no)
Water Condenser Automatic Expansion Valve (Cylinder) Air Condenser
Condenser Fan Motor
Condenser Fan Blade High Pressure Cut-Out shyHigh Pressure Cut-Out shyLow Pressure Cut-Out Solenoid Valve
Compressor 230160
AC WC
Compressor 208-230360 Sight Glass Drier (38) Receiver Tank Assembly Water Valve (not shown) Service Valve Compressor Mounting Kit
Note I) lt0 For All 50-Cycle Freezers Order By Freezer Serial Number
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Printad I usA
30
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SOFT-SERVE - DOUBLE CAB - WATER COOLED REF PART No DESCRIPTION 1 155026 Water Condenser (B-side) 1 A 155039 Water Condenser (A-side) 2 159203 Sight Glass 3 155051 Drier (38) 4 155400 Automatic Expansion Valve (Cylinder) 5 Gear Reducer (see gear reducer breakdown page 36) 6 155410 Water Valve 7 155423 High Pressure Cut-Out 8 155403 Low Pressure Cut-Out 9 154976 Compressor 230160
151351 Capacitor Relay Assembly (Single Phase) 150247 Start Capacitor 150249 Run Capacitor 150245 Relay
9A 154975 Compressor 208-230360~-11 NOT USED ON THIS MODEL 12 155442 Low Temp Control 13 Driven Pulley (order by freezer serial no) 14 Belt (order by freezer serial no) 15 Driver Pulley (order by freezer serial no) 16 155422 Solenoid Valve 17 151044 Motor 1 phase 230 volt 17A 151052 Motor 3 phase 208230 volt 18 Motor Capacitors single phase only (order by freezer serial no)
Note For All 50-Cycle Freezers Order By Freezer Serial Number
cgt
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH _InU5A
32
c W J o o o -a oCt
aI oCt o W I m ) o c w gta w Ch t--LL o Ch
SOFTmiddotSERVE bull DOUBLE CAB - AIR COOLED REF PART No 1 155120 2 159020 3 151080 4 155400 5 6 159203 7 155051 8 112901 9 151044 9A 151052 10 11 12 14 154976
14A 154975 15 155401 16 155403 17 155443 18 155442 19
21 155422
DESCRIPTION Condenser Fan Blade Fan Motor Automatic Expansion Valve (Cylinder) Reducer (see gear reducer breakdown page 36) Sight Glass Drier Receiver Assembly Motor 1-Phase 230 Volt Motor 3-Phase 208230 Volt Driven Pulley (order by freezer serial no) Belt (ordr by freezer serial no) Driver Pulley (order by freezer serial no) Compressor 230160 151351 Capacitor Relay Assembly (Single Phase)
150247 Start Capacitor 150249 Run Capacitor 150245 Relay
Compressor 208-230360 High Pressure Cut-Out Low Pressure Cut-Out Cabinet Thermostat Low Temp Thermostat NOT USED ON THIS MODEL Motor Capacitors single phase only (order by freezer serial no) Solenoid Valve
Note For All 50-Cycle Freezers Order By Freezer Serial Number
Vl Vl
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prinled In USA
CAB PARTS BREAKDOWN
REF PART No DESCRIPTION PART No DESCRIPTION 1 155109 Cabinet Coil 136297 Condensate Pan (Not Shown) 1A 155113 Motor Cabinet Fan 196092 Mix Tank 7-12 Gal 1B 155099 Fan Blade Cabinet Coil 113997 Front Lid Mix Container
7-12 Gal 136248-01 Rear Lid Mix Cont 7-12 Gal
10 155416 CAB Automatic Expansion 130092 Mix Tube Valve 196028 Mix Tank 10 Gal
137119 Probe 11 -1 4 shy1E 155114 Fan Grill amp Bracket 7-12 Gal Container 1F 155116 Knob 137119-01 Probe 10-34 shy2 113898 DPR Pump Less Motor 7-12 amp 10
(see pump breakdown Gal Container pg 38) 137119-02 Probe 10-14 shy
3 196061 Mix Hose (sold by the foot) 10 Gal Container 4 150416 Door Switch 137120 Base Probe Mtg 4A 114630 Actuator Door Switch 160500 O-Ring
(Not Shown) 114572 Hose Clamp (Not Shown) 5 150527 Retractable Cordset 34
MIg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prlmd UsA
MERCHANDISING ASSY
PART No 115108 115107
PART No
196107-01 196108-01 114610 114608 115132 199030
PART No 162105 162106 112978 158004 158021 158022 158078 158000 158056 158000A 158014 158014A 161000 158049
DESCRIPTION 2S Merchandiser-927-957-978CAB 24 Merchandiser-917CAB
DRIP TRAY
DESCRIPTION
24 Drip Tray-917CAB 26- Drip Tray-927-957-978CAB 24 Tray Insert-917CAD 26 Tray Insert-978CAB-927CAB 26 Tray Insert-957CAB Rubber Bumper (only)
DESCRIPTION Caster With Brake Caster Without Brake Leg-6 4 Cylinder Brush Mix Hose Brush 58 Dia w6 Ft Handle 14 Pump Brush Drain Tube Brush Petrol Gel (12 tube carton) Petrol Gel (6 tube carton) Pe1rol Gel (per tube) Stera Sheen (per case) Stera Sheen (per jar) Pocket Thermometer 1 Dial Z32 Overrun Scale
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SNAKE bull SLUSH
35
36
GEAR REDUCERS Order By Freezer Serial Number
Model 3 CB
153345 5-1 Ratio B side 153004 High Speed Cup ~ (2 ea required) 153005 High Speed Bearing (2 ea required) 153008 Slow Speed Cup (2 ea required) 153009 Slow Speed Bearing (2 ea required) 153052 Slow Speed Seal (2 ea required) 153054 High Speed Seal (2 ea required) 153313 Brass Gear 5-1 Ratio 153336 Slow Speed Shaft Only 5-1 Ratio 153316 Worm Gear On Shaft 5-1 Ratio 114873 Gasket Set
Model 4 CB
153342 10-1 Ratio A side 153343 10-1 Ratio B side
153014 High Speed Cup (2 ea required) 153015 High Speed Bearing (2 ea required) 153011 Slow Speed Cup (2 ea required) 153012 Slow Speed Bearing (2 ea required) 153051 Slow Speed Seal (2 ea required) 153053 High Speed Seal (2 ea required) 153349 Brass Gear 10-1 Ratio 153339 Slow Speed Shaft OnIy 10-1 Ratio 153347 Worm Gear on Shaft 10-1 Ratio 114874 Gasket Set
Winlwin Model
153341 Wintwin 10-1 Ratio A and B Side
153014 High Speed Cup (2 ea required) 153015 High Speed Bearing (2 ea required) 153011 Slow Speed Cup (2 ea required) 153012 Slow Speed Bearing (2 ea required) 153051 Slow Speed Seal (2 ea required) 153053 High Speed Seal (2 ea required) 153349 Brass Gear 153350 Slow Speed Shaft Only 153348 Worm Gear on Shaft 11 4874 Gasket Set
158055 Gear Reducer OU 51001
Drive Coupling (Order By Machine Serial Number)
Mfg by H C DUKE amp SON INC bull 2115 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
917 amp 927 Beater Shaft Assembly
957 Beater Shaft
Item Part No Description
1 196079 Bushing-Cylinder 2 114752 Beater-Assy Long (Shaft) 3 137334 Blade-Scraper Soft Serve 4- 160500 O-Ring (Shaft Seal) 5- 133098 Bushing (Washer-Shaft Seal) 6 160557 Seal-Beater Shaft
-Items 4-6 111875 Seal-Assy Shaft (Complete)
31
1 113438 2 196079 3 137334 4- 160500 5- 133098 6 160557
-Items 4-6 111875
Shaft-Assy Beater Bushing-Cylinder Blade-Scraper O-ring (Shaft Seal) Washer-Shaft Seal (Bushing) Seal-Beater Shaft (Cup)
Seal-Assy Shaft (Complete)
ao
DISPENSING HEAD
16
r
Q
--~
-----_
REF PART No DESCRIPTION Tl3o 6 119928- Door Assembly shy Complete (Items 7-14) 11637- 7 196688 Door shy Less Parts
a 134921 Spigot shy Less Extension 9 134922 Handle Extension shy Spigot
10 162624 Handle 11 159295 OmiddotRings shy Spigot (Lots of 5)12 159309 O-ring shy 4 - Door 13 196066 Air Relief Screw 14 160621 a-Ring shy Air Relief Screw (Lots of 5)15 136126 Rod - Spigot Switch shy 917 8 927 16 136798 HMdKnob
38
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illmols 61244
SUPERIOR QUAUlY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
Duke Soft Serve Freezer Models 917R and 927RN
5 -______
7
6
UPDATEDDispense Head Assembly
Item Part No
115130 1 116321 2 160583 3 115129 4 160562 5 136126 6 134921 SA 162624 68 134922 7 159295 8 160584 9 162625 9A 114341 10 196185 10A 137870 108 136713
116410
Includes items 1-4 6-8
Description
Head-Assy Dispense (Complete) Head-Assy wActualor O-ring (Head-4-inch) Bleeder-Assy (Air Relief Plug) O-ring (Bleeder-Assy) Rod-Spigot Switch Spigot-long Single Handle-Black Tapered Handle-Spigot (Stainless Steel) O-ring (Spigot) O-ring (Extension) Knob-Hand Stud-Assy Cylinder 1-15116 inch (not shown) Nouie-Slar Adapter (accessory) Adapter-Yogurt Nozzle (not shown) Extension-Spigot (accessory-cake not shown) Kit-Dispense Head Switch
( Use only original or authorized replacement parts with this freezer )
DISPENSING HEAD
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH uu
REF PART No 114765
1 196082 2 114313 3 137018 5 136618 6 162626 8 134499 9 162625
10 115129 11 136794 12 159309 13 159295 14 160562 15 136713 16 160584
DESCRIPTION Door Assy-Complete Door-Less Parts Spigot Assy-Side Spigot Only-Center Extension Only-Center Handle Stud-Handle Stop Hand Knob Air Re1ief-Assy Rod-Spigot Switch O-Ring-4-Door O-Ring-Spigot O-Ring-Air Relief Extension-Spigot a-Ring
39
40
PUMP MOTOR AND HOUSING ASSEMBLY SAFETY SWITCH ASSEMBLY
PRESSURE SWITCH ASSEMBLY ijreg~
I
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH IIIUaA
CAB DPR PUMP BREAKDOWN
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 196091 Pump Base 46 114009 Pump Cover 2 136088 Pump Support 47 113464 Base Bracket Assembly 3 150784 Strain Relief Bushing 48 135725 Stud 1-78 4 Power Cord 49 160131 516 Flatwasher 5 160075 10-24 x 38 Screw 50 160293 Speed Clip 6 135416 Cover Electric Box 51 135724 Button 7 160141 14 Lockwasher 52 160140 10 Lockwasher 8 160491 14-20 x 34 Socket Screw 53 135726 Stud 3 9 113497 Motor Cord 18-3 SJT 54 160109 10-24 Hex Nut 10 151127 Motor 40 RPM Soft Serve 55 135729 Switch Actuator 11 160023 14-20 x 1 Screw 56 135731 Stop - Max Pressure 12 153317 Half Moon Key 57 162315 Spring - Soft Serve 13 112925 Cam Drive Plate Assembly 58 160138 10 Flat Washer 14 160495 14-20 x 14 Set Screw 59 160304 10-24 Stop Nut 15 160369 Pin 60 150456 Pressure Switch 16 134614 Swing Clamp 61 135744 Insulator - Fiber 17 134521 Adjusting Clamp 62 160381 6-32 x 1 Socket Screw 18 160488 Thumb Screw 63 160393 6 Flatwasher 19 134604 Bearing Bushing 64 160146 6 Lockwasher 20 134602 Connecting Rod 65 160309 6-32 Hex Nut 21 134601 Piston 66 160006 6-32 x 14 Screw 22 159295 O-Ring 67 160001 8-32 x 38 Screw 23 134603 Wrist Pin 68 160470 8 Lockwasher 24 136089 Cylinder 69 150481 Circuit Breaker 25 199011 Washer Valve 70 135727 Switch Bracket 26 159282 O-Ring 71 136311 Spacer - Cover Switch 27 113839 Pump Valve Housing 72 160028 Truss Head Screw
Assembly (Metal) 14-20 x 34 SST 28 160582 O-Ring 73 160141 Lockwasher 14 29 199020 Sleeve Rubber 74 160104 Hex Nut 14-20 30 135793 Retainer Clip 75 136312 Button Guard 31 135791 Adapter Hose Outlet 76 160020 Hex Hd Cap Screw 32 160581 O-Ring 14-20 x 1 SST 33 135790 Piston 77 113869 Switch Bracket 34 162308 Spring Soft Serve 78 136110 Button Cover Switch 35 135792 Drain Port 79 162314 Spring 36 160611 O-Ring 80 150456 Switch Pump Safety 37 135896 Hose 24 81 135004 Switch Cover 38 160738 Hose Clamp 82 160296 Screw RH 39 136288 Keeper 6-32 x 1-14 40 160554 O-Ring 83 160146 Lockwasher 6 41 160368 Wing Nut Int Tooth 42 130054 Diaphragm Housing 84 160393 Flatwasher 6 43 199019 Diaphragm 85 160309 Hex Nut 6-32 44 196074 Air Tube-Curved 86 114572 Hose Clamp 45 163433 Air Meter - 20 87 160048 14-20 x 12 TRHM
(other sizes available) 88 160308 6-32 x 516 RDHM 89 114581 Circuit Breaker Bracket
Not Shown 90 163109 Stop Pivot 112791 DPR Pressure Gauge
41
Mfg by H C DUKE amp SON INC 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
42
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Unit does not operate 1 Fuse blown at main disconshy 1 Check fuse size check for low nect voltage if not within 10 of
nameplate rating install transformer or call power company
2 Beater motor out on overload 2 Press starter reset button and check for low voltage Check producllemperalure and overrun
3 Disconnected or broken wife 3 Check wiring and wire connecshyin electrical circuit lions repair or replace lead
wires as necessary
4 Faulty selector switch 4 Replace selector switch
5 Out on high pressure 5 Check for low waler supply or dirty air conden ser
6 Out on low pressure 6 Check limit control and freon charge
Compressor does not operate f Troubte in compressor con- I Refer to Trouble-Shootingshyor operates improperly densing circuit Compressor I Condensing
Circuit
2 Faulty capacitor assembly 2 Replace capaCitor assembly (Single phase only)
3 Faulty contactor 3 Replace contaclOr or pOints
Compressor operates but 1 Loose con neclion at motor 1 Tighten connection beater motor does not starter coil (electrical box)
2 Open starter coil 2 Replace coil
3 Faulty capacitor assembly 3 Replace capaCitor assembly (Single phase only)
Dispensed product too hard 1 Cylinder themostat erratic 1 Adjust thermo slat or replace or set too low
2 Faulty time delay relay 2 Replace time delay relay
3 Solenoid valve leaking 3 Replace solenoid valve
4 Low suction pressure 4 See chart on page 15 for adshyjustments
Leaking of mix from rear housshy 1 Damaged bealer shalt seal 1 Replace shaft seal or O-ring ing discharge tube to drip tray inside seal assy
Mig by H C DUKE amp SON INC bull 2116 Eighlh Avenue Easl Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Mix leaking at dispensing head 1 Faulty 4 O-Ring
2 Head not properly installed
1 Replace 4 O-Ring
2 Install head properly
Mix sours in cabinet 1 Cabinet thermostat setting too high
2 Cabinet thermostat detective
3 Cabinet solenoid valve deshyfective
4 Cabinet switch defective
5 Beater motor out on overshyload (cab side)
1 Adjust thermostat
2 Replace thermostat
3 Replace coil or solenoid
4 Replace cabinet switch
S Reset overload for beater motor See pg 42 unit does not operate
Cabinet too COld
Machine runs continually and Product continues to get colder
Compressor operates only when dispensing
Unit runs conMuously Product does nol reach 180 F temperature
6 Door sWitch defectIVe
1 Cabinet thermostat setting too low
2 Defective thermostat
3 Cabinet solenoid stuck open
4 Cabinet expansion valve set too low
1 Plunger switch out of adjustshyment
2 Su ction pressure too low
3 Defective plunger switch
4 Plunger switch rod engaged
5 Faulty time delay relay
6 Starter or relay contacts stuck
7 Faulty thermostat or bulb not deep enough in well
6 Replace door SWitch
1 Adjust thermostat
2 Replace thermostat
3 Replace solenoid
4 Adjust cabinet expansion valve (See pg 15)
1 Adjust plunger switch
2 Adjust expansion valve and check freon charge
3 Replace plunger switch
4 Close plunger completely
5 Replace time delay relay
I 6 Check contacts i
7 Check bulb location or replace thermostat
1 Cylinder themostat setting 1 Adjust thermostat or replace too high or thermostat deshyfective
1 Trouble in compressor I condensing system
2 ExpanSion valve setiing is too high
3 Low on refrigeranl
1 See Trouble-Shooling-CompressorI Condensing circuit
2 Adjust expansion valve
3 Check and repair leak and recharge
1
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE SLUSHbull
43
44
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Dispensed product too soft (Product temperature above 21 0 F)
1 Automatic expansion yalve incorrectly set or erratic in operation
-2 Leak in refrigeration system
resulting in little or no refrigeration
1 Adjust or replace expanSion valve
2 Pump down system or remove refrigerant charge repair leak evacuate and recharge
3 Excessive oil in system 3 Drain compressor to proper oil leyel pump down and flush system
4 Thermostat set too high taulty
or 4 Adiust thermostat or replace
Product dispenses slOWly out dispensing head
1 Reverse rotation 1 Change rotation to clockshywise from front of freezer
2 Dispensing speed adjustshyment boll too far down
2 Adjust bolt upward
3 Pum p problem 3 See pump Trouble-Shooting chart
4 Product too cold 4 See dispensed product too hard pg42
TROUBLE-SHOOTING CHART COMPRESSORICONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor will not start -hums intermittently (cycling on oyerload)
1 Improperly wired
2 Low line Yoltage
3 Open starting capacitor (single phase only)
4 High discharge pressure
1 Check wiring against diagram
2 Ask power company to increase YOltage to not less than 10 below nameplate rating or install transformer Check for inadequate wire size
3 Replace starting capacitor
4 CheCK water regulating valve setting Check water or air condenser and clean if necessary Make sure disshycharge shut-oft valve is open
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor starts but remains 1 Low line voltage 1 Ask power company to in start windings increase voltage to not less (Single phase only) than 10 below nameplate
rating or install transrormer
2 Improperly wired 2 Check wiring against drawing Check wire size
3 Running capacitor shorted 3 Check by disconnecting running capacitor
4 Starting capacitor weak 4 Check capacitor replace
5 High disCharge pressure 5 Check water regulating valve check water or air condenser and clean il necessary Check discharge shut-off valve
Starter burned out 1 Low line voltage 1 Ask power company to inshycrease voltage to not less than 10 below nameplate rating or install transformer
2 Excessive line voltage 2 Ask power company to reduce voltage to maximum of 10 over nameplate rating
Starting capacitors burn out 1 Voltage 100 low 1 Ask power company to (Single phase only) increase voltage to not less
than 10 below nameplate rating or install translonmer
2 Improper capacitor 2 Replace capacitor with properly rated capacitor as listed in manual
Running capacitors burn out 1 Excessive line voltage 1 Ask power company to reshy(Single phase only) duce line voltage to not more
than 10 above rating 01 motor
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
45
46
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Unit operates long or continuously
1 Shortage of gas
2 Dirty condenser
3 Moisture in system
4 Compressor failing
1 Repair leak and recharge
2 Clean condenser
3 Evacuate and recharge system
4 Check compressor lor proper pressures If inadequate replace compressor
Head pressure too high 1 Refrigerant overcharge
2 Air in system
3 Dirty condenser (air cooled)
4 Unit location too warm (air cooled)
5 Restricted water cooled condenser
6 Water turned off or defective
1 Purge system
2 Purge system evacuate and recharge
3 Clean condenser
4 Relocate unIt away from restriction Place nothing against back or on top of unit
5 Clean or replace condenser
6 Turn on water Or replace water regulating valve regulating valve
Head pressure too low 1 Shortage 01 refrigerant 1 Repair leak and recharge
2 Water regulating valve open 2 Adjust regulating valve too wide
Water 1I0wing through water 1 Water regulating valve 1 Replace water regulating valve waste line when unit is not in operation
defective
Noisy compressor 1 Tubing raUle 1 Bend tubes away from contact
NOTE Refer to warranty card prior to compressor replacement
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING DPR PUMP
TROUBLE PROBABLE CAUSE REMEDY
Pump will not run 1 Pump cover removed 1 Install pump cover
2 Pressure switch actuating 2 Free bulton-check spring and
bulton stuck open (in) pressure switch alignment
3 Pressure switch burned out 3 Replace pressure switch
4 Starting switch in motor bad 4 Install new starting switch
5 Motor burned out 5 Replace motor
6 Circuit breaker kicked out 6 Allow to re- set Replace it or faulty circuit breaker will not
automatically re-set
Motor runs-cam drive plate 1 Loose cam drive plate 1 Tighten set screw in cam will not turn drive plate Check woodruff key
2 Gear stripped 2 Replace gear
Pump will not shut off Mix 1 Pressure swilch actuating 1 Free button-check pressure shoots out pressure relief bulton stuck closed (out) switch alignment
2 Pressure switch stuck in 2 Replace pressure switch closed position
3 Pressure switch assy out 3 Using pressure gauge adjust of adjustment pressure
4 Dirty or plugged diaphragm 4 Disassemble and clean housing (Ref 42) housing
5 Defective O-Ring on 5 Replace O-Ring pressure relief piston
Pump will not prime 1 Insufficient supply of mix 1 Replenish mix supply
2 Piston O-ring defective-no 2 Replace piston O-Ring and suction lubricate
3 Washer valve not sealing 3 Replace washer valve DO NOT LUBRICATE
Pump primes No pressure in 1 Sleeve (Rei 29) not sealing 1 Replace sleeve DO NOT cylinder properly LUBRICATE
2 Loose hose connection on 2 Install or tighten hose clamp pump valve housing (Ref 27)
Mix shoots out Of air intake line 1 Washer valve (Ref 25) 1 Replace washer valve-DO not sealing properly NOT LUBRICATE
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOfT SERVE bull SHAKE bull SLUSH
47
48
TROUBLE-SHOOTING DPR PUMP
Too much air overrun too high-popping problems
Product dispenses slowly out of disPenSing head
1 Air meter too large (Ref 45)
2 Air leak befween mix conshytainer and mix inlet
3 Air line hose crackedshysucking air (Ref 44)
4 Pump pressure too lowshycylinder not full
1 Pump pressure too low
2 PrOduct too cold
3 Low overrun
Diaphragm housing leaking mix 1 Diaphragm housing loose
2 Diaphragm defective
Piston drive assy noisy 1 Bushing bearing worn
2 Defective gear in gear motor
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SIfAKE bull SLUSH
REMEDY
1 Replace washer valve-DO NOT LUBRICATE
2 Install clamp on hose
1 Replace O-Ring and LUBRIshyCATE
1 Clean or replace air meter
2 Replace tube
1 Install smaller air meier
2 Repair as needed
3 Replace air line hose
4 Using pressure gauge adjust pressure switch
1 Using pressure gauge adjust pump pressure
2 Check product temperatureshyshould be about 18 F
3 Check meter-if plugged-clean
1 Tighten wing nuls (Ref 41)
2 Replace diaphragm (Ref 43)
1 Replace bushing bearing (Ref 19)
2 Replace gear
TROUBLE
Mix inlet hose loses prime
Mix on top of piston
PROBABLE CAUSE
1 Washer valve (Ref 25) not sealing properly
2 Mix inlet hose loose
1 Piston O-Ring leaking (Ref 22)
No Air (Overrun) 11 Ai r meter plugged (Ref I 45)
2 Curved air tube pinched
--
DPR PUMP aI
PART NO 199019(i) PART NO 199020 reg DIAPHRAGM RUBBER SLEEVE
PART NO159295 PART NO 159282reg O-RING O-RING0
PART NO 160581reg O-RING
o PART NO PART NO
PART NO199011() 160611(8) 160582 WASHER VALVE O-RING O-RING
PISTON
cJ
DIAPHRAGM HOUSING
CYLINDER
VALVE HOUSIN6 ASSEMBLY
PUUPOUTLET
DRAIN PORT
I PHNO309-755-4553 O-RING CHART HCDUKEampSONINC I
1 I84Z08 SOFT SERVE DISPENSING HEADS I
o PART NO 1605620
PAR~159--1b
PART NO PART NO 1605841 59295()
I PHNO 309-755-4553 O-R ING CHART HCDUKEampSONINC I
- Cover
- Table of Contents
- Safety
- Uncrating amp Inspection13
- Explanation of Electrical Controls
- Operation of Machine
- General Information
- Maintenance amp Adjustment
- Parts Breakdowns
- Trouble-Shooting Charts
- O-ring Charts
-
It is impossible to start the freezer and not have excess air in the cylinder Since you have air in the cylinder and the pump is also adding air to the mix on first start up you will have air pockets in the cylinder These pockets can be eliminated if after two or three cycles you will turn the selector switch to the OFF position Pump switch must be at ON position With the selector switch off slowly open the dispensing plunger and bleed off the excess air until liquid mix comes out the dispensing head Close dispensing handle allow the cylinder to fill and turn selector switch to AUTOMATIC At least 30 minutes cycling time should be allowed to insure a ready produ~l
CLEANING PROCEDURE - DRAINING MACHINE
Place selector switch on the front of the machine to CLEAN OUT and let the beater run for about five minutes This will allow the product in the cylinder to soften up Place a clean sanitized container under the dispensing nozzle and very slowly draw off the semishyfrozen cream until liquid mix appears at the nozzle Remove the stainless steel mix tube or mix hose from the mix container Leave the dispensing plunger open until all the mix has run out of the cylinder and place the container in the cooler for storage Place the mix inlet hose in a container of cold water allow the cylinder to pressurize and flush the machine with the selector switch on CLEAN OUT Follow with a container of warm water until machine is rinsed clean Place the selector switch and pump to OFF Refer to disassembly instructions (Ref page 9)
WARNING
YOUR SOFT SERVE MACHINE OPERATES ON 30-32 POUNDS PRESmiddot A SURE NEVER DISMANTLE ANY PART OF THE MACHINE UNLESS THE MACHINE HAS BEEN DEPRESSURIZED THE SELECTOR
SWITCH IS IN THE OFF POSITION AND THE MAIN POWER SUPPLY HAS BEEN DISCONNECTED DEPRESSURIZE THE CYLINDER BY OPENING THE SPIGOT WITH THE PUMP SWITCH IN THE OFF POSITION
CLEANING MIX HOSE
The CAB models use the DPR mix pump You must disconnect the mix hoses and clean them thoroughly USing a long handle brush and a suitable cleanersanitizer you must brush the interior of the mix hose to insure there is no build up of product on the walls of the hose Water temperature for this cleaning process should be 1800 F to meet some health codes After reassembly pump sanitizer through the hoses
Mfg by H C DUKE amp SON INC 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
13
14
GENERAL INFORMATION OVERRUN ADJUSTMENT
The overrun on your CAB machine equipped with a DPR pump is regulated by the air meter (Item 45-pump parts breakdown) You are supplied with three air metering plugs each containing a different size orifice The smaller the hole the lower the overrun The larger the hole the higher the overrun The orifice or hole in this air meter must be open at all times It is the only source of air into the freezing cylinder Check this daily
The mix will be a determining factor as to the amount of overrun you will be able to achieve Some mixes will accept more air than others thus regulating the size of air meter you can use Test to see which air meter will give you the best overrun and the best tasting shake Run each air meter for one day until you make the determination You may have a slightly higher overrun when you first start up the machine When the machine has run long enough to dispense at least one full cylinder of product you will have the overrun that the machine wil hold the remainder of the day
ADJUSTING PUMP PRESSURE
Only to be performed by a qualified service technician
A WARNING
DISCONNECT MAIN POWER SUPPLY BEFORE REMOVING PANELS
NOTE The pump will not operate without the cover in place
The DPR Pump is controlled by pressure in the mix line acting on the diaphragm (Ref 43) As the pump fills the freezer cylinder with mix pressure builds causing the diaphragm to expand As the diaphragm expands it contacts the button (Ref 51) which in turn depresses the pump pressure switch (Ref 60) The pressure switch button moves inward until the switch is opened turning off the pump motor When product is drawn from the freezer the diaphragm closes the pump pressure switch allowing the pump motor to restart Pump pressure will check the same with air mix or water We suggest the pressure be checked with air pressure only
Step 1 - Remove the rear panel from machine and the pump electrical box cover (Ref 6)
Step 2 - Locate the pressure adjusting nut (Ref 59) Turn the adjusting nut clockwise to increase pressure or counterclockwise to decrease pressure Usually one half turn of the adjusting nut will raise or lower the pressure of the model DPR pump two (2) PSIG
Step 3 - Install a quality pressure gauge in the mix output line Turn main power supply and pump switch to ON pOSition Caution Electrical power present through entire machine Allow the pump to pressurize until it shuts off automatically Observe the gauge pressure reading and disconnect main power supply Repeat the adjustment steps 1 through 3 until the proper pressure is obtained (30 to 32 PSIG) Reinstall the electrical box cover and rear panel
NOTE Pressure tine must be at least 6 fI long in order to obtain an accurate reading
A Pressure Gauge PIN 112791 may be purchased from your local distributor
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
PRESSURE RELIEF ASSEMBLY
The model DPR Pump incorporates a self contained safety pressure relief system The parts included in this assembly are (Ref 30 through 39) Any discharge of mix through the hose (Ref 37) is an indication of excessive pump pressure For corrective action refer to the trouble shooting section of this manual
REFRIGERATION SETTINGS
A WARNING
DISCONNECT MAIN POWER SUPPLY BEFORE REMOVING PANELS
The CAB Soft Serve machine contains two types of temperature control devices the expansion valve and the thermostat (explained in Thermostat Section) The expansion valve meters the flow of refrigerant to the cylinder and must be set correctly to give you maximum production
To locate the expansion valve remove the side panel On the single head CAB machines remove the right side panel The double head machines will have an expansion valve behind both right and left side panels
The expansion valve should only be adjusted by a refrigeration technician with refrigeration test gauges connected to the compressor Adjustments to the valve are shown in the following chart
REFRIGERATION SETTINGS MODEL TYPE OF COOUNG WATER AIR 917CAB 927CAB 957iAa I
Cyl Suction Pressure Rmiddot502 15middot17 (PSIG) 15-17 (PSIG)
9711CAS Cyl Suction Pressure R-502 15middot17 (PSIG) 15middot17 (PSIG)
ALL SOFT SERVE
CABS
Cab Suction Pressure Rmiddot502 Head Pressure Thermostat Differential
8middot10 (PSIG) 230-240 (PSIG)
17degmiddot22deg 7deg~8c
8-10 (PSIG) 230middot315 (PSIG)
17deg_22deg 7c -8deg
NOTE To correctly set the cylinder expansion valve the cabinet thermostat switch An must be in the OFF position (Full counterclockwise) with the compressor running
NOTE To correctly set the cabinet expansion valve the selector switch must be in the OFF position and the cabinet switch in the ON position (With the compressor running)
A refrigeration test gauge must be used when adjusting the suction pressure To reduce the suction pressure turn the adjustment screw on the expansion valve counterclockwise Do not turn more than 14 turn at a time Let the unit operate a sufficient length of time - at least two minutes - to properly read on the gauge the adjustment made
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline illinOIS 61244
SUPERIOR QUAUTY FREEZERS bull SOFt SERVE bull SHAKE bull SLUSH
15
16
THERMOSTATS
A WARNING
DISCONNECT MAIN POWER SUPPLY BEFORE REMOVING PANELS
Thermostat Au is the cabinet refrigeration thermostat The cabinet thermostat operates off of both the day and night switch operation to maintain 44 0 F or lower in the mix storage cabinet This thermostat can be adjusted by rotating the adjustment knob To set this thermostat colder turn the adjustment knob clockwise
CYLINDER THERMOSTAT
The cylinder thermostat is located behind the right side panel (on single head CABs) faCing the front of the machine On the double head CABs like the expansion valve a cylinder thermostat is located behind both the right and left side panels This control has two settings The first is the differential which should be set on 7-8deg F The other side of the control marked HIGH EVENT should be set between 17-220 F
The purpose of the cylinder thermostat is to maintain an 18deg F product during idle periods If the thermostat is set too cold and product is not drawn out of the machine a freeze up condition will result DO NOT run the product below 17deg F
NOTE The settings on the thermostat are ONLY to be used as a guide
For a correct adjustment a thermometer must be used to check the actual product temperature Each thermostat should be set in the field for the product being used Most of the time a temperature setting of between 18deg and 19deg F will maintain a satisfactory product Once the thermostat is set for the mix used it should require no further adjustment
MIg by H C DUKE amp SON INC 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH P~IIIIUSA
THERMOSTAT_________ Turn knob clockwise to make product colder
Differential adjustment
copy
COLDER ~ reg
copy5
2 6Igt
1 7 OFF
copy
THIS ASSEMBLY USED ON LEFT SIDE OF UNIT
RIGHT SIDE USES THIS ASSEMBLY WIO THERMOSTAT A (CAB THERMOSTAT)
MIg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
17
18
MAINTENANCE AND ADJUSTMENT
ONLY TO BE PERFORMED BY A QUALIFIED SERVICE TECHNICIAN
WARNING
MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFF POSITION AND THAT THE MAIN POWER SUPPLY IS DISCONNECTED BEFORE REMOVING PANELS
LUBRICATION INSTRUCTIONS
FAN MOTOR (Air Condenser) Lubricate annually with SAE 10 motor oil in the oil cups
CAUTION DO NOT OVER-LUBRICATE OVER-LUBRICATION CAN DAMAGE MOTOR
GEAR REDUCER The gear reducers are heavy duty worm-geared units manufactured to HC Duke specifications II traces 01 oil are found in the immediate area around the reducer repair the leak (usually an oil seal) and check the oil level When adding oil use only synthetic gear lube in the reducer
NOTE This is a special oil and will not mix with a petroleum base oil Contact your distributor when this oil is needed This oil should be changed at least once a year
OIL LEVEL PLUG
PROPER OIL LEVEL
OIL DRAIN USE SPECIAl PLUG OIL ONLY
USE SPECIAL LOILON=LY-- I
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH ~1U8A
MAINTENANCE AND ADJUSTMENT ONLY TO BE PERFORMED BY A QUALIFIED SERVICE TECHNICIAN
WARNING
MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFFA POSITION AND THAT THE MAIN POWER SUPPLY IS DISCONNECTED BEFORE REMOVING PANELS shy
BEATER MOTOR Beater motors are either single or three phase Capacitor starting is used on the single phase units The beater motor should be inspected and cleaned
WATER COOLED CONDENSER Depending on the condition of your water the condenser on your CAB machine may require cleaning from time to time Usually a restricted flow of water resulting in a high head pressure indicates a dirty condenser The condenser should be flushed out with an acid solution by a qualified service technician
AIR COOLED CONDENSERS At least once a month the face area of the condenser should be inspected for accumulation of dirt and dust Surface dust and dirt can usually be removed with a stiff brush andor vacuum cleaner After brushing hold a light between the fan blades and look through the condenser from the opposite side This procedure will locate those areas where accumulated dirt has lodged between the condenser fins To clean these areas obtain a small tank of nitrogen or C02 with a needle control valve or pressure regulator with a small hose attached and proceed as follows
(1) Place a damp towel or cloth over the face area of the condenser
(2) Open the control valve or regulator on the tank releasing pressure to the coil from the back side cleaning the condenser
(3) Check the condenser periodically with the light and continue the treatment until the fins are clean
For maximum performance replace all worn O-Rings Seals Blades etc
CAUTION USE ORIGINAL OR AUTHORIZED REPLACEMENT PARTS ONLY WITH THIS FREEZER
Mig by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline illinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
19
20
PULLEY ALIGNMENT AND BELT TENSION ONLY TO BE PERFORMED BY A QUALIFIED SERVICE TECHNICIAN
WARNING
A MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFF POSITION AND THAT THE MAIN POWER SUPPLY IS DISCONNECTED
Remove the side panels to expose the pulleys and belts
Check the alignment of the beater motor pulley and gear reducer pulley by placing a straight edge across the faces of the two pulleys If the pulleys are not aligned adjust as necessary until proper alignment is obtained
Depress the belts with a finger at a point midway between the two pulleys When properly adjusted the belts should depress 12 from its normal position with approximately 5 pounds of pressure If the belts are too tight or too loose adjust as necessary until proper belt deflection is obtained Loosen four (4) bolts which hold the motor mounting plate to the frame With these loose adjust tension bolt in or out as required to obtain proper belt tension Retighten bolts
BELTS
Periodically inspect the belts If they are worn excessively replace both belts For best results it is advisable to replace both belts as they are manufactured in matched sets
SCRAPER BLADES
NOTE Be sure to purge all of the sanitizer from the mix system before operating the freezer (see page 12) Failure to completely remove sanitizer or water trom the freezing cylinder before placing the machine in the Automatic position may cause blade breakage and damage the freezer
o o
NEW BlADE WORN BLADE
Replace blades if worn 316 or more
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
END PLAY FOR BEATER DRIVE COUPLING
It is very important that the drive coupling located on the gear reducer be set properly Referring to the Drive Coupling Illustration the following procedure should be followed in setting the end play
WARNING
MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFF POSITION AND THAT THE ELECTRICAL POWER TO THE MACHINE IS DISCONNECTED SO THAT THE UNIT WILL NOT OPERATE
------
DRIVE COUPLING ILLUSTRATION
REF DESCRIPTION REF DESCRIPTION 1 Gear Reducer 6 Reducer Mounting Plate 2 Beater Shaft 7 Set Screws 3 Shaft Seal 8 Bolt Gear Reducer 4 Drive Coupling 9 Bolt Reducer Mounting Plate 5 Spacer 10 Key
11 Output Shaft
Improper drive coupling spacing will damage the beater shaft dispensing head and drive coupling When checking end play settings or replacing a coupling proceed as follows
REMOVING COUPLING
WARNING
DISCONNECT MAIN POWER SUPPLY
Mig by H C DUKE amp SON INC bull 2116 Eighth Allenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SO SERVE bull SHAKE bull SLUSH
21
22
(1) Remove Beater Shaft (Ref 2)
(2) Remove both drive belts (not shown)
(3) Remove gear reducer bolts (Ref 8) Six (6) bolts are located around the face of the reducer
NOTE Remove the top bolt last holding the bottom of the reducer as you do so
(4) Remove the gear reducer (Ref 1) and place-on table or bench
(5) Replace two (2) bolts (Ref 8) one (1) at the top and one (1) at the bottom so that the reducer cover will not come off while the coupling is changed
(6) Loosen the four (4) set screws (Ref 7) and remove the drive coupling (Ref 4) Should the coupling be stuck tight to the ouput shaft lightly tap the coupling from the back with a hammer and bar Sometimes due to age this coupling will stick so tight it will have to be removed with a pulley removing tool or a wheel puller
(7) Remove the key (Ref 10)
INSTALLING THE NEW COUPLING
(1) Clean gear reducer output shaft (Ref 11) with fine emery cloth and slide the new drive coupling on the reducer shaft The coupling should slide on the shaft all the way without the key If the coupling doesnt slide completely on check both coupling and reducer shaft for burrs When a smooth sliding fit is achieved remove coupling and proceed with final assembly
(2) Place key (Ref 10) in keyway slot on the reducer output shaft Keep the key flush with the front end of the output shaft (Ref 11)
(3) Slide the coupling (Ref 4) on the output shaft until it bottoms out on the shaft Leave the four (4) set screws loose as the coupling will have to be adjusted
(4) Remove the two (2) bolts added in preceding Step 5
(5) Place one (1) gear reducer bolt (Ref 8) in the top hole of the cylinder mounting plate
(6) Insert gear reducer into cylinder mounting plate and start top bolt (Ref 8) Do nol tighten completely Now insert the other bolts one at a time When all bolts are in tighten each boll
NOTE Due to very close tolerance between the gear reducer and cylinder mounting plate no alignment is required when Installing the reducer When the reducer bolts are tightened the reducer will seH-align with the cylinder
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
(7) Insert the beater shaft (Ref 2) with the shaft seal and blades into the cylinder and engage beater shaft in the drive coupling Place bushing on front of beater shaft
(8) Tape a dime (10 cents) to the back of the dispensing head in the very center at the point where the beater shaft touches the dispensing head The dime is used to acquire the proper end play setting on the drive coupling which is approximately 332
(9) Place the dispensing head into the cylinder and tighten with the hand knobs Important make sure hand knobs are tight and head is against the end of the cylinder tube
(10) Slide the drive coupling (Ref 4) forward until it is tight against the beater shaft and lock into place the four (4) set screws (Ref n
(11) Remove the dime from the back of the dispensing head
(12) Replace the drive belts
(13) Turn on electrical power
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
23
PANEL BREAKDOWN - 917CAB
~--~
3
REF PART No 1A 114544 1B 112991 2A 136075 2B 136102
3A 137027 3A 137028
3A 136105 3B 136103
3B 134817 4 134818
4 136101 5A 114780
5A 113570 5B 112967
6 112960 7 133291
24 A 917CAB only
I
dJ
DESCRIPTION Frame ssmiddoty Frame ASsmiddoty Lower Side Panel Lower Side Panel LH Side Panel RH Side Panel Upper Side Panel Upper Side Panel Upper Side Panel Rear Panel Rear Panel Top Cover ASsmiddoty Top Cover ASsmiddoty Top Cover ASsmiddoty Filler Panel ASsmiddoty Top Filler Strip
B bull 44 CAB only
~
[At 16 lt0
REF 8
9 10 11 12 12A 13
14 15 16 16A
Air Cooled only
PART No DESCRIPTION 132687 Dispense Panel 134247-01 Dispense Panel Cab-W
Drip Tray (See Pg 35) 114260-01 Door Assmiddoty wIHinges 132444-01 Left Hand Filler Strip 162045 Upper Hinge 162052 Spring LH 162046 Lower Hinge 160026 Screw 160020 Bolt 160139 Washer 110205 Syrup Jar Enclosure 160563-01 Door Gasket 01-Groove) 159174 Drip Tray Button 160293 Clip for Button
Water Cooled only
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
~~
1 ~~o ~o
)
cp I
L~
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 114538 Frame Assy 10 162045 bull Upper Hinge 2 136289 Side Panel LH lOA 162052 Spring LH 3 136313 Rear Panel 11 162046 Lower Hinge 4 114006 Top Panel AC llA 160026 Screw 4A 114428 Top Panel WC l1B 160020 Bolt 4B 114157 Top Panel AC Remote l1C 160139 Washer 5 113983 Front Panel Assy 927CAB 12 136216 Side Panel RH 5A 113985 Front Panel Assy 957cAB 13 160563 Door Gasket (V-Groove) 6 130021 Rear Corner Channel RH 14 159174 Drip Tray Button 6A 135254 Rear Corner Channel LH 14A 160293 Clip for Button 7 137228 Dispensing Panel 162108 Stop Pin (Screw In) 8 Drip Tray (See Pg 35) 136199 Door Pull 9 114260 Door Assy wHinges
25
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
SOFT SERVE CAB ELECTRICAL BOX
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 Contactor (Order By Freezer 5 150463 Selector Switch
Serial Number) 6 159235 Toggle Switch (Pump) 2 Overload (Order By Freezer 7 150456 Spigot Switch
Serial Number) 7A 136124 Button - Spigot Switch 2A Heater Coil (Order By Freezer 7B 162302 Spring - Spigot Switch
Serial Number) 8 150553 Pilot Light - Amber 3 Starter (Order By Freezer 9 150552 Pilot Light - Red
Serial Number) 10 161026 Thermometer (Not Shown) 4 150208 Timer
26
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Pointed u
- - --- -
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prifllcl If USA
In-
ca ~ Q ltC wr w I
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SOFT-SERVE - SINGLE HEAD CAB
REF PART No 1 151351
2 3 4 5 6 151044
151052 7
8 155039 9 155400 10 155117
11 151084
12A 159021 13 155401 13A 155423 14 155403 15 155422
16 154976 16 154975 17 159203 18 155051 19 112901
155410 20 155044
151348
DESCRIPTION Capacitor Relay Assembly (single phase)
150247 Start Capacitor
150249 Run Capacitor 150245 Relay Motor Capacitors (order by freezer serial no) Gear Reducer (see gear reducer breakdown page 36) Driven Pulley (order by freezer serial no) Belt (order by freezer serial no) Motor 1-phase 230 volt Motor 3-phase 208230 volt Driver Pulley (order by freezer serial no)
Water Condenser Automatic Expansion Valve (Cylinder) Air Condenser
Condenser Fan Motor
Condenser Fan Blade High Pressure Cut-Out shyHigh Pressure Cut-Out shyLow Pressure Cut-Out Solenoid Valve
Compressor 230160
AC WC
Compressor 208-230360 Sight Glass Drier (38) Receiver Tank Assembly Water Valve (not shown) Service Valve Compressor Mounting Kit
Note I) lt0 For All 50-Cycle Freezers Order By Freezer Serial Number
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Printad I usA
30
c W -I o o o a w ~ 3
III
~ W -I III J o C
w gta w en u o en
SOFT-SERVE - DOUBLE CAB - WATER COOLED REF PART No DESCRIPTION 1 155026 Water Condenser (B-side) 1 A 155039 Water Condenser (A-side) 2 159203 Sight Glass 3 155051 Drier (38) 4 155400 Automatic Expansion Valve (Cylinder) 5 Gear Reducer (see gear reducer breakdown page 36) 6 155410 Water Valve 7 155423 High Pressure Cut-Out 8 155403 Low Pressure Cut-Out 9 154976 Compressor 230160
151351 Capacitor Relay Assembly (Single Phase) 150247 Start Capacitor 150249 Run Capacitor 150245 Relay
9A 154975 Compressor 208-230360~-11 NOT USED ON THIS MODEL 12 155442 Low Temp Control 13 Driven Pulley (order by freezer serial no) 14 Belt (order by freezer serial no) 15 Driver Pulley (order by freezer serial no) 16 155422 Solenoid Valve 17 151044 Motor 1 phase 230 volt 17A 151052 Motor 3 phase 208230 volt 18 Motor Capacitors single phase only (order by freezer serial no)
Note For All 50-Cycle Freezers Order By Freezer Serial Number
cgt
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH _InU5A
32
c W J o o o -a oCt
aI oCt o W I m ) o c w gta w Ch t--LL o Ch
SOFTmiddotSERVE bull DOUBLE CAB - AIR COOLED REF PART No 1 155120 2 159020 3 151080 4 155400 5 6 159203 7 155051 8 112901 9 151044 9A 151052 10 11 12 14 154976
14A 154975 15 155401 16 155403 17 155443 18 155442 19
21 155422
DESCRIPTION Condenser Fan Blade Fan Motor Automatic Expansion Valve (Cylinder) Reducer (see gear reducer breakdown page 36) Sight Glass Drier Receiver Assembly Motor 1-Phase 230 Volt Motor 3-Phase 208230 Volt Driven Pulley (order by freezer serial no) Belt (ordr by freezer serial no) Driver Pulley (order by freezer serial no) Compressor 230160 151351 Capacitor Relay Assembly (Single Phase)
150247 Start Capacitor 150249 Run Capacitor 150245 Relay
Compressor 208-230360 High Pressure Cut-Out Low Pressure Cut-Out Cabinet Thermostat Low Temp Thermostat NOT USED ON THIS MODEL Motor Capacitors single phase only (order by freezer serial no) Solenoid Valve
Note For All 50-Cycle Freezers Order By Freezer Serial Number
Vl Vl
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prinled In USA
CAB PARTS BREAKDOWN
REF PART No DESCRIPTION PART No DESCRIPTION 1 155109 Cabinet Coil 136297 Condensate Pan (Not Shown) 1A 155113 Motor Cabinet Fan 196092 Mix Tank 7-12 Gal 1B 155099 Fan Blade Cabinet Coil 113997 Front Lid Mix Container
7-12 Gal 136248-01 Rear Lid Mix Cont 7-12 Gal
10 155416 CAB Automatic Expansion 130092 Mix Tube Valve 196028 Mix Tank 10 Gal
137119 Probe 11 -1 4 shy1E 155114 Fan Grill amp Bracket 7-12 Gal Container 1F 155116 Knob 137119-01 Probe 10-34 shy2 113898 DPR Pump Less Motor 7-12 amp 10
(see pump breakdown Gal Container pg 38) 137119-02 Probe 10-14 shy
3 196061 Mix Hose (sold by the foot) 10 Gal Container 4 150416 Door Switch 137120 Base Probe Mtg 4A 114630 Actuator Door Switch 160500 O-Ring
(Not Shown) 114572 Hose Clamp (Not Shown) 5 150527 Retractable Cordset 34
MIg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prlmd UsA
MERCHANDISING ASSY
PART No 115108 115107
PART No
196107-01 196108-01 114610 114608 115132 199030
PART No 162105 162106 112978 158004 158021 158022 158078 158000 158056 158000A 158014 158014A 161000 158049
DESCRIPTION 2S Merchandiser-927-957-978CAB 24 Merchandiser-917CAB
DRIP TRAY
DESCRIPTION
24 Drip Tray-917CAB 26- Drip Tray-927-957-978CAB 24 Tray Insert-917CAD 26 Tray Insert-978CAB-927CAB 26 Tray Insert-957CAB Rubber Bumper (only)
DESCRIPTION Caster With Brake Caster Without Brake Leg-6 4 Cylinder Brush Mix Hose Brush 58 Dia w6 Ft Handle 14 Pump Brush Drain Tube Brush Petrol Gel (12 tube carton) Petrol Gel (6 tube carton) Pe1rol Gel (per tube) Stera Sheen (per case) Stera Sheen (per jar) Pocket Thermometer 1 Dial Z32 Overrun Scale
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SNAKE bull SLUSH
35
36
GEAR REDUCERS Order By Freezer Serial Number
Model 3 CB
153345 5-1 Ratio B side 153004 High Speed Cup ~ (2 ea required) 153005 High Speed Bearing (2 ea required) 153008 Slow Speed Cup (2 ea required) 153009 Slow Speed Bearing (2 ea required) 153052 Slow Speed Seal (2 ea required) 153054 High Speed Seal (2 ea required) 153313 Brass Gear 5-1 Ratio 153336 Slow Speed Shaft Only 5-1 Ratio 153316 Worm Gear On Shaft 5-1 Ratio 114873 Gasket Set
Model 4 CB
153342 10-1 Ratio A side 153343 10-1 Ratio B side
153014 High Speed Cup (2 ea required) 153015 High Speed Bearing (2 ea required) 153011 Slow Speed Cup (2 ea required) 153012 Slow Speed Bearing (2 ea required) 153051 Slow Speed Seal (2 ea required) 153053 High Speed Seal (2 ea required) 153349 Brass Gear 10-1 Ratio 153339 Slow Speed Shaft OnIy 10-1 Ratio 153347 Worm Gear on Shaft 10-1 Ratio 114874 Gasket Set
Winlwin Model
153341 Wintwin 10-1 Ratio A and B Side
153014 High Speed Cup (2 ea required) 153015 High Speed Bearing (2 ea required) 153011 Slow Speed Cup (2 ea required) 153012 Slow Speed Bearing (2 ea required) 153051 Slow Speed Seal (2 ea required) 153053 High Speed Seal (2 ea required) 153349 Brass Gear 153350 Slow Speed Shaft Only 153348 Worm Gear on Shaft 11 4874 Gasket Set
158055 Gear Reducer OU 51001
Drive Coupling (Order By Machine Serial Number)
Mfg by H C DUKE amp SON INC bull 2115 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
917 amp 927 Beater Shaft Assembly
957 Beater Shaft
Item Part No Description
1 196079 Bushing-Cylinder 2 114752 Beater-Assy Long (Shaft) 3 137334 Blade-Scraper Soft Serve 4- 160500 O-Ring (Shaft Seal) 5- 133098 Bushing (Washer-Shaft Seal) 6 160557 Seal-Beater Shaft
-Items 4-6 111875 Seal-Assy Shaft (Complete)
31
1 113438 2 196079 3 137334 4- 160500 5- 133098 6 160557
-Items 4-6 111875
Shaft-Assy Beater Bushing-Cylinder Blade-Scraper O-ring (Shaft Seal) Washer-Shaft Seal (Bushing) Seal-Beater Shaft (Cup)
Seal-Assy Shaft (Complete)
ao
DISPENSING HEAD
16
r
Q
--~
-----_
REF PART No DESCRIPTION Tl3o 6 119928- Door Assembly shy Complete (Items 7-14) 11637- 7 196688 Door shy Less Parts
a 134921 Spigot shy Less Extension 9 134922 Handle Extension shy Spigot
10 162624 Handle 11 159295 OmiddotRings shy Spigot (Lots of 5)12 159309 O-ring shy 4 - Door 13 196066 Air Relief Screw 14 160621 a-Ring shy Air Relief Screw (Lots of 5)15 136126 Rod - Spigot Switch shy 917 8 927 16 136798 HMdKnob
38
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illmols 61244
SUPERIOR QUAUlY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
Duke Soft Serve Freezer Models 917R and 927RN
5 -______
7
6
UPDATEDDispense Head Assembly
Item Part No
115130 1 116321 2 160583 3 115129 4 160562 5 136126 6 134921 SA 162624 68 134922 7 159295 8 160584 9 162625 9A 114341 10 196185 10A 137870 108 136713
116410
Includes items 1-4 6-8
Description
Head-Assy Dispense (Complete) Head-Assy wActualor O-ring (Head-4-inch) Bleeder-Assy (Air Relief Plug) O-ring (Bleeder-Assy) Rod-Spigot Switch Spigot-long Single Handle-Black Tapered Handle-Spigot (Stainless Steel) O-ring (Spigot) O-ring (Extension) Knob-Hand Stud-Assy Cylinder 1-15116 inch (not shown) Nouie-Slar Adapter (accessory) Adapter-Yogurt Nozzle (not shown) Extension-Spigot (accessory-cake not shown) Kit-Dispense Head Switch
( Use only original or authorized replacement parts with this freezer )
DISPENSING HEAD
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH uu
REF PART No 114765
1 196082 2 114313 3 137018 5 136618 6 162626 8 134499 9 162625
10 115129 11 136794 12 159309 13 159295 14 160562 15 136713 16 160584
DESCRIPTION Door Assy-Complete Door-Less Parts Spigot Assy-Side Spigot Only-Center Extension Only-Center Handle Stud-Handle Stop Hand Knob Air Re1ief-Assy Rod-Spigot Switch O-Ring-4-Door O-Ring-Spigot O-Ring-Air Relief Extension-Spigot a-Ring
39
40
PUMP MOTOR AND HOUSING ASSEMBLY SAFETY SWITCH ASSEMBLY
PRESSURE SWITCH ASSEMBLY ijreg~
I
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH IIIUaA
CAB DPR PUMP BREAKDOWN
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 196091 Pump Base 46 114009 Pump Cover 2 136088 Pump Support 47 113464 Base Bracket Assembly 3 150784 Strain Relief Bushing 48 135725 Stud 1-78 4 Power Cord 49 160131 516 Flatwasher 5 160075 10-24 x 38 Screw 50 160293 Speed Clip 6 135416 Cover Electric Box 51 135724 Button 7 160141 14 Lockwasher 52 160140 10 Lockwasher 8 160491 14-20 x 34 Socket Screw 53 135726 Stud 3 9 113497 Motor Cord 18-3 SJT 54 160109 10-24 Hex Nut 10 151127 Motor 40 RPM Soft Serve 55 135729 Switch Actuator 11 160023 14-20 x 1 Screw 56 135731 Stop - Max Pressure 12 153317 Half Moon Key 57 162315 Spring - Soft Serve 13 112925 Cam Drive Plate Assembly 58 160138 10 Flat Washer 14 160495 14-20 x 14 Set Screw 59 160304 10-24 Stop Nut 15 160369 Pin 60 150456 Pressure Switch 16 134614 Swing Clamp 61 135744 Insulator - Fiber 17 134521 Adjusting Clamp 62 160381 6-32 x 1 Socket Screw 18 160488 Thumb Screw 63 160393 6 Flatwasher 19 134604 Bearing Bushing 64 160146 6 Lockwasher 20 134602 Connecting Rod 65 160309 6-32 Hex Nut 21 134601 Piston 66 160006 6-32 x 14 Screw 22 159295 O-Ring 67 160001 8-32 x 38 Screw 23 134603 Wrist Pin 68 160470 8 Lockwasher 24 136089 Cylinder 69 150481 Circuit Breaker 25 199011 Washer Valve 70 135727 Switch Bracket 26 159282 O-Ring 71 136311 Spacer - Cover Switch 27 113839 Pump Valve Housing 72 160028 Truss Head Screw
Assembly (Metal) 14-20 x 34 SST 28 160582 O-Ring 73 160141 Lockwasher 14 29 199020 Sleeve Rubber 74 160104 Hex Nut 14-20 30 135793 Retainer Clip 75 136312 Button Guard 31 135791 Adapter Hose Outlet 76 160020 Hex Hd Cap Screw 32 160581 O-Ring 14-20 x 1 SST 33 135790 Piston 77 113869 Switch Bracket 34 162308 Spring Soft Serve 78 136110 Button Cover Switch 35 135792 Drain Port 79 162314 Spring 36 160611 O-Ring 80 150456 Switch Pump Safety 37 135896 Hose 24 81 135004 Switch Cover 38 160738 Hose Clamp 82 160296 Screw RH 39 136288 Keeper 6-32 x 1-14 40 160554 O-Ring 83 160146 Lockwasher 6 41 160368 Wing Nut Int Tooth 42 130054 Diaphragm Housing 84 160393 Flatwasher 6 43 199019 Diaphragm 85 160309 Hex Nut 6-32 44 196074 Air Tube-Curved 86 114572 Hose Clamp 45 163433 Air Meter - 20 87 160048 14-20 x 12 TRHM
(other sizes available) 88 160308 6-32 x 516 RDHM 89 114581 Circuit Breaker Bracket
Not Shown 90 163109 Stop Pivot 112791 DPR Pressure Gauge
41
Mfg by H C DUKE amp SON INC 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
42
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Unit does not operate 1 Fuse blown at main disconshy 1 Check fuse size check for low nect voltage if not within 10 of
nameplate rating install transformer or call power company
2 Beater motor out on overload 2 Press starter reset button and check for low voltage Check producllemperalure and overrun
3 Disconnected or broken wife 3 Check wiring and wire connecshyin electrical circuit lions repair or replace lead
wires as necessary
4 Faulty selector switch 4 Replace selector switch
5 Out on high pressure 5 Check for low waler supply or dirty air conden ser
6 Out on low pressure 6 Check limit control and freon charge
Compressor does not operate f Troubte in compressor con- I Refer to Trouble-Shootingshyor operates improperly densing circuit Compressor I Condensing
Circuit
2 Faulty capacitor assembly 2 Replace capaCitor assembly (Single phase only)
3 Faulty contactor 3 Replace contaclOr or pOints
Compressor operates but 1 Loose con neclion at motor 1 Tighten connection beater motor does not starter coil (electrical box)
2 Open starter coil 2 Replace coil
3 Faulty capacitor assembly 3 Replace capaCitor assembly (Single phase only)
Dispensed product too hard 1 Cylinder themostat erratic 1 Adjust thermo slat or replace or set too low
2 Faulty time delay relay 2 Replace time delay relay
3 Solenoid valve leaking 3 Replace solenoid valve
4 Low suction pressure 4 See chart on page 15 for adshyjustments
Leaking of mix from rear housshy 1 Damaged bealer shalt seal 1 Replace shaft seal or O-ring ing discharge tube to drip tray inside seal assy
Mig by H C DUKE amp SON INC bull 2116 Eighlh Avenue Easl Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Mix leaking at dispensing head 1 Faulty 4 O-Ring
2 Head not properly installed
1 Replace 4 O-Ring
2 Install head properly
Mix sours in cabinet 1 Cabinet thermostat setting too high
2 Cabinet thermostat detective
3 Cabinet solenoid valve deshyfective
4 Cabinet switch defective
5 Beater motor out on overshyload (cab side)
1 Adjust thermostat
2 Replace thermostat
3 Replace coil or solenoid
4 Replace cabinet switch
S Reset overload for beater motor See pg 42 unit does not operate
Cabinet too COld
Machine runs continually and Product continues to get colder
Compressor operates only when dispensing
Unit runs conMuously Product does nol reach 180 F temperature
6 Door sWitch defectIVe
1 Cabinet thermostat setting too low
2 Defective thermostat
3 Cabinet solenoid stuck open
4 Cabinet expansion valve set too low
1 Plunger switch out of adjustshyment
2 Su ction pressure too low
3 Defective plunger switch
4 Plunger switch rod engaged
5 Faulty time delay relay
6 Starter or relay contacts stuck
7 Faulty thermostat or bulb not deep enough in well
6 Replace door SWitch
1 Adjust thermostat
2 Replace thermostat
3 Replace solenoid
4 Adjust cabinet expansion valve (See pg 15)
1 Adjust plunger switch
2 Adjust expansion valve and check freon charge
3 Replace plunger switch
4 Close plunger completely
5 Replace time delay relay
I 6 Check contacts i
7 Check bulb location or replace thermostat
1 Cylinder themostat setting 1 Adjust thermostat or replace too high or thermostat deshyfective
1 Trouble in compressor I condensing system
2 ExpanSion valve setiing is too high
3 Low on refrigeranl
1 See Trouble-Shooling-CompressorI Condensing circuit
2 Adjust expansion valve
3 Check and repair leak and recharge
1
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE SLUSHbull
43
44
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Dispensed product too soft (Product temperature above 21 0 F)
1 Automatic expansion yalve incorrectly set or erratic in operation
-2 Leak in refrigeration system
resulting in little or no refrigeration
1 Adjust or replace expanSion valve
2 Pump down system or remove refrigerant charge repair leak evacuate and recharge
3 Excessive oil in system 3 Drain compressor to proper oil leyel pump down and flush system
4 Thermostat set too high taulty
or 4 Adiust thermostat or replace
Product dispenses slOWly out dispensing head
1 Reverse rotation 1 Change rotation to clockshywise from front of freezer
2 Dispensing speed adjustshyment boll too far down
2 Adjust bolt upward
3 Pum p problem 3 See pump Trouble-Shooting chart
4 Product too cold 4 See dispensed product too hard pg42
TROUBLE-SHOOTING CHART COMPRESSORICONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor will not start -hums intermittently (cycling on oyerload)
1 Improperly wired
2 Low line Yoltage
3 Open starting capacitor (single phase only)
4 High discharge pressure
1 Check wiring against diagram
2 Ask power company to increase YOltage to not less than 10 below nameplate rating or install transformer Check for inadequate wire size
3 Replace starting capacitor
4 CheCK water regulating valve setting Check water or air condenser and clean if necessary Make sure disshycharge shut-oft valve is open
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor starts but remains 1 Low line voltage 1 Ask power company to in start windings increase voltage to not less (Single phase only) than 10 below nameplate
rating or install transrormer
2 Improperly wired 2 Check wiring against drawing Check wire size
3 Running capacitor shorted 3 Check by disconnecting running capacitor
4 Starting capacitor weak 4 Check capacitor replace
5 High disCharge pressure 5 Check water regulating valve check water or air condenser and clean il necessary Check discharge shut-off valve
Starter burned out 1 Low line voltage 1 Ask power company to inshycrease voltage to not less than 10 below nameplate rating or install transformer
2 Excessive line voltage 2 Ask power company to reduce voltage to maximum of 10 over nameplate rating
Starting capacitors burn out 1 Voltage 100 low 1 Ask power company to (Single phase only) increase voltage to not less
than 10 below nameplate rating or install translonmer
2 Improper capacitor 2 Replace capacitor with properly rated capacitor as listed in manual
Running capacitors burn out 1 Excessive line voltage 1 Ask power company to reshy(Single phase only) duce line voltage to not more
than 10 above rating 01 motor
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
45
46
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Unit operates long or continuously
1 Shortage of gas
2 Dirty condenser
3 Moisture in system
4 Compressor failing
1 Repair leak and recharge
2 Clean condenser
3 Evacuate and recharge system
4 Check compressor lor proper pressures If inadequate replace compressor
Head pressure too high 1 Refrigerant overcharge
2 Air in system
3 Dirty condenser (air cooled)
4 Unit location too warm (air cooled)
5 Restricted water cooled condenser
6 Water turned off or defective
1 Purge system
2 Purge system evacuate and recharge
3 Clean condenser
4 Relocate unIt away from restriction Place nothing against back or on top of unit
5 Clean or replace condenser
6 Turn on water Or replace water regulating valve regulating valve
Head pressure too low 1 Shortage 01 refrigerant 1 Repair leak and recharge
2 Water regulating valve open 2 Adjust regulating valve too wide
Water 1I0wing through water 1 Water regulating valve 1 Replace water regulating valve waste line when unit is not in operation
defective
Noisy compressor 1 Tubing raUle 1 Bend tubes away from contact
NOTE Refer to warranty card prior to compressor replacement
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING DPR PUMP
TROUBLE PROBABLE CAUSE REMEDY
Pump will not run 1 Pump cover removed 1 Install pump cover
2 Pressure switch actuating 2 Free bulton-check spring and
bulton stuck open (in) pressure switch alignment
3 Pressure switch burned out 3 Replace pressure switch
4 Starting switch in motor bad 4 Install new starting switch
5 Motor burned out 5 Replace motor
6 Circuit breaker kicked out 6 Allow to re- set Replace it or faulty circuit breaker will not
automatically re-set
Motor runs-cam drive plate 1 Loose cam drive plate 1 Tighten set screw in cam will not turn drive plate Check woodruff key
2 Gear stripped 2 Replace gear
Pump will not shut off Mix 1 Pressure swilch actuating 1 Free button-check pressure shoots out pressure relief bulton stuck closed (out) switch alignment
2 Pressure switch stuck in 2 Replace pressure switch closed position
3 Pressure switch assy out 3 Using pressure gauge adjust of adjustment pressure
4 Dirty or plugged diaphragm 4 Disassemble and clean housing (Ref 42) housing
5 Defective O-Ring on 5 Replace O-Ring pressure relief piston
Pump will not prime 1 Insufficient supply of mix 1 Replenish mix supply
2 Piston O-ring defective-no 2 Replace piston O-Ring and suction lubricate
3 Washer valve not sealing 3 Replace washer valve DO NOT LUBRICATE
Pump primes No pressure in 1 Sleeve (Rei 29) not sealing 1 Replace sleeve DO NOT cylinder properly LUBRICATE
2 Loose hose connection on 2 Install or tighten hose clamp pump valve housing (Ref 27)
Mix shoots out Of air intake line 1 Washer valve (Ref 25) 1 Replace washer valve-DO not sealing properly NOT LUBRICATE
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOfT SERVE bull SHAKE bull SLUSH
47
48
TROUBLE-SHOOTING DPR PUMP
Too much air overrun too high-popping problems
Product dispenses slowly out of disPenSing head
1 Air meter too large (Ref 45)
2 Air leak befween mix conshytainer and mix inlet
3 Air line hose crackedshysucking air (Ref 44)
4 Pump pressure too lowshycylinder not full
1 Pump pressure too low
2 PrOduct too cold
3 Low overrun
Diaphragm housing leaking mix 1 Diaphragm housing loose
2 Diaphragm defective
Piston drive assy noisy 1 Bushing bearing worn
2 Defective gear in gear motor
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SIfAKE bull SLUSH
REMEDY
1 Replace washer valve-DO NOT LUBRICATE
2 Install clamp on hose
1 Replace O-Ring and LUBRIshyCATE
1 Clean or replace air meter
2 Replace tube
1 Install smaller air meier
2 Repair as needed
3 Replace air line hose
4 Using pressure gauge adjust pressure switch
1 Using pressure gauge adjust pump pressure
2 Check product temperatureshyshould be about 18 F
3 Check meter-if plugged-clean
1 Tighten wing nuls (Ref 41)
2 Replace diaphragm (Ref 43)
1 Replace bushing bearing (Ref 19)
2 Replace gear
TROUBLE
Mix inlet hose loses prime
Mix on top of piston
PROBABLE CAUSE
1 Washer valve (Ref 25) not sealing properly
2 Mix inlet hose loose
1 Piston O-Ring leaking (Ref 22)
No Air (Overrun) 11 Ai r meter plugged (Ref I 45)
2 Curved air tube pinched
--
DPR PUMP aI
PART NO 199019(i) PART NO 199020 reg DIAPHRAGM RUBBER SLEEVE
PART NO159295 PART NO 159282reg O-RING O-RING0
PART NO 160581reg O-RING
o PART NO PART NO
PART NO199011() 160611(8) 160582 WASHER VALVE O-RING O-RING
PISTON
cJ
DIAPHRAGM HOUSING
CYLINDER
VALVE HOUSIN6 ASSEMBLY
PUUPOUTLET
DRAIN PORT
I PHNO309-755-4553 O-RING CHART HCDUKEampSONINC I
1 I84Z08 SOFT SERVE DISPENSING HEADS I
o PART NO 1605620
PAR~159--1b
PART NO PART NO 1605841 59295()
I PHNO 309-755-4553 O-R ING CHART HCDUKEampSONINC I
- Cover
- Table of Contents
- Safety
- Uncrating amp Inspection13
- Explanation of Electrical Controls
- Operation of Machine
- General Information
- Maintenance amp Adjustment
- Parts Breakdowns
- Trouble-Shooting Charts
- O-ring Charts
-
14
GENERAL INFORMATION OVERRUN ADJUSTMENT
The overrun on your CAB machine equipped with a DPR pump is regulated by the air meter (Item 45-pump parts breakdown) You are supplied with three air metering plugs each containing a different size orifice The smaller the hole the lower the overrun The larger the hole the higher the overrun The orifice or hole in this air meter must be open at all times It is the only source of air into the freezing cylinder Check this daily
The mix will be a determining factor as to the amount of overrun you will be able to achieve Some mixes will accept more air than others thus regulating the size of air meter you can use Test to see which air meter will give you the best overrun and the best tasting shake Run each air meter for one day until you make the determination You may have a slightly higher overrun when you first start up the machine When the machine has run long enough to dispense at least one full cylinder of product you will have the overrun that the machine wil hold the remainder of the day
ADJUSTING PUMP PRESSURE
Only to be performed by a qualified service technician
A WARNING
DISCONNECT MAIN POWER SUPPLY BEFORE REMOVING PANELS
NOTE The pump will not operate without the cover in place
The DPR Pump is controlled by pressure in the mix line acting on the diaphragm (Ref 43) As the pump fills the freezer cylinder with mix pressure builds causing the diaphragm to expand As the diaphragm expands it contacts the button (Ref 51) which in turn depresses the pump pressure switch (Ref 60) The pressure switch button moves inward until the switch is opened turning off the pump motor When product is drawn from the freezer the diaphragm closes the pump pressure switch allowing the pump motor to restart Pump pressure will check the same with air mix or water We suggest the pressure be checked with air pressure only
Step 1 - Remove the rear panel from machine and the pump electrical box cover (Ref 6)
Step 2 - Locate the pressure adjusting nut (Ref 59) Turn the adjusting nut clockwise to increase pressure or counterclockwise to decrease pressure Usually one half turn of the adjusting nut will raise or lower the pressure of the model DPR pump two (2) PSIG
Step 3 - Install a quality pressure gauge in the mix output line Turn main power supply and pump switch to ON pOSition Caution Electrical power present through entire machine Allow the pump to pressurize until it shuts off automatically Observe the gauge pressure reading and disconnect main power supply Repeat the adjustment steps 1 through 3 until the proper pressure is obtained (30 to 32 PSIG) Reinstall the electrical box cover and rear panel
NOTE Pressure tine must be at least 6 fI long in order to obtain an accurate reading
A Pressure Gauge PIN 112791 may be purchased from your local distributor
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
PRESSURE RELIEF ASSEMBLY
The model DPR Pump incorporates a self contained safety pressure relief system The parts included in this assembly are (Ref 30 through 39) Any discharge of mix through the hose (Ref 37) is an indication of excessive pump pressure For corrective action refer to the trouble shooting section of this manual
REFRIGERATION SETTINGS
A WARNING
DISCONNECT MAIN POWER SUPPLY BEFORE REMOVING PANELS
The CAB Soft Serve machine contains two types of temperature control devices the expansion valve and the thermostat (explained in Thermostat Section) The expansion valve meters the flow of refrigerant to the cylinder and must be set correctly to give you maximum production
To locate the expansion valve remove the side panel On the single head CAB machines remove the right side panel The double head machines will have an expansion valve behind both right and left side panels
The expansion valve should only be adjusted by a refrigeration technician with refrigeration test gauges connected to the compressor Adjustments to the valve are shown in the following chart
REFRIGERATION SETTINGS MODEL TYPE OF COOUNG WATER AIR 917CAB 927CAB 957iAa I
Cyl Suction Pressure Rmiddot502 15middot17 (PSIG) 15-17 (PSIG)
9711CAS Cyl Suction Pressure R-502 15middot17 (PSIG) 15middot17 (PSIG)
ALL SOFT SERVE
CABS
Cab Suction Pressure Rmiddot502 Head Pressure Thermostat Differential
8middot10 (PSIG) 230-240 (PSIG)
17degmiddot22deg 7deg~8c
8-10 (PSIG) 230middot315 (PSIG)
17deg_22deg 7c -8deg
NOTE To correctly set the cylinder expansion valve the cabinet thermostat switch An must be in the OFF position (Full counterclockwise) with the compressor running
NOTE To correctly set the cabinet expansion valve the selector switch must be in the OFF position and the cabinet switch in the ON position (With the compressor running)
A refrigeration test gauge must be used when adjusting the suction pressure To reduce the suction pressure turn the adjustment screw on the expansion valve counterclockwise Do not turn more than 14 turn at a time Let the unit operate a sufficient length of time - at least two minutes - to properly read on the gauge the adjustment made
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline illinOIS 61244
SUPERIOR QUAUTY FREEZERS bull SOFt SERVE bull SHAKE bull SLUSH
15
16
THERMOSTATS
A WARNING
DISCONNECT MAIN POWER SUPPLY BEFORE REMOVING PANELS
Thermostat Au is the cabinet refrigeration thermostat The cabinet thermostat operates off of both the day and night switch operation to maintain 44 0 F or lower in the mix storage cabinet This thermostat can be adjusted by rotating the adjustment knob To set this thermostat colder turn the adjustment knob clockwise
CYLINDER THERMOSTAT
The cylinder thermostat is located behind the right side panel (on single head CABs) faCing the front of the machine On the double head CABs like the expansion valve a cylinder thermostat is located behind both the right and left side panels This control has two settings The first is the differential which should be set on 7-8deg F The other side of the control marked HIGH EVENT should be set between 17-220 F
The purpose of the cylinder thermostat is to maintain an 18deg F product during idle periods If the thermostat is set too cold and product is not drawn out of the machine a freeze up condition will result DO NOT run the product below 17deg F
NOTE The settings on the thermostat are ONLY to be used as a guide
For a correct adjustment a thermometer must be used to check the actual product temperature Each thermostat should be set in the field for the product being used Most of the time a temperature setting of between 18deg and 19deg F will maintain a satisfactory product Once the thermostat is set for the mix used it should require no further adjustment
MIg by H C DUKE amp SON INC 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH P~IIIIUSA
THERMOSTAT_________ Turn knob clockwise to make product colder
Differential adjustment
copy
COLDER ~ reg
copy5
2 6Igt
1 7 OFF
copy
THIS ASSEMBLY USED ON LEFT SIDE OF UNIT
RIGHT SIDE USES THIS ASSEMBLY WIO THERMOSTAT A (CAB THERMOSTAT)
MIg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
17
18
MAINTENANCE AND ADJUSTMENT
ONLY TO BE PERFORMED BY A QUALIFIED SERVICE TECHNICIAN
WARNING
MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFF POSITION AND THAT THE MAIN POWER SUPPLY IS DISCONNECTED BEFORE REMOVING PANELS
LUBRICATION INSTRUCTIONS
FAN MOTOR (Air Condenser) Lubricate annually with SAE 10 motor oil in the oil cups
CAUTION DO NOT OVER-LUBRICATE OVER-LUBRICATION CAN DAMAGE MOTOR
GEAR REDUCER The gear reducers are heavy duty worm-geared units manufactured to HC Duke specifications II traces 01 oil are found in the immediate area around the reducer repair the leak (usually an oil seal) and check the oil level When adding oil use only synthetic gear lube in the reducer
NOTE This is a special oil and will not mix with a petroleum base oil Contact your distributor when this oil is needed This oil should be changed at least once a year
OIL LEVEL PLUG
PROPER OIL LEVEL
OIL DRAIN USE SPECIAl PLUG OIL ONLY
USE SPECIAL LOILON=LY-- I
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH ~1U8A
MAINTENANCE AND ADJUSTMENT ONLY TO BE PERFORMED BY A QUALIFIED SERVICE TECHNICIAN
WARNING
MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFFA POSITION AND THAT THE MAIN POWER SUPPLY IS DISCONNECTED BEFORE REMOVING PANELS shy
BEATER MOTOR Beater motors are either single or three phase Capacitor starting is used on the single phase units The beater motor should be inspected and cleaned
WATER COOLED CONDENSER Depending on the condition of your water the condenser on your CAB machine may require cleaning from time to time Usually a restricted flow of water resulting in a high head pressure indicates a dirty condenser The condenser should be flushed out with an acid solution by a qualified service technician
AIR COOLED CONDENSERS At least once a month the face area of the condenser should be inspected for accumulation of dirt and dust Surface dust and dirt can usually be removed with a stiff brush andor vacuum cleaner After brushing hold a light between the fan blades and look through the condenser from the opposite side This procedure will locate those areas where accumulated dirt has lodged between the condenser fins To clean these areas obtain a small tank of nitrogen or C02 with a needle control valve or pressure regulator with a small hose attached and proceed as follows
(1) Place a damp towel or cloth over the face area of the condenser
(2) Open the control valve or regulator on the tank releasing pressure to the coil from the back side cleaning the condenser
(3) Check the condenser periodically with the light and continue the treatment until the fins are clean
For maximum performance replace all worn O-Rings Seals Blades etc
CAUTION USE ORIGINAL OR AUTHORIZED REPLACEMENT PARTS ONLY WITH THIS FREEZER
Mig by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline illinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
19
20
PULLEY ALIGNMENT AND BELT TENSION ONLY TO BE PERFORMED BY A QUALIFIED SERVICE TECHNICIAN
WARNING
A MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFF POSITION AND THAT THE MAIN POWER SUPPLY IS DISCONNECTED
Remove the side panels to expose the pulleys and belts
Check the alignment of the beater motor pulley and gear reducer pulley by placing a straight edge across the faces of the two pulleys If the pulleys are not aligned adjust as necessary until proper alignment is obtained
Depress the belts with a finger at a point midway between the two pulleys When properly adjusted the belts should depress 12 from its normal position with approximately 5 pounds of pressure If the belts are too tight or too loose adjust as necessary until proper belt deflection is obtained Loosen four (4) bolts which hold the motor mounting plate to the frame With these loose adjust tension bolt in or out as required to obtain proper belt tension Retighten bolts
BELTS
Periodically inspect the belts If they are worn excessively replace both belts For best results it is advisable to replace both belts as they are manufactured in matched sets
SCRAPER BLADES
NOTE Be sure to purge all of the sanitizer from the mix system before operating the freezer (see page 12) Failure to completely remove sanitizer or water trom the freezing cylinder before placing the machine in the Automatic position may cause blade breakage and damage the freezer
o o
NEW BlADE WORN BLADE
Replace blades if worn 316 or more
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
END PLAY FOR BEATER DRIVE COUPLING
It is very important that the drive coupling located on the gear reducer be set properly Referring to the Drive Coupling Illustration the following procedure should be followed in setting the end play
WARNING
MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFF POSITION AND THAT THE ELECTRICAL POWER TO THE MACHINE IS DISCONNECTED SO THAT THE UNIT WILL NOT OPERATE
------
DRIVE COUPLING ILLUSTRATION
REF DESCRIPTION REF DESCRIPTION 1 Gear Reducer 6 Reducer Mounting Plate 2 Beater Shaft 7 Set Screws 3 Shaft Seal 8 Bolt Gear Reducer 4 Drive Coupling 9 Bolt Reducer Mounting Plate 5 Spacer 10 Key
11 Output Shaft
Improper drive coupling spacing will damage the beater shaft dispensing head and drive coupling When checking end play settings or replacing a coupling proceed as follows
REMOVING COUPLING
WARNING
DISCONNECT MAIN POWER SUPPLY
Mig by H C DUKE amp SON INC bull 2116 Eighth Allenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SO SERVE bull SHAKE bull SLUSH
21
22
(1) Remove Beater Shaft (Ref 2)
(2) Remove both drive belts (not shown)
(3) Remove gear reducer bolts (Ref 8) Six (6) bolts are located around the face of the reducer
NOTE Remove the top bolt last holding the bottom of the reducer as you do so
(4) Remove the gear reducer (Ref 1) and place-on table or bench
(5) Replace two (2) bolts (Ref 8) one (1) at the top and one (1) at the bottom so that the reducer cover will not come off while the coupling is changed
(6) Loosen the four (4) set screws (Ref 7) and remove the drive coupling (Ref 4) Should the coupling be stuck tight to the ouput shaft lightly tap the coupling from the back with a hammer and bar Sometimes due to age this coupling will stick so tight it will have to be removed with a pulley removing tool or a wheel puller
(7) Remove the key (Ref 10)
INSTALLING THE NEW COUPLING
(1) Clean gear reducer output shaft (Ref 11) with fine emery cloth and slide the new drive coupling on the reducer shaft The coupling should slide on the shaft all the way without the key If the coupling doesnt slide completely on check both coupling and reducer shaft for burrs When a smooth sliding fit is achieved remove coupling and proceed with final assembly
(2) Place key (Ref 10) in keyway slot on the reducer output shaft Keep the key flush with the front end of the output shaft (Ref 11)
(3) Slide the coupling (Ref 4) on the output shaft until it bottoms out on the shaft Leave the four (4) set screws loose as the coupling will have to be adjusted
(4) Remove the two (2) bolts added in preceding Step 5
(5) Place one (1) gear reducer bolt (Ref 8) in the top hole of the cylinder mounting plate
(6) Insert gear reducer into cylinder mounting plate and start top bolt (Ref 8) Do nol tighten completely Now insert the other bolts one at a time When all bolts are in tighten each boll
NOTE Due to very close tolerance between the gear reducer and cylinder mounting plate no alignment is required when Installing the reducer When the reducer bolts are tightened the reducer will seH-align with the cylinder
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
(7) Insert the beater shaft (Ref 2) with the shaft seal and blades into the cylinder and engage beater shaft in the drive coupling Place bushing on front of beater shaft
(8) Tape a dime (10 cents) to the back of the dispensing head in the very center at the point where the beater shaft touches the dispensing head The dime is used to acquire the proper end play setting on the drive coupling which is approximately 332
(9) Place the dispensing head into the cylinder and tighten with the hand knobs Important make sure hand knobs are tight and head is against the end of the cylinder tube
(10) Slide the drive coupling (Ref 4) forward until it is tight against the beater shaft and lock into place the four (4) set screws (Ref n
(11) Remove the dime from the back of the dispensing head
(12) Replace the drive belts
(13) Turn on electrical power
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
23
PANEL BREAKDOWN - 917CAB
~--~
3
REF PART No 1A 114544 1B 112991 2A 136075 2B 136102
3A 137027 3A 137028
3A 136105 3B 136103
3B 134817 4 134818
4 136101 5A 114780
5A 113570 5B 112967
6 112960 7 133291
24 A 917CAB only
I
dJ
DESCRIPTION Frame ssmiddoty Frame ASsmiddoty Lower Side Panel Lower Side Panel LH Side Panel RH Side Panel Upper Side Panel Upper Side Panel Upper Side Panel Rear Panel Rear Panel Top Cover ASsmiddoty Top Cover ASsmiddoty Top Cover ASsmiddoty Filler Panel ASsmiddoty Top Filler Strip
B bull 44 CAB only
~
[At 16 lt0
REF 8
9 10 11 12 12A 13
14 15 16 16A
Air Cooled only
PART No DESCRIPTION 132687 Dispense Panel 134247-01 Dispense Panel Cab-W
Drip Tray (See Pg 35) 114260-01 Door Assmiddoty wIHinges 132444-01 Left Hand Filler Strip 162045 Upper Hinge 162052 Spring LH 162046 Lower Hinge 160026 Screw 160020 Bolt 160139 Washer 110205 Syrup Jar Enclosure 160563-01 Door Gasket 01-Groove) 159174 Drip Tray Button 160293 Clip for Button
Water Cooled only
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
~~
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)
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REF PART No DESCRIPTION REF PART No DESCRIPTION 1 114538 Frame Assy 10 162045 bull Upper Hinge 2 136289 Side Panel LH lOA 162052 Spring LH 3 136313 Rear Panel 11 162046 Lower Hinge 4 114006 Top Panel AC llA 160026 Screw 4A 114428 Top Panel WC l1B 160020 Bolt 4B 114157 Top Panel AC Remote l1C 160139 Washer 5 113983 Front Panel Assy 927CAB 12 136216 Side Panel RH 5A 113985 Front Panel Assy 957cAB 13 160563 Door Gasket (V-Groove) 6 130021 Rear Corner Channel RH 14 159174 Drip Tray Button 6A 135254 Rear Corner Channel LH 14A 160293 Clip for Button 7 137228 Dispensing Panel 162108 Stop Pin (Screw In) 8 Drip Tray (See Pg 35) 136199 Door Pull 9 114260 Door Assy wHinges
25
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
SOFT SERVE CAB ELECTRICAL BOX
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 Contactor (Order By Freezer 5 150463 Selector Switch
Serial Number) 6 159235 Toggle Switch (Pump) 2 Overload (Order By Freezer 7 150456 Spigot Switch
Serial Number) 7A 136124 Button - Spigot Switch 2A Heater Coil (Order By Freezer 7B 162302 Spring - Spigot Switch
Serial Number) 8 150553 Pilot Light - Amber 3 Starter (Order By Freezer 9 150552 Pilot Light - Red
Serial Number) 10 161026 Thermometer (Not Shown) 4 150208 Timer
26
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Pointed u
- - --- -
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prifllcl If USA
In-
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SOFT-SERVE - SINGLE HEAD CAB
REF PART No 1 151351
2 3 4 5 6 151044
151052 7
8 155039 9 155400 10 155117
11 151084
12A 159021 13 155401 13A 155423 14 155403 15 155422
16 154976 16 154975 17 159203 18 155051 19 112901
155410 20 155044
151348
DESCRIPTION Capacitor Relay Assembly (single phase)
150247 Start Capacitor
150249 Run Capacitor 150245 Relay Motor Capacitors (order by freezer serial no) Gear Reducer (see gear reducer breakdown page 36) Driven Pulley (order by freezer serial no) Belt (order by freezer serial no) Motor 1-phase 230 volt Motor 3-phase 208230 volt Driver Pulley (order by freezer serial no)
Water Condenser Automatic Expansion Valve (Cylinder) Air Condenser
Condenser Fan Motor
Condenser Fan Blade High Pressure Cut-Out shyHigh Pressure Cut-Out shyLow Pressure Cut-Out Solenoid Valve
Compressor 230160
AC WC
Compressor 208-230360 Sight Glass Drier (38) Receiver Tank Assembly Water Valve (not shown) Service Valve Compressor Mounting Kit
Note I) lt0 For All 50-Cycle Freezers Order By Freezer Serial Number
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Printad I usA
30
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w gta w en u o en
SOFT-SERVE - DOUBLE CAB - WATER COOLED REF PART No DESCRIPTION 1 155026 Water Condenser (B-side) 1 A 155039 Water Condenser (A-side) 2 159203 Sight Glass 3 155051 Drier (38) 4 155400 Automatic Expansion Valve (Cylinder) 5 Gear Reducer (see gear reducer breakdown page 36) 6 155410 Water Valve 7 155423 High Pressure Cut-Out 8 155403 Low Pressure Cut-Out 9 154976 Compressor 230160
151351 Capacitor Relay Assembly (Single Phase) 150247 Start Capacitor 150249 Run Capacitor 150245 Relay
9A 154975 Compressor 208-230360~-11 NOT USED ON THIS MODEL 12 155442 Low Temp Control 13 Driven Pulley (order by freezer serial no) 14 Belt (order by freezer serial no) 15 Driver Pulley (order by freezer serial no) 16 155422 Solenoid Valve 17 151044 Motor 1 phase 230 volt 17A 151052 Motor 3 phase 208230 volt 18 Motor Capacitors single phase only (order by freezer serial no)
Note For All 50-Cycle Freezers Order By Freezer Serial Number
cgt
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH _InU5A
32
c W J o o o -a oCt
aI oCt o W I m ) o c w gta w Ch t--LL o Ch
SOFTmiddotSERVE bull DOUBLE CAB - AIR COOLED REF PART No 1 155120 2 159020 3 151080 4 155400 5 6 159203 7 155051 8 112901 9 151044 9A 151052 10 11 12 14 154976
14A 154975 15 155401 16 155403 17 155443 18 155442 19
21 155422
DESCRIPTION Condenser Fan Blade Fan Motor Automatic Expansion Valve (Cylinder) Reducer (see gear reducer breakdown page 36) Sight Glass Drier Receiver Assembly Motor 1-Phase 230 Volt Motor 3-Phase 208230 Volt Driven Pulley (order by freezer serial no) Belt (ordr by freezer serial no) Driver Pulley (order by freezer serial no) Compressor 230160 151351 Capacitor Relay Assembly (Single Phase)
150247 Start Capacitor 150249 Run Capacitor 150245 Relay
Compressor 208-230360 High Pressure Cut-Out Low Pressure Cut-Out Cabinet Thermostat Low Temp Thermostat NOT USED ON THIS MODEL Motor Capacitors single phase only (order by freezer serial no) Solenoid Valve
Note For All 50-Cycle Freezers Order By Freezer Serial Number
Vl Vl
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prinled In USA
CAB PARTS BREAKDOWN
REF PART No DESCRIPTION PART No DESCRIPTION 1 155109 Cabinet Coil 136297 Condensate Pan (Not Shown) 1A 155113 Motor Cabinet Fan 196092 Mix Tank 7-12 Gal 1B 155099 Fan Blade Cabinet Coil 113997 Front Lid Mix Container
7-12 Gal 136248-01 Rear Lid Mix Cont 7-12 Gal
10 155416 CAB Automatic Expansion 130092 Mix Tube Valve 196028 Mix Tank 10 Gal
137119 Probe 11 -1 4 shy1E 155114 Fan Grill amp Bracket 7-12 Gal Container 1F 155116 Knob 137119-01 Probe 10-34 shy2 113898 DPR Pump Less Motor 7-12 amp 10
(see pump breakdown Gal Container pg 38) 137119-02 Probe 10-14 shy
3 196061 Mix Hose (sold by the foot) 10 Gal Container 4 150416 Door Switch 137120 Base Probe Mtg 4A 114630 Actuator Door Switch 160500 O-Ring
(Not Shown) 114572 Hose Clamp (Not Shown) 5 150527 Retractable Cordset 34
MIg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prlmd UsA
MERCHANDISING ASSY
PART No 115108 115107
PART No
196107-01 196108-01 114610 114608 115132 199030
PART No 162105 162106 112978 158004 158021 158022 158078 158000 158056 158000A 158014 158014A 161000 158049
DESCRIPTION 2S Merchandiser-927-957-978CAB 24 Merchandiser-917CAB
DRIP TRAY
DESCRIPTION
24 Drip Tray-917CAB 26- Drip Tray-927-957-978CAB 24 Tray Insert-917CAD 26 Tray Insert-978CAB-927CAB 26 Tray Insert-957CAB Rubber Bumper (only)
DESCRIPTION Caster With Brake Caster Without Brake Leg-6 4 Cylinder Brush Mix Hose Brush 58 Dia w6 Ft Handle 14 Pump Brush Drain Tube Brush Petrol Gel (12 tube carton) Petrol Gel (6 tube carton) Pe1rol Gel (per tube) Stera Sheen (per case) Stera Sheen (per jar) Pocket Thermometer 1 Dial Z32 Overrun Scale
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SNAKE bull SLUSH
35
36
GEAR REDUCERS Order By Freezer Serial Number
Model 3 CB
153345 5-1 Ratio B side 153004 High Speed Cup ~ (2 ea required) 153005 High Speed Bearing (2 ea required) 153008 Slow Speed Cup (2 ea required) 153009 Slow Speed Bearing (2 ea required) 153052 Slow Speed Seal (2 ea required) 153054 High Speed Seal (2 ea required) 153313 Brass Gear 5-1 Ratio 153336 Slow Speed Shaft Only 5-1 Ratio 153316 Worm Gear On Shaft 5-1 Ratio 114873 Gasket Set
Model 4 CB
153342 10-1 Ratio A side 153343 10-1 Ratio B side
153014 High Speed Cup (2 ea required) 153015 High Speed Bearing (2 ea required) 153011 Slow Speed Cup (2 ea required) 153012 Slow Speed Bearing (2 ea required) 153051 Slow Speed Seal (2 ea required) 153053 High Speed Seal (2 ea required) 153349 Brass Gear 10-1 Ratio 153339 Slow Speed Shaft OnIy 10-1 Ratio 153347 Worm Gear on Shaft 10-1 Ratio 114874 Gasket Set
Winlwin Model
153341 Wintwin 10-1 Ratio A and B Side
153014 High Speed Cup (2 ea required) 153015 High Speed Bearing (2 ea required) 153011 Slow Speed Cup (2 ea required) 153012 Slow Speed Bearing (2 ea required) 153051 Slow Speed Seal (2 ea required) 153053 High Speed Seal (2 ea required) 153349 Brass Gear 153350 Slow Speed Shaft Only 153348 Worm Gear on Shaft 11 4874 Gasket Set
158055 Gear Reducer OU 51001
Drive Coupling (Order By Machine Serial Number)
Mfg by H C DUKE amp SON INC bull 2115 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
917 amp 927 Beater Shaft Assembly
957 Beater Shaft
Item Part No Description
1 196079 Bushing-Cylinder 2 114752 Beater-Assy Long (Shaft) 3 137334 Blade-Scraper Soft Serve 4- 160500 O-Ring (Shaft Seal) 5- 133098 Bushing (Washer-Shaft Seal) 6 160557 Seal-Beater Shaft
-Items 4-6 111875 Seal-Assy Shaft (Complete)
31
1 113438 2 196079 3 137334 4- 160500 5- 133098 6 160557
-Items 4-6 111875
Shaft-Assy Beater Bushing-Cylinder Blade-Scraper O-ring (Shaft Seal) Washer-Shaft Seal (Bushing) Seal-Beater Shaft (Cup)
Seal-Assy Shaft (Complete)
ao
DISPENSING HEAD
16
r
Q
--~
-----_
REF PART No DESCRIPTION Tl3o 6 119928- Door Assembly shy Complete (Items 7-14) 11637- 7 196688 Door shy Less Parts
a 134921 Spigot shy Less Extension 9 134922 Handle Extension shy Spigot
10 162624 Handle 11 159295 OmiddotRings shy Spigot (Lots of 5)12 159309 O-ring shy 4 - Door 13 196066 Air Relief Screw 14 160621 a-Ring shy Air Relief Screw (Lots of 5)15 136126 Rod - Spigot Switch shy 917 8 927 16 136798 HMdKnob
38
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illmols 61244
SUPERIOR QUAUlY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
Duke Soft Serve Freezer Models 917R and 927RN
5 -______
7
6
UPDATEDDispense Head Assembly
Item Part No
115130 1 116321 2 160583 3 115129 4 160562 5 136126 6 134921 SA 162624 68 134922 7 159295 8 160584 9 162625 9A 114341 10 196185 10A 137870 108 136713
116410
Includes items 1-4 6-8
Description
Head-Assy Dispense (Complete) Head-Assy wActualor O-ring (Head-4-inch) Bleeder-Assy (Air Relief Plug) O-ring (Bleeder-Assy) Rod-Spigot Switch Spigot-long Single Handle-Black Tapered Handle-Spigot (Stainless Steel) O-ring (Spigot) O-ring (Extension) Knob-Hand Stud-Assy Cylinder 1-15116 inch (not shown) Nouie-Slar Adapter (accessory) Adapter-Yogurt Nozzle (not shown) Extension-Spigot (accessory-cake not shown) Kit-Dispense Head Switch
( Use only original or authorized replacement parts with this freezer )
DISPENSING HEAD
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH uu
REF PART No 114765
1 196082 2 114313 3 137018 5 136618 6 162626 8 134499 9 162625
10 115129 11 136794 12 159309 13 159295 14 160562 15 136713 16 160584
DESCRIPTION Door Assy-Complete Door-Less Parts Spigot Assy-Side Spigot Only-Center Extension Only-Center Handle Stud-Handle Stop Hand Knob Air Re1ief-Assy Rod-Spigot Switch O-Ring-4-Door O-Ring-Spigot O-Ring-Air Relief Extension-Spigot a-Ring
39
40
PUMP MOTOR AND HOUSING ASSEMBLY SAFETY SWITCH ASSEMBLY
PRESSURE SWITCH ASSEMBLY ijreg~
I
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH IIIUaA
CAB DPR PUMP BREAKDOWN
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 196091 Pump Base 46 114009 Pump Cover 2 136088 Pump Support 47 113464 Base Bracket Assembly 3 150784 Strain Relief Bushing 48 135725 Stud 1-78 4 Power Cord 49 160131 516 Flatwasher 5 160075 10-24 x 38 Screw 50 160293 Speed Clip 6 135416 Cover Electric Box 51 135724 Button 7 160141 14 Lockwasher 52 160140 10 Lockwasher 8 160491 14-20 x 34 Socket Screw 53 135726 Stud 3 9 113497 Motor Cord 18-3 SJT 54 160109 10-24 Hex Nut 10 151127 Motor 40 RPM Soft Serve 55 135729 Switch Actuator 11 160023 14-20 x 1 Screw 56 135731 Stop - Max Pressure 12 153317 Half Moon Key 57 162315 Spring - Soft Serve 13 112925 Cam Drive Plate Assembly 58 160138 10 Flat Washer 14 160495 14-20 x 14 Set Screw 59 160304 10-24 Stop Nut 15 160369 Pin 60 150456 Pressure Switch 16 134614 Swing Clamp 61 135744 Insulator - Fiber 17 134521 Adjusting Clamp 62 160381 6-32 x 1 Socket Screw 18 160488 Thumb Screw 63 160393 6 Flatwasher 19 134604 Bearing Bushing 64 160146 6 Lockwasher 20 134602 Connecting Rod 65 160309 6-32 Hex Nut 21 134601 Piston 66 160006 6-32 x 14 Screw 22 159295 O-Ring 67 160001 8-32 x 38 Screw 23 134603 Wrist Pin 68 160470 8 Lockwasher 24 136089 Cylinder 69 150481 Circuit Breaker 25 199011 Washer Valve 70 135727 Switch Bracket 26 159282 O-Ring 71 136311 Spacer - Cover Switch 27 113839 Pump Valve Housing 72 160028 Truss Head Screw
Assembly (Metal) 14-20 x 34 SST 28 160582 O-Ring 73 160141 Lockwasher 14 29 199020 Sleeve Rubber 74 160104 Hex Nut 14-20 30 135793 Retainer Clip 75 136312 Button Guard 31 135791 Adapter Hose Outlet 76 160020 Hex Hd Cap Screw 32 160581 O-Ring 14-20 x 1 SST 33 135790 Piston 77 113869 Switch Bracket 34 162308 Spring Soft Serve 78 136110 Button Cover Switch 35 135792 Drain Port 79 162314 Spring 36 160611 O-Ring 80 150456 Switch Pump Safety 37 135896 Hose 24 81 135004 Switch Cover 38 160738 Hose Clamp 82 160296 Screw RH 39 136288 Keeper 6-32 x 1-14 40 160554 O-Ring 83 160146 Lockwasher 6 41 160368 Wing Nut Int Tooth 42 130054 Diaphragm Housing 84 160393 Flatwasher 6 43 199019 Diaphragm 85 160309 Hex Nut 6-32 44 196074 Air Tube-Curved 86 114572 Hose Clamp 45 163433 Air Meter - 20 87 160048 14-20 x 12 TRHM
(other sizes available) 88 160308 6-32 x 516 RDHM 89 114581 Circuit Breaker Bracket
Not Shown 90 163109 Stop Pivot 112791 DPR Pressure Gauge
41
Mfg by H C DUKE amp SON INC 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
42
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Unit does not operate 1 Fuse blown at main disconshy 1 Check fuse size check for low nect voltage if not within 10 of
nameplate rating install transformer or call power company
2 Beater motor out on overload 2 Press starter reset button and check for low voltage Check producllemperalure and overrun
3 Disconnected or broken wife 3 Check wiring and wire connecshyin electrical circuit lions repair or replace lead
wires as necessary
4 Faulty selector switch 4 Replace selector switch
5 Out on high pressure 5 Check for low waler supply or dirty air conden ser
6 Out on low pressure 6 Check limit control and freon charge
Compressor does not operate f Troubte in compressor con- I Refer to Trouble-Shootingshyor operates improperly densing circuit Compressor I Condensing
Circuit
2 Faulty capacitor assembly 2 Replace capaCitor assembly (Single phase only)
3 Faulty contactor 3 Replace contaclOr or pOints
Compressor operates but 1 Loose con neclion at motor 1 Tighten connection beater motor does not starter coil (electrical box)
2 Open starter coil 2 Replace coil
3 Faulty capacitor assembly 3 Replace capaCitor assembly (Single phase only)
Dispensed product too hard 1 Cylinder themostat erratic 1 Adjust thermo slat or replace or set too low
2 Faulty time delay relay 2 Replace time delay relay
3 Solenoid valve leaking 3 Replace solenoid valve
4 Low suction pressure 4 See chart on page 15 for adshyjustments
Leaking of mix from rear housshy 1 Damaged bealer shalt seal 1 Replace shaft seal or O-ring ing discharge tube to drip tray inside seal assy
Mig by H C DUKE amp SON INC bull 2116 Eighlh Avenue Easl Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Mix leaking at dispensing head 1 Faulty 4 O-Ring
2 Head not properly installed
1 Replace 4 O-Ring
2 Install head properly
Mix sours in cabinet 1 Cabinet thermostat setting too high
2 Cabinet thermostat detective
3 Cabinet solenoid valve deshyfective
4 Cabinet switch defective
5 Beater motor out on overshyload (cab side)
1 Adjust thermostat
2 Replace thermostat
3 Replace coil or solenoid
4 Replace cabinet switch
S Reset overload for beater motor See pg 42 unit does not operate
Cabinet too COld
Machine runs continually and Product continues to get colder
Compressor operates only when dispensing
Unit runs conMuously Product does nol reach 180 F temperature
6 Door sWitch defectIVe
1 Cabinet thermostat setting too low
2 Defective thermostat
3 Cabinet solenoid stuck open
4 Cabinet expansion valve set too low
1 Plunger switch out of adjustshyment
2 Su ction pressure too low
3 Defective plunger switch
4 Plunger switch rod engaged
5 Faulty time delay relay
6 Starter or relay contacts stuck
7 Faulty thermostat or bulb not deep enough in well
6 Replace door SWitch
1 Adjust thermostat
2 Replace thermostat
3 Replace solenoid
4 Adjust cabinet expansion valve (See pg 15)
1 Adjust plunger switch
2 Adjust expansion valve and check freon charge
3 Replace plunger switch
4 Close plunger completely
5 Replace time delay relay
I 6 Check contacts i
7 Check bulb location or replace thermostat
1 Cylinder themostat setting 1 Adjust thermostat or replace too high or thermostat deshyfective
1 Trouble in compressor I condensing system
2 ExpanSion valve setiing is too high
3 Low on refrigeranl
1 See Trouble-Shooling-CompressorI Condensing circuit
2 Adjust expansion valve
3 Check and repair leak and recharge
1
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE SLUSHbull
43
44
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Dispensed product too soft (Product temperature above 21 0 F)
1 Automatic expansion yalve incorrectly set or erratic in operation
-2 Leak in refrigeration system
resulting in little or no refrigeration
1 Adjust or replace expanSion valve
2 Pump down system or remove refrigerant charge repair leak evacuate and recharge
3 Excessive oil in system 3 Drain compressor to proper oil leyel pump down and flush system
4 Thermostat set too high taulty
or 4 Adiust thermostat or replace
Product dispenses slOWly out dispensing head
1 Reverse rotation 1 Change rotation to clockshywise from front of freezer
2 Dispensing speed adjustshyment boll too far down
2 Adjust bolt upward
3 Pum p problem 3 See pump Trouble-Shooting chart
4 Product too cold 4 See dispensed product too hard pg42
TROUBLE-SHOOTING CHART COMPRESSORICONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor will not start -hums intermittently (cycling on oyerload)
1 Improperly wired
2 Low line Yoltage
3 Open starting capacitor (single phase only)
4 High discharge pressure
1 Check wiring against diagram
2 Ask power company to increase YOltage to not less than 10 below nameplate rating or install transformer Check for inadequate wire size
3 Replace starting capacitor
4 CheCK water regulating valve setting Check water or air condenser and clean if necessary Make sure disshycharge shut-oft valve is open
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor starts but remains 1 Low line voltage 1 Ask power company to in start windings increase voltage to not less (Single phase only) than 10 below nameplate
rating or install transrormer
2 Improperly wired 2 Check wiring against drawing Check wire size
3 Running capacitor shorted 3 Check by disconnecting running capacitor
4 Starting capacitor weak 4 Check capacitor replace
5 High disCharge pressure 5 Check water regulating valve check water or air condenser and clean il necessary Check discharge shut-off valve
Starter burned out 1 Low line voltage 1 Ask power company to inshycrease voltage to not less than 10 below nameplate rating or install transformer
2 Excessive line voltage 2 Ask power company to reduce voltage to maximum of 10 over nameplate rating
Starting capacitors burn out 1 Voltage 100 low 1 Ask power company to (Single phase only) increase voltage to not less
than 10 below nameplate rating or install translonmer
2 Improper capacitor 2 Replace capacitor with properly rated capacitor as listed in manual
Running capacitors burn out 1 Excessive line voltage 1 Ask power company to reshy(Single phase only) duce line voltage to not more
than 10 above rating 01 motor
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
45
46
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Unit operates long or continuously
1 Shortage of gas
2 Dirty condenser
3 Moisture in system
4 Compressor failing
1 Repair leak and recharge
2 Clean condenser
3 Evacuate and recharge system
4 Check compressor lor proper pressures If inadequate replace compressor
Head pressure too high 1 Refrigerant overcharge
2 Air in system
3 Dirty condenser (air cooled)
4 Unit location too warm (air cooled)
5 Restricted water cooled condenser
6 Water turned off or defective
1 Purge system
2 Purge system evacuate and recharge
3 Clean condenser
4 Relocate unIt away from restriction Place nothing against back or on top of unit
5 Clean or replace condenser
6 Turn on water Or replace water regulating valve regulating valve
Head pressure too low 1 Shortage 01 refrigerant 1 Repair leak and recharge
2 Water regulating valve open 2 Adjust regulating valve too wide
Water 1I0wing through water 1 Water regulating valve 1 Replace water regulating valve waste line when unit is not in operation
defective
Noisy compressor 1 Tubing raUle 1 Bend tubes away from contact
NOTE Refer to warranty card prior to compressor replacement
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING DPR PUMP
TROUBLE PROBABLE CAUSE REMEDY
Pump will not run 1 Pump cover removed 1 Install pump cover
2 Pressure switch actuating 2 Free bulton-check spring and
bulton stuck open (in) pressure switch alignment
3 Pressure switch burned out 3 Replace pressure switch
4 Starting switch in motor bad 4 Install new starting switch
5 Motor burned out 5 Replace motor
6 Circuit breaker kicked out 6 Allow to re- set Replace it or faulty circuit breaker will not
automatically re-set
Motor runs-cam drive plate 1 Loose cam drive plate 1 Tighten set screw in cam will not turn drive plate Check woodruff key
2 Gear stripped 2 Replace gear
Pump will not shut off Mix 1 Pressure swilch actuating 1 Free button-check pressure shoots out pressure relief bulton stuck closed (out) switch alignment
2 Pressure switch stuck in 2 Replace pressure switch closed position
3 Pressure switch assy out 3 Using pressure gauge adjust of adjustment pressure
4 Dirty or plugged diaphragm 4 Disassemble and clean housing (Ref 42) housing
5 Defective O-Ring on 5 Replace O-Ring pressure relief piston
Pump will not prime 1 Insufficient supply of mix 1 Replenish mix supply
2 Piston O-ring defective-no 2 Replace piston O-Ring and suction lubricate
3 Washer valve not sealing 3 Replace washer valve DO NOT LUBRICATE
Pump primes No pressure in 1 Sleeve (Rei 29) not sealing 1 Replace sleeve DO NOT cylinder properly LUBRICATE
2 Loose hose connection on 2 Install or tighten hose clamp pump valve housing (Ref 27)
Mix shoots out Of air intake line 1 Washer valve (Ref 25) 1 Replace washer valve-DO not sealing properly NOT LUBRICATE
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOfT SERVE bull SHAKE bull SLUSH
47
48
TROUBLE-SHOOTING DPR PUMP
Too much air overrun too high-popping problems
Product dispenses slowly out of disPenSing head
1 Air meter too large (Ref 45)
2 Air leak befween mix conshytainer and mix inlet
3 Air line hose crackedshysucking air (Ref 44)
4 Pump pressure too lowshycylinder not full
1 Pump pressure too low
2 PrOduct too cold
3 Low overrun
Diaphragm housing leaking mix 1 Diaphragm housing loose
2 Diaphragm defective
Piston drive assy noisy 1 Bushing bearing worn
2 Defective gear in gear motor
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SIfAKE bull SLUSH
REMEDY
1 Replace washer valve-DO NOT LUBRICATE
2 Install clamp on hose
1 Replace O-Ring and LUBRIshyCATE
1 Clean or replace air meter
2 Replace tube
1 Install smaller air meier
2 Repair as needed
3 Replace air line hose
4 Using pressure gauge adjust pressure switch
1 Using pressure gauge adjust pump pressure
2 Check product temperatureshyshould be about 18 F
3 Check meter-if plugged-clean
1 Tighten wing nuls (Ref 41)
2 Replace diaphragm (Ref 43)
1 Replace bushing bearing (Ref 19)
2 Replace gear
TROUBLE
Mix inlet hose loses prime
Mix on top of piston
PROBABLE CAUSE
1 Washer valve (Ref 25) not sealing properly
2 Mix inlet hose loose
1 Piston O-Ring leaking (Ref 22)
No Air (Overrun) 11 Ai r meter plugged (Ref I 45)
2 Curved air tube pinched
--
DPR PUMP aI
PART NO 199019(i) PART NO 199020 reg DIAPHRAGM RUBBER SLEEVE
PART NO159295 PART NO 159282reg O-RING O-RING0
PART NO 160581reg O-RING
o PART NO PART NO
PART NO199011() 160611(8) 160582 WASHER VALVE O-RING O-RING
PISTON
cJ
DIAPHRAGM HOUSING
CYLINDER
VALVE HOUSIN6 ASSEMBLY
PUUPOUTLET
DRAIN PORT
I PHNO309-755-4553 O-RING CHART HCDUKEampSONINC I
1 I84Z08 SOFT SERVE DISPENSING HEADS I
o PART NO 1605620
PAR~159--1b
PART NO PART NO 1605841 59295()
I PHNO 309-755-4553 O-R ING CHART HCDUKEampSONINC I
- Cover
- Table of Contents
- Safety
- Uncrating amp Inspection13
- Explanation of Electrical Controls
- Operation of Machine
- General Information
- Maintenance amp Adjustment
- Parts Breakdowns
- Trouble-Shooting Charts
- O-ring Charts
-
PRESSURE RELIEF ASSEMBLY
The model DPR Pump incorporates a self contained safety pressure relief system The parts included in this assembly are (Ref 30 through 39) Any discharge of mix through the hose (Ref 37) is an indication of excessive pump pressure For corrective action refer to the trouble shooting section of this manual
REFRIGERATION SETTINGS
A WARNING
DISCONNECT MAIN POWER SUPPLY BEFORE REMOVING PANELS
The CAB Soft Serve machine contains two types of temperature control devices the expansion valve and the thermostat (explained in Thermostat Section) The expansion valve meters the flow of refrigerant to the cylinder and must be set correctly to give you maximum production
To locate the expansion valve remove the side panel On the single head CAB machines remove the right side panel The double head machines will have an expansion valve behind both right and left side panels
The expansion valve should only be adjusted by a refrigeration technician with refrigeration test gauges connected to the compressor Adjustments to the valve are shown in the following chart
REFRIGERATION SETTINGS MODEL TYPE OF COOUNG WATER AIR 917CAB 927CAB 957iAa I
Cyl Suction Pressure Rmiddot502 15middot17 (PSIG) 15-17 (PSIG)
9711CAS Cyl Suction Pressure R-502 15middot17 (PSIG) 15middot17 (PSIG)
ALL SOFT SERVE
CABS
Cab Suction Pressure Rmiddot502 Head Pressure Thermostat Differential
8middot10 (PSIG) 230-240 (PSIG)
17degmiddot22deg 7deg~8c
8-10 (PSIG) 230middot315 (PSIG)
17deg_22deg 7c -8deg
NOTE To correctly set the cylinder expansion valve the cabinet thermostat switch An must be in the OFF position (Full counterclockwise) with the compressor running
NOTE To correctly set the cabinet expansion valve the selector switch must be in the OFF position and the cabinet switch in the ON position (With the compressor running)
A refrigeration test gauge must be used when adjusting the suction pressure To reduce the suction pressure turn the adjustment screw on the expansion valve counterclockwise Do not turn more than 14 turn at a time Let the unit operate a sufficient length of time - at least two minutes - to properly read on the gauge the adjustment made
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline illinOIS 61244
SUPERIOR QUAUTY FREEZERS bull SOFt SERVE bull SHAKE bull SLUSH
15
16
THERMOSTATS
A WARNING
DISCONNECT MAIN POWER SUPPLY BEFORE REMOVING PANELS
Thermostat Au is the cabinet refrigeration thermostat The cabinet thermostat operates off of both the day and night switch operation to maintain 44 0 F or lower in the mix storage cabinet This thermostat can be adjusted by rotating the adjustment knob To set this thermostat colder turn the adjustment knob clockwise
CYLINDER THERMOSTAT
The cylinder thermostat is located behind the right side panel (on single head CABs) faCing the front of the machine On the double head CABs like the expansion valve a cylinder thermostat is located behind both the right and left side panels This control has two settings The first is the differential which should be set on 7-8deg F The other side of the control marked HIGH EVENT should be set between 17-220 F
The purpose of the cylinder thermostat is to maintain an 18deg F product during idle periods If the thermostat is set too cold and product is not drawn out of the machine a freeze up condition will result DO NOT run the product below 17deg F
NOTE The settings on the thermostat are ONLY to be used as a guide
For a correct adjustment a thermometer must be used to check the actual product temperature Each thermostat should be set in the field for the product being used Most of the time a temperature setting of between 18deg and 19deg F will maintain a satisfactory product Once the thermostat is set for the mix used it should require no further adjustment
MIg by H C DUKE amp SON INC 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH P~IIIIUSA
THERMOSTAT_________ Turn knob clockwise to make product colder
Differential adjustment
copy
COLDER ~ reg
copy5
2 6Igt
1 7 OFF
copy
THIS ASSEMBLY USED ON LEFT SIDE OF UNIT
RIGHT SIDE USES THIS ASSEMBLY WIO THERMOSTAT A (CAB THERMOSTAT)
MIg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
17
18
MAINTENANCE AND ADJUSTMENT
ONLY TO BE PERFORMED BY A QUALIFIED SERVICE TECHNICIAN
WARNING
MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFF POSITION AND THAT THE MAIN POWER SUPPLY IS DISCONNECTED BEFORE REMOVING PANELS
LUBRICATION INSTRUCTIONS
FAN MOTOR (Air Condenser) Lubricate annually with SAE 10 motor oil in the oil cups
CAUTION DO NOT OVER-LUBRICATE OVER-LUBRICATION CAN DAMAGE MOTOR
GEAR REDUCER The gear reducers are heavy duty worm-geared units manufactured to HC Duke specifications II traces 01 oil are found in the immediate area around the reducer repair the leak (usually an oil seal) and check the oil level When adding oil use only synthetic gear lube in the reducer
NOTE This is a special oil and will not mix with a petroleum base oil Contact your distributor when this oil is needed This oil should be changed at least once a year
OIL LEVEL PLUG
PROPER OIL LEVEL
OIL DRAIN USE SPECIAl PLUG OIL ONLY
USE SPECIAL LOILON=LY-- I
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH ~1U8A
MAINTENANCE AND ADJUSTMENT ONLY TO BE PERFORMED BY A QUALIFIED SERVICE TECHNICIAN
WARNING
MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFFA POSITION AND THAT THE MAIN POWER SUPPLY IS DISCONNECTED BEFORE REMOVING PANELS shy
BEATER MOTOR Beater motors are either single or three phase Capacitor starting is used on the single phase units The beater motor should be inspected and cleaned
WATER COOLED CONDENSER Depending on the condition of your water the condenser on your CAB machine may require cleaning from time to time Usually a restricted flow of water resulting in a high head pressure indicates a dirty condenser The condenser should be flushed out with an acid solution by a qualified service technician
AIR COOLED CONDENSERS At least once a month the face area of the condenser should be inspected for accumulation of dirt and dust Surface dust and dirt can usually be removed with a stiff brush andor vacuum cleaner After brushing hold a light between the fan blades and look through the condenser from the opposite side This procedure will locate those areas where accumulated dirt has lodged between the condenser fins To clean these areas obtain a small tank of nitrogen or C02 with a needle control valve or pressure regulator with a small hose attached and proceed as follows
(1) Place a damp towel or cloth over the face area of the condenser
(2) Open the control valve or regulator on the tank releasing pressure to the coil from the back side cleaning the condenser
(3) Check the condenser periodically with the light and continue the treatment until the fins are clean
For maximum performance replace all worn O-Rings Seals Blades etc
CAUTION USE ORIGINAL OR AUTHORIZED REPLACEMENT PARTS ONLY WITH THIS FREEZER
Mig by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline illinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
19
20
PULLEY ALIGNMENT AND BELT TENSION ONLY TO BE PERFORMED BY A QUALIFIED SERVICE TECHNICIAN
WARNING
A MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFF POSITION AND THAT THE MAIN POWER SUPPLY IS DISCONNECTED
Remove the side panels to expose the pulleys and belts
Check the alignment of the beater motor pulley and gear reducer pulley by placing a straight edge across the faces of the two pulleys If the pulleys are not aligned adjust as necessary until proper alignment is obtained
Depress the belts with a finger at a point midway between the two pulleys When properly adjusted the belts should depress 12 from its normal position with approximately 5 pounds of pressure If the belts are too tight or too loose adjust as necessary until proper belt deflection is obtained Loosen four (4) bolts which hold the motor mounting plate to the frame With these loose adjust tension bolt in or out as required to obtain proper belt tension Retighten bolts
BELTS
Periodically inspect the belts If they are worn excessively replace both belts For best results it is advisable to replace both belts as they are manufactured in matched sets
SCRAPER BLADES
NOTE Be sure to purge all of the sanitizer from the mix system before operating the freezer (see page 12) Failure to completely remove sanitizer or water trom the freezing cylinder before placing the machine in the Automatic position may cause blade breakage and damage the freezer
o o
NEW BlADE WORN BLADE
Replace blades if worn 316 or more
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
END PLAY FOR BEATER DRIVE COUPLING
It is very important that the drive coupling located on the gear reducer be set properly Referring to the Drive Coupling Illustration the following procedure should be followed in setting the end play
WARNING
MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFF POSITION AND THAT THE ELECTRICAL POWER TO THE MACHINE IS DISCONNECTED SO THAT THE UNIT WILL NOT OPERATE
------
DRIVE COUPLING ILLUSTRATION
REF DESCRIPTION REF DESCRIPTION 1 Gear Reducer 6 Reducer Mounting Plate 2 Beater Shaft 7 Set Screws 3 Shaft Seal 8 Bolt Gear Reducer 4 Drive Coupling 9 Bolt Reducer Mounting Plate 5 Spacer 10 Key
11 Output Shaft
Improper drive coupling spacing will damage the beater shaft dispensing head and drive coupling When checking end play settings or replacing a coupling proceed as follows
REMOVING COUPLING
WARNING
DISCONNECT MAIN POWER SUPPLY
Mig by H C DUKE amp SON INC bull 2116 Eighth Allenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SO SERVE bull SHAKE bull SLUSH
21
22
(1) Remove Beater Shaft (Ref 2)
(2) Remove both drive belts (not shown)
(3) Remove gear reducer bolts (Ref 8) Six (6) bolts are located around the face of the reducer
NOTE Remove the top bolt last holding the bottom of the reducer as you do so
(4) Remove the gear reducer (Ref 1) and place-on table or bench
(5) Replace two (2) bolts (Ref 8) one (1) at the top and one (1) at the bottom so that the reducer cover will not come off while the coupling is changed
(6) Loosen the four (4) set screws (Ref 7) and remove the drive coupling (Ref 4) Should the coupling be stuck tight to the ouput shaft lightly tap the coupling from the back with a hammer and bar Sometimes due to age this coupling will stick so tight it will have to be removed with a pulley removing tool or a wheel puller
(7) Remove the key (Ref 10)
INSTALLING THE NEW COUPLING
(1) Clean gear reducer output shaft (Ref 11) with fine emery cloth and slide the new drive coupling on the reducer shaft The coupling should slide on the shaft all the way without the key If the coupling doesnt slide completely on check both coupling and reducer shaft for burrs When a smooth sliding fit is achieved remove coupling and proceed with final assembly
(2) Place key (Ref 10) in keyway slot on the reducer output shaft Keep the key flush with the front end of the output shaft (Ref 11)
(3) Slide the coupling (Ref 4) on the output shaft until it bottoms out on the shaft Leave the four (4) set screws loose as the coupling will have to be adjusted
(4) Remove the two (2) bolts added in preceding Step 5
(5) Place one (1) gear reducer bolt (Ref 8) in the top hole of the cylinder mounting plate
(6) Insert gear reducer into cylinder mounting plate and start top bolt (Ref 8) Do nol tighten completely Now insert the other bolts one at a time When all bolts are in tighten each boll
NOTE Due to very close tolerance between the gear reducer and cylinder mounting plate no alignment is required when Installing the reducer When the reducer bolts are tightened the reducer will seH-align with the cylinder
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
(7) Insert the beater shaft (Ref 2) with the shaft seal and blades into the cylinder and engage beater shaft in the drive coupling Place bushing on front of beater shaft
(8) Tape a dime (10 cents) to the back of the dispensing head in the very center at the point where the beater shaft touches the dispensing head The dime is used to acquire the proper end play setting on the drive coupling which is approximately 332
(9) Place the dispensing head into the cylinder and tighten with the hand knobs Important make sure hand knobs are tight and head is against the end of the cylinder tube
(10) Slide the drive coupling (Ref 4) forward until it is tight against the beater shaft and lock into place the four (4) set screws (Ref n
(11) Remove the dime from the back of the dispensing head
(12) Replace the drive belts
(13) Turn on electrical power
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
23
PANEL BREAKDOWN - 917CAB
~--~
3
REF PART No 1A 114544 1B 112991 2A 136075 2B 136102
3A 137027 3A 137028
3A 136105 3B 136103
3B 134817 4 134818
4 136101 5A 114780
5A 113570 5B 112967
6 112960 7 133291
24 A 917CAB only
I
dJ
DESCRIPTION Frame ssmiddoty Frame ASsmiddoty Lower Side Panel Lower Side Panel LH Side Panel RH Side Panel Upper Side Panel Upper Side Panel Upper Side Panel Rear Panel Rear Panel Top Cover ASsmiddoty Top Cover ASsmiddoty Top Cover ASsmiddoty Filler Panel ASsmiddoty Top Filler Strip
B bull 44 CAB only
~
[At 16 lt0
REF 8
9 10 11 12 12A 13
14 15 16 16A
Air Cooled only
PART No DESCRIPTION 132687 Dispense Panel 134247-01 Dispense Panel Cab-W
Drip Tray (See Pg 35) 114260-01 Door Assmiddoty wIHinges 132444-01 Left Hand Filler Strip 162045 Upper Hinge 162052 Spring LH 162046 Lower Hinge 160026 Screw 160020 Bolt 160139 Washer 110205 Syrup Jar Enclosure 160563-01 Door Gasket 01-Groove) 159174 Drip Tray Button 160293 Clip for Button
Water Cooled only
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
~~
1 ~~o ~o
)
cp I
L~
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 114538 Frame Assy 10 162045 bull Upper Hinge 2 136289 Side Panel LH lOA 162052 Spring LH 3 136313 Rear Panel 11 162046 Lower Hinge 4 114006 Top Panel AC llA 160026 Screw 4A 114428 Top Panel WC l1B 160020 Bolt 4B 114157 Top Panel AC Remote l1C 160139 Washer 5 113983 Front Panel Assy 927CAB 12 136216 Side Panel RH 5A 113985 Front Panel Assy 957cAB 13 160563 Door Gasket (V-Groove) 6 130021 Rear Corner Channel RH 14 159174 Drip Tray Button 6A 135254 Rear Corner Channel LH 14A 160293 Clip for Button 7 137228 Dispensing Panel 162108 Stop Pin (Screw In) 8 Drip Tray (See Pg 35) 136199 Door Pull 9 114260 Door Assy wHinges
25
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
SOFT SERVE CAB ELECTRICAL BOX
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 Contactor (Order By Freezer 5 150463 Selector Switch
Serial Number) 6 159235 Toggle Switch (Pump) 2 Overload (Order By Freezer 7 150456 Spigot Switch
Serial Number) 7A 136124 Button - Spigot Switch 2A Heater Coil (Order By Freezer 7B 162302 Spring - Spigot Switch
Serial Number) 8 150553 Pilot Light - Amber 3 Starter (Order By Freezer 9 150552 Pilot Light - Red
Serial Number) 10 161026 Thermometer (Not Shown) 4 150208 Timer
26
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Pointed u
- - --- -
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prifllcl If USA
In-
ca ~ Q ltC wr w I
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SOFT-SERVE - SINGLE HEAD CAB
REF PART No 1 151351
2 3 4 5 6 151044
151052 7
8 155039 9 155400 10 155117
11 151084
12A 159021 13 155401 13A 155423 14 155403 15 155422
16 154976 16 154975 17 159203 18 155051 19 112901
155410 20 155044
151348
DESCRIPTION Capacitor Relay Assembly (single phase)
150247 Start Capacitor
150249 Run Capacitor 150245 Relay Motor Capacitors (order by freezer serial no) Gear Reducer (see gear reducer breakdown page 36) Driven Pulley (order by freezer serial no) Belt (order by freezer serial no) Motor 1-phase 230 volt Motor 3-phase 208230 volt Driver Pulley (order by freezer serial no)
Water Condenser Automatic Expansion Valve (Cylinder) Air Condenser
Condenser Fan Motor
Condenser Fan Blade High Pressure Cut-Out shyHigh Pressure Cut-Out shyLow Pressure Cut-Out Solenoid Valve
Compressor 230160
AC WC
Compressor 208-230360 Sight Glass Drier (38) Receiver Tank Assembly Water Valve (not shown) Service Valve Compressor Mounting Kit
Note I) lt0 For All 50-Cycle Freezers Order By Freezer Serial Number
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Printad I usA
30
c W -I o o o a w ~ 3
III
~ W -I III J o C
w gta w en u o en
SOFT-SERVE - DOUBLE CAB - WATER COOLED REF PART No DESCRIPTION 1 155026 Water Condenser (B-side) 1 A 155039 Water Condenser (A-side) 2 159203 Sight Glass 3 155051 Drier (38) 4 155400 Automatic Expansion Valve (Cylinder) 5 Gear Reducer (see gear reducer breakdown page 36) 6 155410 Water Valve 7 155423 High Pressure Cut-Out 8 155403 Low Pressure Cut-Out 9 154976 Compressor 230160
151351 Capacitor Relay Assembly (Single Phase) 150247 Start Capacitor 150249 Run Capacitor 150245 Relay
9A 154975 Compressor 208-230360~-11 NOT USED ON THIS MODEL 12 155442 Low Temp Control 13 Driven Pulley (order by freezer serial no) 14 Belt (order by freezer serial no) 15 Driver Pulley (order by freezer serial no) 16 155422 Solenoid Valve 17 151044 Motor 1 phase 230 volt 17A 151052 Motor 3 phase 208230 volt 18 Motor Capacitors single phase only (order by freezer serial no)
Note For All 50-Cycle Freezers Order By Freezer Serial Number
cgt
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH _InU5A
32
c W J o o o -a oCt
aI oCt o W I m ) o c w gta w Ch t--LL o Ch
SOFTmiddotSERVE bull DOUBLE CAB - AIR COOLED REF PART No 1 155120 2 159020 3 151080 4 155400 5 6 159203 7 155051 8 112901 9 151044 9A 151052 10 11 12 14 154976
14A 154975 15 155401 16 155403 17 155443 18 155442 19
21 155422
DESCRIPTION Condenser Fan Blade Fan Motor Automatic Expansion Valve (Cylinder) Reducer (see gear reducer breakdown page 36) Sight Glass Drier Receiver Assembly Motor 1-Phase 230 Volt Motor 3-Phase 208230 Volt Driven Pulley (order by freezer serial no) Belt (ordr by freezer serial no) Driver Pulley (order by freezer serial no) Compressor 230160 151351 Capacitor Relay Assembly (Single Phase)
150247 Start Capacitor 150249 Run Capacitor 150245 Relay
Compressor 208-230360 High Pressure Cut-Out Low Pressure Cut-Out Cabinet Thermostat Low Temp Thermostat NOT USED ON THIS MODEL Motor Capacitors single phase only (order by freezer serial no) Solenoid Valve
Note For All 50-Cycle Freezers Order By Freezer Serial Number
Vl Vl
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prinled In USA
CAB PARTS BREAKDOWN
REF PART No DESCRIPTION PART No DESCRIPTION 1 155109 Cabinet Coil 136297 Condensate Pan (Not Shown) 1A 155113 Motor Cabinet Fan 196092 Mix Tank 7-12 Gal 1B 155099 Fan Blade Cabinet Coil 113997 Front Lid Mix Container
7-12 Gal 136248-01 Rear Lid Mix Cont 7-12 Gal
10 155416 CAB Automatic Expansion 130092 Mix Tube Valve 196028 Mix Tank 10 Gal
137119 Probe 11 -1 4 shy1E 155114 Fan Grill amp Bracket 7-12 Gal Container 1F 155116 Knob 137119-01 Probe 10-34 shy2 113898 DPR Pump Less Motor 7-12 amp 10
(see pump breakdown Gal Container pg 38) 137119-02 Probe 10-14 shy
3 196061 Mix Hose (sold by the foot) 10 Gal Container 4 150416 Door Switch 137120 Base Probe Mtg 4A 114630 Actuator Door Switch 160500 O-Ring
(Not Shown) 114572 Hose Clamp (Not Shown) 5 150527 Retractable Cordset 34
MIg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prlmd UsA
MERCHANDISING ASSY
PART No 115108 115107
PART No
196107-01 196108-01 114610 114608 115132 199030
PART No 162105 162106 112978 158004 158021 158022 158078 158000 158056 158000A 158014 158014A 161000 158049
DESCRIPTION 2S Merchandiser-927-957-978CAB 24 Merchandiser-917CAB
DRIP TRAY
DESCRIPTION
24 Drip Tray-917CAB 26- Drip Tray-927-957-978CAB 24 Tray Insert-917CAD 26 Tray Insert-978CAB-927CAB 26 Tray Insert-957CAB Rubber Bumper (only)
DESCRIPTION Caster With Brake Caster Without Brake Leg-6 4 Cylinder Brush Mix Hose Brush 58 Dia w6 Ft Handle 14 Pump Brush Drain Tube Brush Petrol Gel (12 tube carton) Petrol Gel (6 tube carton) Pe1rol Gel (per tube) Stera Sheen (per case) Stera Sheen (per jar) Pocket Thermometer 1 Dial Z32 Overrun Scale
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SNAKE bull SLUSH
35
36
GEAR REDUCERS Order By Freezer Serial Number
Model 3 CB
153345 5-1 Ratio B side 153004 High Speed Cup ~ (2 ea required) 153005 High Speed Bearing (2 ea required) 153008 Slow Speed Cup (2 ea required) 153009 Slow Speed Bearing (2 ea required) 153052 Slow Speed Seal (2 ea required) 153054 High Speed Seal (2 ea required) 153313 Brass Gear 5-1 Ratio 153336 Slow Speed Shaft Only 5-1 Ratio 153316 Worm Gear On Shaft 5-1 Ratio 114873 Gasket Set
Model 4 CB
153342 10-1 Ratio A side 153343 10-1 Ratio B side
153014 High Speed Cup (2 ea required) 153015 High Speed Bearing (2 ea required) 153011 Slow Speed Cup (2 ea required) 153012 Slow Speed Bearing (2 ea required) 153051 Slow Speed Seal (2 ea required) 153053 High Speed Seal (2 ea required) 153349 Brass Gear 10-1 Ratio 153339 Slow Speed Shaft OnIy 10-1 Ratio 153347 Worm Gear on Shaft 10-1 Ratio 114874 Gasket Set
Winlwin Model
153341 Wintwin 10-1 Ratio A and B Side
153014 High Speed Cup (2 ea required) 153015 High Speed Bearing (2 ea required) 153011 Slow Speed Cup (2 ea required) 153012 Slow Speed Bearing (2 ea required) 153051 Slow Speed Seal (2 ea required) 153053 High Speed Seal (2 ea required) 153349 Brass Gear 153350 Slow Speed Shaft Only 153348 Worm Gear on Shaft 11 4874 Gasket Set
158055 Gear Reducer OU 51001
Drive Coupling (Order By Machine Serial Number)
Mfg by H C DUKE amp SON INC bull 2115 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
917 amp 927 Beater Shaft Assembly
957 Beater Shaft
Item Part No Description
1 196079 Bushing-Cylinder 2 114752 Beater-Assy Long (Shaft) 3 137334 Blade-Scraper Soft Serve 4- 160500 O-Ring (Shaft Seal) 5- 133098 Bushing (Washer-Shaft Seal) 6 160557 Seal-Beater Shaft
-Items 4-6 111875 Seal-Assy Shaft (Complete)
31
1 113438 2 196079 3 137334 4- 160500 5- 133098 6 160557
-Items 4-6 111875
Shaft-Assy Beater Bushing-Cylinder Blade-Scraper O-ring (Shaft Seal) Washer-Shaft Seal (Bushing) Seal-Beater Shaft (Cup)
Seal-Assy Shaft (Complete)
ao
DISPENSING HEAD
16
r
Q
--~
-----_
REF PART No DESCRIPTION Tl3o 6 119928- Door Assembly shy Complete (Items 7-14) 11637- 7 196688 Door shy Less Parts
a 134921 Spigot shy Less Extension 9 134922 Handle Extension shy Spigot
10 162624 Handle 11 159295 OmiddotRings shy Spigot (Lots of 5)12 159309 O-ring shy 4 - Door 13 196066 Air Relief Screw 14 160621 a-Ring shy Air Relief Screw (Lots of 5)15 136126 Rod - Spigot Switch shy 917 8 927 16 136798 HMdKnob
38
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illmols 61244
SUPERIOR QUAUlY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
Duke Soft Serve Freezer Models 917R and 927RN
5 -______
7
6
UPDATEDDispense Head Assembly
Item Part No
115130 1 116321 2 160583 3 115129 4 160562 5 136126 6 134921 SA 162624 68 134922 7 159295 8 160584 9 162625 9A 114341 10 196185 10A 137870 108 136713
116410
Includes items 1-4 6-8
Description
Head-Assy Dispense (Complete) Head-Assy wActualor O-ring (Head-4-inch) Bleeder-Assy (Air Relief Plug) O-ring (Bleeder-Assy) Rod-Spigot Switch Spigot-long Single Handle-Black Tapered Handle-Spigot (Stainless Steel) O-ring (Spigot) O-ring (Extension) Knob-Hand Stud-Assy Cylinder 1-15116 inch (not shown) Nouie-Slar Adapter (accessory) Adapter-Yogurt Nozzle (not shown) Extension-Spigot (accessory-cake not shown) Kit-Dispense Head Switch
( Use only original or authorized replacement parts with this freezer )
DISPENSING HEAD
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH uu
REF PART No 114765
1 196082 2 114313 3 137018 5 136618 6 162626 8 134499 9 162625
10 115129 11 136794 12 159309 13 159295 14 160562 15 136713 16 160584
DESCRIPTION Door Assy-Complete Door-Less Parts Spigot Assy-Side Spigot Only-Center Extension Only-Center Handle Stud-Handle Stop Hand Knob Air Re1ief-Assy Rod-Spigot Switch O-Ring-4-Door O-Ring-Spigot O-Ring-Air Relief Extension-Spigot a-Ring
39
40
PUMP MOTOR AND HOUSING ASSEMBLY SAFETY SWITCH ASSEMBLY
PRESSURE SWITCH ASSEMBLY ijreg~
I
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH IIIUaA
CAB DPR PUMP BREAKDOWN
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 196091 Pump Base 46 114009 Pump Cover 2 136088 Pump Support 47 113464 Base Bracket Assembly 3 150784 Strain Relief Bushing 48 135725 Stud 1-78 4 Power Cord 49 160131 516 Flatwasher 5 160075 10-24 x 38 Screw 50 160293 Speed Clip 6 135416 Cover Electric Box 51 135724 Button 7 160141 14 Lockwasher 52 160140 10 Lockwasher 8 160491 14-20 x 34 Socket Screw 53 135726 Stud 3 9 113497 Motor Cord 18-3 SJT 54 160109 10-24 Hex Nut 10 151127 Motor 40 RPM Soft Serve 55 135729 Switch Actuator 11 160023 14-20 x 1 Screw 56 135731 Stop - Max Pressure 12 153317 Half Moon Key 57 162315 Spring - Soft Serve 13 112925 Cam Drive Plate Assembly 58 160138 10 Flat Washer 14 160495 14-20 x 14 Set Screw 59 160304 10-24 Stop Nut 15 160369 Pin 60 150456 Pressure Switch 16 134614 Swing Clamp 61 135744 Insulator - Fiber 17 134521 Adjusting Clamp 62 160381 6-32 x 1 Socket Screw 18 160488 Thumb Screw 63 160393 6 Flatwasher 19 134604 Bearing Bushing 64 160146 6 Lockwasher 20 134602 Connecting Rod 65 160309 6-32 Hex Nut 21 134601 Piston 66 160006 6-32 x 14 Screw 22 159295 O-Ring 67 160001 8-32 x 38 Screw 23 134603 Wrist Pin 68 160470 8 Lockwasher 24 136089 Cylinder 69 150481 Circuit Breaker 25 199011 Washer Valve 70 135727 Switch Bracket 26 159282 O-Ring 71 136311 Spacer - Cover Switch 27 113839 Pump Valve Housing 72 160028 Truss Head Screw
Assembly (Metal) 14-20 x 34 SST 28 160582 O-Ring 73 160141 Lockwasher 14 29 199020 Sleeve Rubber 74 160104 Hex Nut 14-20 30 135793 Retainer Clip 75 136312 Button Guard 31 135791 Adapter Hose Outlet 76 160020 Hex Hd Cap Screw 32 160581 O-Ring 14-20 x 1 SST 33 135790 Piston 77 113869 Switch Bracket 34 162308 Spring Soft Serve 78 136110 Button Cover Switch 35 135792 Drain Port 79 162314 Spring 36 160611 O-Ring 80 150456 Switch Pump Safety 37 135896 Hose 24 81 135004 Switch Cover 38 160738 Hose Clamp 82 160296 Screw RH 39 136288 Keeper 6-32 x 1-14 40 160554 O-Ring 83 160146 Lockwasher 6 41 160368 Wing Nut Int Tooth 42 130054 Diaphragm Housing 84 160393 Flatwasher 6 43 199019 Diaphragm 85 160309 Hex Nut 6-32 44 196074 Air Tube-Curved 86 114572 Hose Clamp 45 163433 Air Meter - 20 87 160048 14-20 x 12 TRHM
(other sizes available) 88 160308 6-32 x 516 RDHM 89 114581 Circuit Breaker Bracket
Not Shown 90 163109 Stop Pivot 112791 DPR Pressure Gauge
41
Mfg by H C DUKE amp SON INC 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
42
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Unit does not operate 1 Fuse blown at main disconshy 1 Check fuse size check for low nect voltage if not within 10 of
nameplate rating install transformer or call power company
2 Beater motor out on overload 2 Press starter reset button and check for low voltage Check producllemperalure and overrun
3 Disconnected or broken wife 3 Check wiring and wire connecshyin electrical circuit lions repair or replace lead
wires as necessary
4 Faulty selector switch 4 Replace selector switch
5 Out on high pressure 5 Check for low waler supply or dirty air conden ser
6 Out on low pressure 6 Check limit control and freon charge
Compressor does not operate f Troubte in compressor con- I Refer to Trouble-Shootingshyor operates improperly densing circuit Compressor I Condensing
Circuit
2 Faulty capacitor assembly 2 Replace capaCitor assembly (Single phase only)
3 Faulty contactor 3 Replace contaclOr or pOints
Compressor operates but 1 Loose con neclion at motor 1 Tighten connection beater motor does not starter coil (electrical box)
2 Open starter coil 2 Replace coil
3 Faulty capacitor assembly 3 Replace capaCitor assembly (Single phase only)
Dispensed product too hard 1 Cylinder themostat erratic 1 Adjust thermo slat or replace or set too low
2 Faulty time delay relay 2 Replace time delay relay
3 Solenoid valve leaking 3 Replace solenoid valve
4 Low suction pressure 4 See chart on page 15 for adshyjustments
Leaking of mix from rear housshy 1 Damaged bealer shalt seal 1 Replace shaft seal or O-ring ing discharge tube to drip tray inside seal assy
Mig by H C DUKE amp SON INC bull 2116 Eighlh Avenue Easl Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Mix leaking at dispensing head 1 Faulty 4 O-Ring
2 Head not properly installed
1 Replace 4 O-Ring
2 Install head properly
Mix sours in cabinet 1 Cabinet thermostat setting too high
2 Cabinet thermostat detective
3 Cabinet solenoid valve deshyfective
4 Cabinet switch defective
5 Beater motor out on overshyload (cab side)
1 Adjust thermostat
2 Replace thermostat
3 Replace coil or solenoid
4 Replace cabinet switch
S Reset overload for beater motor See pg 42 unit does not operate
Cabinet too COld
Machine runs continually and Product continues to get colder
Compressor operates only when dispensing
Unit runs conMuously Product does nol reach 180 F temperature
6 Door sWitch defectIVe
1 Cabinet thermostat setting too low
2 Defective thermostat
3 Cabinet solenoid stuck open
4 Cabinet expansion valve set too low
1 Plunger switch out of adjustshyment
2 Su ction pressure too low
3 Defective plunger switch
4 Plunger switch rod engaged
5 Faulty time delay relay
6 Starter or relay contacts stuck
7 Faulty thermostat or bulb not deep enough in well
6 Replace door SWitch
1 Adjust thermostat
2 Replace thermostat
3 Replace solenoid
4 Adjust cabinet expansion valve (See pg 15)
1 Adjust plunger switch
2 Adjust expansion valve and check freon charge
3 Replace plunger switch
4 Close plunger completely
5 Replace time delay relay
I 6 Check contacts i
7 Check bulb location or replace thermostat
1 Cylinder themostat setting 1 Adjust thermostat or replace too high or thermostat deshyfective
1 Trouble in compressor I condensing system
2 ExpanSion valve setiing is too high
3 Low on refrigeranl
1 See Trouble-Shooling-CompressorI Condensing circuit
2 Adjust expansion valve
3 Check and repair leak and recharge
1
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE SLUSHbull
43
44
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Dispensed product too soft (Product temperature above 21 0 F)
1 Automatic expansion yalve incorrectly set or erratic in operation
-2 Leak in refrigeration system
resulting in little or no refrigeration
1 Adjust or replace expanSion valve
2 Pump down system or remove refrigerant charge repair leak evacuate and recharge
3 Excessive oil in system 3 Drain compressor to proper oil leyel pump down and flush system
4 Thermostat set too high taulty
or 4 Adiust thermostat or replace
Product dispenses slOWly out dispensing head
1 Reverse rotation 1 Change rotation to clockshywise from front of freezer
2 Dispensing speed adjustshyment boll too far down
2 Adjust bolt upward
3 Pum p problem 3 See pump Trouble-Shooting chart
4 Product too cold 4 See dispensed product too hard pg42
TROUBLE-SHOOTING CHART COMPRESSORICONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor will not start -hums intermittently (cycling on oyerload)
1 Improperly wired
2 Low line Yoltage
3 Open starting capacitor (single phase only)
4 High discharge pressure
1 Check wiring against diagram
2 Ask power company to increase YOltage to not less than 10 below nameplate rating or install transformer Check for inadequate wire size
3 Replace starting capacitor
4 CheCK water regulating valve setting Check water or air condenser and clean if necessary Make sure disshycharge shut-oft valve is open
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor starts but remains 1 Low line voltage 1 Ask power company to in start windings increase voltage to not less (Single phase only) than 10 below nameplate
rating or install transrormer
2 Improperly wired 2 Check wiring against drawing Check wire size
3 Running capacitor shorted 3 Check by disconnecting running capacitor
4 Starting capacitor weak 4 Check capacitor replace
5 High disCharge pressure 5 Check water regulating valve check water or air condenser and clean il necessary Check discharge shut-off valve
Starter burned out 1 Low line voltage 1 Ask power company to inshycrease voltage to not less than 10 below nameplate rating or install transformer
2 Excessive line voltage 2 Ask power company to reduce voltage to maximum of 10 over nameplate rating
Starting capacitors burn out 1 Voltage 100 low 1 Ask power company to (Single phase only) increase voltage to not less
than 10 below nameplate rating or install translonmer
2 Improper capacitor 2 Replace capacitor with properly rated capacitor as listed in manual
Running capacitors burn out 1 Excessive line voltage 1 Ask power company to reshy(Single phase only) duce line voltage to not more
than 10 above rating 01 motor
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
45
46
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Unit operates long or continuously
1 Shortage of gas
2 Dirty condenser
3 Moisture in system
4 Compressor failing
1 Repair leak and recharge
2 Clean condenser
3 Evacuate and recharge system
4 Check compressor lor proper pressures If inadequate replace compressor
Head pressure too high 1 Refrigerant overcharge
2 Air in system
3 Dirty condenser (air cooled)
4 Unit location too warm (air cooled)
5 Restricted water cooled condenser
6 Water turned off or defective
1 Purge system
2 Purge system evacuate and recharge
3 Clean condenser
4 Relocate unIt away from restriction Place nothing against back or on top of unit
5 Clean or replace condenser
6 Turn on water Or replace water regulating valve regulating valve
Head pressure too low 1 Shortage 01 refrigerant 1 Repair leak and recharge
2 Water regulating valve open 2 Adjust regulating valve too wide
Water 1I0wing through water 1 Water regulating valve 1 Replace water regulating valve waste line when unit is not in operation
defective
Noisy compressor 1 Tubing raUle 1 Bend tubes away from contact
NOTE Refer to warranty card prior to compressor replacement
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING DPR PUMP
TROUBLE PROBABLE CAUSE REMEDY
Pump will not run 1 Pump cover removed 1 Install pump cover
2 Pressure switch actuating 2 Free bulton-check spring and
bulton stuck open (in) pressure switch alignment
3 Pressure switch burned out 3 Replace pressure switch
4 Starting switch in motor bad 4 Install new starting switch
5 Motor burned out 5 Replace motor
6 Circuit breaker kicked out 6 Allow to re- set Replace it or faulty circuit breaker will not
automatically re-set
Motor runs-cam drive plate 1 Loose cam drive plate 1 Tighten set screw in cam will not turn drive plate Check woodruff key
2 Gear stripped 2 Replace gear
Pump will not shut off Mix 1 Pressure swilch actuating 1 Free button-check pressure shoots out pressure relief bulton stuck closed (out) switch alignment
2 Pressure switch stuck in 2 Replace pressure switch closed position
3 Pressure switch assy out 3 Using pressure gauge adjust of adjustment pressure
4 Dirty or plugged diaphragm 4 Disassemble and clean housing (Ref 42) housing
5 Defective O-Ring on 5 Replace O-Ring pressure relief piston
Pump will not prime 1 Insufficient supply of mix 1 Replenish mix supply
2 Piston O-ring defective-no 2 Replace piston O-Ring and suction lubricate
3 Washer valve not sealing 3 Replace washer valve DO NOT LUBRICATE
Pump primes No pressure in 1 Sleeve (Rei 29) not sealing 1 Replace sleeve DO NOT cylinder properly LUBRICATE
2 Loose hose connection on 2 Install or tighten hose clamp pump valve housing (Ref 27)
Mix shoots out Of air intake line 1 Washer valve (Ref 25) 1 Replace washer valve-DO not sealing properly NOT LUBRICATE
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOfT SERVE bull SHAKE bull SLUSH
47
48
TROUBLE-SHOOTING DPR PUMP
Too much air overrun too high-popping problems
Product dispenses slowly out of disPenSing head
1 Air meter too large (Ref 45)
2 Air leak befween mix conshytainer and mix inlet
3 Air line hose crackedshysucking air (Ref 44)
4 Pump pressure too lowshycylinder not full
1 Pump pressure too low
2 PrOduct too cold
3 Low overrun
Diaphragm housing leaking mix 1 Diaphragm housing loose
2 Diaphragm defective
Piston drive assy noisy 1 Bushing bearing worn
2 Defective gear in gear motor
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SIfAKE bull SLUSH
REMEDY
1 Replace washer valve-DO NOT LUBRICATE
2 Install clamp on hose
1 Replace O-Ring and LUBRIshyCATE
1 Clean or replace air meter
2 Replace tube
1 Install smaller air meier
2 Repair as needed
3 Replace air line hose
4 Using pressure gauge adjust pressure switch
1 Using pressure gauge adjust pump pressure
2 Check product temperatureshyshould be about 18 F
3 Check meter-if plugged-clean
1 Tighten wing nuls (Ref 41)
2 Replace diaphragm (Ref 43)
1 Replace bushing bearing (Ref 19)
2 Replace gear
TROUBLE
Mix inlet hose loses prime
Mix on top of piston
PROBABLE CAUSE
1 Washer valve (Ref 25) not sealing properly
2 Mix inlet hose loose
1 Piston O-Ring leaking (Ref 22)
No Air (Overrun) 11 Ai r meter plugged (Ref I 45)
2 Curved air tube pinched
--
DPR PUMP aI
PART NO 199019(i) PART NO 199020 reg DIAPHRAGM RUBBER SLEEVE
PART NO159295 PART NO 159282reg O-RING O-RING0
PART NO 160581reg O-RING
o PART NO PART NO
PART NO199011() 160611(8) 160582 WASHER VALVE O-RING O-RING
PISTON
cJ
DIAPHRAGM HOUSING
CYLINDER
VALVE HOUSIN6 ASSEMBLY
PUUPOUTLET
DRAIN PORT
I PHNO309-755-4553 O-RING CHART HCDUKEampSONINC I
1 I84Z08 SOFT SERVE DISPENSING HEADS I
o PART NO 1605620
PAR~159--1b
PART NO PART NO 1605841 59295()
I PHNO 309-755-4553 O-R ING CHART HCDUKEampSONINC I
- Cover
- Table of Contents
- Safety
- Uncrating amp Inspection13
- Explanation of Electrical Controls
- Operation of Machine
- General Information
- Maintenance amp Adjustment
- Parts Breakdowns
- Trouble-Shooting Charts
- O-ring Charts
-
16
THERMOSTATS
A WARNING
DISCONNECT MAIN POWER SUPPLY BEFORE REMOVING PANELS
Thermostat Au is the cabinet refrigeration thermostat The cabinet thermostat operates off of both the day and night switch operation to maintain 44 0 F or lower in the mix storage cabinet This thermostat can be adjusted by rotating the adjustment knob To set this thermostat colder turn the adjustment knob clockwise
CYLINDER THERMOSTAT
The cylinder thermostat is located behind the right side panel (on single head CABs) faCing the front of the machine On the double head CABs like the expansion valve a cylinder thermostat is located behind both the right and left side panels This control has two settings The first is the differential which should be set on 7-8deg F The other side of the control marked HIGH EVENT should be set between 17-220 F
The purpose of the cylinder thermostat is to maintain an 18deg F product during idle periods If the thermostat is set too cold and product is not drawn out of the machine a freeze up condition will result DO NOT run the product below 17deg F
NOTE The settings on the thermostat are ONLY to be used as a guide
For a correct adjustment a thermometer must be used to check the actual product temperature Each thermostat should be set in the field for the product being used Most of the time a temperature setting of between 18deg and 19deg F will maintain a satisfactory product Once the thermostat is set for the mix used it should require no further adjustment
MIg by H C DUKE amp SON INC 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH P~IIIIUSA
THERMOSTAT_________ Turn knob clockwise to make product colder
Differential adjustment
copy
COLDER ~ reg
copy5
2 6Igt
1 7 OFF
copy
THIS ASSEMBLY USED ON LEFT SIDE OF UNIT
RIGHT SIDE USES THIS ASSEMBLY WIO THERMOSTAT A (CAB THERMOSTAT)
MIg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
17
18
MAINTENANCE AND ADJUSTMENT
ONLY TO BE PERFORMED BY A QUALIFIED SERVICE TECHNICIAN
WARNING
MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFF POSITION AND THAT THE MAIN POWER SUPPLY IS DISCONNECTED BEFORE REMOVING PANELS
LUBRICATION INSTRUCTIONS
FAN MOTOR (Air Condenser) Lubricate annually with SAE 10 motor oil in the oil cups
CAUTION DO NOT OVER-LUBRICATE OVER-LUBRICATION CAN DAMAGE MOTOR
GEAR REDUCER The gear reducers are heavy duty worm-geared units manufactured to HC Duke specifications II traces 01 oil are found in the immediate area around the reducer repair the leak (usually an oil seal) and check the oil level When adding oil use only synthetic gear lube in the reducer
NOTE This is a special oil and will not mix with a petroleum base oil Contact your distributor when this oil is needed This oil should be changed at least once a year
OIL LEVEL PLUG
PROPER OIL LEVEL
OIL DRAIN USE SPECIAl PLUG OIL ONLY
USE SPECIAL LOILON=LY-- I
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH ~1U8A
MAINTENANCE AND ADJUSTMENT ONLY TO BE PERFORMED BY A QUALIFIED SERVICE TECHNICIAN
WARNING
MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFFA POSITION AND THAT THE MAIN POWER SUPPLY IS DISCONNECTED BEFORE REMOVING PANELS shy
BEATER MOTOR Beater motors are either single or three phase Capacitor starting is used on the single phase units The beater motor should be inspected and cleaned
WATER COOLED CONDENSER Depending on the condition of your water the condenser on your CAB machine may require cleaning from time to time Usually a restricted flow of water resulting in a high head pressure indicates a dirty condenser The condenser should be flushed out with an acid solution by a qualified service technician
AIR COOLED CONDENSERS At least once a month the face area of the condenser should be inspected for accumulation of dirt and dust Surface dust and dirt can usually be removed with a stiff brush andor vacuum cleaner After brushing hold a light between the fan blades and look through the condenser from the opposite side This procedure will locate those areas where accumulated dirt has lodged between the condenser fins To clean these areas obtain a small tank of nitrogen or C02 with a needle control valve or pressure regulator with a small hose attached and proceed as follows
(1) Place a damp towel or cloth over the face area of the condenser
(2) Open the control valve or regulator on the tank releasing pressure to the coil from the back side cleaning the condenser
(3) Check the condenser periodically with the light and continue the treatment until the fins are clean
For maximum performance replace all worn O-Rings Seals Blades etc
CAUTION USE ORIGINAL OR AUTHORIZED REPLACEMENT PARTS ONLY WITH THIS FREEZER
Mig by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline illinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
19
20
PULLEY ALIGNMENT AND BELT TENSION ONLY TO BE PERFORMED BY A QUALIFIED SERVICE TECHNICIAN
WARNING
A MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFF POSITION AND THAT THE MAIN POWER SUPPLY IS DISCONNECTED
Remove the side panels to expose the pulleys and belts
Check the alignment of the beater motor pulley and gear reducer pulley by placing a straight edge across the faces of the two pulleys If the pulleys are not aligned adjust as necessary until proper alignment is obtained
Depress the belts with a finger at a point midway between the two pulleys When properly adjusted the belts should depress 12 from its normal position with approximately 5 pounds of pressure If the belts are too tight or too loose adjust as necessary until proper belt deflection is obtained Loosen four (4) bolts which hold the motor mounting plate to the frame With these loose adjust tension bolt in or out as required to obtain proper belt tension Retighten bolts
BELTS
Periodically inspect the belts If they are worn excessively replace both belts For best results it is advisable to replace both belts as they are manufactured in matched sets
SCRAPER BLADES
NOTE Be sure to purge all of the sanitizer from the mix system before operating the freezer (see page 12) Failure to completely remove sanitizer or water trom the freezing cylinder before placing the machine in the Automatic position may cause blade breakage and damage the freezer
o o
NEW BlADE WORN BLADE
Replace blades if worn 316 or more
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
END PLAY FOR BEATER DRIVE COUPLING
It is very important that the drive coupling located on the gear reducer be set properly Referring to the Drive Coupling Illustration the following procedure should be followed in setting the end play
WARNING
MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFF POSITION AND THAT THE ELECTRICAL POWER TO THE MACHINE IS DISCONNECTED SO THAT THE UNIT WILL NOT OPERATE
------
DRIVE COUPLING ILLUSTRATION
REF DESCRIPTION REF DESCRIPTION 1 Gear Reducer 6 Reducer Mounting Plate 2 Beater Shaft 7 Set Screws 3 Shaft Seal 8 Bolt Gear Reducer 4 Drive Coupling 9 Bolt Reducer Mounting Plate 5 Spacer 10 Key
11 Output Shaft
Improper drive coupling spacing will damage the beater shaft dispensing head and drive coupling When checking end play settings or replacing a coupling proceed as follows
REMOVING COUPLING
WARNING
DISCONNECT MAIN POWER SUPPLY
Mig by H C DUKE amp SON INC bull 2116 Eighth Allenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SO SERVE bull SHAKE bull SLUSH
21
22
(1) Remove Beater Shaft (Ref 2)
(2) Remove both drive belts (not shown)
(3) Remove gear reducer bolts (Ref 8) Six (6) bolts are located around the face of the reducer
NOTE Remove the top bolt last holding the bottom of the reducer as you do so
(4) Remove the gear reducer (Ref 1) and place-on table or bench
(5) Replace two (2) bolts (Ref 8) one (1) at the top and one (1) at the bottom so that the reducer cover will not come off while the coupling is changed
(6) Loosen the four (4) set screws (Ref 7) and remove the drive coupling (Ref 4) Should the coupling be stuck tight to the ouput shaft lightly tap the coupling from the back with a hammer and bar Sometimes due to age this coupling will stick so tight it will have to be removed with a pulley removing tool or a wheel puller
(7) Remove the key (Ref 10)
INSTALLING THE NEW COUPLING
(1) Clean gear reducer output shaft (Ref 11) with fine emery cloth and slide the new drive coupling on the reducer shaft The coupling should slide on the shaft all the way without the key If the coupling doesnt slide completely on check both coupling and reducer shaft for burrs When a smooth sliding fit is achieved remove coupling and proceed with final assembly
(2) Place key (Ref 10) in keyway slot on the reducer output shaft Keep the key flush with the front end of the output shaft (Ref 11)
(3) Slide the coupling (Ref 4) on the output shaft until it bottoms out on the shaft Leave the four (4) set screws loose as the coupling will have to be adjusted
(4) Remove the two (2) bolts added in preceding Step 5
(5) Place one (1) gear reducer bolt (Ref 8) in the top hole of the cylinder mounting plate
(6) Insert gear reducer into cylinder mounting plate and start top bolt (Ref 8) Do nol tighten completely Now insert the other bolts one at a time When all bolts are in tighten each boll
NOTE Due to very close tolerance between the gear reducer and cylinder mounting plate no alignment is required when Installing the reducer When the reducer bolts are tightened the reducer will seH-align with the cylinder
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
(7) Insert the beater shaft (Ref 2) with the shaft seal and blades into the cylinder and engage beater shaft in the drive coupling Place bushing on front of beater shaft
(8) Tape a dime (10 cents) to the back of the dispensing head in the very center at the point where the beater shaft touches the dispensing head The dime is used to acquire the proper end play setting on the drive coupling which is approximately 332
(9) Place the dispensing head into the cylinder and tighten with the hand knobs Important make sure hand knobs are tight and head is against the end of the cylinder tube
(10) Slide the drive coupling (Ref 4) forward until it is tight against the beater shaft and lock into place the four (4) set screws (Ref n
(11) Remove the dime from the back of the dispensing head
(12) Replace the drive belts
(13) Turn on electrical power
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
23
PANEL BREAKDOWN - 917CAB
~--~
3
REF PART No 1A 114544 1B 112991 2A 136075 2B 136102
3A 137027 3A 137028
3A 136105 3B 136103
3B 134817 4 134818
4 136101 5A 114780
5A 113570 5B 112967
6 112960 7 133291
24 A 917CAB only
I
dJ
DESCRIPTION Frame ssmiddoty Frame ASsmiddoty Lower Side Panel Lower Side Panel LH Side Panel RH Side Panel Upper Side Panel Upper Side Panel Upper Side Panel Rear Panel Rear Panel Top Cover ASsmiddoty Top Cover ASsmiddoty Top Cover ASsmiddoty Filler Panel ASsmiddoty Top Filler Strip
B bull 44 CAB only
~
[At 16 lt0
REF 8
9 10 11 12 12A 13
14 15 16 16A
Air Cooled only
PART No DESCRIPTION 132687 Dispense Panel 134247-01 Dispense Panel Cab-W
Drip Tray (See Pg 35) 114260-01 Door Assmiddoty wIHinges 132444-01 Left Hand Filler Strip 162045 Upper Hinge 162052 Spring LH 162046 Lower Hinge 160026 Screw 160020 Bolt 160139 Washer 110205 Syrup Jar Enclosure 160563-01 Door Gasket 01-Groove) 159174 Drip Tray Button 160293 Clip for Button
Water Cooled only
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
~~
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REF PART No DESCRIPTION REF PART No DESCRIPTION 1 114538 Frame Assy 10 162045 bull Upper Hinge 2 136289 Side Panel LH lOA 162052 Spring LH 3 136313 Rear Panel 11 162046 Lower Hinge 4 114006 Top Panel AC llA 160026 Screw 4A 114428 Top Panel WC l1B 160020 Bolt 4B 114157 Top Panel AC Remote l1C 160139 Washer 5 113983 Front Panel Assy 927CAB 12 136216 Side Panel RH 5A 113985 Front Panel Assy 957cAB 13 160563 Door Gasket (V-Groove) 6 130021 Rear Corner Channel RH 14 159174 Drip Tray Button 6A 135254 Rear Corner Channel LH 14A 160293 Clip for Button 7 137228 Dispensing Panel 162108 Stop Pin (Screw In) 8 Drip Tray (See Pg 35) 136199 Door Pull 9 114260 Door Assy wHinges
25
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
SOFT SERVE CAB ELECTRICAL BOX
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 Contactor (Order By Freezer 5 150463 Selector Switch
Serial Number) 6 159235 Toggle Switch (Pump) 2 Overload (Order By Freezer 7 150456 Spigot Switch
Serial Number) 7A 136124 Button - Spigot Switch 2A Heater Coil (Order By Freezer 7B 162302 Spring - Spigot Switch
Serial Number) 8 150553 Pilot Light - Amber 3 Starter (Order By Freezer 9 150552 Pilot Light - Red
Serial Number) 10 161026 Thermometer (Not Shown) 4 150208 Timer
26
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Pointed u
- - --- -
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prifllcl If USA
In-
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SOFT-SERVE - SINGLE HEAD CAB
REF PART No 1 151351
2 3 4 5 6 151044
151052 7
8 155039 9 155400 10 155117
11 151084
12A 159021 13 155401 13A 155423 14 155403 15 155422
16 154976 16 154975 17 159203 18 155051 19 112901
155410 20 155044
151348
DESCRIPTION Capacitor Relay Assembly (single phase)
150247 Start Capacitor
150249 Run Capacitor 150245 Relay Motor Capacitors (order by freezer serial no) Gear Reducer (see gear reducer breakdown page 36) Driven Pulley (order by freezer serial no) Belt (order by freezer serial no) Motor 1-phase 230 volt Motor 3-phase 208230 volt Driver Pulley (order by freezer serial no)
Water Condenser Automatic Expansion Valve (Cylinder) Air Condenser
Condenser Fan Motor
Condenser Fan Blade High Pressure Cut-Out shyHigh Pressure Cut-Out shyLow Pressure Cut-Out Solenoid Valve
Compressor 230160
AC WC
Compressor 208-230360 Sight Glass Drier (38) Receiver Tank Assembly Water Valve (not shown) Service Valve Compressor Mounting Kit
Note I) lt0 For All 50-Cycle Freezers Order By Freezer Serial Number
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Printad I usA
30
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SOFT-SERVE - DOUBLE CAB - WATER COOLED REF PART No DESCRIPTION 1 155026 Water Condenser (B-side) 1 A 155039 Water Condenser (A-side) 2 159203 Sight Glass 3 155051 Drier (38) 4 155400 Automatic Expansion Valve (Cylinder) 5 Gear Reducer (see gear reducer breakdown page 36) 6 155410 Water Valve 7 155423 High Pressure Cut-Out 8 155403 Low Pressure Cut-Out 9 154976 Compressor 230160
151351 Capacitor Relay Assembly (Single Phase) 150247 Start Capacitor 150249 Run Capacitor 150245 Relay
9A 154975 Compressor 208-230360~-11 NOT USED ON THIS MODEL 12 155442 Low Temp Control 13 Driven Pulley (order by freezer serial no) 14 Belt (order by freezer serial no) 15 Driver Pulley (order by freezer serial no) 16 155422 Solenoid Valve 17 151044 Motor 1 phase 230 volt 17A 151052 Motor 3 phase 208230 volt 18 Motor Capacitors single phase only (order by freezer serial no)
Note For All 50-Cycle Freezers Order By Freezer Serial Number
cgt
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH _InU5A
32
c W J o o o -a oCt
aI oCt o W I m ) o c w gta w Ch t--LL o Ch
SOFTmiddotSERVE bull DOUBLE CAB - AIR COOLED REF PART No 1 155120 2 159020 3 151080 4 155400 5 6 159203 7 155051 8 112901 9 151044 9A 151052 10 11 12 14 154976
14A 154975 15 155401 16 155403 17 155443 18 155442 19
21 155422
DESCRIPTION Condenser Fan Blade Fan Motor Automatic Expansion Valve (Cylinder) Reducer (see gear reducer breakdown page 36) Sight Glass Drier Receiver Assembly Motor 1-Phase 230 Volt Motor 3-Phase 208230 Volt Driven Pulley (order by freezer serial no) Belt (ordr by freezer serial no) Driver Pulley (order by freezer serial no) Compressor 230160 151351 Capacitor Relay Assembly (Single Phase)
150247 Start Capacitor 150249 Run Capacitor 150245 Relay
Compressor 208-230360 High Pressure Cut-Out Low Pressure Cut-Out Cabinet Thermostat Low Temp Thermostat NOT USED ON THIS MODEL Motor Capacitors single phase only (order by freezer serial no) Solenoid Valve
Note For All 50-Cycle Freezers Order By Freezer Serial Number
Vl Vl
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prinled In USA
CAB PARTS BREAKDOWN
REF PART No DESCRIPTION PART No DESCRIPTION 1 155109 Cabinet Coil 136297 Condensate Pan (Not Shown) 1A 155113 Motor Cabinet Fan 196092 Mix Tank 7-12 Gal 1B 155099 Fan Blade Cabinet Coil 113997 Front Lid Mix Container
7-12 Gal 136248-01 Rear Lid Mix Cont 7-12 Gal
10 155416 CAB Automatic Expansion 130092 Mix Tube Valve 196028 Mix Tank 10 Gal
137119 Probe 11 -1 4 shy1E 155114 Fan Grill amp Bracket 7-12 Gal Container 1F 155116 Knob 137119-01 Probe 10-34 shy2 113898 DPR Pump Less Motor 7-12 amp 10
(see pump breakdown Gal Container pg 38) 137119-02 Probe 10-14 shy
3 196061 Mix Hose (sold by the foot) 10 Gal Container 4 150416 Door Switch 137120 Base Probe Mtg 4A 114630 Actuator Door Switch 160500 O-Ring
(Not Shown) 114572 Hose Clamp (Not Shown) 5 150527 Retractable Cordset 34
MIg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prlmd UsA
MERCHANDISING ASSY
PART No 115108 115107
PART No
196107-01 196108-01 114610 114608 115132 199030
PART No 162105 162106 112978 158004 158021 158022 158078 158000 158056 158000A 158014 158014A 161000 158049
DESCRIPTION 2S Merchandiser-927-957-978CAB 24 Merchandiser-917CAB
DRIP TRAY
DESCRIPTION
24 Drip Tray-917CAB 26- Drip Tray-927-957-978CAB 24 Tray Insert-917CAD 26 Tray Insert-978CAB-927CAB 26 Tray Insert-957CAB Rubber Bumper (only)
DESCRIPTION Caster With Brake Caster Without Brake Leg-6 4 Cylinder Brush Mix Hose Brush 58 Dia w6 Ft Handle 14 Pump Brush Drain Tube Brush Petrol Gel (12 tube carton) Petrol Gel (6 tube carton) Pe1rol Gel (per tube) Stera Sheen (per case) Stera Sheen (per jar) Pocket Thermometer 1 Dial Z32 Overrun Scale
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SNAKE bull SLUSH
35
36
GEAR REDUCERS Order By Freezer Serial Number
Model 3 CB
153345 5-1 Ratio B side 153004 High Speed Cup ~ (2 ea required) 153005 High Speed Bearing (2 ea required) 153008 Slow Speed Cup (2 ea required) 153009 Slow Speed Bearing (2 ea required) 153052 Slow Speed Seal (2 ea required) 153054 High Speed Seal (2 ea required) 153313 Brass Gear 5-1 Ratio 153336 Slow Speed Shaft Only 5-1 Ratio 153316 Worm Gear On Shaft 5-1 Ratio 114873 Gasket Set
Model 4 CB
153342 10-1 Ratio A side 153343 10-1 Ratio B side
153014 High Speed Cup (2 ea required) 153015 High Speed Bearing (2 ea required) 153011 Slow Speed Cup (2 ea required) 153012 Slow Speed Bearing (2 ea required) 153051 Slow Speed Seal (2 ea required) 153053 High Speed Seal (2 ea required) 153349 Brass Gear 10-1 Ratio 153339 Slow Speed Shaft OnIy 10-1 Ratio 153347 Worm Gear on Shaft 10-1 Ratio 114874 Gasket Set
Winlwin Model
153341 Wintwin 10-1 Ratio A and B Side
153014 High Speed Cup (2 ea required) 153015 High Speed Bearing (2 ea required) 153011 Slow Speed Cup (2 ea required) 153012 Slow Speed Bearing (2 ea required) 153051 Slow Speed Seal (2 ea required) 153053 High Speed Seal (2 ea required) 153349 Brass Gear 153350 Slow Speed Shaft Only 153348 Worm Gear on Shaft 11 4874 Gasket Set
158055 Gear Reducer OU 51001
Drive Coupling (Order By Machine Serial Number)
Mfg by H C DUKE amp SON INC bull 2115 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
917 amp 927 Beater Shaft Assembly
957 Beater Shaft
Item Part No Description
1 196079 Bushing-Cylinder 2 114752 Beater-Assy Long (Shaft) 3 137334 Blade-Scraper Soft Serve 4- 160500 O-Ring (Shaft Seal) 5- 133098 Bushing (Washer-Shaft Seal) 6 160557 Seal-Beater Shaft
-Items 4-6 111875 Seal-Assy Shaft (Complete)
31
1 113438 2 196079 3 137334 4- 160500 5- 133098 6 160557
-Items 4-6 111875
Shaft-Assy Beater Bushing-Cylinder Blade-Scraper O-ring (Shaft Seal) Washer-Shaft Seal (Bushing) Seal-Beater Shaft (Cup)
Seal-Assy Shaft (Complete)
ao
DISPENSING HEAD
16
r
Q
--~
-----_
REF PART No DESCRIPTION Tl3o 6 119928- Door Assembly shy Complete (Items 7-14) 11637- 7 196688 Door shy Less Parts
a 134921 Spigot shy Less Extension 9 134922 Handle Extension shy Spigot
10 162624 Handle 11 159295 OmiddotRings shy Spigot (Lots of 5)12 159309 O-ring shy 4 - Door 13 196066 Air Relief Screw 14 160621 a-Ring shy Air Relief Screw (Lots of 5)15 136126 Rod - Spigot Switch shy 917 8 927 16 136798 HMdKnob
38
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illmols 61244
SUPERIOR QUAUlY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
Duke Soft Serve Freezer Models 917R and 927RN
5 -______
7
6
UPDATEDDispense Head Assembly
Item Part No
115130 1 116321 2 160583 3 115129 4 160562 5 136126 6 134921 SA 162624 68 134922 7 159295 8 160584 9 162625 9A 114341 10 196185 10A 137870 108 136713
116410
Includes items 1-4 6-8
Description
Head-Assy Dispense (Complete) Head-Assy wActualor O-ring (Head-4-inch) Bleeder-Assy (Air Relief Plug) O-ring (Bleeder-Assy) Rod-Spigot Switch Spigot-long Single Handle-Black Tapered Handle-Spigot (Stainless Steel) O-ring (Spigot) O-ring (Extension) Knob-Hand Stud-Assy Cylinder 1-15116 inch (not shown) Nouie-Slar Adapter (accessory) Adapter-Yogurt Nozzle (not shown) Extension-Spigot (accessory-cake not shown) Kit-Dispense Head Switch
( Use only original or authorized replacement parts with this freezer )
DISPENSING HEAD
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH uu
REF PART No 114765
1 196082 2 114313 3 137018 5 136618 6 162626 8 134499 9 162625
10 115129 11 136794 12 159309 13 159295 14 160562 15 136713 16 160584
DESCRIPTION Door Assy-Complete Door-Less Parts Spigot Assy-Side Spigot Only-Center Extension Only-Center Handle Stud-Handle Stop Hand Knob Air Re1ief-Assy Rod-Spigot Switch O-Ring-4-Door O-Ring-Spigot O-Ring-Air Relief Extension-Spigot a-Ring
39
40
PUMP MOTOR AND HOUSING ASSEMBLY SAFETY SWITCH ASSEMBLY
PRESSURE SWITCH ASSEMBLY ijreg~
I
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH IIIUaA
CAB DPR PUMP BREAKDOWN
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 196091 Pump Base 46 114009 Pump Cover 2 136088 Pump Support 47 113464 Base Bracket Assembly 3 150784 Strain Relief Bushing 48 135725 Stud 1-78 4 Power Cord 49 160131 516 Flatwasher 5 160075 10-24 x 38 Screw 50 160293 Speed Clip 6 135416 Cover Electric Box 51 135724 Button 7 160141 14 Lockwasher 52 160140 10 Lockwasher 8 160491 14-20 x 34 Socket Screw 53 135726 Stud 3 9 113497 Motor Cord 18-3 SJT 54 160109 10-24 Hex Nut 10 151127 Motor 40 RPM Soft Serve 55 135729 Switch Actuator 11 160023 14-20 x 1 Screw 56 135731 Stop - Max Pressure 12 153317 Half Moon Key 57 162315 Spring - Soft Serve 13 112925 Cam Drive Plate Assembly 58 160138 10 Flat Washer 14 160495 14-20 x 14 Set Screw 59 160304 10-24 Stop Nut 15 160369 Pin 60 150456 Pressure Switch 16 134614 Swing Clamp 61 135744 Insulator - Fiber 17 134521 Adjusting Clamp 62 160381 6-32 x 1 Socket Screw 18 160488 Thumb Screw 63 160393 6 Flatwasher 19 134604 Bearing Bushing 64 160146 6 Lockwasher 20 134602 Connecting Rod 65 160309 6-32 Hex Nut 21 134601 Piston 66 160006 6-32 x 14 Screw 22 159295 O-Ring 67 160001 8-32 x 38 Screw 23 134603 Wrist Pin 68 160470 8 Lockwasher 24 136089 Cylinder 69 150481 Circuit Breaker 25 199011 Washer Valve 70 135727 Switch Bracket 26 159282 O-Ring 71 136311 Spacer - Cover Switch 27 113839 Pump Valve Housing 72 160028 Truss Head Screw
Assembly (Metal) 14-20 x 34 SST 28 160582 O-Ring 73 160141 Lockwasher 14 29 199020 Sleeve Rubber 74 160104 Hex Nut 14-20 30 135793 Retainer Clip 75 136312 Button Guard 31 135791 Adapter Hose Outlet 76 160020 Hex Hd Cap Screw 32 160581 O-Ring 14-20 x 1 SST 33 135790 Piston 77 113869 Switch Bracket 34 162308 Spring Soft Serve 78 136110 Button Cover Switch 35 135792 Drain Port 79 162314 Spring 36 160611 O-Ring 80 150456 Switch Pump Safety 37 135896 Hose 24 81 135004 Switch Cover 38 160738 Hose Clamp 82 160296 Screw RH 39 136288 Keeper 6-32 x 1-14 40 160554 O-Ring 83 160146 Lockwasher 6 41 160368 Wing Nut Int Tooth 42 130054 Diaphragm Housing 84 160393 Flatwasher 6 43 199019 Diaphragm 85 160309 Hex Nut 6-32 44 196074 Air Tube-Curved 86 114572 Hose Clamp 45 163433 Air Meter - 20 87 160048 14-20 x 12 TRHM
(other sizes available) 88 160308 6-32 x 516 RDHM 89 114581 Circuit Breaker Bracket
Not Shown 90 163109 Stop Pivot 112791 DPR Pressure Gauge
41
Mfg by H C DUKE amp SON INC 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
42
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Unit does not operate 1 Fuse blown at main disconshy 1 Check fuse size check for low nect voltage if not within 10 of
nameplate rating install transformer or call power company
2 Beater motor out on overload 2 Press starter reset button and check for low voltage Check producllemperalure and overrun
3 Disconnected or broken wife 3 Check wiring and wire connecshyin electrical circuit lions repair or replace lead
wires as necessary
4 Faulty selector switch 4 Replace selector switch
5 Out on high pressure 5 Check for low waler supply or dirty air conden ser
6 Out on low pressure 6 Check limit control and freon charge
Compressor does not operate f Troubte in compressor con- I Refer to Trouble-Shootingshyor operates improperly densing circuit Compressor I Condensing
Circuit
2 Faulty capacitor assembly 2 Replace capaCitor assembly (Single phase only)
3 Faulty contactor 3 Replace contaclOr or pOints
Compressor operates but 1 Loose con neclion at motor 1 Tighten connection beater motor does not starter coil (electrical box)
2 Open starter coil 2 Replace coil
3 Faulty capacitor assembly 3 Replace capaCitor assembly (Single phase only)
Dispensed product too hard 1 Cylinder themostat erratic 1 Adjust thermo slat or replace or set too low
2 Faulty time delay relay 2 Replace time delay relay
3 Solenoid valve leaking 3 Replace solenoid valve
4 Low suction pressure 4 See chart on page 15 for adshyjustments
Leaking of mix from rear housshy 1 Damaged bealer shalt seal 1 Replace shaft seal or O-ring ing discharge tube to drip tray inside seal assy
Mig by H C DUKE amp SON INC bull 2116 Eighlh Avenue Easl Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Mix leaking at dispensing head 1 Faulty 4 O-Ring
2 Head not properly installed
1 Replace 4 O-Ring
2 Install head properly
Mix sours in cabinet 1 Cabinet thermostat setting too high
2 Cabinet thermostat detective
3 Cabinet solenoid valve deshyfective
4 Cabinet switch defective
5 Beater motor out on overshyload (cab side)
1 Adjust thermostat
2 Replace thermostat
3 Replace coil or solenoid
4 Replace cabinet switch
S Reset overload for beater motor See pg 42 unit does not operate
Cabinet too COld
Machine runs continually and Product continues to get colder
Compressor operates only when dispensing
Unit runs conMuously Product does nol reach 180 F temperature
6 Door sWitch defectIVe
1 Cabinet thermostat setting too low
2 Defective thermostat
3 Cabinet solenoid stuck open
4 Cabinet expansion valve set too low
1 Plunger switch out of adjustshyment
2 Su ction pressure too low
3 Defective plunger switch
4 Plunger switch rod engaged
5 Faulty time delay relay
6 Starter or relay contacts stuck
7 Faulty thermostat or bulb not deep enough in well
6 Replace door SWitch
1 Adjust thermostat
2 Replace thermostat
3 Replace solenoid
4 Adjust cabinet expansion valve (See pg 15)
1 Adjust plunger switch
2 Adjust expansion valve and check freon charge
3 Replace plunger switch
4 Close plunger completely
5 Replace time delay relay
I 6 Check contacts i
7 Check bulb location or replace thermostat
1 Cylinder themostat setting 1 Adjust thermostat or replace too high or thermostat deshyfective
1 Trouble in compressor I condensing system
2 ExpanSion valve setiing is too high
3 Low on refrigeranl
1 See Trouble-Shooling-CompressorI Condensing circuit
2 Adjust expansion valve
3 Check and repair leak and recharge
1
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE SLUSHbull
43
44
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Dispensed product too soft (Product temperature above 21 0 F)
1 Automatic expansion yalve incorrectly set or erratic in operation
-2 Leak in refrigeration system
resulting in little or no refrigeration
1 Adjust or replace expanSion valve
2 Pump down system or remove refrigerant charge repair leak evacuate and recharge
3 Excessive oil in system 3 Drain compressor to proper oil leyel pump down and flush system
4 Thermostat set too high taulty
or 4 Adiust thermostat or replace
Product dispenses slOWly out dispensing head
1 Reverse rotation 1 Change rotation to clockshywise from front of freezer
2 Dispensing speed adjustshyment boll too far down
2 Adjust bolt upward
3 Pum p problem 3 See pump Trouble-Shooting chart
4 Product too cold 4 See dispensed product too hard pg42
TROUBLE-SHOOTING CHART COMPRESSORICONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor will not start -hums intermittently (cycling on oyerload)
1 Improperly wired
2 Low line Yoltage
3 Open starting capacitor (single phase only)
4 High discharge pressure
1 Check wiring against diagram
2 Ask power company to increase YOltage to not less than 10 below nameplate rating or install transformer Check for inadequate wire size
3 Replace starting capacitor
4 CheCK water regulating valve setting Check water or air condenser and clean if necessary Make sure disshycharge shut-oft valve is open
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor starts but remains 1 Low line voltage 1 Ask power company to in start windings increase voltage to not less (Single phase only) than 10 below nameplate
rating or install transrormer
2 Improperly wired 2 Check wiring against drawing Check wire size
3 Running capacitor shorted 3 Check by disconnecting running capacitor
4 Starting capacitor weak 4 Check capacitor replace
5 High disCharge pressure 5 Check water regulating valve check water or air condenser and clean il necessary Check discharge shut-off valve
Starter burned out 1 Low line voltage 1 Ask power company to inshycrease voltage to not less than 10 below nameplate rating or install transformer
2 Excessive line voltage 2 Ask power company to reduce voltage to maximum of 10 over nameplate rating
Starting capacitors burn out 1 Voltage 100 low 1 Ask power company to (Single phase only) increase voltage to not less
than 10 below nameplate rating or install translonmer
2 Improper capacitor 2 Replace capacitor with properly rated capacitor as listed in manual
Running capacitors burn out 1 Excessive line voltage 1 Ask power company to reshy(Single phase only) duce line voltage to not more
than 10 above rating 01 motor
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
45
46
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Unit operates long or continuously
1 Shortage of gas
2 Dirty condenser
3 Moisture in system
4 Compressor failing
1 Repair leak and recharge
2 Clean condenser
3 Evacuate and recharge system
4 Check compressor lor proper pressures If inadequate replace compressor
Head pressure too high 1 Refrigerant overcharge
2 Air in system
3 Dirty condenser (air cooled)
4 Unit location too warm (air cooled)
5 Restricted water cooled condenser
6 Water turned off or defective
1 Purge system
2 Purge system evacuate and recharge
3 Clean condenser
4 Relocate unIt away from restriction Place nothing against back or on top of unit
5 Clean or replace condenser
6 Turn on water Or replace water regulating valve regulating valve
Head pressure too low 1 Shortage 01 refrigerant 1 Repair leak and recharge
2 Water regulating valve open 2 Adjust regulating valve too wide
Water 1I0wing through water 1 Water regulating valve 1 Replace water regulating valve waste line when unit is not in operation
defective
Noisy compressor 1 Tubing raUle 1 Bend tubes away from contact
NOTE Refer to warranty card prior to compressor replacement
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING DPR PUMP
TROUBLE PROBABLE CAUSE REMEDY
Pump will not run 1 Pump cover removed 1 Install pump cover
2 Pressure switch actuating 2 Free bulton-check spring and
bulton stuck open (in) pressure switch alignment
3 Pressure switch burned out 3 Replace pressure switch
4 Starting switch in motor bad 4 Install new starting switch
5 Motor burned out 5 Replace motor
6 Circuit breaker kicked out 6 Allow to re- set Replace it or faulty circuit breaker will not
automatically re-set
Motor runs-cam drive plate 1 Loose cam drive plate 1 Tighten set screw in cam will not turn drive plate Check woodruff key
2 Gear stripped 2 Replace gear
Pump will not shut off Mix 1 Pressure swilch actuating 1 Free button-check pressure shoots out pressure relief bulton stuck closed (out) switch alignment
2 Pressure switch stuck in 2 Replace pressure switch closed position
3 Pressure switch assy out 3 Using pressure gauge adjust of adjustment pressure
4 Dirty or plugged diaphragm 4 Disassemble and clean housing (Ref 42) housing
5 Defective O-Ring on 5 Replace O-Ring pressure relief piston
Pump will not prime 1 Insufficient supply of mix 1 Replenish mix supply
2 Piston O-ring defective-no 2 Replace piston O-Ring and suction lubricate
3 Washer valve not sealing 3 Replace washer valve DO NOT LUBRICATE
Pump primes No pressure in 1 Sleeve (Rei 29) not sealing 1 Replace sleeve DO NOT cylinder properly LUBRICATE
2 Loose hose connection on 2 Install or tighten hose clamp pump valve housing (Ref 27)
Mix shoots out Of air intake line 1 Washer valve (Ref 25) 1 Replace washer valve-DO not sealing properly NOT LUBRICATE
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOfT SERVE bull SHAKE bull SLUSH
47
48
TROUBLE-SHOOTING DPR PUMP
Too much air overrun too high-popping problems
Product dispenses slowly out of disPenSing head
1 Air meter too large (Ref 45)
2 Air leak befween mix conshytainer and mix inlet
3 Air line hose crackedshysucking air (Ref 44)
4 Pump pressure too lowshycylinder not full
1 Pump pressure too low
2 PrOduct too cold
3 Low overrun
Diaphragm housing leaking mix 1 Diaphragm housing loose
2 Diaphragm defective
Piston drive assy noisy 1 Bushing bearing worn
2 Defective gear in gear motor
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SIfAKE bull SLUSH
REMEDY
1 Replace washer valve-DO NOT LUBRICATE
2 Install clamp on hose
1 Replace O-Ring and LUBRIshyCATE
1 Clean or replace air meter
2 Replace tube
1 Install smaller air meier
2 Repair as needed
3 Replace air line hose
4 Using pressure gauge adjust pressure switch
1 Using pressure gauge adjust pump pressure
2 Check product temperatureshyshould be about 18 F
3 Check meter-if plugged-clean
1 Tighten wing nuls (Ref 41)
2 Replace diaphragm (Ref 43)
1 Replace bushing bearing (Ref 19)
2 Replace gear
TROUBLE
Mix inlet hose loses prime
Mix on top of piston
PROBABLE CAUSE
1 Washer valve (Ref 25) not sealing properly
2 Mix inlet hose loose
1 Piston O-Ring leaking (Ref 22)
No Air (Overrun) 11 Ai r meter plugged (Ref I 45)
2 Curved air tube pinched
--
DPR PUMP aI
PART NO 199019(i) PART NO 199020 reg DIAPHRAGM RUBBER SLEEVE
PART NO159295 PART NO 159282reg O-RING O-RING0
PART NO 160581reg O-RING
o PART NO PART NO
PART NO199011() 160611(8) 160582 WASHER VALVE O-RING O-RING
PISTON
cJ
DIAPHRAGM HOUSING
CYLINDER
VALVE HOUSIN6 ASSEMBLY
PUUPOUTLET
DRAIN PORT
I PHNO309-755-4553 O-RING CHART HCDUKEampSONINC I
1 I84Z08 SOFT SERVE DISPENSING HEADS I
o PART NO 1605620
PAR~159--1b
PART NO PART NO 1605841 59295()
I PHNO 309-755-4553 O-R ING CHART HCDUKEampSONINC I
- Cover
- Table of Contents
- Safety
- Uncrating amp Inspection13
- Explanation of Electrical Controls
- Operation of Machine
- General Information
- Maintenance amp Adjustment
- Parts Breakdowns
- Trouble-Shooting Charts
- O-ring Charts
-
THERMOSTAT_________ Turn knob clockwise to make product colder
Differential adjustment
copy
COLDER ~ reg
copy5
2 6Igt
1 7 OFF
copy
THIS ASSEMBLY USED ON LEFT SIDE OF UNIT
RIGHT SIDE USES THIS ASSEMBLY WIO THERMOSTAT A (CAB THERMOSTAT)
MIg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
17
18
MAINTENANCE AND ADJUSTMENT
ONLY TO BE PERFORMED BY A QUALIFIED SERVICE TECHNICIAN
WARNING
MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFF POSITION AND THAT THE MAIN POWER SUPPLY IS DISCONNECTED BEFORE REMOVING PANELS
LUBRICATION INSTRUCTIONS
FAN MOTOR (Air Condenser) Lubricate annually with SAE 10 motor oil in the oil cups
CAUTION DO NOT OVER-LUBRICATE OVER-LUBRICATION CAN DAMAGE MOTOR
GEAR REDUCER The gear reducers are heavy duty worm-geared units manufactured to HC Duke specifications II traces 01 oil are found in the immediate area around the reducer repair the leak (usually an oil seal) and check the oil level When adding oil use only synthetic gear lube in the reducer
NOTE This is a special oil and will not mix with a petroleum base oil Contact your distributor when this oil is needed This oil should be changed at least once a year
OIL LEVEL PLUG
PROPER OIL LEVEL
OIL DRAIN USE SPECIAl PLUG OIL ONLY
USE SPECIAL LOILON=LY-- I
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH ~1U8A
MAINTENANCE AND ADJUSTMENT ONLY TO BE PERFORMED BY A QUALIFIED SERVICE TECHNICIAN
WARNING
MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFFA POSITION AND THAT THE MAIN POWER SUPPLY IS DISCONNECTED BEFORE REMOVING PANELS shy
BEATER MOTOR Beater motors are either single or three phase Capacitor starting is used on the single phase units The beater motor should be inspected and cleaned
WATER COOLED CONDENSER Depending on the condition of your water the condenser on your CAB machine may require cleaning from time to time Usually a restricted flow of water resulting in a high head pressure indicates a dirty condenser The condenser should be flushed out with an acid solution by a qualified service technician
AIR COOLED CONDENSERS At least once a month the face area of the condenser should be inspected for accumulation of dirt and dust Surface dust and dirt can usually be removed with a stiff brush andor vacuum cleaner After brushing hold a light between the fan blades and look through the condenser from the opposite side This procedure will locate those areas where accumulated dirt has lodged between the condenser fins To clean these areas obtain a small tank of nitrogen or C02 with a needle control valve or pressure regulator with a small hose attached and proceed as follows
(1) Place a damp towel or cloth over the face area of the condenser
(2) Open the control valve or regulator on the tank releasing pressure to the coil from the back side cleaning the condenser
(3) Check the condenser periodically with the light and continue the treatment until the fins are clean
For maximum performance replace all worn O-Rings Seals Blades etc
CAUTION USE ORIGINAL OR AUTHORIZED REPLACEMENT PARTS ONLY WITH THIS FREEZER
Mig by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline illinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
19
20
PULLEY ALIGNMENT AND BELT TENSION ONLY TO BE PERFORMED BY A QUALIFIED SERVICE TECHNICIAN
WARNING
A MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFF POSITION AND THAT THE MAIN POWER SUPPLY IS DISCONNECTED
Remove the side panels to expose the pulleys and belts
Check the alignment of the beater motor pulley and gear reducer pulley by placing a straight edge across the faces of the two pulleys If the pulleys are not aligned adjust as necessary until proper alignment is obtained
Depress the belts with a finger at a point midway between the two pulleys When properly adjusted the belts should depress 12 from its normal position with approximately 5 pounds of pressure If the belts are too tight or too loose adjust as necessary until proper belt deflection is obtained Loosen four (4) bolts which hold the motor mounting plate to the frame With these loose adjust tension bolt in or out as required to obtain proper belt tension Retighten bolts
BELTS
Periodically inspect the belts If they are worn excessively replace both belts For best results it is advisable to replace both belts as they are manufactured in matched sets
SCRAPER BLADES
NOTE Be sure to purge all of the sanitizer from the mix system before operating the freezer (see page 12) Failure to completely remove sanitizer or water trom the freezing cylinder before placing the machine in the Automatic position may cause blade breakage and damage the freezer
o o
NEW BlADE WORN BLADE
Replace blades if worn 316 or more
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
END PLAY FOR BEATER DRIVE COUPLING
It is very important that the drive coupling located on the gear reducer be set properly Referring to the Drive Coupling Illustration the following procedure should be followed in setting the end play
WARNING
MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFF POSITION AND THAT THE ELECTRICAL POWER TO THE MACHINE IS DISCONNECTED SO THAT THE UNIT WILL NOT OPERATE
------
DRIVE COUPLING ILLUSTRATION
REF DESCRIPTION REF DESCRIPTION 1 Gear Reducer 6 Reducer Mounting Plate 2 Beater Shaft 7 Set Screws 3 Shaft Seal 8 Bolt Gear Reducer 4 Drive Coupling 9 Bolt Reducer Mounting Plate 5 Spacer 10 Key
11 Output Shaft
Improper drive coupling spacing will damage the beater shaft dispensing head and drive coupling When checking end play settings or replacing a coupling proceed as follows
REMOVING COUPLING
WARNING
DISCONNECT MAIN POWER SUPPLY
Mig by H C DUKE amp SON INC bull 2116 Eighth Allenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SO SERVE bull SHAKE bull SLUSH
21
22
(1) Remove Beater Shaft (Ref 2)
(2) Remove both drive belts (not shown)
(3) Remove gear reducer bolts (Ref 8) Six (6) bolts are located around the face of the reducer
NOTE Remove the top bolt last holding the bottom of the reducer as you do so
(4) Remove the gear reducer (Ref 1) and place-on table or bench
(5) Replace two (2) bolts (Ref 8) one (1) at the top and one (1) at the bottom so that the reducer cover will not come off while the coupling is changed
(6) Loosen the four (4) set screws (Ref 7) and remove the drive coupling (Ref 4) Should the coupling be stuck tight to the ouput shaft lightly tap the coupling from the back with a hammer and bar Sometimes due to age this coupling will stick so tight it will have to be removed with a pulley removing tool or a wheel puller
(7) Remove the key (Ref 10)
INSTALLING THE NEW COUPLING
(1) Clean gear reducer output shaft (Ref 11) with fine emery cloth and slide the new drive coupling on the reducer shaft The coupling should slide on the shaft all the way without the key If the coupling doesnt slide completely on check both coupling and reducer shaft for burrs When a smooth sliding fit is achieved remove coupling and proceed with final assembly
(2) Place key (Ref 10) in keyway slot on the reducer output shaft Keep the key flush with the front end of the output shaft (Ref 11)
(3) Slide the coupling (Ref 4) on the output shaft until it bottoms out on the shaft Leave the four (4) set screws loose as the coupling will have to be adjusted
(4) Remove the two (2) bolts added in preceding Step 5
(5) Place one (1) gear reducer bolt (Ref 8) in the top hole of the cylinder mounting plate
(6) Insert gear reducer into cylinder mounting plate and start top bolt (Ref 8) Do nol tighten completely Now insert the other bolts one at a time When all bolts are in tighten each boll
NOTE Due to very close tolerance between the gear reducer and cylinder mounting plate no alignment is required when Installing the reducer When the reducer bolts are tightened the reducer will seH-align with the cylinder
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
(7) Insert the beater shaft (Ref 2) with the shaft seal and blades into the cylinder and engage beater shaft in the drive coupling Place bushing on front of beater shaft
(8) Tape a dime (10 cents) to the back of the dispensing head in the very center at the point where the beater shaft touches the dispensing head The dime is used to acquire the proper end play setting on the drive coupling which is approximately 332
(9) Place the dispensing head into the cylinder and tighten with the hand knobs Important make sure hand knobs are tight and head is against the end of the cylinder tube
(10) Slide the drive coupling (Ref 4) forward until it is tight against the beater shaft and lock into place the four (4) set screws (Ref n
(11) Remove the dime from the back of the dispensing head
(12) Replace the drive belts
(13) Turn on electrical power
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
23
PANEL BREAKDOWN - 917CAB
~--~
3
REF PART No 1A 114544 1B 112991 2A 136075 2B 136102
3A 137027 3A 137028
3A 136105 3B 136103
3B 134817 4 134818
4 136101 5A 114780
5A 113570 5B 112967
6 112960 7 133291
24 A 917CAB only
I
dJ
DESCRIPTION Frame ssmiddoty Frame ASsmiddoty Lower Side Panel Lower Side Panel LH Side Panel RH Side Panel Upper Side Panel Upper Side Panel Upper Side Panel Rear Panel Rear Panel Top Cover ASsmiddoty Top Cover ASsmiddoty Top Cover ASsmiddoty Filler Panel ASsmiddoty Top Filler Strip
B bull 44 CAB only
~
[At 16 lt0
REF 8
9 10 11 12 12A 13
14 15 16 16A
Air Cooled only
PART No DESCRIPTION 132687 Dispense Panel 134247-01 Dispense Panel Cab-W
Drip Tray (See Pg 35) 114260-01 Door Assmiddoty wIHinges 132444-01 Left Hand Filler Strip 162045 Upper Hinge 162052 Spring LH 162046 Lower Hinge 160026 Screw 160020 Bolt 160139 Washer 110205 Syrup Jar Enclosure 160563-01 Door Gasket 01-Groove) 159174 Drip Tray Button 160293 Clip for Button
Water Cooled only
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
~~
1 ~~o ~o
)
cp I
L~
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 114538 Frame Assy 10 162045 bull Upper Hinge 2 136289 Side Panel LH lOA 162052 Spring LH 3 136313 Rear Panel 11 162046 Lower Hinge 4 114006 Top Panel AC llA 160026 Screw 4A 114428 Top Panel WC l1B 160020 Bolt 4B 114157 Top Panel AC Remote l1C 160139 Washer 5 113983 Front Panel Assy 927CAB 12 136216 Side Panel RH 5A 113985 Front Panel Assy 957cAB 13 160563 Door Gasket (V-Groove) 6 130021 Rear Corner Channel RH 14 159174 Drip Tray Button 6A 135254 Rear Corner Channel LH 14A 160293 Clip for Button 7 137228 Dispensing Panel 162108 Stop Pin (Screw In) 8 Drip Tray (See Pg 35) 136199 Door Pull 9 114260 Door Assy wHinges
25
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
SOFT SERVE CAB ELECTRICAL BOX
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 Contactor (Order By Freezer 5 150463 Selector Switch
Serial Number) 6 159235 Toggle Switch (Pump) 2 Overload (Order By Freezer 7 150456 Spigot Switch
Serial Number) 7A 136124 Button - Spigot Switch 2A Heater Coil (Order By Freezer 7B 162302 Spring - Spigot Switch
Serial Number) 8 150553 Pilot Light - Amber 3 Starter (Order By Freezer 9 150552 Pilot Light - Red
Serial Number) 10 161026 Thermometer (Not Shown) 4 150208 Timer
26
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Pointed u
- - --- -
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prifllcl If USA
In-
ca ~ Q ltC wr w I
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2B
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SOFT-SERVE - SINGLE HEAD CAB
REF PART No 1 151351
2 3 4 5 6 151044
151052 7
8 155039 9 155400 10 155117
11 151084
12A 159021 13 155401 13A 155423 14 155403 15 155422
16 154976 16 154975 17 159203 18 155051 19 112901
155410 20 155044
151348
DESCRIPTION Capacitor Relay Assembly (single phase)
150247 Start Capacitor
150249 Run Capacitor 150245 Relay Motor Capacitors (order by freezer serial no) Gear Reducer (see gear reducer breakdown page 36) Driven Pulley (order by freezer serial no) Belt (order by freezer serial no) Motor 1-phase 230 volt Motor 3-phase 208230 volt Driver Pulley (order by freezer serial no)
Water Condenser Automatic Expansion Valve (Cylinder) Air Condenser
Condenser Fan Motor
Condenser Fan Blade High Pressure Cut-Out shyHigh Pressure Cut-Out shyLow Pressure Cut-Out Solenoid Valve
Compressor 230160
AC WC
Compressor 208-230360 Sight Glass Drier (38) Receiver Tank Assembly Water Valve (not shown) Service Valve Compressor Mounting Kit
Note I) lt0 For All 50-Cycle Freezers Order By Freezer Serial Number
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Printad I usA
30
c W -I o o o a w ~ 3
III
~ W -I III J o C
w gta w en u o en
SOFT-SERVE - DOUBLE CAB - WATER COOLED REF PART No DESCRIPTION 1 155026 Water Condenser (B-side) 1 A 155039 Water Condenser (A-side) 2 159203 Sight Glass 3 155051 Drier (38) 4 155400 Automatic Expansion Valve (Cylinder) 5 Gear Reducer (see gear reducer breakdown page 36) 6 155410 Water Valve 7 155423 High Pressure Cut-Out 8 155403 Low Pressure Cut-Out 9 154976 Compressor 230160
151351 Capacitor Relay Assembly (Single Phase) 150247 Start Capacitor 150249 Run Capacitor 150245 Relay
9A 154975 Compressor 208-230360~-11 NOT USED ON THIS MODEL 12 155442 Low Temp Control 13 Driven Pulley (order by freezer serial no) 14 Belt (order by freezer serial no) 15 Driver Pulley (order by freezer serial no) 16 155422 Solenoid Valve 17 151044 Motor 1 phase 230 volt 17A 151052 Motor 3 phase 208230 volt 18 Motor Capacitors single phase only (order by freezer serial no)
Note For All 50-Cycle Freezers Order By Freezer Serial Number
cgt
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH _InU5A
32
c W J o o o -a oCt
aI oCt o W I m ) o c w gta w Ch t--LL o Ch
SOFTmiddotSERVE bull DOUBLE CAB - AIR COOLED REF PART No 1 155120 2 159020 3 151080 4 155400 5 6 159203 7 155051 8 112901 9 151044 9A 151052 10 11 12 14 154976
14A 154975 15 155401 16 155403 17 155443 18 155442 19
21 155422
DESCRIPTION Condenser Fan Blade Fan Motor Automatic Expansion Valve (Cylinder) Reducer (see gear reducer breakdown page 36) Sight Glass Drier Receiver Assembly Motor 1-Phase 230 Volt Motor 3-Phase 208230 Volt Driven Pulley (order by freezer serial no) Belt (ordr by freezer serial no) Driver Pulley (order by freezer serial no) Compressor 230160 151351 Capacitor Relay Assembly (Single Phase)
150247 Start Capacitor 150249 Run Capacitor 150245 Relay
Compressor 208-230360 High Pressure Cut-Out Low Pressure Cut-Out Cabinet Thermostat Low Temp Thermostat NOT USED ON THIS MODEL Motor Capacitors single phase only (order by freezer serial no) Solenoid Valve
Note For All 50-Cycle Freezers Order By Freezer Serial Number
Vl Vl
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prinled In USA
CAB PARTS BREAKDOWN
REF PART No DESCRIPTION PART No DESCRIPTION 1 155109 Cabinet Coil 136297 Condensate Pan (Not Shown) 1A 155113 Motor Cabinet Fan 196092 Mix Tank 7-12 Gal 1B 155099 Fan Blade Cabinet Coil 113997 Front Lid Mix Container
7-12 Gal 136248-01 Rear Lid Mix Cont 7-12 Gal
10 155416 CAB Automatic Expansion 130092 Mix Tube Valve 196028 Mix Tank 10 Gal
137119 Probe 11 -1 4 shy1E 155114 Fan Grill amp Bracket 7-12 Gal Container 1F 155116 Knob 137119-01 Probe 10-34 shy2 113898 DPR Pump Less Motor 7-12 amp 10
(see pump breakdown Gal Container pg 38) 137119-02 Probe 10-14 shy
3 196061 Mix Hose (sold by the foot) 10 Gal Container 4 150416 Door Switch 137120 Base Probe Mtg 4A 114630 Actuator Door Switch 160500 O-Ring
(Not Shown) 114572 Hose Clamp (Not Shown) 5 150527 Retractable Cordset 34
MIg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prlmd UsA
MERCHANDISING ASSY
PART No 115108 115107
PART No
196107-01 196108-01 114610 114608 115132 199030
PART No 162105 162106 112978 158004 158021 158022 158078 158000 158056 158000A 158014 158014A 161000 158049
DESCRIPTION 2S Merchandiser-927-957-978CAB 24 Merchandiser-917CAB
DRIP TRAY
DESCRIPTION
24 Drip Tray-917CAB 26- Drip Tray-927-957-978CAB 24 Tray Insert-917CAD 26 Tray Insert-978CAB-927CAB 26 Tray Insert-957CAB Rubber Bumper (only)
DESCRIPTION Caster With Brake Caster Without Brake Leg-6 4 Cylinder Brush Mix Hose Brush 58 Dia w6 Ft Handle 14 Pump Brush Drain Tube Brush Petrol Gel (12 tube carton) Petrol Gel (6 tube carton) Pe1rol Gel (per tube) Stera Sheen (per case) Stera Sheen (per jar) Pocket Thermometer 1 Dial Z32 Overrun Scale
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SNAKE bull SLUSH
35
36
GEAR REDUCERS Order By Freezer Serial Number
Model 3 CB
153345 5-1 Ratio B side 153004 High Speed Cup ~ (2 ea required) 153005 High Speed Bearing (2 ea required) 153008 Slow Speed Cup (2 ea required) 153009 Slow Speed Bearing (2 ea required) 153052 Slow Speed Seal (2 ea required) 153054 High Speed Seal (2 ea required) 153313 Brass Gear 5-1 Ratio 153336 Slow Speed Shaft Only 5-1 Ratio 153316 Worm Gear On Shaft 5-1 Ratio 114873 Gasket Set
Model 4 CB
153342 10-1 Ratio A side 153343 10-1 Ratio B side
153014 High Speed Cup (2 ea required) 153015 High Speed Bearing (2 ea required) 153011 Slow Speed Cup (2 ea required) 153012 Slow Speed Bearing (2 ea required) 153051 Slow Speed Seal (2 ea required) 153053 High Speed Seal (2 ea required) 153349 Brass Gear 10-1 Ratio 153339 Slow Speed Shaft OnIy 10-1 Ratio 153347 Worm Gear on Shaft 10-1 Ratio 114874 Gasket Set
Winlwin Model
153341 Wintwin 10-1 Ratio A and B Side
153014 High Speed Cup (2 ea required) 153015 High Speed Bearing (2 ea required) 153011 Slow Speed Cup (2 ea required) 153012 Slow Speed Bearing (2 ea required) 153051 Slow Speed Seal (2 ea required) 153053 High Speed Seal (2 ea required) 153349 Brass Gear 153350 Slow Speed Shaft Only 153348 Worm Gear on Shaft 11 4874 Gasket Set
158055 Gear Reducer OU 51001
Drive Coupling (Order By Machine Serial Number)
Mfg by H C DUKE amp SON INC bull 2115 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
917 amp 927 Beater Shaft Assembly
957 Beater Shaft
Item Part No Description
1 196079 Bushing-Cylinder 2 114752 Beater-Assy Long (Shaft) 3 137334 Blade-Scraper Soft Serve 4- 160500 O-Ring (Shaft Seal) 5- 133098 Bushing (Washer-Shaft Seal) 6 160557 Seal-Beater Shaft
-Items 4-6 111875 Seal-Assy Shaft (Complete)
31
1 113438 2 196079 3 137334 4- 160500 5- 133098 6 160557
-Items 4-6 111875
Shaft-Assy Beater Bushing-Cylinder Blade-Scraper O-ring (Shaft Seal) Washer-Shaft Seal (Bushing) Seal-Beater Shaft (Cup)
Seal-Assy Shaft (Complete)
ao
DISPENSING HEAD
16
r
Q
--~
-----_
REF PART No DESCRIPTION Tl3o 6 119928- Door Assembly shy Complete (Items 7-14) 11637- 7 196688 Door shy Less Parts
a 134921 Spigot shy Less Extension 9 134922 Handle Extension shy Spigot
10 162624 Handle 11 159295 OmiddotRings shy Spigot (Lots of 5)12 159309 O-ring shy 4 - Door 13 196066 Air Relief Screw 14 160621 a-Ring shy Air Relief Screw (Lots of 5)15 136126 Rod - Spigot Switch shy 917 8 927 16 136798 HMdKnob
38
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illmols 61244
SUPERIOR QUAUlY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
Duke Soft Serve Freezer Models 917R and 927RN
5 -______
7
6
UPDATEDDispense Head Assembly
Item Part No
115130 1 116321 2 160583 3 115129 4 160562 5 136126 6 134921 SA 162624 68 134922 7 159295 8 160584 9 162625 9A 114341 10 196185 10A 137870 108 136713
116410
Includes items 1-4 6-8
Description
Head-Assy Dispense (Complete) Head-Assy wActualor O-ring (Head-4-inch) Bleeder-Assy (Air Relief Plug) O-ring (Bleeder-Assy) Rod-Spigot Switch Spigot-long Single Handle-Black Tapered Handle-Spigot (Stainless Steel) O-ring (Spigot) O-ring (Extension) Knob-Hand Stud-Assy Cylinder 1-15116 inch (not shown) Nouie-Slar Adapter (accessory) Adapter-Yogurt Nozzle (not shown) Extension-Spigot (accessory-cake not shown) Kit-Dispense Head Switch
( Use only original or authorized replacement parts with this freezer )
DISPENSING HEAD
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH uu
REF PART No 114765
1 196082 2 114313 3 137018 5 136618 6 162626 8 134499 9 162625
10 115129 11 136794 12 159309 13 159295 14 160562 15 136713 16 160584
DESCRIPTION Door Assy-Complete Door-Less Parts Spigot Assy-Side Spigot Only-Center Extension Only-Center Handle Stud-Handle Stop Hand Knob Air Re1ief-Assy Rod-Spigot Switch O-Ring-4-Door O-Ring-Spigot O-Ring-Air Relief Extension-Spigot a-Ring
39
40
PUMP MOTOR AND HOUSING ASSEMBLY SAFETY SWITCH ASSEMBLY
PRESSURE SWITCH ASSEMBLY ijreg~
I
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH IIIUaA
CAB DPR PUMP BREAKDOWN
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 196091 Pump Base 46 114009 Pump Cover 2 136088 Pump Support 47 113464 Base Bracket Assembly 3 150784 Strain Relief Bushing 48 135725 Stud 1-78 4 Power Cord 49 160131 516 Flatwasher 5 160075 10-24 x 38 Screw 50 160293 Speed Clip 6 135416 Cover Electric Box 51 135724 Button 7 160141 14 Lockwasher 52 160140 10 Lockwasher 8 160491 14-20 x 34 Socket Screw 53 135726 Stud 3 9 113497 Motor Cord 18-3 SJT 54 160109 10-24 Hex Nut 10 151127 Motor 40 RPM Soft Serve 55 135729 Switch Actuator 11 160023 14-20 x 1 Screw 56 135731 Stop - Max Pressure 12 153317 Half Moon Key 57 162315 Spring - Soft Serve 13 112925 Cam Drive Plate Assembly 58 160138 10 Flat Washer 14 160495 14-20 x 14 Set Screw 59 160304 10-24 Stop Nut 15 160369 Pin 60 150456 Pressure Switch 16 134614 Swing Clamp 61 135744 Insulator - Fiber 17 134521 Adjusting Clamp 62 160381 6-32 x 1 Socket Screw 18 160488 Thumb Screw 63 160393 6 Flatwasher 19 134604 Bearing Bushing 64 160146 6 Lockwasher 20 134602 Connecting Rod 65 160309 6-32 Hex Nut 21 134601 Piston 66 160006 6-32 x 14 Screw 22 159295 O-Ring 67 160001 8-32 x 38 Screw 23 134603 Wrist Pin 68 160470 8 Lockwasher 24 136089 Cylinder 69 150481 Circuit Breaker 25 199011 Washer Valve 70 135727 Switch Bracket 26 159282 O-Ring 71 136311 Spacer - Cover Switch 27 113839 Pump Valve Housing 72 160028 Truss Head Screw
Assembly (Metal) 14-20 x 34 SST 28 160582 O-Ring 73 160141 Lockwasher 14 29 199020 Sleeve Rubber 74 160104 Hex Nut 14-20 30 135793 Retainer Clip 75 136312 Button Guard 31 135791 Adapter Hose Outlet 76 160020 Hex Hd Cap Screw 32 160581 O-Ring 14-20 x 1 SST 33 135790 Piston 77 113869 Switch Bracket 34 162308 Spring Soft Serve 78 136110 Button Cover Switch 35 135792 Drain Port 79 162314 Spring 36 160611 O-Ring 80 150456 Switch Pump Safety 37 135896 Hose 24 81 135004 Switch Cover 38 160738 Hose Clamp 82 160296 Screw RH 39 136288 Keeper 6-32 x 1-14 40 160554 O-Ring 83 160146 Lockwasher 6 41 160368 Wing Nut Int Tooth 42 130054 Diaphragm Housing 84 160393 Flatwasher 6 43 199019 Diaphragm 85 160309 Hex Nut 6-32 44 196074 Air Tube-Curved 86 114572 Hose Clamp 45 163433 Air Meter - 20 87 160048 14-20 x 12 TRHM
(other sizes available) 88 160308 6-32 x 516 RDHM 89 114581 Circuit Breaker Bracket
Not Shown 90 163109 Stop Pivot 112791 DPR Pressure Gauge
41
Mfg by H C DUKE amp SON INC 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
42
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Unit does not operate 1 Fuse blown at main disconshy 1 Check fuse size check for low nect voltage if not within 10 of
nameplate rating install transformer or call power company
2 Beater motor out on overload 2 Press starter reset button and check for low voltage Check producllemperalure and overrun
3 Disconnected or broken wife 3 Check wiring and wire connecshyin electrical circuit lions repair or replace lead
wires as necessary
4 Faulty selector switch 4 Replace selector switch
5 Out on high pressure 5 Check for low waler supply or dirty air conden ser
6 Out on low pressure 6 Check limit control and freon charge
Compressor does not operate f Troubte in compressor con- I Refer to Trouble-Shootingshyor operates improperly densing circuit Compressor I Condensing
Circuit
2 Faulty capacitor assembly 2 Replace capaCitor assembly (Single phase only)
3 Faulty contactor 3 Replace contaclOr or pOints
Compressor operates but 1 Loose con neclion at motor 1 Tighten connection beater motor does not starter coil (electrical box)
2 Open starter coil 2 Replace coil
3 Faulty capacitor assembly 3 Replace capaCitor assembly (Single phase only)
Dispensed product too hard 1 Cylinder themostat erratic 1 Adjust thermo slat or replace or set too low
2 Faulty time delay relay 2 Replace time delay relay
3 Solenoid valve leaking 3 Replace solenoid valve
4 Low suction pressure 4 See chart on page 15 for adshyjustments
Leaking of mix from rear housshy 1 Damaged bealer shalt seal 1 Replace shaft seal or O-ring ing discharge tube to drip tray inside seal assy
Mig by H C DUKE amp SON INC bull 2116 Eighlh Avenue Easl Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Mix leaking at dispensing head 1 Faulty 4 O-Ring
2 Head not properly installed
1 Replace 4 O-Ring
2 Install head properly
Mix sours in cabinet 1 Cabinet thermostat setting too high
2 Cabinet thermostat detective
3 Cabinet solenoid valve deshyfective
4 Cabinet switch defective
5 Beater motor out on overshyload (cab side)
1 Adjust thermostat
2 Replace thermostat
3 Replace coil or solenoid
4 Replace cabinet switch
S Reset overload for beater motor See pg 42 unit does not operate
Cabinet too COld
Machine runs continually and Product continues to get colder
Compressor operates only when dispensing
Unit runs conMuously Product does nol reach 180 F temperature
6 Door sWitch defectIVe
1 Cabinet thermostat setting too low
2 Defective thermostat
3 Cabinet solenoid stuck open
4 Cabinet expansion valve set too low
1 Plunger switch out of adjustshyment
2 Su ction pressure too low
3 Defective plunger switch
4 Plunger switch rod engaged
5 Faulty time delay relay
6 Starter or relay contacts stuck
7 Faulty thermostat or bulb not deep enough in well
6 Replace door SWitch
1 Adjust thermostat
2 Replace thermostat
3 Replace solenoid
4 Adjust cabinet expansion valve (See pg 15)
1 Adjust plunger switch
2 Adjust expansion valve and check freon charge
3 Replace plunger switch
4 Close plunger completely
5 Replace time delay relay
I 6 Check contacts i
7 Check bulb location or replace thermostat
1 Cylinder themostat setting 1 Adjust thermostat or replace too high or thermostat deshyfective
1 Trouble in compressor I condensing system
2 ExpanSion valve setiing is too high
3 Low on refrigeranl
1 See Trouble-Shooling-CompressorI Condensing circuit
2 Adjust expansion valve
3 Check and repair leak and recharge
1
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE SLUSHbull
43
44
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Dispensed product too soft (Product temperature above 21 0 F)
1 Automatic expansion yalve incorrectly set or erratic in operation
-2 Leak in refrigeration system
resulting in little or no refrigeration
1 Adjust or replace expanSion valve
2 Pump down system or remove refrigerant charge repair leak evacuate and recharge
3 Excessive oil in system 3 Drain compressor to proper oil leyel pump down and flush system
4 Thermostat set too high taulty
or 4 Adiust thermostat or replace
Product dispenses slOWly out dispensing head
1 Reverse rotation 1 Change rotation to clockshywise from front of freezer
2 Dispensing speed adjustshyment boll too far down
2 Adjust bolt upward
3 Pum p problem 3 See pump Trouble-Shooting chart
4 Product too cold 4 See dispensed product too hard pg42
TROUBLE-SHOOTING CHART COMPRESSORICONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor will not start -hums intermittently (cycling on oyerload)
1 Improperly wired
2 Low line Yoltage
3 Open starting capacitor (single phase only)
4 High discharge pressure
1 Check wiring against diagram
2 Ask power company to increase YOltage to not less than 10 below nameplate rating or install transformer Check for inadequate wire size
3 Replace starting capacitor
4 CheCK water regulating valve setting Check water or air condenser and clean if necessary Make sure disshycharge shut-oft valve is open
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor starts but remains 1 Low line voltage 1 Ask power company to in start windings increase voltage to not less (Single phase only) than 10 below nameplate
rating or install transrormer
2 Improperly wired 2 Check wiring against drawing Check wire size
3 Running capacitor shorted 3 Check by disconnecting running capacitor
4 Starting capacitor weak 4 Check capacitor replace
5 High disCharge pressure 5 Check water regulating valve check water or air condenser and clean il necessary Check discharge shut-off valve
Starter burned out 1 Low line voltage 1 Ask power company to inshycrease voltage to not less than 10 below nameplate rating or install transformer
2 Excessive line voltage 2 Ask power company to reduce voltage to maximum of 10 over nameplate rating
Starting capacitors burn out 1 Voltage 100 low 1 Ask power company to (Single phase only) increase voltage to not less
than 10 below nameplate rating or install translonmer
2 Improper capacitor 2 Replace capacitor with properly rated capacitor as listed in manual
Running capacitors burn out 1 Excessive line voltage 1 Ask power company to reshy(Single phase only) duce line voltage to not more
than 10 above rating 01 motor
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
45
46
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Unit operates long or continuously
1 Shortage of gas
2 Dirty condenser
3 Moisture in system
4 Compressor failing
1 Repair leak and recharge
2 Clean condenser
3 Evacuate and recharge system
4 Check compressor lor proper pressures If inadequate replace compressor
Head pressure too high 1 Refrigerant overcharge
2 Air in system
3 Dirty condenser (air cooled)
4 Unit location too warm (air cooled)
5 Restricted water cooled condenser
6 Water turned off or defective
1 Purge system
2 Purge system evacuate and recharge
3 Clean condenser
4 Relocate unIt away from restriction Place nothing against back or on top of unit
5 Clean or replace condenser
6 Turn on water Or replace water regulating valve regulating valve
Head pressure too low 1 Shortage 01 refrigerant 1 Repair leak and recharge
2 Water regulating valve open 2 Adjust regulating valve too wide
Water 1I0wing through water 1 Water regulating valve 1 Replace water regulating valve waste line when unit is not in operation
defective
Noisy compressor 1 Tubing raUle 1 Bend tubes away from contact
NOTE Refer to warranty card prior to compressor replacement
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING DPR PUMP
TROUBLE PROBABLE CAUSE REMEDY
Pump will not run 1 Pump cover removed 1 Install pump cover
2 Pressure switch actuating 2 Free bulton-check spring and
bulton stuck open (in) pressure switch alignment
3 Pressure switch burned out 3 Replace pressure switch
4 Starting switch in motor bad 4 Install new starting switch
5 Motor burned out 5 Replace motor
6 Circuit breaker kicked out 6 Allow to re- set Replace it or faulty circuit breaker will not
automatically re-set
Motor runs-cam drive plate 1 Loose cam drive plate 1 Tighten set screw in cam will not turn drive plate Check woodruff key
2 Gear stripped 2 Replace gear
Pump will not shut off Mix 1 Pressure swilch actuating 1 Free button-check pressure shoots out pressure relief bulton stuck closed (out) switch alignment
2 Pressure switch stuck in 2 Replace pressure switch closed position
3 Pressure switch assy out 3 Using pressure gauge adjust of adjustment pressure
4 Dirty or plugged diaphragm 4 Disassemble and clean housing (Ref 42) housing
5 Defective O-Ring on 5 Replace O-Ring pressure relief piston
Pump will not prime 1 Insufficient supply of mix 1 Replenish mix supply
2 Piston O-ring defective-no 2 Replace piston O-Ring and suction lubricate
3 Washer valve not sealing 3 Replace washer valve DO NOT LUBRICATE
Pump primes No pressure in 1 Sleeve (Rei 29) not sealing 1 Replace sleeve DO NOT cylinder properly LUBRICATE
2 Loose hose connection on 2 Install or tighten hose clamp pump valve housing (Ref 27)
Mix shoots out Of air intake line 1 Washer valve (Ref 25) 1 Replace washer valve-DO not sealing properly NOT LUBRICATE
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOfT SERVE bull SHAKE bull SLUSH
47
48
TROUBLE-SHOOTING DPR PUMP
Too much air overrun too high-popping problems
Product dispenses slowly out of disPenSing head
1 Air meter too large (Ref 45)
2 Air leak befween mix conshytainer and mix inlet
3 Air line hose crackedshysucking air (Ref 44)
4 Pump pressure too lowshycylinder not full
1 Pump pressure too low
2 PrOduct too cold
3 Low overrun
Diaphragm housing leaking mix 1 Diaphragm housing loose
2 Diaphragm defective
Piston drive assy noisy 1 Bushing bearing worn
2 Defective gear in gear motor
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SIfAKE bull SLUSH
REMEDY
1 Replace washer valve-DO NOT LUBRICATE
2 Install clamp on hose
1 Replace O-Ring and LUBRIshyCATE
1 Clean or replace air meter
2 Replace tube
1 Install smaller air meier
2 Repair as needed
3 Replace air line hose
4 Using pressure gauge adjust pressure switch
1 Using pressure gauge adjust pump pressure
2 Check product temperatureshyshould be about 18 F
3 Check meter-if plugged-clean
1 Tighten wing nuls (Ref 41)
2 Replace diaphragm (Ref 43)
1 Replace bushing bearing (Ref 19)
2 Replace gear
TROUBLE
Mix inlet hose loses prime
Mix on top of piston
PROBABLE CAUSE
1 Washer valve (Ref 25) not sealing properly
2 Mix inlet hose loose
1 Piston O-Ring leaking (Ref 22)
No Air (Overrun) 11 Ai r meter plugged (Ref I 45)
2 Curved air tube pinched
--
DPR PUMP aI
PART NO 199019(i) PART NO 199020 reg DIAPHRAGM RUBBER SLEEVE
PART NO159295 PART NO 159282reg O-RING O-RING0
PART NO 160581reg O-RING
o PART NO PART NO
PART NO199011() 160611(8) 160582 WASHER VALVE O-RING O-RING
PISTON
cJ
DIAPHRAGM HOUSING
CYLINDER
VALVE HOUSIN6 ASSEMBLY
PUUPOUTLET
DRAIN PORT
I PHNO309-755-4553 O-RING CHART HCDUKEampSONINC I
1 I84Z08 SOFT SERVE DISPENSING HEADS I
o PART NO 1605620
PAR~159--1b
PART NO PART NO 1605841 59295()
I PHNO 309-755-4553 O-R ING CHART HCDUKEampSONINC I
- Cover
- Table of Contents
- Safety
- Uncrating amp Inspection13
- Explanation of Electrical Controls
- Operation of Machine
- General Information
- Maintenance amp Adjustment
- Parts Breakdowns
- Trouble-Shooting Charts
- O-ring Charts
-
18
MAINTENANCE AND ADJUSTMENT
ONLY TO BE PERFORMED BY A QUALIFIED SERVICE TECHNICIAN
WARNING
MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFF POSITION AND THAT THE MAIN POWER SUPPLY IS DISCONNECTED BEFORE REMOVING PANELS
LUBRICATION INSTRUCTIONS
FAN MOTOR (Air Condenser) Lubricate annually with SAE 10 motor oil in the oil cups
CAUTION DO NOT OVER-LUBRICATE OVER-LUBRICATION CAN DAMAGE MOTOR
GEAR REDUCER The gear reducers are heavy duty worm-geared units manufactured to HC Duke specifications II traces 01 oil are found in the immediate area around the reducer repair the leak (usually an oil seal) and check the oil level When adding oil use only synthetic gear lube in the reducer
NOTE This is a special oil and will not mix with a petroleum base oil Contact your distributor when this oil is needed This oil should be changed at least once a year
OIL LEVEL PLUG
PROPER OIL LEVEL
OIL DRAIN USE SPECIAl PLUG OIL ONLY
USE SPECIAL LOILON=LY-- I
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH ~1U8A
MAINTENANCE AND ADJUSTMENT ONLY TO BE PERFORMED BY A QUALIFIED SERVICE TECHNICIAN
WARNING
MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFFA POSITION AND THAT THE MAIN POWER SUPPLY IS DISCONNECTED BEFORE REMOVING PANELS shy
BEATER MOTOR Beater motors are either single or three phase Capacitor starting is used on the single phase units The beater motor should be inspected and cleaned
WATER COOLED CONDENSER Depending on the condition of your water the condenser on your CAB machine may require cleaning from time to time Usually a restricted flow of water resulting in a high head pressure indicates a dirty condenser The condenser should be flushed out with an acid solution by a qualified service technician
AIR COOLED CONDENSERS At least once a month the face area of the condenser should be inspected for accumulation of dirt and dust Surface dust and dirt can usually be removed with a stiff brush andor vacuum cleaner After brushing hold a light between the fan blades and look through the condenser from the opposite side This procedure will locate those areas where accumulated dirt has lodged between the condenser fins To clean these areas obtain a small tank of nitrogen or C02 with a needle control valve or pressure regulator with a small hose attached and proceed as follows
(1) Place a damp towel or cloth over the face area of the condenser
(2) Open the control valve or regulator on the tank releasing pressure to the coil from the back side cleaning the condenser
(3) Check the condenser periodically with the light and continue the treatment until the fins are clean
For maximum performance replace all worn O-Rings Seals Blades etc
CAUTION USE ORIGINAL OR AUTHORIZED REPLACEMENT PARTS ONLY WITH THIS FREEZER
Mig by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline illinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
19
20
PULLEY ALIGNMENT AND BELT TENSION ONLY TO BE PERFORMED BY A QUALIFIED SERVICE TECHNICIAN
WARNING
A MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFF POSITION AND THAT THE MAIN POWER SUPPLY IS DISCONNECTED
Remove the side panels to expose the pulleys and belts
Check the alignment of the beater motor pulley and gear reducer pulley by placing a straight edge across the faces of the two pulleys If the pulleys are not aligned adjust as necessary until proper alignment is obtained
Depress the belts with a finger at a point midway between the two pulleys When properly adjusted the belts should depress 12 from its normal position with approximately 5 pounds of pressure If the belts are too tight or too loose adjust as necessary until proper belt deflection is obtained Loosen four (4) bolts which hold the motor mounting plate to the frame With these loose adjust tension bolt in or out as required to obtain proper belt tension Retighten bolts
BELTS
Periodically inspect the belts If they are worn excessively replace both belts For best results it is advisable to replace both belts as they are manufactured in matched sets
SCRAPER BLADES
NOTE Be sure to purge all of the sanitizer from the mix system before operating the freezer (see page 12) Failure to completely remove sanitizer or water trom the freezing cylinder before placing the machine in the Automatic position may cause blade breakage and damage the freezer
o o
NEW BlADE WORN BLADE
Replace blades if worn 316 or more
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
END PLAY FOR BEATER DRIVE COUPLING
It is very important that the drive coupling located on the gear reducer be set properly Referring to the Drive Coupling Illustration the following procedure should be followed in setting the end play
WARNING
MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFF POSITION AND THAT THE ELECTRICAL POWER TO THE MACHINE IS DISCONNECTED SO THAT THE UNIT WILL NOT OPERATE
------
DRIVE COUPLING ILLUSTRATION
REF DESCRIPTION REF DESCRIPTION 1 Gear Reducer 6 Reducer Mounting Plate 2 Beater Shaft 7 Set Screws 3 Shaft Seal 8 Bolt Gear Reducer 4 Drive Coupling 9 Bolt Reducer Mounting Plate 5 Spacer 10 Key
11 Output Shaft
Improper drive coupling spacing will damage the beater shaft dispensing head and drive coupling When checking end play settings or replacing a coupling proceed as follows
REMOVING COUPLING
WARNING
DISCONNECT MAIN POWER SUPPLY
Mig by H C DUKE amp SON INC bull 2116 Eighth Allenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SO SERVE bull SHAKE bull SLUSH
21
22
(1) Remove Beater Shaft (Ref 2)
(2) Remove both drive belts (not shown)
(3) Remove gear reducer bolts (Ref 8) Six (6) bolts are located around the face of the reducer
NOTE Remove the top bolt last holding the bottom of the reducer as you do so
(4) Remove the gear reducer (Ref 1) and place-on table or bench
(5) Replace two (2) bolts (Ref 8) one (1) at the top and one (1) at the bottom so that the reducer cover will not come off while the coupling is changed
(6) Loosen the four (4) set screws (Ref 7) and remove the drive coupling (Ref 4) Should the coupling be stuck tight to the ouput shaft lightly tap the coupling from the back with a hammer and bar Sometimes due to age this coupling will stick so tight it will have to be removed with a pulley removing tool or a wheel puller
(7) Remove the key (Ref 10)
INSTALLING THE NEW COUPLING
(1) Clean gear reducer output shaft (Ref 11) with fine emery cloth and slide the new drive coupling on the reducer shaft The coupling should slide on the shaft all the way without the key If the coupling doesnt slide completely on check both coupling and reducer shaft for burrs When a smooth sliding fit is achieved remove coupling and proceed with final assembly
(2) Place key (Ref 10) in keyway slot on the reducer output shaft Keep the key flush with the front end of the output shaft (Ref 11)
(3) Slide the coupling (Ref 4) on the output shaft until it bottoms out on the shaft Leave the four (4) set screws loose as the coupling will have to be adjusted
(4) Remove the two (2) bolts added in preceding Step 5
(5) Place one (1) gear reducer bolt (Ref 8) in the top hole of the cylinder mounting plate
(6) Insert gear reducer into cylinder mounting plate and start top bolt (Ref 8) Do nol tighten completely Now insert the other bolts one at a time When all bolts are in tighten each boll
NOTE Due to very close tolerance between the gear reducer and cylinder mounting plate no alignment is required when Installing the reducer When the reducer bolts are tightened the reducer will seH-align with the cylinder
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
(7) Insert the beater shaft (Ref 2) with the shaft seal and blades into the cylinder and engage beater shaft in the drive coupling Place bushing on front of beater shaft
(8) Tape a dime (10 cents) to the back of the dispensing head in the very center at the point where the beater shaft touches the dispensing head The dime is used to acquire the proper end play setting on the drive coupling which is approximately 332
(9) Place the dispensing head into the cylinder and tighten with the hand knobs Important make sure hand knobs are tight and head is against the end of the cylinder tube
(10) Slide the drive coupling (Ref 4) forward until it is tight against the beater shaft and lock into place the four (4) set screws (Ref n
(11) Remove the dime from the back of the dispensing head
(12) Replace the drive belts
(13) Turn on electrical power
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
23
PANEL BREAKDOWN - 917CAB
~--~
3
REF PART No 1A 114544 1B 112991 2A 136075 2B 136102
3A 137027 3A 137028
3A 136105 3B 136103
3B 134817 4 134818
4 136101 5A 114780
5A 113570 5B 112967
6 112960 7 133291
24 A 917CAB only
I
dJ
DESCRIPTION Frame ssmiddoty Frame ASsmiddoty Lower Side Panel Lower Side Panel LH Side Panel RH Side Panel Upper Side Panel Upper Side Panel Upper Side Panel Rear Panel Rear Panel Top Cover ASsmiddoty Top Cover ASsmiddoty Top Cover ASsmiddoty Filler Panel ASsmiddoty Top Filler Strip
B bull 44 CAB only
~
[At 16 lt0
REF 8
9 10 11 12 12A 13
14 15 16 16A
Air Cooled only
PART No DESCRIPTION 132687 Dispense Panel 134247-01 Dispense Panel Cab-W
Drip Tray (See Pg 35) 114260-01 Door Assmiddoty wIHinges 132444-01 Left Hand Filler Strip 162045 Upper Hinge 162052 Spring LH 162046 Lower Hinge 160026 Screw 160020 Bolt 160139 Washer 110205 Syrup Jar Enclosure 160563-01 Door Gasket 01-Groove) 159174 Drip Tray Button 160293 Clip for Button
Water Cooled only
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
~~
1 ~~o ~o
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cp I
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REF PART No DESCRIPTION REF PART No DESCRIPTION 1 114538 Frame Assy 10 162045 bull Upper Hinge 2 136289 Side Panel LH lOA 162052 Spring LH 3 136313 Rear Panel 11 162046 Lower Hinge 4 114006 Top Panel AC llA 160026 Screw 4A 114428 Top Panel WC l1B 160020 Bolt 4B 114157 Top Panel AC Remote l1C 160139 Washer 5 113983 Front Panel Assy 927CAB 12 136216 Side Panel RH 5A 113985 Front Panel Assy 957cAB 13 160563 Door Gasket (V-Groove) 6 130021 Rear Corner Channel RH 14 159174 Drip Tray Button 6A 135254 Rear Corner Channel LH 14A 160293 Clip for Button 7 137228 Dispensing Panel 162108 Stop Pin (Screw In) 8 Drip Tray (See Pg 35) 136199 Door Pull 9 114260 Door Assy wHinges
25
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
SOFT SERVE CAB ELECTRICAL BOX
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 Contactor (Order By Freezer 5 150463 Selector Switch
Serial Number) 6 159235 Toggle Switch (Pump) 2 Overload (Order By Freezer 7 150456 Spigot Switch
Serial Number) 7A 136124 Button - Spigot Switch 2A Heater Coil (Order By Freezer 7B 162302 Spring - Spigot Switch
Serial Number) 8 150553 Pilot Light - Amber 3 Starter (Order By Freezer 9 150552 Pilot Light - Red
Serial Number) 10 161026 Thermometer (Not Shown) 4 150208 Timer
26
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Pointed u
- - --- -
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prifllcl If USA
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SOFT-SERVE - SINGLE HEAD CAB
REF PART No 1 151351
2 3 4 5 6 151044
151052 7
8 155039 9 155400 10 155117
11 151084
12A 159021 13 155401 13A 155423 14 155403 15 155422
16 154976 16 154975 17 159203 18 155051 19 112901
155410 20 155044
151348
DESCRIPTION Capacitor Relay Assembly (single phase)
150247 Start Capacitor
150249 Run Capacitor 150245 Relay Motor Capacitors (order by freezer serial no) Gear Reducer (see gear reducer breakdown page 36) Driven Pulley (order by freezer serial no) Belt (order by freezer serial no) Motor 1-phase 230 volt Motor 3-phase 208230 volt Driver Pulley (order by freezer serial no)
Water Condenser Automatic Expansion Valve (Cylinder) Air Condenser
Condenser Fan Motor
Condenser Fan Blade High Pressure Cut-Out shyHigh Pressure Cut-Out shyLow Pressure Cut-Out Solenoid Valve
Compressor 230160
AC WC
Compressor 208-230360 Sight Glass Drier (38) Receiver Tank Assembly Water Valve (not shown) Service Valve Compressor Mounting Kit
Note I) lt0 For All 50-Cycle Freezers Order By Freezer Serial Number
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Printad I usA
30
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SOFT-SERVE - DOUBLE CAB - WATER COOLED REF PART No DESCRIPTION 1 155026 Water Condenser (B-side) 1 A 155039 Water Condenser (A-side) 2 159203 Sight Glass 3 155051 Drier (38) 4 155400 Automatic Expansion Valve (Cylinder) 5 Gear Reducer (see gear reducer breakdown page 36) 6 155410 Water Valve 7 155423 High Pressure Cut-Out 8 155403 Low Pressure Cut-Out 9 154976 Compressor 230160
151351 Capacitor Relay Assembly (Single Phase) 150247 Start Capacitor 150249 Run Capacitor 150245 Relay
9A 154975 Compressor 208-230360~-11 NOT USED ON THIS MODEL 12 155442 Low Temp Control 13 Driven Pulley (order by freezer serial no) 14 Belt (order by freezer serial no) 15 Driver Pulley (order by freezer serial no) 16 155422 Solenoid Valve 17 151044 Motor 1 phase 230 volt 17A 151052 Motor 3 phase 208230 volt 18 Motor Capacitors single phase only (order by freezer serial no)
Note For All 50-Cycle Freezers Order By Freezer Serial Number
cgt
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH _InU5A
32
c W J o o o -a oCt
aI oCt o W I m ) o c w gta w Ch t--LL o Ch
SOFTmiddotSERVE bull DOUBLE CAB - AIR COOLED REF PART No 1 155120 2 159020 3 151080 4 155400 5 6 159203 7 155051 8 112901 9 151044 9A 151052 10 11 12 14 154976
14A 154975 15 155401 16 155403 17 155443 18 155442 19
21 155422
DESCRIPTION Condenser Fan Blade Fan Motor Automatic Expansion Valve (Cylinder) Reducer (see gear reducer breakdown page 36) Sight Glass Drier Receiver Assembly Motor 1-Phase 230 Volt Motor 3-Phase 208230 Volt Driven Pulley (order by freezer serial no) Belt (ordr by freezer serial no) Driver Pulley (order by freezer serial no) Compressor 230160 151351 Capacitor Relay Assembly (Single Phase)
150247 Start Capacitor 150249 Run Capacitor 150245 Relay
Compressor 208-230360 High Pressure Cut-Out Low Pressure Cut-Out Cabinet Thermostat Low Temp Thermostat NOT USED ON THIS MODEL Motor Capacitors single phase only (order by freezer serial no) Solenoid Valve
Note For All 50-Cycle Freezers Order By Freezer Serial Number
Vl Vl
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prinled In USA
CAB PARTS BREAKDOWN
REF PART No DESCRIPTION PART No DESCRIPTION 1 155109 Cabinet Coil 136297 Condensate Pan (Not Shown) 1A 155113 Motor Cabinet Fan 196092 Mix Tank 7-12 Gal 1B 155099 Fan Blade Cabinet Coil 113997 Front Lid Mix Container
7-12 Gal 136248-01 Rear Lid Mix Cont 7-12 Gal
10 155416 CAB Automatic Expansion 130092 Mix Tube Valve 196028 Mix Tank 10 Gal
137119 Probe 11 -1 4 shy1E 155114 Fan Grill amp Bracket 7-12 Gal Container 1F 155116 Knob 137119-01 Probe 10-34 shy2 113898 DPR Pump Less Motor 7-12 amp 10
(see pump breakdown Gal Container pg 38) 137119-02 Probe 10-14 shy
3 196061 Mix Hose (sold by the foot) 10 Gal Container 4 150416 Door Switch 137120 Base Probe Mtg 4A 114630 Actuator Door Switch 160500 O-Ring
(Not Shown) 114572 Hose Clamp (Not Shown) 5 150527 Retractable Cordset 34
MIg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prlmd UsA
MERCHANDISING ASSY
PART No 115108 115107
PART No
196107-01 196108-01 114610 114608 115132 199030
PART No 162105 162106 112978 158004 158021 158022 158078 158000 158056 158000A 158014 158014A 161000 158049
DESCRIPTION 2S Merchandiser-927-957-978CAB 24 Merchandiser-917CAB
DRIP TRAY
DESCRIPTION
24 Drip Tray-917CAB 26- Drip Tray-927-957-978CAB 24 Tray Insert-917CAD 26 Tray Insert-978CAB-927CAB 26 Tray Insert-957CAB Rubber Bumper (only)
DESCRIPTION Caster With Brake Caster Without Brake Leg-6 4 Cylinder Brush Mix Hose Brush 58 Dia w6 Ft Handle 14 Pump Brush Drain Tube Brush Petrol Gel (12 tube carton) Petrol Gel (6 tube carton) Pe1rol Gel (per tube) Stera Sheen (per case) Stera Sheen (per jar) Pocket Thermometer 1 Dial Z32 Overrun Scale
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SNAKE bull SLUSH
35
36
GEAR REDUCERS Order By Freezer Serial Number
Model 3 CB
153345 5-1 Ratio B side 153004 High Speed Cup ~ (2 ea required) 153005 High Speed Bearing (2 ea required) 153008 Slow Speed Cup (2 ea required) 153009 Slow Speed Bearing (2 ea required) 153052 Slow Speed Seal (2 ea required) 153054 High Speed Seal (2 ea required) 153313 Brass Gear 5-1 Ratio 153336 Slow Speed Shaft Only 5-1 Ratio 153316 Worm Gear On Shaft 5-1 Ratio 114873 Gasket Set
Model 4 CB
153342 10-1 Ratio A side 153343 10-1 Ratio B side
153014 High Speed Cup (2 ea required) 153015 High Speed Bearing (2 ea required) 153011 Slow Speed Cup (2 ea required) 153012 Slow Speed Bearing (2 ea required) 153051 Slow Speed Seal (2 ea required) 153053 High Speed Seal (2 ea required) 153349 Brass Gear 10-1 Ratio 153339 Slow Speed Shaft OnIy 10-1 Ratio 153347 Worm Gear on Shaft 10-1 Ratio 114874 Gasket Set
Winlwin Model
153341 Wintwin 10-1 Ratio A and B Side
153014 High Speed Cup (2 ea required) 153015 High Speed Bearing (2 ea required) 153011 Slow Speed Cup (2 ea required) 153012 Slow Speed Bearing (2 ea required) 153051 Slow Speed Seal (2 ea required) 153053 High Speed Seal (2 ea required) 153349 Brass Gear 153350 Slow Speed Shaft Only 153348 Worm Gear on Shaft 11 4874 Gasket Set
158055 Gear Reducer OU 51001
Drive Coupling (Order By Machine Serial Number)
Mfg by H C DUKE amp SON INC bull 2115 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
917 amp 927 Beater Shaft Assembly
957 Beater Shaft
Item Part No Description
1 196079 Bushing-Cylinder 2 114752 Beater-Assy Long (Shaft) 3 137334 Blade-Scraper Soft Serve 4- 160500 O-Ring (Shaft Seal) 5- 133098 Bushing (Washer-Shaft Seal) 6 160557 Seal-Beater Shaft
-Items 4-6 111875 Seal-Assy Shaft (Complete)
31
1 113438 2 196079 3 137334 4- 160500 5- 133098 6 160557
-Items 4-6 111875
Shaft-Assy Beater Bushing-Cylinder Blade-Scraper O-ring (Shaft Seal) Washer-Shaft Seal (Bushing) Seal-Beater Shaft (Cup)
Seal-Assy Shaft (Complete)
ao
DISPENSING HEAD
16
r
Q
--~
-----_
REF PART No DESCRIPTION Tl3o 6 119928- Door Assembly shy Complete (Items 7-14) 11637- 7 196688 Door shy Less Parts
a 134921 Spigot shy Less Extension 9 134922 Handle Extension shy Spigot
10 162624 Handle 11 159295 OmiddotRings shy Spigot (Lots of 5)12 159309 O-ring shy 4 - Door 13 196066 Air Relief Screw 14 160621 a-Ring shy Air Relief Screw (Lots of 5)15 136126 Rod - Spigot Switch shy 917 8 927 16 136798 HMdKnob
38
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illmols 61244
SUPERIOR QUAUlY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
Duke Soft Serve Freezer Models 917R and 927RN
5 -______
7
6
UPDATEDDispense Head Assembly
Item Part No
115130 1 116321 2 160583 3 115129 4 160562 5 136126 6 134921 SA 162624 68 134922 7 159295 8 160584 9 162625 9A 114341 10 196185 10A 137870 108 136713
116410
Includes items 1-4 6-8
Description
Head-Assy Dispense (Complete) Head-Assy wActualor O-ring (Head-4-inch) Bleeder-Assy (Air Relief Plug) O-ring (Bleeder-Assy) Rod-Spigot Switch Spigot-long Single Handle-Black Tapered Handle-Spigot (Stainless Steel) O-ring (Spigot) O-ring (Extension) Knob-Hand Stud-Assy Cylinder 1-15116 inch (not shown) Nouie-Slar Adapter (accessory) Adapter-Yogurt Nozzle (not shown) Extension-Spigot (accessory-cake not shown) Kit-Dispense Head Switch
( Use only original or authorized replacement parts with this freezer )
DISPENSING HEAD
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH uu
REF PART No 114765
1 196082 2 114313 3 137018 5 136618 6 162626 8 134499 9 162625
10 115129 11 136794 12 159309 13 159295 14 160562 15 136713 16 160584
DESCRIPTION Door Assy-Complete Door-Less Parts Spigot Assy-Side Spigot Only-Center Extension Only-Center Handle Stud-Handle Stop Hand Knob Air Re1ief-Assy Rod-Spigot Switch O-Ring-4-Door O-Ring-Spigot O-Ring-Air Relief Extension-Spigot a-Ring
39
40
PUMP MOTOR AND HOUSING ASSEMBLY SAFETY SWITCH ASSEMBLY
PRESSURE SWITCH ASSEMBLY ijreg~
I
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH IIIUaA
CAB DPR PUMP BREAKDOWN
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 196091 Pump Base 46 114009 Pump Cover 2 136088 Pump Support 47 113464 Base Bracket Assembly 3 150784 Strain Relief Bushing 48 135725 Stud 1-78 4 Power Cord 49 160131 516 Flatwasher 5 160075 10-24 x 38 Screw 50 160293 Speed Clip 6 135416 Cover Electric Box 51 135724 Button 7 160141 14 Lockwasher 52 160140 10 Lockwasher 8 160491 14-20 x 34 Socket Screw 53 135726 Stud 3 9 113497 Motor Cord 18-3 SJT 54 160109 10-24 Hex Nut 10 151127 Motor 40 RPM Soft Serve 55 135729 Switch Actuator 11 160023 14-20 x 1 Screw 56 135731 Stop - Max Pressure 12 153317 Half Moon Key 57 162315 Spring - Soft Serve 13 112925 Cam Drive Plate Assembly 58 160138 10 Flat Washer 14 160495 14-20 x 14 Set Screw 59 160304 10-24 Stop Nut 15 160369 Pin 60 150456 Pressure Switch 16 134614 Swing Clamp 61 135744 Insulator - Fiber 17 134521 Adjusting Clamp 62 160381 6-32 x 1 Socket Screw 18 160488 Thumb Screw 63 160393 6 Flatwasher 19 134604 Bearing Bushing 64 160146 6 Lockwasher 20 134602 Connecting Rod 65 160309 6-32 Hex Nut 21 134601 Piston 66 160006 6-32 x 14 Screw 22 159295 O-Ring 67 160001 8-32 x 38 Screw 23 134603 Wrist Pin 68 160470 8 Lockwasher 24 136089 Cylinder 69 150481 Circuit Breaker 25 199011 Washer Valve 70 135727 Switch Bracket 26 159282 O-Ring 71 136311 Spacer - Cover Switch 27 113839 Pump Valve Housing 72 160028 Truss Head Screw
Assembly (Metal) 14-20 x 34 SST 28 160582 O-Ring 73 160141 Lockwasher 14 29 199020 Sleeve Rubber 74 160104 Hex Nut 14-20 30 135793 Retainer Clip 75 136312 Button Guard 31 135791 Adapter Hose Outlet 76 160020 Hex Hd Cap Screw 32 160581 O-Ring 14-20 x 1 SST 33 135790 Piston 77 113869 Switch Bracket 34 162308 Spring Soft Serve 78 136110 Button Cover Switch 35 135792 Drain Port 79 162314 Spring 36 160611 O-Ring 80 150456 Switch Pump Safety 37 135896 Hose 24 81 135004 Switch Cover 38 160738 Hose Clamp 82 160296 Screw RH 39 136288 Keeper 6-32 x 1-14 40 160554 O-Ring 83 160146 Lockwasher 6 41 160368 Wing Nut Int Tooth 42 130054 Diaphragm Housing 84 160393 Flatwasher 6 43 199019 Diaphragm 85 160309 Hex Nut 6-32 44 196074 Air Tube-Curved 86 114572 Hose Clamp 45 163433 Air Meter - 20 87 160048 14-20 x 12 TRHM
(other sizes available) 88 160308 6-32 x 516 RDHM 89 114581 Circuit Breaker Bracket
Not Shown 90 163109 Stop Pivot 112791 DPR Pressure Gauge
41
Mfg by H C DUKE amp SON INC 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
42
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Unit does not operate 1 Fuse blown at main disconshy 1 Check fuse size check for low nect voltage if not within 10 of
nameplate rating install transformer or call power company
2 Beater motor out on overload 2 Press starter reset button and check for low voltage Check producllemperalure and overrun
3 Disconnected or broken wife 3 Check wiring and wire connecshyin electrical circuit lions repair or replace lead
wires as necessary
4 Faulty selector switch 4 Replace selector switch
5 Out on high pressure 5 Check for low waler supply or dirty air conden ser
6 Out on low pressure 6 Check limit control and freon charge
Compressor does not operate f Troubte in compressor con- I Refer to Trouble-Shootingshyor operates improperly densing circuit Compressor I Condensing
Circuit
2 Faulty capacitor assembly 2 Replace capaCitor assembly (Single phase only)
3 Faulty contactor 3 Replace contaclOr or pOints
Compressor operates but 1 Loose con neclion at motor 1 Tighten connection beater motor does not starter coil (electrical box)
2 Open starter coil 2 Replace coil
3 Faulty capacitor assembly 3 Replace capaCitor assembly (Single phase only)
Dispensed product too hard 1 Cylinder themostat erratic 1 Adjust thermo slat or replace or set too low
2 Faulty time delay relay 2 Replace time delay relay
3 Solenoid valve leaking 3 Replace solenoid valve
4 Low suction pressure 4 See chart on page 15 for adshyjustments
Leaking of mix from rear housshy 1 Damaged bealer shalt seal 1 Replace shaft seal or O-ring ing discharge tube to drip tray inside seal assy
Mig by H C DUKE amp SON INC bull 2116 Eighlh Avenue Easl Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Mix leaking at dispensing head 1 Faulty 4 O-Ring
2 Head not properly installed
1 Replace 4 O-Ring
2 Install head properly
Mix sours in cabinet 1 Cabinet thermostat setting too high
2 Cabinet thermostat detective
3 Cabinet solenoid valve deshyfective
4 Cabinet switch defective
5 Beater motor out on overshyload (cab side)
1 Adjust thermostat
2 Replace thermostat
3 Replace coil or solenoid
4 Replace cabinet switch
S Reset overload for beater motor See pg 42 unit does not operate
Cabinet too COld
Machine runs continually and Product continues to get colder
Compressor operates only when dispensing
Unit runs conMuously Product does nol reach 180 F temperature
6 Door sWitch defectIVe
1 Cabinet thermostat setting too low
2 Defective thermostat
3 Cabinet solenoid stuck open
4 Cabinet expansion valve set too low
1 Plunger switch out of adjustshyment
2 Su ction pressure too low
3 Defective plunger switch
4 Plunger switch rod engaged
5 Faulty time delay relay
6 Starter or relay contacts stuck
7 Faulty thermostat or bulb not deep enough in well
6 Replace door SWitch
1 Adjust thermostat
2 Replace thermostat
3 Replace solenoid
4 Adjust cabinet expansion valve (See pg 15)
1 Adjust plunger switch
2 Adjust expansion valve and check freon charge
3 Replace plunger switch
4 Close plunger completely
5 Replace time delay relay
I 6 Check contacts i
7 Check bulb location or replace thermostat
1 Cylinder themostat setting 1 Adjust thermostat or replace too high or thermostat deshyfective
1 Trouble in compressor I condensing system
2 ExpanSion valve setiing is too high
3 Low on refrigeranl
1 See Trouble-Shooling-CompressorI Condensing circuit
2 Adjust expansion valve
3 Check and repair leak and recharge
1
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE SLUSHbull
43
44
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Dispensed product too soft (Product temperature above 21 0 F)
1 Automatic expansion yalve incorrectly set or erratic in operation
-2 Leak in refrigeration system
resulting in little or no refrigeration
1 Adjust or replace expanSion valve
2 Pump down system or remove refrigerant charge repair leak evacuate and recharge
3 Excessive oil in system 3 Drain compressor to proper oil leyel pump down and flush system
4 Thermostat set too high taulty
or 4 Adiust thermostat or replace
Product dispenses slOWly out dispensing head
1 Reverse rotation 1 Change rotation to clockshywise from front of freezer
2 Dispensing speed adjustshyment boll too far down
2 Adjust bolt upward
3 Pum p problem 3 See pump Trouble-Shooting chart
4 Product too cold 4 See dispensed product too hard pg42
TROUBLE-SHOOTING CHART COMPRESSORICONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor will not start -hums intermittently (cycling on oyerload)
1 Improperly wired
2 Low line Yoltage
3 Open starting capacitor (single phase only)
4 High discharge pressure
1 Check wiring against diagram
2 Ask power company to increase YOltage to not less than 10 below nameplate rating or install transformer Check for inadequate wire size
3 Replace starting capacitor
4 CheCK water regulating valve setting Check water or air condenser and clean if necessary Make sure disshycharge shut-oft valve is open
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor starts but remains 1 Low line voltage 1 Ask power company to in start windings increase voltage to not less (Single phase only) than 10 below nameplate
rating or install transrormer
2 Improperly wired 2 Check wiring against drawing Check wire size
3 Running capacitor shorted 3 Check by disconnecting running capacitor
4 Starting capacitor weak 4 Check capacitor replace
5 High disCharge pressure 5 Check water regulating valve check water or air condenser and clean il necessary Check discharge shut-off valve
Starter burned out 1 Low line voltage 1 Ask power company to inshycrease voltage to not less than 10 below nameplate rating or install transformer
2 Excessive line voltage 2 Ask power company to reduce voltage to maximum of 10 over nameplate rating
Starting capacitors burn out 1 Voltage 100 low 1 Ask power company to (Single phase only) increase voltage to not less
than 10 below nameplate rating or install translonmer
2 Improper capacitor 2 Replace capacitor with properly rated capacitor as listed in manual
Running capacitors burn out 1 Excessive line voltage 1 Ask power company to reshy(Single phase only) duce line voltage to not more
than 10 above rating 01 motor
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
45
46
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Unit operates long or continuously
1 Shortage of gas
2 Dirty condenser
3 Moisture in system
4 Compressor failing
1 Repair leak and recharge
2 Clean condenser
3 Evacuate and recharge system
4 Check compressor lor proper pressures If inadequate replace compressor
Head pressure too high 1 Refrigerant overcharge
2 Air in system
3 Dirty condenser (air cooled)
4 Unit location too warm (air cooled)
5 Restricted water cooled condenser
6 Water turned off or defective
1 Purge system
2 Purge system evacuate and recharge
3 Clean condenser
4 Relocate unIt away from restriction Place nothing against back or on top of unit
5 Clean or replace condenser
6 Turn on water Or replace water regulating valve regulating valve
Head pressure too low 1 Shortage 01 refrigerant 1 Repair leak and recharge
2 Water regulating valve open 2 Adjust regulating valve too wide
Water 1I0wing through water 1 Water regulating valve 1 Replace water regulating valve waste line when unit is not in operation
defective
Noisy compressor 1 Tubing raUle 1 Bend tubes away from contact
NOTE Refer to warranty card prior to compressor replacement
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING DPR PUMP
TROUBLE PROBABLE CAUSE REMEDY
Pump will not run 1 Pump cover removed 1 Install pump cover
2 Pressure switch actuating 2 Free bulton-check spring and
bulton stuck open (in) pressure switch alignment
3 Pressure switch burned out 3 Replace pressure switch
4 Starting switch in motor bad 4 Install new starting switch
5 Motor burned out 5 Replace motor
6 Circuit breaker kicked out 6 Allow to re- set Replace it or faulty circuit breaker will not
automatically re-set
Motor runs-cam drive plate 1 Loose cam drive plate 1 Tighten set screw in cam will not turn drive plate Check woodruff key
2 Gear stripped 2 Replace gear
Pump will not shut off Mix 1 Pressure swilch actuating 1 Free button-check pressure shoots out pressure relief bulton stuck closed (out) switch alignment
2 Pressure switch stuck in 2 Replace pressure switch closed position
3 Pressure switch assy out 3 Using pressure gauge adjust of adjustment pressure
4 Dirty or plugged diaphragm 4 Disassemble and clean housing (Ref 42) housing
5 Defective O-Ring on 5 Replace O-Ring pressure relief piston
Pump will not prime 1 Insufficient supply of mix 1 Replenish mix supply
2 Piston O-ring defective-no 2 Replace piston O-Ring and suction lubricate
3 Washer valve not sealing 3 Replace washer valve DO NOT LUBRICATE
Pump primes No pressure in 1 Sleeve (Rei 29) not sealing 1 Replace sleeve DO NOT cylinder properly LUBRICATE
2 Loose hose connection on 2 Install or tighten hose clamp pump valve housing (Ref 27)
Mix shoots out Of air intake line 1 Washer valve (Ref 25) 1 Replace washer valve-DO not sealing properly NOT LUBRICATE
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOfT SERVE bull SHAKE bull SLUSH
47
48
TROUBLE-SHOOTING DPR PUMP
Too much air overrun too high-popping problems
Product dispenses slowly out of disPenSing head
1 Air meter too large (Ref 45)
2 Air leak befween mix conshytainer and mix inlet
3 Air line hose crackedshysucking air (Ref 44)
4 Pump pressure too lowshycylinder not full
1 Pump pressure too low
2 PrOduct too cold
3 Low overrun
Diaphragm housing leaking mix 1 Diaphragm housing loose
2 Diaphragm defective
Piston drive assy noisy 1 Bushing bearing worn
2 Defective gear in gear motor
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SIfAKE bull SLUSH
REMEDY
1 Replace washer valve-DO NOT LUBRICATE
2 Install clamp on hose
1 Replace O-Ring and LUBRIshyCATE
1 Clean or replace air meter
2 Replace tube
1 Install smaller air meier
2 Repair as needed
3 Replace air line hose
4 Using pressure gauge adjust pressure switch
1 Using pressure gauge adjust pump pressure
2 Check product temperatureshyshould be about 18 F
3 Check meter-if plugged-clean
1 Tighten wing nuls (Ref 41)
2 Replace diaphragm (Ref 43)
1 Replace bushing bearing (Ref 19)
2 Replace gear
TROUBLE
Mix inlet hose loses prime
Mix on top of piston
PROBABLE CAUSE
1 Washer valve (Ref 25) not sealing properly
2 Mix inlet hose loose
1 Piston O-Ring leaking (Ref 22)
No Air (Overrun) 11 Ai r meter plugged (Ref I 45)
2 Curved air tube pinched
--
DPR PUMP aI
PART NO 199019(i) PART NO 199020 reg DIAPHRAGM RUBBER SLEEVE
PART NO159295 PART NO 159282reg O-RING O-RING0
PART NO 160581reg O-RING
o PART NO PART NO
PART NO199011() 160611(8) 160582 WASHER VALVE O-RING O-RING
PISTON
cJ
DIAPHRAGM HOUSING
CYLINDER
VALVE HOUSIN6 ASSEMBLY
PUUPOUTLET
DRAIN PORT
I PHNO309-755-4553 O-RING CHART HCDUKEampSONINC I
1 I84Z08 SOFT SERVE DISPENSING HEADS I
o PART NO 1605620
PAR~159--1b
PART NO PART NO 1605841 59295()
I PHNO 309-755-4553 O-R ING CHART HCDUKEampSONINC I
- Cover
- Table of Contents
- Safety
- Uncrating amp Inspection13
- Explanation of Electrical Controls
- Operation of Machine
- General Information
- Maintenance amp Adjustment
- Parts Breakdowns
- Trouble-Shooting Charts
- O-ring Charts
-
MAINTENANCE AND ADJUSTMENT ONLY TO BE PERFORMED BY A QUALIFIED SERVICE TECHNICIAN
WARNING
MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFFA POSITION AND THAT THE MAIN POWER SUPPLY IS DISCONNECTED BEFORE REMOVING PANELS shy
BEATER MOTOR Beater motors are either single or three phase Capacitor starting is used on the single phase units The beater motor should be inspected and cleaned
WATER COOLED CONDENSER Depending on the condition of your water the condenser on your CAB machine may require cleaning from time to time Usually a restricted flow of water resulting in a high head pressure indicates a dirty condenser The condenser should be flushed out with an acid solution by a qualified service technician
AIR COOLED CONDENSERS At least once a month the face area of the condenser should be inspected for accumulation of dirt and dust Surface dust and dirt can usually be removed with a stiff brush andor vacuum cleaner After brushing hold a light between the fan blades and look through the condenser from the opposite side This procedure will locate those areas where accumulated dirt has lodged between the condenser fins To clean these areas obtain a small tank of nitrogen or C02 with a needle control valve or pressure regulator with a small hose attached and proceed as follows
(1) Place a damp towel or cloth over the face area of the condenser
(2) Open the control valve or regulator on the tank releasing pressure to the coil from the back side cleaning the condenser
(3) Check the condenser periodically with the light and continue the treatment until the fins are clean
For maximum performance replace all worn O-Rings Seals Blades etc
CAUTION USE ORIGINAL OR AUTHORIZED REPLACEMENT PARTS ONLY WITH THIS FREEZER
Mig by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline illinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
19
20
PULLEY ALIGNMENT AND BELT TENSION ONLY TO BE PERFORMED BY A QUALIFIED SERVICE TECHNICIAN
WARNING
A MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFF POSITION AND THAT THE MAIN POWER SUPPLY IS DISCONNECTED
Remove the side panels to expose the pulleys and belts
Check the alignment of the beater motor pulley and gear reducer pulley by placing a straight edge across the faces of the two pulleys If the pulleys are not aligned adjust as necessary until proper alignment is obtained
Depress the belts with a finger at a point midway between the two pulleys When properly adjusted the belts should depress 12 from its normal position with approximately 5 pounds of pressure If the belts are too tight or too loose adjust as necessary until proper belt deflection is obtained Loosen four (4) bolts which hold the motor mounting plate to the frame With these loose adjust tension bolt in or out as required to obtain proper belt tension Retighten bolts
BELTS
Periodically inspect the belts If they are worn excessively replace both belts For best results it is advisable to replace both belts as they are manufactured in matched sets
SCRAPER BLADES
NOTE Be sure to purge all of the sanitizer from the mix system before operating the freezer (see page 12) Failure to completely remove sanitizer or water trom the freezing cylinder before placing the machine in the Automatic position may cause blade breakage and damage the freezer
o o
NEW BlADE WORN BLADE
Replace blades if worn 316 or more
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
END PLAY FOR BEATER DRIVE COUPLING
It is very important that the drive coupling located on the gear reducer be set properly Referring to the Drive Coupling Illustration the following procedure should be followed in setting the end play
WARNING
MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFF POSITION AND THAT THE ELECTRICAL POWER TO THE MACHINE IS DISCONNECTED SO THAT THE UNIT WILL NOT OPERATE
------
DRIVE COUPLING ILLUSTRATION
REF DESCRIPTION REF DESCRIPTION 1 Gear Reducer 6 Reducer Mounting Plate 2 Beater Shaft 7 Set Screws 3 Shaft Seal 8 Bolt Gear Reducer 4 Drive Coupling 9 Bolt Reducer Mounting Plate 5 Spacer 10 Key
11 Output Shaft
Improper drive coupling spacing will damage the beater shaft dispensing head and drive coupling When checking end play settings or replacing a coupling proceed as follows
REMOVING COUPLING
WARNING
DISCONNECT MAIN POWER SUPPLY
Mig by H C DUKE amp SON INC bull 2116 Eighth Allenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SO SERVE bull SHAKE bull SLUSH
21
22
(1) Remove Beater Shaft (Ref 2)
(2) Remove both drive belts (not shown)
(3) Remove gear reducer bolts (Ref 8) Six (6) bolts are located around the face of the reducer
NOTE Remove the top bolt last holding the bottom of the reducer as you do so
(4) Remove the gear reducer (Ref 1) and place-on table or bench
(5) Replace two (2) bolts (Ref 8) one (1) at the top and one (1) at the bottom so that the reducer cover will not come off while the coupling is changed
(6) Loosen the four (4) set screws (Ref 7) and remove the drive coupling (Ref 4) Should the coupling be stuck tight to the ouput shaft lightly tap the coupling from the back with a hammer and bar Sometimes due to age this coupling will stick so tight it will have to be removed with a pulley removing tool or a wheel puller
(7) Remove the key (Ref 10)
INSTALLING THE NEW COUPLING
(1) Clean gear reducer output shaft (Ref 11) with fine emery cloth and slide the new drive coupling on the reducer shaft The coupling should slide on the shaft all the way without the key If the coupling doesnt slide completely on check both coupling and reducer shaft for burrs When a smooth sliding fit is achieved remove coupling and proceed with final assembly
(2) Place key (Ref 10) in keyway slot on the reducer output shaft Keep the key flush with the front end of the output shaft (Ref 11)
(3) Slide the coupling (Ref 4) on the output shaft until it bottoms out on the shaft Leave the four (4) set screws loose as the coupling will have to be adjusted
(4) Remove the two (2) bolts added in preceding Step 5
(5) Place one (1) gear reducer bolt (Ref 8) in the top hole of the cylinder mounting plate
(6) Insert gear reducer into cylinder mounting plate and start top bolt (Ref 8) Do nol tighten completely Now insert the other bolts one at a time When all bolts are in tighten each boll
NOTE Due to very close tolerance between the gear reducer and cylinder mounting plate no alignment is required when Installing the reducer When the reducer bolts are tightened the reducer will seH-align with the cylinder
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
(7) Insert the beater shaft (Ref 2) with the shaft seal and blades into the cylinder and engage beater shaft in the drive coupling Place bushing on front of beater shaft
(8) Tape a dime (10 cents) to the back of the dispensing head in the very center at the point where the beater shaft touches the dispensing head The dime is used to acquire the proper end play setting on the drive coupling which is approximately 332
(9) Place the dispensing head into the cylinder and tighten with the hand knobs Important make sure hand knobs are tight and head is against the end of the cylinder tube
(10) Slide the drive coupling (Ref 4) forward until it is tight against the beater shaft and lock into place the four (4) set screws (Ref n
(11) Remove the dime from the back of the dispensing head
(12) Replace the drive belts
(13) Turn on electrical power
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
23
PANEL BREAKDOWN - 917CAB
~--~
3
REF PART No 1A 114544 1B 112991 2A 136075 2B 136102
3A 137027 3A 137028
3A 136105 3B 136103
3B 134817 4 134818
4 136101 5A 114780
5A 113570 5B 112967
6 112960 7 133291
24 A 917CAB only
I
dJ
DESCRIPTION Frame ssmiddoty Frame ASsmiddoty Lower Side Panel Lower Side Panel LH Side Panel RH Side Panel Upper Side Panel Upper Side Panel Upper Side Panel Rear Panel Rear Panel Top Cover ASsmiddoty Top Cover ASsmiddoty Top Cover ASsmiddoty Filler Panel ASsmiddoty Top Filler Strip
B bull 44 CAB only
~
[At 16 lt0
REF 8
9 10 11 12 12A 13
14 15 16 16A
Air Cooled only
PART No DESCRIPTION 132687 Dispense Panel 134247-01 Dispense Panel Cab-W
Drip Tray (See Pg 35) 114260-01 Door Assmiddoty wIHinges 132444-01 Left Hand Filler Strip 162045 Upper Hinge 162052 Spring LH 162046 Lower Hinge 160026 Screw 160020 Bolt 160139 Washer 110205 Syrup Jar Enclosure 160563-01 Door Gasket 01-Groove) 159174 Drip Tray Button 160293 Clip for Button
Water Cooled only
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
~~
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REF PART No DESCRIPTION REF PART No DESCRIPTION 1 114538 Frame Assy 10 162045 bull Upper Hinge 2 136289 Side Panel LH lOA 162052 Spring LH 3 136313 Rear Panel 11 162046 Lower Hinge 4 114006 Top Panel AC llA 160026 Screw 4A 114428 Top Panel WC l1B 160020 Bolt 4B 114157 Top Panel AC Remote l1C 160139 Washer 5 113983 Front Panel Assy 927CAB 12 136216 Side Panel RH 5A 113985 Front Panel Assy 957cAB 13 160563 Door Gasket (V-Groove) 6 130021 Rear Corner Channel RH 14 159174 Drip Tray Button 6A 135254 Rear Corner Channel LH 14A 160293 Clip for Button 7 137228 Dispensing Panel 162108 Stop Pin (Screw In) 8 Drip Tray (See Pg 35) 136199 Door Pull 9 114260 Door Assy wHinges
25
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
SOFT SERVE CAB ELECTRICAL BOX
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 Contactor (Order By Freezer 5 150463 Selector Switch
Serial Number) 6 159235 Toggle Switch (Pump) 2 Overload (Order By Freezer 7 150456 Spigot Switch
Serial Number) 7A 136124 Button - Spigot Switch 2A Heater Coil (Order By Freezer 7B 162302 Spring - Spigot Switch
Serial Number) 8 150553 Pilot Light - Amber 3 Starter (Order By Freezer 9 150552 Pilot Light - Red
Serial Number) 10 161026 Thermometer (Not Shown) 4 150208 Timer
26
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Pointed u
- - --- -
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prifllcl If USA
In-
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SOFT-SERVE - SINGLE HEAD CAB
REF PART No 1 151351
2 3 4 5 6 151044
151052 7
8 155039 9 155400 10 155117
11 151084
12A 159021 13 155401 13A 155423 14 155403 15 155422
16 154976 16 154975 17 159203 18 155051 19 112901
155410 20 155044
151348
DESCRIPTION Capacitor Relay Assembly (single phase)
150247 Start Capacitor
150249 Run Capacitor 150245 Relay Motor Capacitors (order by freezer serial no) Gear Reducer (see gear reducer breakdown page 36) Driven Pulley (order by freezer serial no) Belt (order by freezer serial no) Motor 1-phase 230 volt Motor 3-phase 208230 volt Driver Pulley (order by freezer serial no)
Water Condenser Automatic Expansion Valve (Cylinder) Air Condenser
Condenser Fan Motor
Condenser Fan Blade High Pressure Cut-Out shyHigh Pressure Cut-Out shyLow Pressure Cut-Out Solenoid Valve
Compressor 230160
AC WC
Compressor 208-230360 Sight Glass Drier (38) Receiver Tank Assembly Water Valve (not shown) Service Valve Compressor Mounting Kit
Note I) lt0 For All 50-Cycle Freezers Order By Freezer Serial Number
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Printad I usA
30
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SOFT-SERVE - DOUBLE CAB - WATER COOLED REF PART No DESCRIPTION 1 155026 Water Condenser (B-side) 1 A 155039 Water Condenser (A-side) 2 159203 Sight Glass 3 155051 Drier (38) 4 155400 Automatic Expansion Valve (Cylinder) 5 Gear Reducer (see gear reducer breakdown page 36) 6 155410 Water Valve 7 155423 High Pressure Cut-Out 8 155403 Low Pressure Cut-Out 9 154976 Compressor 230160
151351 Capacitor Relay Assembly (Single Phase) 150247 Start Capacitor 150249 Run Capacitor 150245 Relay
9A 154975 Compressor 208-230360~-11 NOT USED ON THIS MODEL 12 155442 Low Temp Control 13 Driven Pulley (order by freezer serial no) 14 Belt (order by freezer serial no) 15 Driver Pulley (order by freezer serial no) 16 155422 Solenoid Valve 17 151044 Motor 1 phase 230 volt 17A 151052 Motor 3 phase 208230 volt 18 Motor Capacitors single phase only (order by freezer serial no)
Note For All 50-Cycle Freezers Order By Freezer Serial Number
cgt
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH _InU5A
32
c W J o o o -a oCt
aI oCt o W I m ) o c w gta w Ch t--LL o Ch
SOFTmiddotSERVE bull DOUBLE CAB - AIR COOLED REF PART No 1 155120 2 159020 3 151080 4 155400 5 6 159203 7 155051 8 112901 9 151044 9A 151052 10 11 12 14 154976
14A 154975 15 155401 16 155403 17 155443 18 155442 19
21 155422
DESCRIPTION Condenser Fan Blade Fan Motor Automatic Expansion Valve (Cylinder) Reducer (see gear reducer breakdown page 36) Sight Glass Drier Receiver Assembly Motor 1-Phase 230 Volt Motor 3-Phase 208230 Volt Driven Pulley (order by freezer serial no) Belt (ordr by freezer serial no) Driver Pulley (order by freezer serial no) Compressor 230160 151351 Capacitor Relay Assembly (Single Phase)
150247 Start Capacitor 150249 Run Capacitor 150245 Relay
Compressor 208-230360 High Pressure Cut-Out Low Pressure Cut-Out Cabinet Thermostat Low Temp Thermostat NOT USED ON THIS MODEL Motor Capacitors single phase only (order by freezer serial no) Solenoid Valve
Note For All 50-Cycle Freezers Order By Freezer Serial Number
Vl Vl
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prinled In USA
CAB PARTS BREAKDOWN
REF PART No DESCRIPTION PART No DESCRIPTION 1 155109 Cabinet Coil 136297 Condensate Pan (Not Shown) 1A 155113 Motor Cabinet Fan 196092 Mix Tank 7-12 Gal 1B 155099 Fan Blade Cabinet Coil 113997 Front Lid Mix Container
7-12 Gal 136248-01 Rear Lid Mix Cont 7-12 Gal
10 155416 CAB Automatic Expansion 130092 Mix Tube Valve 196028 Mix Tank 10 Gal
137119 Probe 11 -1 4 shy1E 155114 Fan Grill amp Bracket 7-12 Gal Container 1F 155116 Knob 137119-01 Probe 10-34 shy2 113898 DPR Pump Less Motor 7-12 amp 10
(see pump breakdown Gal Container pg 38) 137119-02 Probe 10-14 shy
3 196061 Mix Hose (sold by the foot) 10 Gal Container 4 150416 Door Switch 137120 Base Probe Mtg 4A 114630 Actuator Door Switch 160500 O-Ring
(Not Shown) 114572 Hose Clamp (Not Shown) 5 150527 Retractable Cordset 34
MIg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prlmd UsA
MERCHANDISING ASSY
PART No 115108 115107
PART No
196107-01 196108-01 114610 114608 115132 199030
PART No 162105 162106 112978 158004 158021 158022 158078 158000 158056 158000A 158014 158014A 161000 158049
DESCRIPTION 2S Merchandiser-927-957-978CAB 24 Merchandiser-917CAB
DRIP TRAY
DESCRIPTION
24 Drip Tray-917CAB 26- Drip Tray-927-957-978CAB 24 Tray Insert-917CAD 26 Tray Insert-978CAB-927CAB 26 Tray Insert-957CAB Rubber Bumper (only)
DESCRIPTION Caster With Brake Caster Without Brake Leg-6 4 Cylinder Brush Mix Hose Brush 58 Dia w6 Ft Handle 14 Pump Brush Drain Tube Brush Petrol Gel (12 tube carton) Petrol Gel (6 tube carton) Pe1rol Gel (per tube) Stera Sheen (per case) Stera Sheen (per jar) Pocket Thermometer 1 Dial Z32 Overrun Scale
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SNAKE bull SLUSH
35
36
GEAR REDUCERS Order By Freezer Serial Number
Model 3 CB
153345 5-1 Ratio B side 153004 High Speed Cup ~ (2 ea required) 153005 High Speed Bearing (2 ea required) 153008 Slow Speed Cup (2 ea required) 153009 Slow Speed Bearing (2 ea required) 153052 Slow Speed Seal (2 ea required) 153054 High Speed Seal (2 ea required) 153313 Brass Gear 5-1 Ratio 153336 Slow Speed Shaft Only 5-1 Ratio 153316 Worm Gear On Shaft 5-1 Ratio 114873 Gasket Set
Model 4 CB
153342 10-1 Ratio A side 153343 10-1 Ratio B side
153014 High Speed Cup (2 ea required) 153015 High Speed Bearing (2 ea required) 153011 Slow Speed Cup (2 ea required) 153012 Slow Speed Bearing (2 ea required) 153051 Slow Speed Seal (2 ea required) 153053 High Speed Seal (2 ea required) 153349 Brass Gear 10-1 Ratio 153339 Slow Speed Shaft OnIy 10-1 Ratio 153347 Worm Gear on Shaft 10-1 Ratio 114874 Gasket Set
Winlwin Model
153341 Wintwin 10-1 Ratio A and B Side
153014 High Speed Cup (2 ea required) 153015 High Speed Bearing (2 ea required) 153011 Slow Speed Cup (2 ea required) 153012 Slow Speed Bearing (2 ea required) 153051 Slow Speed Seal (2 ea required) 153053 High Speed Seal (2 ea required) 153349 Brass Gear 153350 Slow Speed Shaft Only 153348 Worm Gear on Shaft 11 4874 Gasket Set
158055 Gear Reducer OU 51001
Drive Coupling (Order By Machine Serial Number)
Mfg by H C DUKE amp SON INC bull 2115 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
917 amp 927 Beater Shaft Assembly
957 Beater Shaft
Item Part No Description
1 196079 Bushing-Cylinder 2 114752 Beater-Assy Long (Shaft) 3 137334 Blade-Scraper Soft Serve 4- 160500 O-Ring (Shaft Seal) 5- 133098 Bushing (Washer-Shaft Seal) 6 160557 Seal-Beater Shaft
-Items 4-6 111875 Seal-Assy Shaft (Complete)
31
1 113438 2 196079 3 137334 4- 160500 5- 133098 6 160557
-Items 4-6 111875
Shaft-Assy Beater Bushing-Cylinder Blade-Scraper O-ring (Shaft Seal) Washer-Shaft Seal (Bushing) Seal-Beater Shaft (Cup)
Seal-Assy Shaft (Complete)
ao
DISPENSING HEAD
16
r
Q
--~
-----_
REF PART No DESCRIPTION Tl3o 6 119928- Door Assembly shy Complete (Items 7-14) 11637- 7 196688 Door shy Less Parts
a 134921 Spigot shy Less Extension 9 134922 Handle Extension shy Spigot
10 162624 Handle 11 159295 OmiddotRings shy Spigot (Lots of 5)12 159309 O-ring shy 4 - Door 13 196066 Air Relief Screw 14 160621 a-Ring shy Air Relief Screw (Lots of 5)15 136126 Rod - Spigot Switch shy 917 8 927 16 136798 HMdKnob
38
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illmols 61244
SUPERIOR QUAUlY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
Duke Soft Serve Freezer Models 917R and 927RN
5 -______
7
6
UPDATEDDispense Head Assembly
Item Part No
115130 1 116321 2 160583 3 115129 4 160562 5 136126 6 134921 SA 162624 68 134922 7 159295 8 160584 9 162625 9A 114341 10 196185 10A 137870 108 136713
116410
Includes items 1-4 6-8
Description
Head-Assy Dispense (Complete) Head-Assy wActualor O-ring (Head-4-inch) Bleeder-Assy (Air Relief Plug) O-ring (Bleeder-Assy) Rod-Spigot Switch Spigot-long Single Handle-Black Tapered Handle-Spigot (Stainless Steel) O-ring (Spigot) O-ring (Extension) Knob-Hand Stud-Assy Cylinder 1-15116 inch (not shown) Nouie-Slar Adapter (accessory) Adapter-Yogurt Nozzle (not shown) Extension-Spigot (accessory-cake not shown) Kit-Dispense Head Switch
( Use only original or authorized replacement parts with this freezer )
DISPENSING HEAD
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH uu
REF PART No 114765
1 196082 2 114313 3 137018 5 136618 6 162626 8 134499 9 162625
10 115129 11 136794 12 159309 13 159295 14 160562 15 136713 16 160584
DESCRIPTION Door Assy-Complete Door-Less Parts Spigot Assy-Side Spigot Only-Center Extension Only-Center Handle Stud-Handle Stop Hand Knob Air Re1ief-Assy Rod-Spigot Switch O-Ring-4-Door O-Ring-Spigot O-Ring-Air Relief Extension-Spigot a-Ring
39
40
PUMP MOTOR AND HOUSING ASSEMBLY SAFETY SWITCH ASSEMBLY
PRESSURE SWITCH ASSEMBLY ijreg~
I
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH IIIUaA
CAB DPR PUMP BREAKDOWN
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 196091 Pump Base 46 114009 Pump Cover 2 136088 Pump Support 47 113464 Base Bracket Assembly 3 150784 Strain Relief Bushing 48 135725 Stud 1-78 4 Power Cord 49 160131 516 Flatwasher 5 160075 10-24 x 38 Screw 50 160293 Speed Clip 6 135416 Cover Electric Box 51 135724 Button 7 160141 14 Lockwasher 52 160140 10 Lockwasher 8 160491 14-20 x 34 Socket Screw 53 135726 Stud 3 9 113497 Motor Cord 18-3 SJT 54 160109 10-24 Hex Nut 10 151127 Motor 40 RPM Soft Serve 55 135729 Switch Actuator 11 160023 14-20 x 1 Screw 56 135731 Stop - Max Pressure 12 153317 Half Moon Key 57 162315 Spring - Soft Serve 13 112925 Cam Drive Plate Assembly 58 160138 10 Flat Washer 14 160495 14-20 x 14 Set Screw 59 160304 10-24 Stop Nut 15 160369 Pin 60 150456 Pressure Switch 16 134614 Swing Clamp 61 135744 Insulator - Fiber 17 134521 Adjusting Clamp 62 160381 6-32 x 1 Socket Screw 18 160488 Thumb Screw 63 160393 6 Flatwasher 19 134604 Bearing Bushing 64 160146 6 Lockwasher 20 134602 Connecting Rod 65 160309 6-32 Hex Nut 21 134601 Piston 66 160006 6-32 x 14 Screw 22 159295 O-Ring 67 160001 8-32 x 38 Screw 23 134603 Wrist Pin 68 160470 8 Lockwasher 24 136089 Cylinder 69 150481 Circuit Breaker 25 199011 Washer Valve 70 135727 Switch Bracket 26 159282 O-Ring 71 136311 Spacer - Cover Switch 27 113839 Pump Valve Housing 72 160028 Truss Head Screw
Assembly (Metal) 14-20 x 34 SST 28 160582 O-Ring 73 160141 Lockwasher 14 29 199020 Sleeve Rubber 74 160104 Hex Nut 14-20 30 135793 Retainer Clip 75 136312 Button Guard 31 135791 Adapter Hose Outlet 76 160020 Hex Hd Cap Screw 32 160581 O-Ring 14-20 x 1 SST 33 135790 Piston 77 113869 Switch Bracket 34 162308 Spring Soft Serve 78 136110 Button Cover Switch 35 135792 Drain Port 79 162314 Spring 36 160611 O-Ring 80 150456 Switch Pump Safety 37 135896 Hose 24 81 135004 Switch Cover 38 160738 Hose Clamp 82 160296 Screw RH 39 136288 Keeper 6-32 x 1-14 40 160554 O-Ring 83 160146 Lockwasher 6 41 160368 Wing Nut Int Tooth 42 130054 Diaphragm Housing 84 160393 Flatwasher 6 43 199019 Diaphragm 85 160309 Hex Nut 6-32 44 196074 Air Tube-Curved 86 114572 Hose Clamp 45 163433 Air Meter - 20 87 160048 14-20 x 12 TRHM
(other sizes available) 88 160308 6-32 x 516 RDHM 89 114581 Circuit Breaker Bracket
Not Shown 90 163109 Stop Pivot 112791 DPR Pressure Gauge
41
Mfg by H C DUKE amp SON INC 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
42
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Unit does not operate 1 Fuse blown at main disconshy 1 Check fuse size check for low nect voltage if not within 10 of
nameplate rating install transformer or call power company
2 Beater motor out on overload 2 Press starter reset button and check for low voltage Check producllemperalure and overrun
3 Disconnected or broken wife 3 Check wiring and wire connecshyin electrical circuit lions repair or replace lead
wires as necessary
4 Faulty selector switch 4 Replace selector switch
5 Out on high pressure 5 Check for low waler supply or dirty air conden ser
6 Out on low pressure 6 Check limit control and freon charge
Compressor does not operate f Troubte in compressor con- I Refer to Trouble-Shootingshyor operates improperly densing circuit Compressor I Condensing
Circuit
2 Faulty capacitor assembly 2 Replace capaCitor assembly (Single phase only)
3 Faulty contactor 3 Replace contaclOr or pOints
Compressor operates but 1 Loose con neclion at motor 1 Tighten connection beater motor does not starter coil (electrical box)
2 Open starter coil 2 Replace coil
3 Faulty capacitor assembly 3 Replace capaCitor assembly (Single phase only)
Dispensed product too hard 1 Cylinder themostat erratic 1 Adjust thermo slat or replace or set too low
2 Faulty time delay relay 2 Replace time delay relay
3 Solenoid valve leaking 3 Replace solenoid valve
4 Low suction pressure 4 See chart on page 15 for adshyjustments
Leaking of mix from rear housshy 1 Damaged bealer shalt seal 1 Replace shaft seal or O-ring ing discharge tube to drip tray inside seal assy
Mig by H C DUKE amp SON INC bull 2116 Eighlh Avenue Easl Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Mix leaking at dispensing head 1 Faulty 4 O-Ring
2 Head not properly installed
1 Replace 4 O-Ring
2 Install head properly
Mix sours in cabinet 1 Cabinet thermostat setting too high
2 Cabinet thermostat detective
3 Cabinet solenoid valve deshyfective
4 Cabinet switch defective
5 Beater motor out on overshyload (cab side)
1 Adjust thermostat
2 Replace thermostat
3 Replace coil or solenoid
4 Replace cabinet switch
S Reset overload for beater motor See pg 42 unit does not operate
Cabinet too COld
Machine runs continually and Product continues to get colder
Compressor operates only when dispensing
Unit runs conMuously Product does nol reach 180 F temperature
6 Door sWitch defectIVe
1 Cabinet thermostat setting too low
2 Defective thermostat
3 Cabinet solenoid stuck open
4 Cabinet expansion valve set too low
1 Plunger switch out of adjustshyment
2 Su ction pressure too low
3 Defective plunger switch
4 Plunger switch rod engaged
5 Faulty time delay relay
6 Starter or relay contacts stuck
7 Faulty thermostat or bulb not deep enough in well
6 Replace door SWitch
1 Adjust thermostat
2 Replace thermostat
3 Replace solenoid
4 Adjust cabinet expansion valve (See pg 15)
1 Adjust plunger switch
2 Adjust expansion valve and check freon charge
3 Replace plunger switch
4 Close plunger completely
5 Replace time delay relay
I 6 Check contacts i
7 Check bulb location or replace thermostat
1 Cylinder themostat setting 1 Adjust thermostat or replace too high or thermostat deshyfective
1 Trouble in compressor I condensing system
2 ExpanSion valve setiing is too high
3 Low on refrigeranl
1 See Trouble-Shooling-CompressorI Condensing circuit
2 Adjust expansion valve
3 Check and repair leak and recharge
1
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE SLUSHbull
43
44
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Dispensed product too soft (Product temperature above 21 0 F)
1 Automatic expansion yalve incorrectly set or erratic in operation
-2 Leak in refrigeration system
resulting in little or no refrigeration
1 Adjust or replace expanSion valve
2 Pump down system or remove refrigerant charge repair leak evacuate and recharge
3 Excessive oil in system 3 Drain compressor to proper oil leyel pump down and flush system
4 Thermostat set too high taulty
or 4 Adiust thermostat or replace
Product dispenses slOWly out dispensing head
1 Reverse rotation 1 Change rotation to clockshywise from front of freezer
2 Dispensing speed adjustshyment boll too far down
2 Adjust bolt upward
3 Pum p problem 3 See pump Trouble-Shooting chart
4 Product too cold 4 See dispensed product too hard pg42
TROUBLE-SHOOTING CHART COMPRESSORICONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor will not start -hums intermittently (cycling on oyerload)
1 Improperly wired
2 Low line Yoltage
3 Open starting capacitor (single phase only)
4 High discharge pressure
1 Check wiring against diagram
2 Ask power company to increase YOltage to not less than 10 below nameplate rating or install transformer Check for inadequate wire size
3 Replace starting capacitor
4 CheCK water regulating valve setting Check water or air condenser and clean if necessary Make sure disshycharge shut-oft valve is open
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor starts but remains 1 Low line voltage 1 Ask power company to in start windings increase voltage to not less (Single phase only) than 10 below nameplate
rating or install transrormer
2 Improperly wired 2 Check wiring against drawing Check wire size
3 Running capacitor shorted 3 Check by disconnecting running capacitor
4 Starting capacitor weak 4 Check capacitor replace
5 High disCharge pressure 5 Check water regulating valve check water or air condenser and clean il necessary Check discharge shut-off valve
Starter burned out 1 Low line voltage 1 Ask power company to inshycrease voltage to not less than 10 below nameplate rating or install transformer
2 Excessive line voltage 2 Ask power company to reduce voltage to maximum of 10 over nameplate rating
Starting capacitors burn out 1 Voltage 100 low 1 Ask power company to (Single phase only) increase voltage to not less
than 10 below nameplate rating or install translonmer
2 Improper capacitor 2 Replace capacitor with properly rated capacitor as listed in manual
Running capacitors burn out 1 Excessive line voltage 1 Ask power company to reshy(Single phase only) duce line voltage to not more
than 10 above rating 01 motor
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
45
46
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Unit operates long or continuously
1 Shortage of gas
2 Dirty condenser
3 Moisture in system
4 Compressor failing
1 Repair leak and recharge
2 Clean condenser
3 Evacuate and recharge system
4 Check compressor lor proper pressures If inadequate replace compressor
Head pressure too high 1 Refrigerant overcharge
2 Air in system
3 Dirty condenser (air cooled)
4 Unit location too warm (air cooled)
5 Restricted water cooled condenser
6 Water turned off or defective
1 Purge system
2 Purge system evacuate and recharge
3 Clean condenser
4 Relocate unIt away from restriction Place nothing against back or on top of unit
5 Clean or replace condenser
6 Turn on water Or replace water regulating valve regulating valve
Head pressure too low 1 Shortage 01 refrigerant 1 Repair leak and recharge
2 Water regulating valve open 2 Adjust regulating valve too wide
Water 1I0wing through water 1 Water regulating valve 1 Replace water regulating valve waste line when unit is not in operation
defective
Noisy compressor 1 Tubing raUle 1 Bend tubes away from contact
NOTE Refer to warranty card prior to compressor replacement
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING DPR PUMP
TROUBLE PROBABLE CAUSE REMEDY
Pump will not run 1 Pump cover removed 1 Install pump cover
2 Pressure switch actuating 2 Free bulton-check spring and
bulton stuck open (in) pressure switch alignment
3 Pressure switch burned out 3 Replace pressure switch
4 Starting switch in motor bad 4 Install new starting switch
5 Motor burned out 5 Replace motor
6 Circuit breaker kicked out 6 Allow to re- set Replace it or faulty circuit breaker will not
automatically re-set
Motor runs-cam drive plate 1 Loose cam drive plate 1 Tighten set screw in cam will not turn drive plate Check woodruff key
2 Gear stripped 2 Replace gear
Pump will not shut off Mix 1 Pressure swilch actuating 1 Free button-check pressure shoots out pressure relief bulton stuck closed (out) switch alignment
2 Pressure switch stuck in 2 Replace pressure switch closed position
3 Pressure switch assy out 3 Using pressure gauge adjust of adjustment pressure
4 Dirty or plugged diaphragm 4 Disassemble and clean housing (Ref 42) housing
5 Defective O-Ring on 5 Replace O-Ring pressure relief piston
Pump will not prime 1 Insufficient supply of mix 1 Replenish mix supply
2 Piston O-ring defective-no 2 Replace piston O-Ring and suction lubricate
3 Washer valve not sealing 3 Replace washer valve DO NOT LUBRICATE
Pump primes No pressure in 1 Sleeve (Rei 29) not sealing 1 Replace sleeve DO NOT cylinder properly LUBRICATE
2 Loose hose connection on 2 Install or tighten hose clamp pump valve housing (Ref 27)
Mix shoots out Of air intake line 1 Washer valve (Ref 25) 1 Replace washer valve-DO not sealing properly NOT LUBRICATE
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOfT SERVE bull SHAKE bull SLUSH
47
48
TROUBLE-SHOOTING DPR PUMP
Too much air overrun too high-popping problems
Product dispenses slowly out of disPenSing head
1 Air meter too large (Ref 45)
2 Air leak befween mix conshytainer and mix inlet
3 Air line hose crackedshysucking air (Ref 44)
4 Pump pressure too lowshycylinder not full
1 Pump pressure too low
2 PrOduct too cold
3 Low overrun
Diaphragm housing leaking mix 1 Diaphragm housing loose
2 Diaphragm defective
Piston drive assy noisy 1 Bushing bearing worn
2 Defective gear in gear motor
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SIfAKE bull SLUSH
REMEDY
1 Replace washer valve-DO NOT LUBRICATE
2 Install clamp on hose
1 Replace O-Ring and LUBRIshyCATE
1 Clean or replace air meter
2 Replace tube
1 Install smaller air meier
2 Repair as needed
3 Replace air line hose
4 Using pressure gauge adjust pressure switch
1 Using pressure gauge adjust pump pressure
2 Check product temperatureshyshould be about 18 F
3 Check meter-if plugged-clean
1 Tighten wing nuls (Ref 41)
2 Replace diaphragm (Ref 43)
1 Replace bushing bearing (Ref 19)
2 Replace gear
TROUBLE
Mix inlet hose loses prime
Mix on top of piston
PROBABLE CAUSE
1 Washer valve (Ref 25) not sealing properly
2 Mix inlet hose loose
1 Piston O-Ring leaking (Ref 22)
No Air (Overrun) 11 Ai r meter plugged (Ref I 45)
2 Curved air tube pinched
--
DPR PUMP aI
PART NO 199019(i) PART NO 199020 reg DIAPHRAGM RUBBER SLEEVE
PART NO159295 PART NO 159282reg O-RING O-RING0
PART NO 160581reg O-RING
o PART NO PART NO
PART NO199011() 160611(8) 160582 WASHER VALVE O-RING O-RING
PISTON
cJ
DIAPHRAGM HOUSING
CYLINDER
VALVE HOUSIN6 ASSEMBLY
PUUPOUTLET
DRAIN PORT
I PHNO309-755-4553 O-RING CHART HCDUKEampSONINC I
1 I84Z08 SOFT SERVE DISPENSING HEADS I
o PART NO 1605620
PAR~159--1b
PART NO PART NO 1605841 59295()
I PHNO 309-755-4553 O-R ING CHART HCDUKEampSONINC I
- Cover
- Table of Contents
- Safety
- Uncrating amp Inspection13
- Explanation of Electrical Controls
- Operation of Machine
- General Information
- Maintenance amp Adjustment
- Parts Breakdowns
- Trouble-Shooting Charts
- O-ring Charts
-
20
PULLEY ALIGNMENT AND BELT TENSION ONLY TO BE PERFORMED BY A QUALIFIED SERVICE TECHNICIAN
WARNING
A MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFF POSITION AND THAT THE MAIN POWER SUPPLY IS DISCONNECTED
Remove the side panels to expose the pulleys and belts
Check the alignment of the beater motor pulley and gear reducer pulley by placing a straight edge across the faces of the two pulleys If the pulleys are not aligned adjust as necessary until proper alignment is obtained
Depress the belts with a finger at a point midway between the two pulleys When properly adjusted the belts should depress 12 from its normal position with approximately 5 pounds of pressure If the belts are too tight or too loose adjust as necessary until proper belt deflection is obtained Loosen four (4) bolts which hold the motor mounting plate to the frame With these loose adjust tension bolt in or out as required to obtain proper belt tension Retighten bolts
BELTS
Periodically inspect the belts If they are worn excessively replace both belts For best results it is advisable to replace both belts as they are manufactured in matched sets
SCRAPER BLADES
NOTE Be sure to purge all of the sanitizer from the mix system before operating the freezer (see page 12) Failure to completely remove sanitizer or water trom the freezing cylinder before placing the machine in the Automatic position may cause blade breakage and damage the freezer
o o
NEW BlADE WORN BLADE
Replace blades if worn 316 or more
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
END PLAY FOR BEATER DRIVE COUPLING
It is very important that the drive coupling located on the gear reducer be set properly Referring to the Drive Coupling Illustration the following procedure should be followed in setting the end play
WARNING
MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFF POSITION AND THAT THE ELECTRICAL POWER TO THE MACHINE IS DISCONNECTED SO THAT THE UNIT WILL NOT OPERATE
------
DRIVE COUPLING ILLUSTRATION
REF DESCRIPTION REF DESCRIPTION 1 Gear Reducer 6 Reducer Mounting Plate 2 Beater Shaft 7 Set Screws 3 Shaft Seal 8 Bolt Gear Reducer 4 Drive Coupling 9 Bolt Reducer Mounting Plate 5 Spacer 10 Key
11 Output Shaft
Improper drive coupling spacing will damage the beater shaft dispensing head and drive coupling When checking end play settings or replacing a coupling proceed as follows
REMOVING COUPLING
WARNING
DISCONNECT MAIN POWER SUPPLY
Mig by H C DUKE amp SON INC bull 2116 Eighth Allenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SO SERVE bull SHAKE bull SLUSH
21
22
(1) Remove Beater Shaft (Ref 2)
(2) Remove both drive belts (not shown)
(3) Remove gear reducer bolts (Ref 8) Six (6) bolts are located around the face of the reducer
NOTE Remove the top bolt last holding the bottom of the reducer as you do so
(4) Remove the gear reducer (Ref 1) and place-on table or bench
(5) Replace two (2) bolts (Ref 8) one (1) at the top and one (1) at the bottom so that the reducer cover will not come off while the coupling is changed
(6) Loosen the four (4) set screws (Ref 7) and remove the drive coupling (Ref 4) Should the coupling be stuck tight to the ouput shaft lightly tap the coupling from the back with a hammer and bar Sometimes due to age this coupling will stick so tight it will have to be removed with a pulley removing tool or a wheel puller
(7) Remove the key (Ref 10)
INSTALLING THE NEW COUPLING
(1) Clean gear reducer output shaft (Ref 11) with fine emery cloth and slide the new drive coupling on the reducer shaft The coupling should slide on the shaft all the way without the key If the coupling doesnt slide completely on check both coupling and reducer shaft for burrs When a smooth sliding fit is achieved remove coupling and proceed with final assembly
(2) Place key (Ref 10) in keyway slot on the reducer output shaft Keep the key flush with the front end of the output shaft (Ref 11)
(3) Slide the coupling (Ref 4) on the output shaft until it bottoms out on the shaft Leave the four (4) set screws loose as the coupling will have to be adjusted
(4) Remove the two (2) bolts added in preceding Step 5
(5) Place one (1) gear reducer bolt (Ref 8) in the top hole of the cylinder mounting plate
(6) Insert gear reducer into cylinder mounting plate and start top bolt (Ref 8) Do nol tighten completely Now insert the other bolts one at a time When all bolts are in tighten each boll
NOTE Due to very close tolerance between the gear reducer and cylinder mounting plate no alignment is required when Installing the reducer When the reducer bolts are tightened the reducer will seH-align with the cylinder
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
(7) Insert the beater shaft (Ref 2) with the shaft seal and blades into the cylinder and engage beater shaft in the drive coupling Place bushing on front of beater shaft
(8) Tape a dime (10 cents) to the back of the dispensing head in the very center at the point where the beater shaft touches the dispensing head The dime is used to acquire the proper end play setting on the drive coupling which is approximately 332
(9) Place the dispensing head into the cylinder and tighten with the hand knobs Important make sure hand knobs are tight and head is against the end of the cylinder tube
(10) Slide the drive coupling (Ref 4) forward until it is tight against the beater shaft and lock into place the four (4) set screws (Ref n
(11) Remove the dime from the back of the dispensing head
(12) Replace the drive belts
(13) Turn on electrical power
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
23
PANEL BREAKDOWN - 917CAB
~--~
3
REF PART No 1A 114544 1B 112991 2A 136075 2B 136102
3A 137027 3A 137028
3A 136105 3B 136103
3B 134817 4 134818
4 136101 5A 114780
5A 113570 5B 112967
6 112960 7 133291
24 A 917CAB only
I
dJ
DESCRIPTION Frame ssmiddoty Frame ASsmiddoty Lower Side Panel Lower Side Panel LH Side Panel RH Side Panel Upper Side Panel Upper Side Panel Upper Side Panel Rear Panel Rear Panel Top Cover ASsmiddoty Top Cover ASsmiddoty Top Cover ASsmiddoty Filler Panel ASsmiddoty Top Filler Strip
B bull 44 CAB only
~
[At 16 lt0
REF 8
9 10 11 12 12A 13
14 15 16 16A
Air Cooled only
PART No DESCRIPTION 132687 Dispense Panel 134247-01 Dispense Panel Cab-W
Drip Tray (See Pg 35) 114260-01 Door Assmiddoty wIHinges 132444-01 Left Hand Filler Strip 162045 Upper Hinge 162052 Spring LH 162046 Lower Hinge 160026 Screw 160020 Bolt 160139 Washer 110205 Syrup Jar Enclosure 160563-01 Door Gasket 01-Groove) 159174 Drip Tray Button 160293 Clip for Button
Water Cooled only
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
~~
1 ~~o ~o
)
cp I
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REF PART No DESCRIPTION REF PART No DESCRIPTION 1 114538 Frame Assy 10 162045 bull Upper Hinge 2 136289 Side Panel LH lOA 162052 Spring LH 3 136313 Rear Panel 11 162046 Lower Hinge 4 114006 Top Panel AC llA 160026 Screw 4A 114428 Top Panel WC l1B 160020 Bolt 4B 114157 Top Panel AC Remote l1C 160139 Washer 5 113983 Front Panel Assy 927CAB 12 136216 Side Panel RH 5A 113985 Front Panel Assy 957cAB 13 160563 Door Gasket (V-Groove) 6 130021 Rear Corner Channel RH 14 159174 Drip Tray Button 6A 135254 Rear Corner Channel LH 14A 160293 Clip for Button 7 137228 Dispensing Panel 162108 Stop Pin (Screw In) 8 Drip Tray (See Pg 35) 136199 Door Pull 9 114260 Door Assy wHinges
25
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
SOFT SERVE CAB ELECTRICAL BOX
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 Contactor (Order By Freezer 5 150463 Selector Switch
Serial Number) 6 159235 Toggle Switch (Pump) 2 Overload (Order By Freezer 7 150456 Spigot Switch
Serial Number) 7A 136124 Button - Spigot Switch 2A Heater Coil (Order By Freezer 7B 162302 Spring - Spigot Switch
Serial Number) 8 150553 Pilot Light - Amber 3 Starter (Order By Freezer 9 150552 Pilot Light - Red
Serial Number) 10 161026 Thermometer (Not Shown) 4 150208 Timer
26
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Pointed u
- - --- -
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prifllcl If USA
In-
ca ~ Q ltC wr w I
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SOFT-SERVE - SINGLE HEAD CAB
REF PART No 1 151351
2 3 4 5 6 151044
151052 7
8 155039 9 155400 10 155117
11 151084
12A 159021 13 155401 13A 155423 14 155403 15 155422
16 154976 16 154975 17 159203 18 155051 19 112901
155410 20 155044
151348
DESCRIPTION Capacitor Relay Assembly (single phase)
150247 Start Capacitor
150249 Run Capacitor 150245 Relay Motor Capacitors (order by freezer serial no) Gear Reducer (see gear reducer breakdown page 36) Driven Pulley (order by freezer serial no) Belt (order by freezer serial no) Motor 1-phase 230 volt Motor 3-phase 208230 volt Driver Pulley (order by freezer serial no)
Water Condenser Automatic Expansion Valve (Cylinder) Air Condenser
Condenser Fan Motor
Condenser Fan Blade High Pressure Cut-Out shyHigh Pressure Cut-Out shyLow Pressure Cut-Out Solenoid Valve
Compressor 230160
AC WC
Compressor 208-230360 Sight Glass Drier (38) Receiver Tank Assembly Water Valve (not shown) Service Valve Compressor Mounting Kit
Note I) lt0 For All 50-Cycle Freezers Order By Freezer Serial Number
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Printad I usA
30
c W -I o o o a w ~ 3
III
~ W -I III J o C
w gta w en u o en
SOFT-SERVE - DOUBLE CAB - WATER COOLED REF PART No DESCRIPTION 1 155026 Water Condenser (B-side) 1 A 155039 Water Condenser (A-side) 2 159203 Sight Glass 3 155051 Drier (38) 4 155400 Automatic Expansion Valve (Cylinder) 5 Gear Reducer (see gear reducer breakdown page 36) 6 155410 Water Valve 7 155423 High Pressure Cut-Out 8 155403 Low Pressure Cut-Out 9 154976 Compressor 230160
151351 Capacitor Relay Assembly (Single Phase) 150247 Start Capacitor 150249 Run Capacitor 150245 Relay
9A 154975 Compressor 208-230360~-11 NOT USED ON THIS MODEL 12 155442 Low Temp Control 13 Driven Pulley (order by freezer serial no) 14 Belt (order by freezer serial no) 15 Driver Pulley (order by freezer serial no) 16 155422 Solenoid Valve 17 151044 Motor 1 phase 230 volt 17A 151052 Motor 3 phase 208230 volt 18 Motor Capacitors single phase only (order by freezer serial no)
Note For All 50-Cycle Freezers Order By Freezer Serial Number
cgt
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH _InU5A
32
c W J o o o -a oCt
aI oCt o W I m ) o c w gta w Ch t--LL o Ch
SOFTmiddotSERVE bull DOUBLE CAB - AIR COOLED REF PART No 1 155120 2 159020 3 151080 4 155400 5 6 159203 7 155051 8 112901 9 151044 9A 151052 10 11 12 14 154976
14A 154975 15 155401 16 155403 17 155443 18 155442 19
21 155422
DESCRIPTION Condenser Fan Blade Fan Motor Automatic Expansion Valve (Cylinder) Reducer (see gear reducer breakdown page 36) Sight Glass Drier Receiver Assembly Motor 1-Phase 230 Volt Motor 3-Phase 208230 Volt Driven Pulley (order by freezer serial no) Belt (ordr by freezer serial no) Driver Pulley (order by freezer serial no) Compressor 230160 151351 Capacitor Relay Assembly (Single Phase)
150247 Start Capacitor 150249 Run Capacitor 150245 Relay
Compressor 208-230360 High Pressure Cut-Out Low Pressure Cut-Out Cabinet Thermostat Low Temp Thermostat NOT USED ON THIS MODEL Motor Capacitors single phase only (order by freezer serial no) Solenoid Valve
Note For All 50-Cycle Freezers Order By Freezer Serial Number
Vl Vl
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prinled In USA
CAB PARTS BREAKDOWN
REF PART No DESCRIPTION PART No DESCRIPTION 1 155109 Cabinet Coil 136297 Condensate Pan (Not Shown) 1A 155113 Motor Cabinet Fan 196092 Mix Tank 7-12 Gal 1B 155099 Fan Blade Cabinet Coil 113997 Front Lid Mix Container
7-12 Gal 136248-01 Rear Lid Mix Cont 7-12 Gal
10 155416 CAB Automatic Expansion 130092 Mix Tube Valve 196028 Mix Tank 10 Gal
137119 Probe 11 -1 4 shy1E 155114 Fan Grill amp Bracket 7-12 Gal Container 1F 155116 Knob 137119-01 Probe 10-34 shy2 113898 DPR Pump Less Motor 7-12 amp 10
(see pump breakdown Gal Container pg 38) 137119-02 Probe 10-14 shy
3 196061 Mix Hose (sold by the foot) 10 Gal Container 4 150416 Door Switch 137120 Base Probe Mtg 4A 114630 Actuator Door Switch 160500 O-Ring
(Not Shown) 114572 Hose Clamp (Not Shown) 5 150527 Retractable Cordset 34
MIg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prlmd UsA
MERCHANDISING ASSY
PART No 115108 115107
PART No
196107-01 196108-01 114610 114608 115132 199030
PART No 162105 162106 112978 158004 158021 158022 158078 158000 158056 158000A 158014 158014A 161000 158049
DESCRIPTION 2S Merchandiser-927-957-978CAB 24 Merchandiser-917CAB
DRIP TRAY
DESCRIPTION
24 Drip Tray-917CAB 26- Drip Tray-927-957-978CAB 24 Tray Insert-917CAD 26 Tray Insert-978CAB-927CAB 26 Tray Insert-957CAB Rubber Bumper (only)
DESCRIPTION Caster With Brake Caster Without Brake Leg-6 4 Cylinder Brush Mix Hose Brush 58 Dia w6 Ft Handle 14 Pump Brush Drain Tube Brush Petrol Gel (12 tube carton) Petrol Gel (6 tube carton) Pe1rol Gel (per tube) Stera Sheen (per case) Stera Sheen (per jar) Pocket Thermometer 1 Dial Z32 Overrun Scale
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SNAKE bull SLUSH
35
36
GEAR REDUCERS Order By Freezer Serial Number
Model 3 CB
153345 5-1 Ratio B side 153004 High Speed Cup ~ (2 ea required) 153005 High Speed Bearing (2 ea required) 153008 Slow Speed Cup (2 ea required) 153009 Slow Speed Bearing (2 ea required) 153052 Slow Speed Seal (2 ea required) 153054 High Speed Seal (2 ea required) 153313 Brass Gear 5-1 Ratio 153336 Slow Speed Shaft Only 5-1 Ratio 153316 Worm Gear On Shaft 5-1 Ratio 114873 Gasket Set
Model 4 CB
153342 10-1 Ratio A side 153343 10-1 Ratio B side
153014 High Speed Cup (2 ea required) 153015 High Speed Bearing (2 ea required) 153011 Slow Speed Cup (2 ea required) 153012 Slow Speed Bearing (2 ea required) 153051 Slow Speed Seal (2 ea required) 153053 High Speed Seal (2 ea required) 153349 Brass Gear 10-1 Ratio 153339 Slow Speed Shaft OnIy 10-1 Ratio 153347 Worm Gear on Shaft 10-1 Ratio 114874 Gasket Set
Winlwin Model
153341 Wintwin 10-1 Ratio A and B Side
153014 High Speed Cup (2 ea required) 153015 High Speed Bearing (2 ea required) 153011 Slow Speed Cup (2 ea required) 153012 Slow Speed Bearing (2 ea required) 153051 Slow Speed Seal (2 ea required) 153053 High Speed Seal (2 ea required) 153349 Brass Gear 153350 Slow Speed Shaft Only 153348 Worm Gear on Shaft 11 4874 Gasket Set
158055 Gear Reducer OU 51001
Drive Coupling (Order By Machine Serial Number)
Mfg by H C DUKE amp SON INC bull 2115 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
917 amp 927 Beater Shaft Assembly
957 Beater Shaft
Item Part No Description
1 196079 Bushing-Cylinder 2 114752 Beater-Assy Long (Shaft) 3 137334 Blade-Scraper Soft Serve 4- 160500 O-Ring (Shaft Seal) 5- 133098 Bushing (Washer-Shaft Seal) 6 160557 Seal-Beater Shaft
-Items 4-6 111875 Seal-Assy Shaft (Complete)
31
1 113438 2 196079 3 137334 4- 160500 5- 133098 6 160557
-Items 4-6 111875
Shaft-Assy Beater Bushing-Cylinder Blade-Scraper O-ring (Shaft Seal) Washer-Shaft Seal (Bushing) Seal-Beater Shaft (Cup)
Seal-Assy Shaft (Complete)
ao
DISPENSING HEAD
16
r
Q
--~
-----_
REF PART No DESCRIPTION Tl3o 6 119928- Door Assembly shy Complete (Items 7-14) 11637- 7 196688 Door shy Less Parts
a 134921 Spigot shy Less Extension 9 134922 Handle Extension shy Spigot
10 162624 Handle 11 159295 OmiddotRings shy Spigot (Lots of 5)12 159309 O-ring shy 4 - Door 13 196066 Air Relief Screw 14 160621 a-Ring shy Air Relief Screw (Lots of 5)15 136126 Rod - Spigot Switch shy 917 8 927 16 136798 HMdKnob
38
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illmols 61244
SUPERIOR QUAUlY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
Duke Soft Serve Freezer Models 917R and 927RN
5 -______
7
6
UPDATEDDispense Head Assembly
Item Part No
115130 1 116321 2 160583 3 115129 4 160562 5 136126 6 134921 SA 162624 68 134922 7 159295 8 160584 9 162625 9A 114341 10 196185 10A 137870 108 136713
116410
Includes items 1-4 6-8
Description
Head-Assy Dispense (Complete) Head-Assy wActualor O-ring (Head-4-inch) Bleeder-Assy (Air Relief Plug) O-ring (Bleeder-Assy) Rod-Spigot Switch Spigot-long Single Handle-Black Tapered Handle-Spigot (Stainless Steel) O-ring (Spigot) O-ring (Extension) Knob-Hand Stud-Assy Cylinder 1-15116 inch (not shown) Nouie-Slar Adapter (accessory) Adapter-Yogurt Nozzle (not shown) Extension-Spigot (accessory-cake not shown) Kit-Dispense Head Switch
( Use only original or authorized replacement parts with this freezer )
DISPENSING HEAD
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH uu
REF PART No 114765
1 196082 2 114313 3 137018 5 136618 6 162626 8 134499 9 162625
10 115129 11 136794 12 159309 13 159295 14 160562 15 136713 16 160584
DESCRIPTION Door Assy-Complete Door-Less Parts Spigot Assy-Side Spigot Only-Center Extension Only-Center Handle Stud-Handle Stop Hand Knob Air Re1ief-Assy Rod-Spigot Switch O-Ring-4-Door O-Ring-Spigot O-Ring-Air Relief Extension-Spigot a-Ring
39
40
PUMP MOTOR AND HOUSING ASSEMBLY SAFETY SWITCH ASSEMBLY
PRESSURE SWITCH ASSEMBLY ijreg~
I
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH IIIUaA
CAB DPR PUMP BREAKDOWN
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 196091 Pump Base 46 114009 Pump Cover 2 136088 Pump Support 47 113464 Base Bracket Assembly 3 150784 Strain Relief Bushing 48 135725 Stud 1-78 4 Power Cord 49 160131 516 Flatwasher 5 160075 10-24 x 38 Screw 50 160293 Speed Clip 6 135416 Cover Electric Box 51 135724 Button 7 160141 14 Lockwasher 52 160140 10 Lockwasher 8 160491 14-20 x 34 Socket Screw 53 135726 Stud 3 9 113497 Motor Cord 18-3 SJT 54 160109 10-24 Hex Nut 10 151127 Motor 40 RPM Soft Serve 55 135729 Switch Actuator 11 160023 14-20 x 1 Screw 56 135731 Stop - Max Pressure 12 153317 Half Moon Key 57 162315 Spring - Soft Serve 13 112925 Cam Drive Plate Assembly 58 160138 10 Flat Washer 14 160495 14-20 x 14 Set Screw 59 160304 10-24 Stop Nut 15 160369 Pin 60 150456 Pressure Switch 16 134614 Swing Clamp 61 135744 Insulator - Fiber 17 134521 Adjusting Clamp 62 160381 6-32 x 1 Socket Screw 18 160488 Thumb Screw 63 160393 6 Flatwasher 19 134604 Bearing Bushing 64 160146 6 Lockwasher 20 134602 Connecting Rod 65 160309 6-32 Hex Nut 21 134601 Piston 66 160006 6-32 x 14 Screw 22 159295 O-Ring 67 160001 8-32 x 38 Screw 23 134603 Wrist Pin 68 160470 8 Lockwasher 24 136089 Cylinder 69 150481 Circuit Breaker 25 199011 Washer Valve 70 135727 Switch Bracket 26 159282 O-Ring 71 136311 Spacer - Cover Switch 27 113839 Pump Valve Housing 72 160028 Truss Head Screw
Assembly (Metal) 14-20 x 34 SST 28 160582 O-Ring 73 160141 Lockwasher 14 29 199020 Sleeve Rubber 74 160104 Hex Nut 14-20 30 135793 Retainer Clip 75 136312 Button Guard 31 135791 Adapter Hose Outlet 76 160020 Hex Hd Cap Screw 32 160581 O-Ring 14-20 x 1 SST 33 135790 Piston 77 113869 Switch Bracket 34 162308 Spring Soft Serve 78 136110 Button Cover Switch 35 135792 Drain Port 79 162314 Spring 36 160611 O-Ring 80 150456 Switch Pump Safety 37 135896 Hose 24 81 135004 Switch Cover 38 160738 Hose Clamp 82 160296 Screw RH 39 136288 Keeper 6-32 x 1-14 40 160554 O-Ring 83 160146 Lockwasher 6 41 160368 Wing Nut Int Tooth 42 130054 Diaphragm Housing 84 160393 Flatwasher 6 43 199019 Diaphragm 85 160309 Hex Nut 6-32 44 196074 Air Tube-Curved 86 114572 Hose Clamp 45 163433 Air Meter - 20 87 160048 14-20 x 12 TRHM
(other sizes available) 88 160308 6-32 x 516 RDHM 89 114581 Circuit Breaker Bracket
Not Shown 90 163109 Stop Pivot 112791 DPR Pressure Gauge
41
Mfg by H C DUKE amp SON INC 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
42
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Unit does not operate 1 Fuse blown at main disconshy 1 Check fuse size check for low nect voltage if not within 10 of
nameplate rating install transformer or call power company
2 Beater motor out on overload 2 Press starter reset button and check for low voltage Check producllemperalure and overrun
3 Disconnected or broken wife 3 Check wiring and wire connecshyin electrical circuit lions repair or replace lead
wires as necessary
4 Faulty selector switch 4 Replace selector switch
5 Out on high pressure 5 Check for low waler supply or dirty air conden ser
6 Out on low pressure 6 Check limit control and freon charge
Compressor does not operate f Troubte in compressor con- I Refer to Trouble-Shootingshyor operates improperly densing circuit Compressor I Condensing
Circuit
2 Faulty capacitor assembly 2 Replace capaCitor assembly (Single phase only)
3 Faulty contactor 3 Replace contaclOr or pOints
Compressor operates but 1 Loose con neclion at motor 1 Tighten connection beater motor does not starter coil (electrical box)
2 Open starter coil 2 Replace coil
3 Faulty capacitor assembly 3 Replace capaCitor assembly (Single phase only)
Dispensed product too hard 1 Cylinder themostat erratic 1 Adjust thermo slat or replace or set too low
2 Faulty time delay relay 2 Replace time delay relay
3 Solenoid valve leaking 3 Replace solenoid valve
4 Low suction pressure 4 See chart on page 15 for adshyjustments
Leaking of mix from rear housshy 1 Damaged bealer shalt seal 1 Replace shaft seal or O-ring ing discharge tube to drip tray inside seal assy
Mig by H C DUKE amp SON INC bull 2116 Eighlh Avenue Easl Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Mix leaking at dispensing head 1 Faulty 4 O-Ring
2 Head not properly installed
1 Replace 4 O-Ring
2 Install head properly
Mix sours in cabinet 1 Cabinet thermostat setting too high
2 Cabinet thermostat detective
3 Cabinet solenoid valve deshyfective
4 Cabinet switch defective
5 Beater motor out on overshyload (cab side)
1 Adjust thermostat
2 Replace thermostat
3 Replace coil or solenoid
4 Replace cabinet switch
S Reset overload for beater motor See pg 42 unit does not operate
Cabinet too COld
Machine runs continually and Product continues to get colder
Compressor operates only when dispensing
Unit runs conMuously Product does nol reach 180 F temperature
6 Door sWitch defectIVe
1 Cabinet thermostat setting too low
2 Defective thermostat
3 Cabinet solenoid stuck open
4 Cabinet expansion valve set too low
1 Plunger switch out of adjustshyment
2 Su ction pressure too low
3 Defective plunger switch
4 Plunger switch rod engaged
5 Faulty time delay relay
6 Starter or relay contacts stuck
7 Faulty thermostat or bulb not deep enough in well
6 Replace door SWitch
1 Adjust thermostat
2 Replace thermostat
3 Replace solenoid
4 Adjust cabinet expansion valve (See pg 15)
1 Adjust plunger switch
2 Adjust expansion valve and check freon charge
3 Replace plunger switch
4 Close plunger completely
5 Replace time delay relay
I 6 Check contacts i
7 Check bulb location or replace thermostat
1 Cylinder themostat setting 1 Adjust thermostat or replace too high or thermostat deshyfective
1 Trouble in compressor I condensing system
2 ExpanSion valve setiing is too high
3 Low on refrigeranl
1 See Trouble-Shooling-CompressorI Condensing circuit
2 Adjust expansion valve
3 Check and repair leak and recharge
1
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE SLUSHbull
43
44
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Dispensed product too soft (Product temperature above 21 0 F)
1 Automatic expansion yalve incorrectly set or erratic in operation
-2 Leak in refrigeration system
resulting in little or no refrigeration
1 Adjust or replace expanSion valve
2 Pump down system or remove refrigerant charge repair leak evacuate and recharge
3 Excessive oil in system 3 Drain compressor to proper oil leyel pump down and flush system
4 Thermostat set too high taulty
or 4 Adiust thermostat or replace
Product dispenses slOWly out dispensing head
1 Reverse rotation 1 Change rotation to clockshywise from front of freezer
2 Dispensing speed adjustshyment boll too far down
2 Adjust bolt upward
3 Pum p problem 3 See pump Trouble-Shooting chart
4 Product too cold 4 See dispensed product too hard pg42
TROUBLE-SHOOTING CHART COMPRESSORICONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor will not start -hums intermittently (cycling on oyerload)
1 Improperly wired
2 Low line Yoltage
3 Open starting capacitor (single phase only)
4 High discharge pressure
1 Check wiring against diagram
2 Ask power company to increase YOltage to not less than 10 below nameplate rating or install transformer Check for inadequate wire size
3 Replace starting capacitor
4 CheCK water regulating valve setting Check water or air condenser and clean if necessary Make sure disshycharge shut-oft valve is open
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor starts but remains 1 Low line voltage 1 Ask power company to in start windings increase voltage to not less (Single phase only) than 10 below nameplate
rating or install transrormer
2 Improperly wired 2 Check wiring against drawing Check wire size
3 Running capacitor shorted 3 Check by disconnecting running capacitor
4 Starting capacitor weak 4 Check capacitor replace
5 High disCharge pressure 5 Check water regulating valve check water or air condenser and clean il necessary Check discharge shut-off valve
Starter burned out 1 Low line voltage 1 Ask power company to inshycrease voltage to not less than 10 below nameplate rating or install transformer
2 Excessive line voltage 2 Ask power company to reduce voltage to maximum of 10 over nameplate rating
Starting capacitors burn out 1 Voltage 100 low 1 Ask power company to (Single phase only) increase voltage to not less
than 10 below nameplate rating or install translonmer
2 Improper capacitor 2 Replace capacitor with properly rated capacitor as listed in manual
Running capacitors burn out 1 Excessive line voltage 1 Ask power company to reshy(Single phase only) duce line voltage to not more
than 10 above rating 01 motor
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
45
46
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Unit operates long or continuously
1 Shortage of gas
2 Dirty condenser
3 Moisture in system
4 Compressor failing
1 Repair leak and recharge
2 Clean condenser
3 Evacuate and recharge system
4 Check compressor lor proper pressures If inadequate replace compressor
Head pressure too high 1 Refrigerant overcharge
2 Air in system
3 Dirty condenser (air cooled)
4 Unit location too warm (air cooled)
5 Restricted water cooled condenser
6 Water turned off or defective
1 Purge system
2 Purge system evacuate and recharge
3 Clean condenser
4 Relocate unIt away from restriction Place nothing against back or on top of unit
5 Clean or replace condenser
6 Turn on water Or replace water regulating valve regulating valve
Head pressure too low 1 Shortage 01 refrigerant 1 Repair leak and recharge
2 Water regulating valve open 2 Adjust regulating valve too wide
Water 1I0wing through water 1 Water regulating valve 1 Replace water regulating valve waste line when unit is not in operation
defective
Noisy compressor 1 Tubing raUle 1 Bend tubes away from contact
NOTE Refer to warranty card prior to compressor replacement
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING DPR PUMP
TROUBLE PROBABLE CAUSE REMEDY
Pump will not run 1 Pump cover removed 1 Install pump cover
2 Pressure switch actuating 2 Free bulton-check spring and
bulton stuck open (in) pressure switch alignment
3 Pressure switch burned out 3 Replace pressure switch
4 Starting switch in motor bad 4 Install new starting switch
5 Motor burned out 5 Replace motor
6 Circuit breaker kicked out 6 Allow to re- set Replace it or faulty circuit breaker will not
automatically re-set
Motor runs-cam drive plate 1 Loose cam drive plate 1 Tighten set screw in cam will not turn drive plate Check woodruff key
2 Gear stripped 2 Replace gear
Pump will not shut off Mix 1 Pressure swilch actuating 1 Free button-check pressure shoots out pressure relief bulton stuck closed (out) switch alignment
2 Pressure switch stuck in 2 Replace pressure switch closed position
3 Pressure switch assy out 3 Using pressure gauge adjust of adjustment pressure
4 Dirty or plugged diaphragm 4 Disassemble and clean housing (Ref 42) housing
5 Defective O-Ring on 5 Replace O-Ring pressure relief piston
Pump will not prime 1 Insufficient supply of mix 1 Replenish mix supply
2 Piston O-ring defective-no 2 Replace piston O-Ring and suction lubricate
3 Washer valve not sealing 3 Replace washer valve DO NOT LUBRICATE
Pump primes No pressure in 1 Sleeve (Rei 29) not sealing 1 Replace sleeve DO NOT cylinder properly LUBRICATE
2 Loose hose connection on 2 Install or tighten hose clamp pump valve housing (Ref 27)
Mix shoots out Of air intake line 1 Washer valve (Ref 25) 1 Replace washer valve-DO not sealing properly NOT LUBRICATE
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOfT SERVE bull SHAKE bull SLUSH
47
48
TROUBLE-SHOOTING DPR PUMP
Too much air overrun too high-popping problems
Product dispenses slowly out of disPenSing head
1 Air meter too large (Ref 45)
2 Air leak befween mix conshytainer and mix inlet
3 Air line hose crackedshysucking air (Ref 44)
4 Pump pressure too lowshycylinder not full
1 Pump pressure too low
2 PrOduct too cold
3 Low overrun
Diaphragm housing leaking mix 1 Diaphragm housing loose
2 Diaphragm defective
Piston drive assy noisy 1 Bushing bearing worn
2 Defective gear in gear motor
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SIfAKE bull SLUSH
REMEDY
1 Replace washer valve-DO NOT LUBRICATE
2 Install clamp on hose
1 Replace O-Ring and LUBRIshyCATE
1 Clean or replace air meter
2 Replace tube
1 Install smaller air meier
2 Repair as needed
3 Replace air line hose
4 Using pressure gauge adjust pressure switch
1 Using pressure gauge adjust pump pressure
2 Check product temperatureshyshould be about 18 F
3 Check meter-if plugged-clean
1 Tighten wing nuls (Ref 41)
2 Replace diaphragm (Ref 43)
1 Replace bushing bearing (Ref 19)
2 Replace gear
TROUBLE
Mix inlet hose loses prime
Mix on top of piston
PROBABLE CAUSE
1 Washer valve (Ref 25) not sealing properly
2 Mix inlet hose loose
1 Piston O-Ring leaking (Ref 22)
No Air (Overrun) 11 Ai r meter plugged (Ref I 45)
2 Curved air tube pinched
--
DPR PUMP aI
PART NO 199019(i) PART NO 199020 reg DIAPHRAGM RUBBER SLEEVE
PART NO159295 PART NO 159282reg O-RING O-RING0
PART NO 160581reg O-RING
o PART NO PART NO
PART NO199011() 160611(8) 160582 WASHER VALVE O-RING O-RING
PISTON
cJ
DIAPHRAGM HOUSING
CYLINDER
VALVE HOUSIN6 ASSEMBLY
PUUPOUTLET
DRAIN PORT
I PHNO309-755-4553 O-RING CHART HCDUKEampSONINC I
1 I84Z08 SOFT SERVE DISPENSING HEADS I
o PART NO 1605620
PAR~159--1b
PART NO PART NO 1605841 59295()
I PHNO 309-755-4553 O-R ING CHART HCDUKEampSONINC I
- Cover
- Table of Contents
- Safety
- Uncrating amp Inspection13
- Explanation of Electrical Controls
- Operation of Machine
- General Information
- Maintenance amp Adjustment
- Parts Breakdowns
- Trouble-Shooting Charts
- O-ring Charts
-
END PLAY FOR BEATER DRIVE COUPLING
It is very important that the drive coupling located on the gear reducer be set properly Referring to the Drive Coupling Illustration the following procedure should be followed in setting the end play
WARNING
MAKE SURE THAT THE SELECTOR SWITCH IS IN THE OFF POSITION AND THAT THE ELECTRICAL POWER TO THE MACHINE IS DISCONNECTED SO THAT THE UNIT WILL NOT OPERATE
------
DRIVE COUPLING ILLUSTRATION
REF DESCRIPTION REF DESCRIPTION 1 Gear Reducer 6 Reducer Mounting Plate 2 Beater Shaft 7 Set Screws 3 Shaft Seal 8 Bolt Gear Reducer 4 Drive Coupling 9 Bolt Reducer Mounting Plate 5 Spacer 10 Key
11 Output Shaft
Improper drive coupling spacing will damage the beater shaft dispensing head and drive coupling When checking end play settings or replacing a coupling proceed as follows
REMOVING COUPLING
WARNING
DISCONNECT MAIN POWER SUPPLY
Mig by H C DUKE amp SON INC bull 2116 Eighth Allenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SO SERVE bull SHAKE bull SLUSH
21
22
(1) Remove Beater Shaft (Ref 2)
(2) Remove both drive belts (not shown)
(3) Remove gear reducer bolts (Ref 8) Six (6) bolts are located around the face of the reducer
NOTE Remove the top bolt last holding the bottom of the reducer as you do so
(4) Remove the gear reducer (Ref 1) and place-on table or bench
(5) Replace two (2) bolts (Ref 8) one (1) at the top and one (1) at the bottom so that the reducer cover will not come off while the coupling is changed
(6) Loosen the four (4) set screws (Ref 7) and remove the drive coupling (Ref 4) Should the coupling be stuck tight to the ouput shaft lightly tap the coupling from the back with a hammer and bar Sometimes due to age this coupling will stick so tight it will have to be removed with a pulley removing tool or a wheel puller
(7) Remove the key (Ref 10)
INSTALLING THE NEW COUPLING
(1) Clean gear reducer output shaft (Ref 11) with fine emery cloth and slide the new drive coupling on the reducer shaft The coupling should slide on the shaft all the way without the key If the coupling doesnt slide completely on check both coupling and reducer shaft for burrs When a smooth sliding fit is achieved remove coupling and proceed with final assembly
(2) Place key (Ref 10) in keyway slot on the reducer output shaft Keep the key flush with the front end of the output shaft (Ref 11)
(3) Slide the coupling (Ref 4) on the output shaft until it bottoms out on the shaft Leave the four (4) set screws loose as the coupling will have to be adjusted
(4) Remove the two (2) bolts added in preceding Step 5
(5) Place one (1) gear reducer bolt (Ref 8) in the top hole of the cylinder mounting plate
(6) Insert gear reducer into cylinder mounting plate and start top bolt (Ref 8) Do nol tighten completely Now insert the other bolts one at a time When all bolts are in tighten each boll
NOTE Due to very close tolerance between the gear reducer and cylinder mounting plate no alignment is required when Installing the reducer When the reducer bolts are tightened the reducer will seH-align with the cylinder
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
(7) Insert the beater shaft (Ref 2) with the shaft seal and blades into the cylinder and engage beater shaft in the drive coupling Place bushing on front of beater shaft
(8) Tape a dime (10 cents) to the back of the dispensing head in the very center at the point where the beater shaft touches the dispensing head The dime is used to acquire the proper end play setting on the drive coupling which is approximately 332
(9) Place the dispensing head into the cylinder and tighten with the hand knobs Important make sure hand knobs are tight and head is against the end of the cylinder tube
(10) Slide the drive coupling (Ref 4) forward until it is tight against the beater shaft and lock into place the four (4) set screws (Ref n
(11) Remove the dime from the back of the dispensing head
(12) Replace the drive belts
(13) Turn on electrical power
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
23
PANEL BREAKDOWN - 917CAB
~--~
3
REF PART No 1A 114544 1B 112991 2A 136075 2B 136102
3A 137027 3A 137028
3A 136105 3B 136103
3B 134817 4 134818
4 136101 5A 114780
5A 113570 5B 112967
6 112960 7 133291
24 A 917CAB only
I
dJ
DESCRIPTION Frame ssmiddoty Frame ASsmiddoty Lower Side Panel Lower Side Panel LH Side Panel RH Side Panel Upper Side Panel Upper Side Panel Upper Side Panel Rear Panel Rear Panel Top Cover ASsmiddoty Top Cover ASsmiddoty Top Cover ASsmiddoty Filler Panel ASsmiddoty Top Filler Strip
B bull 44 CAB only
~
[At 16 lt0
REF 8
9 10 11 12 12A 13
14 15 16 16A
Air Cooled only
PART No DESCRIPTION 132687 Dispense Panel 134247-01 Dispense Panel Cab-W
Drip Tray (See Pg 35) 114260-01 Door Assmiddoty wIHinges 132444-01 Left Hand Filler Strip 162045 Upper Hinge 162052 Spring LH 162046 Lower Hinge 160026 Screw 160020 Bolt 160139 Washer 110205 Syrup Jar Enclosure 160563-01 Door Gasket 01-Groove) 159174 Drip Tray Button 160293 Clip for Button
Water Cooled only
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
~~
1 ~~o ~o
)
cp I
L~
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 114538 Frame Assy 10 162045 bull Upper Hinge 2 136289 Side Panel LH lOA 162052 Spring LH 3 136313 Rear Panel 11 162046 Lower Hinge 4 114006 Top Panel AC llA 160026 Screw 4A 114428 Top Panel WC l1B 160020 Bolt 4B 114157 Top Panel AC Remote l1C 160139 Washer 5 113983 Front Panel Assy 927CAB 12 136216 Side Panel RH 5A 113985 Front Panel Assy 957cAB 13 160563 Door Gasket (V-Groove) 6 130021 Rear Corner Channel RH 14 159174 Drip Tray Button 6A 135254 Rear Corner Channel LH 14A 160293 Clip for Button 7 137228 Dispensing Panel 162108 Stop Pin (Screw In) 8 Drip Tray (See Pg 35) 136199 Door Pull 9 114260 Door Assy wHinges
25
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
SOFT SERVE CAB ELECTRICAL BOX
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 Contactor (Order By Freezer 5 150463 Selector Switch
Serial Number) 6 159235 Toggle Switch (Pump) 2 Overload (Order By Freezer 7 150456 Spigot Switch
Serial Number) 7A 136124 Button - Spigot Switch 2A Heater Coil (Order By Freezer 7B 162302 Spring - Spigot Switch
Serial Number) 8 150553 Pilot Light - Amber 3 Starter (Order By Freezer 9 150552 Pilot Light - Red
Serial Number) 10 161026 Thermometer (Not Shown) 4 150208 Timer
26
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Pointed u
- - --- -
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prifllcl If USA
In-
ca ~ Q ltC wr w I
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2B
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SOFT-SERVE - SINGLE HEAD CAB
REF PART No 1 151351
2 3 4 5 6 151044
151052 7
8 155039 9 155400 10 155117
11 151084
12A 159021 13 155401 13A 155423 14 155403 15 155422
16 154976 16 154975 17 159203 18 155051 19 112901
155410 20 155044
151348
DESCRIPTION Capacitor Relay Assembly (single phase)
150247 Start Capacitor
150249 Run Capacitor 150245 Relay Motor Capacitors (order by freezer serial no) Gear Reducer (see gear reducer breakdown page 36) Driven Pulley (order by freezer serial no) Belt (order by freezer serial no) Motor 1-phase 230 volt Motor 3-phase 208230 volt Driver Pulley (order by freezer serial no)
Water Condenser Automatic Expansion Valve (Cylinder) Air Condenser
Condenser Fan Motor
Condenser Fan Blade High Pressure Cut-Out shyHigh Pressure Cut-Out shyLow Pressure Cut-Out Solenoid Valve
Compressor 230160
AC WC
Compressor 208-230360 Sight Glass Drier (38) Receiver Tank Assembly Water Valve (not shown) Service Valve Compressor Mounting Kit
Note I) lt0 For All 50-Cycle Freezers Order By Freezer Serial Number
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Printad I usA
30
c W -I o o o a w ~ 3
III
~ W -I III J o C
w gta w en u o en
SOFT-SERVE - DOUBLE CAB - WATER COOLED REF PART No DESCRIPTION 1 155026 Water Condenser (B-side) 1 A 155039 Water Condenser (A-side) 2 159203 Sight Glass 3 155051 Drier (38) 4 155400 Automatic Expansion Valve (Cylinder) 5 Gear Reducer (see gear reducer breakdown page 36) 6 155410 Water Valve 7 155423 High Pressure Cut-Out 8 155403 Low Pressure Cut-Out 9 154976 Compressor 230160
151351 Capacitor Relay Assembly (Single Phase) 150247 Start Capacitor 150249 Run Capacitor 150245 Relay
9A 154975 Compressor 208-230360~-11 NOT USED ON THIS MODEL 12 155442 Low Temp Control 13 Driven Pulley (order by freezer serial no) 14 Belt (order by freezer serial no) 15 Driver Pulley (order by freezer serial no) 16 155422 Solenoid Valve 17 151044 Motor 1 phase 230 volt 17A 151052 Motor 3 phase 208230 volt 18 Motor Capacitors single phase only (order by freezer serial no)
Note For All 50-Cycle Freezers Order By Freezer Serial Number
cgt
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH _InU5A
32
c W J o o o -a oCt
aI oCt o W I m ) o c w gta w Ch t--LL o Ch
SOFTmiddotSERVE bull DOUBLE CAB - AIR COOLED REF PART No 1 155120 2 159020 3 151080 4 155400 5 6 159203 7 155051 8 112901 9 151044 9A 151052 10 11 12 14 154976
14A 154975 15 155401 16 155403 17 155443 18 155442 19
21 155422
DESCRIPTION Condenser Fan Blade Fan Motor Automatic Expansion Valve (Cylinder) Reducer (see gear reducer breakdown page 36) Sight Glass Drier Receiver Assembly Motor 1-Phase 230 Volt Motor 3-Phase 208230 Volt Driven Pulley (order by freezer serial no) Belt (ordr by freezer serial no) Driver Pulley (order by freezer serial no) Compressor 230160 151351 Capacitor Relay Assembly (Single Phase)
150247 Start Capacitor 150249 Run Capacitor 150245 Relay
Compressor 208-230360 High Pressure Cut-Out Low Pressure Cut-Out Cabinet Thermostat Low Temp Thermostat NOT USED ON THIS MODEL Motor Capacitors single phase only (order by freezer serial no) Solenoid Valve
Note For All 50-Cycle Freezers Order By Freezer Serial Number
Vl Vl
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prinled In USA
CAB PARTS BREAKDOWN
REF PART No DESCRIPTION PART No DESCRIPTION 1 155109 Cabinet Coil 136297 Condensate Pan (Not Shown) 1A 155113 Motor Cabinet Fan 196092 Mix Tank 7-12 Gal 1B 155099 Fan Blade Cabinet Coil 113997 Front Lid Mix Container
7-12 Gal 136248-01 Rear Lid Mix Cont 7-12 Gal
10 155416 CAB Automatic Expansion 130092 Mix Tube Valve 196028 Mix Tank 10 Gal
137119 Probe 11 -1 4 shy1E 155114 Fan Grill amp Bracket 7-12 Gal Container 1F 155116 Knob 137119-01 Probe 10-34 shy2 113898 DPR Pump Less Motor 7-12 amp 10
(see pump breakdown Gal Container pg 38) 137119-02 Probe 10-14 shy
3 196061 Mix Hose (sold by the foot) 10 Gal Container 4 150416 Door Switch 137120 Base Probe Mtg 4A 114630 Actuator Door Switch 160500 O-Ring
(Not Shown) 114572 Hose Clamp (Not Shown) 5 150527 Retractable Cordset 34
MIg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prlmd UsA
MERCHANDISING ASSY
PART No 115108 115107
PART No
196107-01 196108-01 114610 114608 115132 199030
PART No 162105 162106 112978 158004 158021 158022 158078 158000 158056 158000A 158014 158014A 161000 158049
DESCRIPTION 2S Merchandiser-927-957-978CAB 24 Merchandiser-917CAB
DRIP TRAY
DESCRIPTION
24 Drip Tray-917CAB 26- Drip Tray-927-957-978CAB 24 Tray Insert-917CAD 26 Tray Insert-978CAB-927CAB 26 Tray Insert-957CAB Rubber Bumper (only)
DESCRIPTION Caster With Brake Caster Without Brake Leg-6 4 Cylinder Brush Mix Hose Brush 58 Dia w6 Ft Handle 14 Pump Brush Drain Tube Brush Petrol Gel (12 tube carton) Petrol Gel (6 tube carton) Pe1rol Gel (per tube) Stera Sheen (per case) Stera Sheen (per jar) Pocket Thermometer 1 Dial Z32 Overrun Scale
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SNAKE bull SLUSH
35
36
GEAR REDUCERS Order By Freezer Serial Number
Model 3 CB
153345 5-1 Ratio B side 153004 High Speed Cup ~ (2 ea required) 153005 High Speed Bearing (2 ea required) 153008 Slow Speed Cup (2 ea required) 153009 Slow Speed Bearing (2 ea required) 153052 Slow Speed Seal (2 ea required) 153054 High Speed Seal (2 ea required) 153313 Brass Gear 5-1 Ratio 153336 Slow Speed Shaft Only 5-1 Ratio 153316 Worm Gear On Shaft 5-1 Ratio 114873 Gasket Set
Model 4 CB
153342 10-1 Ratio A side 153343 10-1 Ratio B side
153014 High Speed Cup (2 ea required) 153015 High Speed Bearing (2 ea required) 153011 Slow Speed Cup (2 ea required) 153012 Slow Speed Bearing (2 ea required) 153051 Slow Speed Seal (2 ea required) 153053 High Speed Seal (2 ea required) 153349 Brass Gear 10-1 Ratio 153339 Slow Speed Shaft OnIy 10-1 Ratio 153347 Worm Gear on Shaft 10-1 Ratio 114874 Gasket Set
Winlwin Model
153341 Wintwin 10-1 Ratio A and B Side
153014 High Speed Cup (2 ea required) 153015 High Speed Bearing (2 ea required) 153011 Slow Speed Cup (2 ea required) 153012 Slow Speed Bearing (2 ea required) 153051 Slow Speed Seal (2 ea required) 153053 High Speed Seal (2 ea required) 153349 Brass Gear 153350 Slow Speed Shaft Only 153348 Worm Gear on Shaft 11 4874 Gasket Set
158055 Gear Reducer OU 51001
Drive Coupling (Order By Machine Serial Number)
Mfg by H C DUKE amp SON INC bull 2115 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
917 amp 927 Beater Shaft Assembly
957 Beater Shaft
Item Part No Description
1 196079 Bushing-Cylinder 2 114752 Beater-Assy Long (Shaft) 3 137334 Blade-Scraper Soft Serve 4- 160500 O-Ring (Shaft Seal) 5- 133098 Bushing (Washer-Shaft Seal) 6 160557 Seal-Beater Shaft
-Items 4-6 111875 Seal-Assy Shaft (Complete)
31
1 113438 2 196079 3 137334 4- 160500 5- 133098 6 160557
-Items 4-6 111875
Shaft-Assy Beater Bushing-Cylinder Blade-Scraper O-ring (Shaft Seal) Washer-Shaft Seal (Bushing) Seal-Beater Shaft (Cup)
Seal-Assy Shaft (Complete)
ao
DISPENSING HEAD
16
r
Q
--~
-----_
REF PART No DESCRIPTION Tl3o 6 119928- Door Assembly shy Complete (Items 7-14) 11637- 7 196688 Door shy Less Parts
a 134921 Spigot shy Less Extension 9 134922 Handle Extension shy Spigot
10 162624 Handle 11 159295 OmiddotRings shy Spigot (Lots of 5)12 159309 O-ring shy 4 - Door 13 196066 Air Relief Screw 14 160621 a-Ring shy Air Relief Screw (Lots of 5)15 136126 Rod - Spigot Switch shy 917 8 927 16 136798 HMdKnob
38
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illmols 61244
SUPERIOR QUAUlY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
Duke Soft Serve Freezer Models 917R and 927RN
5 -______
7
6
UPDATEDDispense Head Assembly
Item Part No
115130 1 116321 2 160583 3 115129 4 160562 5 136126 6 134921 SA 162624 68 134922 7 159295 8 160584 9 162625 9A 114341 10 196185 10A 137870 108 136713
116410
Includes items 1-4 6-8
Description
Head-Assy Dispense (Complete) Head-Assy wActualor O-ring (Head-4-inch) Bleeder-Assy (Air Relief Plug) O-ring (Bleeder-Assy) Rod-Spigot Switch Spigot-long Single Handle-Black Tapered Handle-Spigot (Stainless Steel) O-ring (Spigot) O-ring (Extension) Knob-Hand Stud-Assy Cylinder 1-15116 inch (not shown) Nouie-Slar Adapter (accessory) Adapter-Yogurt Nozzle (not shown) Extension-Spigot (accessory-cake not shown) Kit-Dispense Head Switch
( Use only original or authorized replacement parts with this freezer )
DISPENSING HEAD
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH uu
REF PART No 114765
1 196082 2 114313 3 137018 5 136618 6 162626 8 134499 9 162625
10 115129 11 136794 12 159309 13 159295 14 160562 15 136713 16 160584
DESCRIPTION Door Assy-Complete Door-Less Parts Spigot Assy-Side Spigot Only-Center Extension Only-Center Handle Stud-Handle Stop Hand Knob Air Re1ief-Assy Rod-Spigot Switch O-Ring-4-Door O-Ring-Spigot O-Ring-Air Relief Extension-Spigot a-Ring
39
40
PUMP MOTOR AND HOUSING ASSEMBLY SAFETY SWITCH ASSEMBLY
PRESSURE SWITCH ASSEMBLY ijreg~
I
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH IIIUaA
CAB DPR PUMP BREAKDOWN
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 196091 Pump Base 46 114009 Pump Cover 2 136088 Pump Support 47 113464 Base Bracket Assembly 3 150784 Strain Relief Bushing 48 135725 Stud 1-78 4 Power Cord 49 160131 516 Flatwasher 5 160075 10-24 x 38 Screw 50 160293 Speed Clip 6 135416 Cover Electric Box 51 135724 Button 7 160141 14 Lockwasher 52 160140 10 Lockwasher 8 160491 14-20 x 34 Socket Screw 53 135726 Stud 3 9 113497 Motor Cord 18-3 SJT 54 160109 10-24 Hex Nut 10 151127 Motor 40 RPM Soft Serve 55 135729 Switch Actuator 11 160023 14-20 x 1 Screw 56 135731 Stop - Max Pressure 12 153317 Half Moon Key 57 162315 Spring - Soft Serve 13 112925 Cam Drive Plate Assembly 58 160138 10 Flat Washer 14 160495 14-20 x 14 Set Screw 59 160304 10-24 Stop Nut 15 160369 Pin 60 150456 Pressure Switch 16 134614 Swing Clamp 61 135744 Insulator - Fiber 17 134521 Adjusting Clamp 62 160381 6-32 x 1 Socket Screw 18 160488 Thumb Screw 63 160393 6 Flatwasher 19 134604 Bearing Bushing 64 160146 6 Lockwasher 20 134602 Connecting Rod 65 160309 6-32 Hex Nut 21 134601 Piston 66 160006 6-32 x 14 Screw 22 159295 O-Ring 67 160001 8-32 x 38 Screw 23 134603 Wrist Pin 68 160470 8 Lockwasher 24 136089 Cylinder 69 150481 Circuit Breaker 25 199011 Washer Valve 70 135727 Switch Bracket 26 159282 O-Ring 71 136311 Spacer - Cover Switch 27 113839 Pump Valve Housing 72 160028 Truss Head Screw
Assembly (Metal) 14-20 x 34 SST 28 160582 O-Ring 73 160141 Lockwasher 14 29 199020 Sleeve Rubber 74 160104 Hex Nut 14-20 30 135793 Retainer Clip 75 136312 Button Guard 31 135791 Adapter Hose Outlet 76 160020 Hex Hd Cap Screw 32 160581 O-Ring 14-20 x 1 SST 33 135790 Piston 77 113869 Switch Bracket 34 162308 Spring Soft Serve 78 136110 Button Cover Switch 35 135792 Drain Port 79 162314 Spring 36 160611 O-Ring 80 150456 Switch Pump Safety 37 135896 Hose 24 81 135004 Switch Cover 38 160738 Hose Clamp 82 160296 Screw RH 39 136288 Keeper 6-32 x 1-14 40 160554 O-Ring 83 160146 Lockwasher 6 41 160368 Wing Nut Int Tooth 42 130054 Diaphragm Housing 84 160393 Flatwasher 6 43 199019 Diaphragm 85 160309 Hex Nut 6-32 44 196074 Air Tube-Curved 86 114572 Hose Clamp 45 163433 Air Meter - 20 87 160048 14-20 x 12 TRHM
(other sizes available) 88 160308 6-32 x 516 RDHM 89 114581 Circuit Breaker Bracket
Not Shown 90 163109 Stop Pivot 112791 DPR Pressure Gauge
41
Mfg by H C DUKE amp SON INC 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
42
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Unit does not operate 1 Fuse blown at main disconshy 1 Check fuse size check for low nect voltage if not within 10 of
nameplate rating install transformer or call power company
2 Beater motor out on overload 2 Press starter reset button and check for low voltage Check producllemperalure and overrun
3 Disconnected or broken wife 3 Check wiring and wire connecshyin electrical circuit lions repair or replace lead
wires as necessary
4 Faulty selector switch 4 Replace selector switch
5 Out on high pressure 5 Check for low waler supply or dirty air conden ser
6 Out on low pressure 6 Check limit control and freon charge
Compressor does not operate f Troubte in compressor con- I Refer to Trouble-Shootingshyor operates improperly densing circuit Compressor I Condensing
Circuit
2 Faulty capacitor assembly 2 Replace capaCitor assembly (Single phase only)
3 Faulty contactor 3 Replace contaclOr or pOints
Compressor operates but 1 Loose con neclion at motor 1 Tighten connection beater motor does not starter coil (electrical box)
2 Open starter coil 2 Replace coil
3 Faulty capacitor assembly 3 Replace capaCitor assembly (Single phase only)
Dispensed product too hard 1 Cylinder themostat erratic 1 Adjust thermo slat or replace or set too low
2 Faulty time delay relay 2 Replace time delay relay
3 Solenoid valve leaking 3 Replace solenoid valve
4 Low suction pressure 4 See chart on page 15 for adshyjustments
Leaking of mix from rear housshy 1 Damaged bealer shalt seal 1 Replace shaft seal or O-ring ing discharge tube to drip tray inside seal assy
Mig by H C DUKE amp SON INC bull 2116 Eighlh Avenue Easl Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Mix leaking at dispensing head 1 Faulty 4 O-Ring
2 Head not properly installed
1 Replace 4 O-Ring
2 Install head properly
Mix sours in cabinet 1 Cabinet thermostat setting too high
2 Cabinet thermostat detective
3 Cabinet solenoid valve deshyfective
4 Cabinet switch defective
5 Beater motor out on overshyload (cab side)
1 Adjust thermostat
2 Replace thermostat
3 Replace coil or solenoid
4 Replace cabinet switch
S Reset overload for beater motor See pg 42 unit does not operate
Cabinet too COld
Machine runs continually and Product continues to get colder
Compressor operates only when dispensing
Unit runs conMuously Product does nol reach 180 F temperature
6 Door sWitch defectIVe
1 Cabinet thermostat setting too low
2 Defective thermostat
3 Cabinet solenoid stuck open
4 Cabinet expansion valve set too low
1 Plunger switch out of adjustshyment
2 Su ction pressure too low
3 Defective plunger switch
4 Plunger switch rod engaged
5 Faulty time delay relay
6 Starter or relay contacts stuck
7 Faulty thermostat or bulb not deep enough in well
6 Replace door SWitch
1 Adjust thermostat
2 Replace thermostat
3 Replace solenoid
4 Adjust cabinet expansion valve (See pg 15)
1 Adjust plunger switch
2 Adjust expansion valve and check freon charge
3 Replace plunger switch
4 Close plunger completely
5 Replace time delay relay
I 6 Check contacts i
7 Check bulb location or replace thermostat
1 Cylinder themostat setting 1 Adjust thermostat or replace too high or thermostat deshyfective
1 Trouble in compressor I condensing system
2 ExpanSion valve setiing is too high
3 Low on refrigeranl
1 See Trouble-Shooling-CompressorI Condensing circuit
2 Adjust expansion valve
3 Check and repair leak and recharge
1
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE SLUSHbull
43
44
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Dispensed product too soft (Product temperature above 21 0 F)
1 Automatic expansion yalve incorrectly set or erratic in operation
-2 Leak in refrigeration system
resulting in little or no refrigeration
1 Adjust or replace expanSion valve
2 Pump down system or remove refrigerant charge repair leak evacuate and recharge
3 Excessive oil in system 3 Drain compressor to proper oil leyel pump down and flush system
4 Thermostat set too high taulty
or 4 Adiust thermostat or replace
Product dispenses slOWly out dispensing head
1 Reverse rotation 1 Change rotation to clockshywise from front of freezer
2 Dispensing speed adjustshyment boll too far down
2 Adjust bolt upward
3 Pum p problem 3 See pump Trouble-Shooting chart
4 Product too cold 4 See dispensed product too hard pg42
TROUBLE-SHOOTING CHART COMPRESSORICONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor will not start -hums intermittently (cycling on oyerload)
1 Improperly wired
2 Low line Yoltage
3 Open starting capacitor (single phase only)
4 High discharge pressure
1 Check wiring against diagram
2 Ask power company to increase YOltage to not less than 10 below nameplate rating or install transformer Check for inadequate wire size
3 Replace starting capacitor
4 CheCK water regulating valve setting Check water or air condenser and clean if necessary Make sure disshycharge shut-oft valve is open
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor starts but remains 1 Low line voltage 1 Ask power company to in start windings increase voltage to not less (Single phase only) than 10 below nameplate
rating or install transrormer
2 Improperly wired 2 Check wiring against drawing Check wire size
3 Running capacitor shorted 3 Check by disconnecting running capacitor
4 Starting capacitor weak 4 Check capacitor replace
5 High disCharge pressure 5 Check water regulating valve check water or air condenser and clean il necessary Check discharge shut-off valve
Starter burned out 1 Low line voltage 1 Ask power company to inshycrease voltage to not less than 10 below nameplate rating or install transformer
2 Excessive line voltage 2 Ask power company to reduce voltage to maximum of 10 over nameplate rating
Starting capacitors burn out 1 Voltage 100 low 1 Ask power company to (Single phase only) increase voltage to not less
than 10 below nameplate rating or install translonmer
2 Improper capacitor 2 Replace capacitor with properly rated capacitor as listed in manual
Running capacitors burn out 1 Excessive line voltage 1 Ask power company to reshy(Single phase only) duce line voltage to not more
than 10 above rating 01 motor
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
45
46
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Unit operates long or continuously
1 Shortage of gas
2 Dirty condenser
3 Moisture in system
4 Compressor failing
1 Repair leak and recharge
2 Clean condenser
3 Evacuate and recharge system
4 Check compressor lor proper pressures If inadequate replace compressor
Head pressure too high 1 Refrigerant overcharge
2 Air in system
3 Dirty condenser (air cooled)
4 Unit location too warm (air cooled)
5 Restricted water cooled condenser
6 Water turned off or defective
1 Purge system
2 Purge system evacuate and recharge
3 Clean condenser
4 Relocate unIt away from restriction Place nothing against back or on top of unit
5 Clean or replace condenser
6 Turn on water Or replace water regulating valve regulating valve
Head pressure too low 1 Shortage 01 refrigerant 1 Repair leak and recharge
2 Water regulating valve open 2 Adjust regulating valve too wide
Water 1I0wing through water 1 Water regulating valve 1 Replace water regulating valve waste line when unit is not in operation
defective
Noisy compressor 1 Tubing raUle 1 Bend tubes away from contact
NOTE Refer to warranty card prior to compressor replacement
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING DPR PUMP
TROUBLE PROBABLE CAUSE REMEDY
Pump will not run 1 Pump cover removed 1 Install pump cover
2 Pressure switch actuating 2 Free bulton-check spring and
bulton stuck open (in) pressure switch alignment
3 Pressure switch burned out 3 Replace pressure switch
4 Starting switch in motor bad 4 Install new starting switch
5 Motor burned out 5 Replace motor
6 Circuit breaker kicked out 6 Allow to re- set Replace it or faulty circuit breaker will not
automatically re-set
Motor runs-cam drive plate 1 Loose cam drive plate 1 Tighten set screw in cam will not turn drive plate Check woodruff key
2 Gear stripped 2 Replace gear
Pump will not shut off Mix 1 Pressure swilch actuating 1 Free button-check pressure shoots out pressure relief bulton stuck closed (out) switch alignment
2 Pressure switch stuck in 2 Replace pressure switch closed position
3 Pressure switch assy out 3 Using pressure gauge adjust of adjustment pressure
4 Dirty or plugged diaphragm 4 Disassemble and clean housing (Ref 42) housing
5 Defective O-Ring on 5 Replace O-Ring pressure relief piston
Pump will not prime 1 Insufficient supply of mix 1 Replenish mix supply
2 Piston O-ring defective-no 2 Replace piston O-Ring and suction lubricate
3 Washer valve not sealing 3 Replace washer valve DO NOT LUBRICATE
Pump primes No pressure in 1 Sleeve (Rei 29) not sealing 1 Replace sleeve DO NOT cylinder properly LUBRICATE
2 Loose hose connection on 2 Install or tighten hose clamp pump valve housing (Ref 27)
Mix shoots out Of air intake line 1 Washer valve (Ref 25) 1 Replace washer valve-DO not sealing properly NOT LUBRICATE
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOfT SERVE bull SHAKE bull SLUSH
47
48
TROUBLE-SHOOTING DPR PUMP
Too much air overrun too high-popping problems
Product dispenses slowly out of disPenSing head
1 Air meter too large (Ref 45)
2 Air leak befween mix conshytainer and mix inlet
3 Air line hose crackedshysucking air (Ref 44)
4 Pump pressure too lowshycylinder not full
1 Pump pressure too low
2 PrOduct too cold
3 Low overrun
Diaphragm housing leaking mix 1 Diaphragm housing loose
2 Diaphragm defective
Piston drive assy noisy 1 Bushing bearing worn
2 Defective gear in gear motor
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SIfAKE bull SLUSH
REMEDY
1 Replace washer valve-DO NOT LUBRICATE
2 Install clamp on hose
1 Replace O-Ring and LUBRIshyCATE
1 Clean or replace air meter
2 Replace tube
1 Install smaller air meier
2 Repair as needed
3 Replace air line hose
4 Using pressure gauge adjust pressure switch
1 Using pressure gauge adjust pump pressure
2 Check product temperatureshyshould be about 18 F
3 Check meter-if plugged-clean
1 Tighten wing nuls (Ref 41)
2 Replace diaphragm (Ref 43)
1 Replace bushing bearing (Ref 19)
2 Replace gear
TROUBLE
Mix inlet hose loses prime
Mix on top of piston
PROBABLE CAUSE
1 Washer valve (Ref 25) not sealing properly
2 Mix inlet hose loose
1 Piston O-Ring leaking (Ref 22)
No Air (Overrun) 11 Ai r meter plugged (Ref I 45)
2 Curved air tube pinched
--
DPR PUMP aI
PART NO 199019(i) PART NO 199020 reg DIAPHRAGM RUBBER SLEEVE
PART NO159295 PART NO 159282reg O-RING O-RING0
PART NO 160581reg O-RING
o PART NO PART NO
PART NO199011() 160611(8) 160582 WASHER VALVE O-RING O-RING
PISTON
cJ
DIAPHRAGM HOUSING
CYLINDER
VALVE HOUSIN6 ASSEMBLY
PUUPOUTLET
DRAIN PORT
I PHNO309-755-4553 O-RING CHART HCDUKEampSONINC I
1 I84Z08 SOFT SERVE DISPENSING HEADS I
o PART NO 1605620
PAR~159--1b
PART NO PART NO 1605841 59295()
I PHNO 309-755-4553 O-R ING CHART HCDUKEampSONINC I
- Cover
- Table of Contents
- Safety
- Uncrating amp Inspection13
- Explanation of Electrical Controls
- Operation of Machine
- General Information
- Maintenance amp Adjustment
- Parts Breakdowns
- Trouble-Shooting Charts
- O-ring Charts
-
22
(1) Remove Beater Shaft (Ref 2)
(2) Remove both drive belts (not shown)
(3) Remove gear reducer bolts (Ref 8) Six (6) bolts are located around the face of the reducer
NOTE Remove the top bolt last holding the bottom of the reducer as you do so
(4) Remove the gear reducer (Ref 1) and place-on table or bench
(5) Replace two (2) bolts (Ref 8) one (1) at the top and one (1) at the bottom so that the reducer cover will not come off while the coupling is changed
(6) Loosen the four (4) set screws (Ref 7) and remove the drive coupling (Ref 4) Should the coupling be stuck tight to the ouput shaft lightly tap the coupling from the back with a hammer and bar Sometimes due to age this coupling will stick so tight it will have to be removed with a pulley removing tool or a wheel puller
(7) Remove the key (Ref 10)
INSTALLING THE NEW COUPLING
(1) Clean gear reducer output shaft (Ref 11) with fine emery cloth and slide the new drive coupling on the reducer shaft The coupling should slide on the shaft all the way without the key If the coupling doesnt slide completely on check both coupling and reducer shaft for burrs When a smooth sliding fit is achieved remove coupling and proceed with final assembly
(2) Place key (Ref 10) in keyway slot on the reducer output shaft Keep the key flush with the front end of the output shaft (Ref 11)
(3) Slide the coupling (Ref 4) on the output shaft until it bottoms out on the shaft Leave the four (4) set screws loose as the coupling will have to be adjusted
(4) Remove the two (2) bolts added in preceding Step 5
(5) Place one (1) gear reducer bolt (Ref 8) in the top hole of the cylinder mounting plate
(6) Insert gear reducer into cylinder mounting plate and start top bolt (Ref 8) Do nol tighten completely Now insert the other bolts one at a time When all bolts are in tighten each boll
NOTE Due to very close tolerance between the gear reducer and cylinder mounting plate no alignment is required when Installing the reducer When the reducer bolts are tightened the reducer will seH-align with the cylinder
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
(7) Insert the beater shaft (Ref 2) with the shaft seal and blades into the cylinder and engage beater shaft in the drive coupling Place bushing on front of beater shaft
(8) Tape a dime (10 cents) to the back of the dispensing head in the very center at the point where the beater shaft touches the dispensing head The dime is used to acquire the proper end play setting on the drive coupling which is approximately 332
(9) Place the dispensing head into the cylinder and tighten with the hand knobs Important make sure hand knobs are tight and head is against the end of the cylinder tube
(10) Slide the drive coupling (Ref 4) forward until it is tight against the beater shaft and lock into place the four (4) set screws (Ref n
(11) Remove the dime from the back of the dispensing head
(12) Replace the drive belts
(13) Turn on electrical power
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
23
PANEL BREAKDOWN - 917CAB
~--~
3
REF PART No 1A 114544 1B 112991 2A 136075 2B 136102
3A 137027 3A 137028
3A 136105 3B 136103
3B 134817 4 134818
4 136101 5A 114780
5A 113570 5B 112967
6 112960 7 133291
24 A 917CAB only
I
dJ
DESCRIPTION Frame ssmiddoty Frame ASsmiddoty Lower Side Panel Lower Side Panel LH Side Panel RH Side Panel Upper Side Panel Upper Side Panel Upper Side Panel Rear Panel Rear Panel Top Cover ASsmiddoty Top Cover ASsmiddoty Top Cover ASsmiddoty Filler Panel ASsmiddoty Top Filler Strip
B bull 44 CAB only
~
[At 16 lt0
REF 8
9 10 11 12 12A 13
14 15 16 16A
Air Cooled only
PART No DESCRIPTION 132687 Dispense Panel 134247-01 Dispense Panel Cab-W
Drip Tray (See Pg 35) 114260-01 Door Assmiddoty wIHinges 132444-01 Left Hand Filler Strip 162045 Upper Hinge 162052 Spring LH 162046 Lower Hinge 160026 Screw 160020 Bolt 160139 Washer 110205 Syrup Jar Enclosure 160563-01 Door Gasket 01-Groove) 159174 Drip Tray Button 160293 Clip for Button
Water Cooled only
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
~~
1 ~~o ~o
)
cp I
L~
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 114538 Frame Assy 10 162045 bull Upper Hinge 2 136289 Side Panel LH lOA 162052 Spring LH 3 136313 Rear Panel 11 162046 Lower Hinge 4 114006 Top Panel AC llA 160026 Screw 4A 114428 Top Panel WC l1B 160020 Bolt 4B 114157 Top Panel AC Remote l1C 160139 Washer 5 113983 Front Panel Assy 927CAB 12 136216 Side Panel RH 5A 113985 Front Panel Assy 957cAB 13 160563 Door Gasket (V-Groove) 6 130021 Rear Corner Channel RH 14 159174 Drip Tray Button 6A 135254 Rear Corner Channel LH 14A 160293 Clip for Button 7 137228 Dispensing Panel 162108 Stop Pin (Screw In) 8 Drip Tray (See Pg 35) 136199 Door Pull 9 114260 Door Assy wHinges
25
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
SOFT SERVE CAB ELECTRICAL BOX
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 Contactor (Order By Freezer 5 150463 Selector Switch
Serial Number) 6 159235 Toggle Switch (Pump) 2 Overload (Order By Freezer 7 150456 Spigot Switch
Serial Number) 7A 136124 Button - Spigot Switch 2A Heater Coil (Order By Freezer 7B 162302 Spring - Spigot Switch
Serial Number) 8 150553 Pilot Light - Amber 3 Starter (Order By Freezer 9 150552 Pilot Light - Red
Serial Number) 10 161026 Thermometer (Not Shown) 4 150208 Timer
26
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Pointed u
- - --- -
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prifllcl If USA
In-
ca ~ Q ltC wr w I
Zshy
2B
()
w gta w ()
tshy~ o ()
SOFT-SERVE - SINGLE HEAD CAB
REF PART No 1 151351
2 3 4 5 6 151044
151052 7
8 155039 9 155400 10 155117
11 151084
12A 159021 13 155401 13A 155423 14 155403 15 155422
16 154976 16 154975 17 159203 18 155051 19 112901
155410 20 155044
151348
DESCRIPTION Capacitor Relay Assembly (single phase)
150247 Start Capacitor
150249 Run Capacitor 150245 Relay Motor Capacitors (order by freezer serial no) Gear Reducer (see gear reducer breakdown page 36) Driven Pulley (order by freezer serial no) Belt (order by freezer serial no) Motor 1-phase 230 volt Motor 3-phase 208230 volt Driver Pulley (order by freezer serial no)
Water Condenser Automatic Expansion Valve (Cylinder) Air Condenser
Condenser Fan Motor
Condenser Fan Blade High Pressure Cut-Out shyHigh Pressure Cut-Out shyLow Pressure Cut-Out Solenoid Valve
Compressor 230160
AC WC
Compressor 208-230360 Sight Glass Drier (38) Receiver Tank Assembly Water Valve (not shown) Service Valve Compressor Mounting Kit
Note I) lt0 For All 50-Cycle Freezers Order By Freezer Serial Number
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Printad I usA
30
c W -I o o o a w ~ 3
III
~ W -I III J o C
w gta w en u o en
SOFT-SERVE - DOUBLE CAB - WATER COOLED REF PART No DESCRIPTION 1 155026 Water Condenser (B-side) 1 A 155039 Water Condenser (A-side) 2 159203 Sight Glass 3 155051 Drier (38) 4 155400 Automatic Expansion Valve (Cylinder) 5 Gear Reducer (see gear reducer breakdown page 36) 6 155410 Water Valve 7 155423 High Pressure Cut-Out 8 155403 Low Pressure Cut-Out 9 154976 Compressor 230160
151351 Capacitor Relay Assembly (Single Phase) 150247 Start Capacitor 150249 Run Capacitor 150245 Relay
9A 154975 Compressor 208-230360~-11 NOT USED ON THIS MODEL 12 155442 Low Temp Control 13 Driven Pulley (order by freezer serial no) 14 Belt (order by freezer serial no) 15 Driver Pulley (order by freezer serial no) 16 155422 Solenoid Valve 17 151044 Motor 1 phase 230 volt 17A 151052 Motor 3 phase 208230 volt 18 Motor Capacitors single phase only (order by freezer serial no)
Note For All 50-Cycle Freezers Order By Freezer Serial Number
cgt
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH _InU5A
32
c W J o o o -a oCt
aI oCt o W I m ) o c w gta w Ch t--LL o Ch
SOFTmiddotSERVE bull DOUBLE CAB - AIR COOLED REF PART No 1 155120 2 159020 3 151080 4 155400 5 6 159203 7 155051 8 112901 9 151044 9A 151052 10 11 12 14 154976
14A 154975 15 155401 16 155403 17 155443 18 155442 19
21 155422
DESCRIPTION Condenser Fan Blade Fan Motor Automatic Expansion Valve (Cylinder) Reducer (see gear reducer breakdown page 36) Sight Glass Drier Receiver Assembly Motor 1-Phase 230 Volt Motor 3-Phase 208230 Volt Driven Pulley (order by freezer serial no) Belt (ordr by freezer serial no) Driver Pulley (order by freezer serial no) Compressor 230160 151351 Capacitor Relay Assembly (Single Phase)
150247 Start Capacitor 150249 Run Capacitor 150245 Relay
Compressor 208-230360 High Pressure Cut-Out Low Pressure Cut-Out Cabinet Thermostat Low Temp Thermostat NOT USED ON THIS MODEL Motor Capacitors single phase only (order by freezer serial no) Solenoid Valve
Note For All 50-Cycle Freezers Order By Freezer Serial Number
Vl Vl
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prinled In USA
CAB PARTS BREAKDOWN
REF PART No DESCRIPTION PART No DESCRIPTION 1 155109 Cabinet Coil 136297 Condensate Pan (Not Shown) 1A 155113 Motor Cabinet Fan 196092 Mix Tank 7-12 Gal 1B 155099 Fan Blade Cabinet Coil 113997 Front Lid Mix Container
7-12 Gal 136248-01 Rear Lid Mix Cont 7-12 Gal
10 155416 CAB Automatic Expansion 130092 Mix Tube Valve 196028 Mix Tank 10 Gal
137119 Probe 11 -1 4 shy1E 155114 Fan Grill amp Bracket 7-12 Gal Container 1F 155116 Knob 137119-01 Probe 10-34 shy2 113898 DPR Pump Less Motor 7-12 amp 10
(see pump breakdown Gal Container pg 38) 137119-02 Probe 10-14 shy
3 196061 Mix Hose (sold by the foot) 10 Gal Container 4 150416 Door Switch 137120 Base Probe Mtg 4A 114630 Actuator Door Switch 160500 O-Ring
(Not Shown) 114572 Hose Clamp (Not Shown) 5 150527 Retractable Cordset 34
MIg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prlmd UsA
MERCHANDISING ASSY
PART No 115108 115107
PART No
196107-01 196108-01 114610 114608 115132 199030
PART No 162105 162106 112978 158004 158021 158022 158078 158000 158056 158000A 158014 158014A 161000 158049
DESCRIPTION 2S Merchandiser-927-957-978CAB 24 Merchandiser-917CAB
DRIP TRAY
DESCRIPTION
24 Drip Tray-917CAB 26- Drip Tray-927-957-978CAB 24 Tray Insert-917CAD 26 Tray Insert-978CAB-927CAB 26 Tray Insert-957CAB Rubber Bumper (only)
DESCRIPTION Caster With Brake Caster Without Brake Leg-6 4 Cylinder Brush Mix Hose Brush 58 Dia w6 Ft Handle 14 Pump Brush Drain Tube Brush Petrol Gel (12 tube carton) Petrol Gel (6 tube carton) Pe1rol Gel (per tube) Stera Sheen (per case) Stera Sheen (per jar) Pocket Thermometer 1 Dial Z32 Overrun Scale
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SNAKE bull SLUSH
35
36
GEAR REDUCERS Order By Freezer Serial Number
Model 3 CB
153345 5-1 Ratio B side 153004 High Speed Cup ~ (2 ea required) 153005 High Speed Bearing (2 ea required) 153008 Slow Speed Cup (2 ea required) 153009 Slow Speed Bearing (2 ea required) 153052 Slow Speed Seal (2 ea required) 153054 High Speed Seal (2 ea required) 153313 Brass Gear 5-1 Ratio 153336 Slow Speed Shaft Only 5-1 Ratio 153316 Worm Gear On Shaft 5-1 Ratio 114873 Gasket Set
Model 4 CB
153342 10-1 Ratio A side 153343 10-1 Ratio B side
153014 High Speed Cup (2 ea required) 153015 High Speed Bearing (2 ea required) 153011 Slow Speed Cup (2 ea required) 153012 Slow Speed Bearing (2 ea required) 153051 Slow Speed Seal (2 ea required) 153053 High Speed Seal (2 ea required) 153349 Brass Gear 10-1 Ratio 153339 Slow Speed Shaft OnIy 10-1 Ratio 153347 Worm Gear on Shaft 10-1 Ratio 114874 Gasket Set
Winlwin Model
153341 Wintwin 10-1 Ratio A and B Side
153014 High Speed Cup (2 ea required) 153015 High Speed Bearing (2 ea required) 153011 Slow Speed Cup (2 ea required) 153012 Slow Speed Bearing (2 ea required) 153051 Slow Speed Seal (2 ea required) 153053 High Speed Seal (2 ea required) 153349 Brass Gear 153350 Slow Speed Shaft Only 153348 Worm Gear on Shaft 11 4874 Gasket Set
158055 Gear Reducer OU 51001
Drive Coupling (Order By Machine Serial Number)
Mfg by H C DUKE amp SON INC bull 2115 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
917 amp 927 Beater Shaft Assembly
957 Beater Shaft
Item Part No Description
1 196079 Bushing-Cylinder 2 114752 Beater-Assy Long (Shaft) 3 137334 Blade-Scraper Soft Serve 4- 160500 O-Ring (Shaft Seal) 5- 133098 Bushing (Washer-Shaft Seal) 6 160557 Seal-Beater Shaft
-Items 4-6 111875 Seal-Assy Shaft (Complete)
31
1 113438 2 196079 3 137334 4- 160500 5- 133098 6 160557
-Items 4-6 111875
Shaft-Assy Beater Bushing-Cylinder Blade-Scraper O-ring (Shaft Seal) Washer-Shaft Seal (Bushing) Seal-Beater Shaft (Cup)
Seal-Assy Shaft (Complete)
ao
DISPENSING HEAD
16
r
Q
--~
-----_
REF PART No DESCRIPTION Tl3o 6 119928- Door Assembly shy Complete (Items 7-14) 11637- 7 196688 Door shy Less Parts
a 134921 Spigot shy Less Extension 9 134922 Handle Extension shy Spigot
10 162624 Handle 11 159295 OmiddotRings shy Spigot (Lots of 5)12 159309 O-ring shy 4 - Door 13 196066 Air Relief Screw 14 160621 a-Ring shy Air Relief Screw (Lots of 5)15 136126 Rod - Spigot Switch shy 917 8 927 16 136798 HMdKnob
38
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illmols 61244
SUPERIOR QUAUlY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
Duke Soft Serve Freezer Models 917R and 927RN
5 -______
7
6
UPDATEDDispense Head Assembly
Item Part No
115130 1 116321 2 160583 3 115129 4 160562 5 136126 6 134921 SA 162624 68 134922 7 159295 8 160584 9 162625 9A 114341 10 196185 10A 137870 108 136713
116410
Includes items 1-4 6-8
Description
Head-Assy Dispense (Complete) Head-Assy wActualor O-ring (Head-4-inch) Bleeder-Assy (Air Relief Plug) O-ring (Bleeder-Assy) Rod-Spigot Switch Spigot-long Single Handle-Black Tapered Handle-Spigot (Stainless Steel) O-ring (Spigot) O-ring (Extension) Knob-Hand Stud-Assy Cylinder 1-15116 inch (not shown) Nouie-Slar Adapter (accessory) Adapter-Yogurt Nozzle (not shown) Extension-Spigot (accessory-cake not shown) Kit-Dispense Head Switch
( Use only original or authorized replacement parts with this freezer )
DISPENSING HEAD
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH uu
REF PART No 114765
1 196082 2 114313 3 137018 5 136618 6 162626 8 134499 9 162625
10 115129 11 136794 12 159309 13 159295 14 160562 15 136713 16 160584
DESCRIPTION Door Assy-Complete Door-Less Parts Spigot Assy-Side Spigot Only-Center Extension Only-Center Handle Stud-Handle Stop Hand Knob Air Re1ief-Assy Rod-Spigot Switch O-Ring-4-Door O-Ring-Spigot O-Ring-Air Relief Extension-Spigot a-Ring
39
40
PUMP MOTOR AND HOUSING ASSEMBLY SAFETY SWITCH ASSEMBLY
PRESSURE SWITCH ASSEMBLY ijreg~
I
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH IIIUaA
CAB DPR PUMP BREAKDOWN
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 196091 Pump Base 46 114009 Pump Cover 2 136088 Pump Support 47 113464 Base Bracket Assembly 3 150784 Strain Relief Bushing 48 135725 Stud 1-78 4 Power Cord 49 160131 516 Flatwasher 5 160075 10-24 x 38 Screw 50 160293 Speed Clip 6 135416 Cover Electric Box 51 135724 Button 7 160141 14 Lockwasher 52 160140 10 Lockwasher 8 160491 14-20 x 34 Socket Screw 53 135726 Stud 3 9 113497 Motor Cord 18-3 SJT 54 160109 10-24 Hex Nut 10 151127 Motor 40 RPM Soft Serve 55 135729 Switch Actuator 11 160023 14-20 x 1 Screw 56 135731 Stop - Max Pressure 12 153317 Half Moon Key 57 162315 Spring - Soft Serve 13 112925 Cam Drive Plate Assembly 58 160138 10 Flat Washer 14 160495 14-20 x 14 Set Screw 59 160304 10-24 Stop Nut 15 160369 Pin 60 150456 Pressure Switch 16 134614 Swing Clamp 61 135744 Insulator - Fiber 17 134521 Adjusting Clamp 62 160381 6-32 x 1 Socket Screw 18 160488 Thumb Screw 63 160393 6 Flatwasher 19 134604 Bearing Bushing 64 160146 6 Lockwasher 20 134602 Connecting Rod 65 160309 6-32 Hex Nut 21 134601 Piston 66 160006 6-32 x 14 Screw 22 159295 O-Ring 67 160001 8-32 x 38 Screw 23 134603 Wrist Pin 68 160470 8 Lockwasher 24 136089 Cylinder 69 150481 Circuit Breaker 25 199011 Washer Valve 70 135727 Switch Bracket 26 159282 O-Ring 71 136311 Spacer - Cover Switch 27 113839 Pump Valve Housing 72 160028 Truss Head Screw
Assembly (Metal) 14-20 x 34 SST 28 160582 O-Ring 73 160141 Lockwasher 14 29 199020 Sleeve Rubber 74 160104 Hex Nut 14-20 30 135793 Retainer Clip 75 136312 Button Guard 31 135791 Adapter Hose Outlet 76 160020 Hex Hd Cap Screw 32 160581 O-Ring 14-20 x 1 SST 33 135790 Piston 77 113869 Switch Bracket 34 162308 Spring Soft Serve 78 136110 Button Cover Switch 35 135792 Drain Port 79 162314 Spring 36 160611 O-Ring 80 150456 Switch Pump Safety 37 135896 Hose 24 81 135004 Switch Cover 38 160738 Hose Clamp 82 160296 Screw RH 39 136288 Keeper 6-32 x 1-14 40 160554 O-Ring 83 160146 Lockwasher 6 41 160368 Wing Nut Int Tooth 42 130054 Diaphragm Housing 84 160393 Flatwasher 6 43 199019 Diaphragm 85 160309 Hex Nut 6-32 44 196074 Air Tube-Curved 86 114572 Hose Clamp 45 163433 Air Meter - 20 87 160048 14-20 x 12 TRHM
(other sizes available) 88 160308 6-32 x 516 RDHM 89 114581 Circuit Breaker Bracket
Not Shown 90 163109 Stop Pivot 112791 DPR Pressure Gauge
41
Mfg by H C DUKE amp SON INC 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
42
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Unit does not operate 1 Fuse blown at main disconshy 1 Check fuse size check for low nect voltage if not within 10 of
nameplate rating install transformer or call power company
2 Beater motor out on overload 2 Press starter reset button and check for low voltage Check producllemperalure and overrun
3 Disconnected or broken wife 3 Check wiring and wire connecshyin electrical circuit lions repair or replace lead
wires as necessary
4 Faulty selector switch 4 Replace selector switch
5 Out on high pressure 5 Check for low waler supply or dirty air conden ser
6 Out on low pressure 6 Check limit control and freon charge
Compressor does not operate f Troubte in compressor con- I Refer to Trouble-Shootingshyor operates improperly densing circuit Compressor I Condensing
Circuit
2 Faulty capacitor assembly 2 Replace capaCitor assembly (Single phase only)
3 Faulty contactor 3 Replace contaclOr or pOints
Compressor operates but 1 Loose con neclion at motor 1 Tighten connection beater motor does not starter coil (electrical box)
2 Open starter coil 2 Replace coil
3 Faulty capacitor assembly 3 Replace capaCitor assembly (Single phase only)
Dispensed product too hard 1 Cylinder themostat erratic 1 Adjust thermo slat or replace or set too low
2 Faulty time delay relay 2 Replace time delay relay
3 Solenoid valve leaking 3 Replace solenoid valve
4 Low suction pressure 4 See chart on page 15 for adshyjustments
Leaking of mix from rear housshy 1 Damaged bealer shalt seal 1 Replace shaft seal or O-ring ing discharge tube to drip tray inside seal assy
Mig by H C DUKE amp SON INC bull 2116 Eighlh Avenue Easl Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Mix leaking at dispensing head 1 Faulty 4 O-Ring
2 Head not properly installed
1 Replace 4 O-Ring
2 Install head properly
Mix sours in cabinet 1 Cabinet thermostat setting too high
2 Cabinet thermostat detective
3 Cabinet solenoid valve deshyfective
4 Cabinet switch defective
5 Beater motor out on overshyload (cab side)
1 Adjust thermostat
2 Replace thermostat
3 Replace coil or solenoid
4 Replace cabinet switch
S Reset overload for beater motor See pg 42 unit does not operate
Cabinet too COld
Machine runs continually and Product continues to get colder
Compressor operates only when dispensing
Unit runs conMuously Product does nol reach 180 F temperature
6 Door sWitch defectIVe
1 Cabinet thermostat setting too low
2 Defective thermostat
3 Cabinet solenoid stuck open
4 Cabinet expansion valve set too low
1 Plunger switch out of adjustshyment
2 Su ction pressure too low
3 Defective plunger switch
4 Plunger switch rod engaged
5 Faulty time delay relay
6 Starter or relay contacts stuck
7 Faulty thermostat or bulb not deep enough in well
6 Replace door SWitch
1 Adjust thermostat
2 Replace thermostat
3 Replace solenoid
4 Adjust cabinet expansion valve (See pg 15)
1 Adjust plunger switch
2 Adjust expansion valve and check freon charge
3 Replace plunger switch
4 Close plunger completely
5 Replace time delay relay
I 6 Check contacts i
7 Check bulb location or replace thermostat
1 Cylinder themostat setting 1 Adjust thermostat or replace too high or thermostat deshyfective
1 Trouble in compressor I condensing system
2 ExpanSion valve setiing is too high
3 Low on refrigeranl
1 See Trouble-Shooling-CompressorI Condensing circuit
2 Adjust expansion valve
3 Check and repair leak and recharge
1
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE SLUSHbull
43
44
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Dispensed product too soft (Product temperature above 21 0 F)
1 Automatic expansion yalve incorrectly set or erratic in operation
-2 Leak in refrigeration system
resulting in little or no refrigeration
1 Adjust or replace expanSion valve
2 Pump down system or remove refrigerant charge repair leak evacuate and recharge
3 Excessive oil in system 3 Drain compressor to proper oil leyel pump down and flush system
4 Thermostat set too high taulty
or 4 Adiust thermostat or replace
Product dispenses slOWly out dispensing head
1 Reverse rotation 1 Change rotation to clockshywise from front of freezer
2 Dispensing speed adjustshyment boll too far down
2 Adjust bolt upward
3 Pum p problem 3 See pump Trouble-Shooting chart
4 Product too cold 4 See dispensed product too hard pg42
TROUBLE-SHOOTING CHART COMPRESSORICONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor will not start -hums intermittently (cycling on oyerload)
1 Improperly wired
2 Low line Yoltage
3 Open starting capacitor (single phase only)
4 High discharge pressure
1 Check wiring against diagram
2 Ask power company to increase YOltage to not less than 10 below nameplate rating or install transformer Check for inadequate wire size
3 Replace starting capacitor
4 CheCK water regulating valve setting Check water or air condenser and clean if necessary Make sure disshycharge shut-oft valve is open
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor starts but remains 1 Low line voltage 1 Ask power company to in start windings increase voltage to not less (Single phase only) than 10 below nameplate
rating or install transrormer
2 Improperly wired 2 Check wiring against drawing Check wire size
3 Running capacitor shorted 3 Check by disconnecting running capacitor
4 Starting capacitor weak 4 Check capacitor replace
5 High disCharge pressure 5 Check water regulating valve check water or air condenser and clean il necessary Check discharge shut-off valve
Starter burned out 1 Low line voltage 1 Ask power company to inshycrease voltage to not less than 10 below nameplate rating or install transformer
2 Excessive line voltage 2 Ask power company to reduce voltage to maximum of 10 over nameplate rating
Starting capacitors burn out 1 Voltage 100 low 1 Ask power company to (Single phase only) increase voltage to not less
than 10 below nameplate rating or install translonmer
2 Improper capacitor 2 Replace capacitor with properly rated capacitor as listed in manual
Running capacitors burn out 1 Excessive line voltage 1 Ask power company to reshy(Single phase only) duce line voltage to not more
than 10 above rating 01 motor
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
45
46
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Unit operates long or continuously
1 Shortage of gas
2 Dirty condenser
3 Moisture in system
4 Compressor failing
1 Repair leak and recharge
2 Clean condenser
3 Evacuate and recharge system
4 Check compressor lor proper pressures If inadequate replace compressor
Head pressure too high 1 Refrigerant overcharge
2 Air in system
3 Dirty condenser (air cooled)
4 Unit location too warm (air cooled)
5 Restricted water cooled condenser
6 Water turned off or defective
1 Purge system
2 Purge system evacuate and recharge
3 Clean condenser
4 Relocate unIt away from restriction Place nothing against back or on top of unit
5 Clean or replace condenser
6 Turn on water Or replace water regulating valve regulating valve
Head pressure too low 1 Shortage 01 refrigerant 1 Repair leak and recharge
2 Water regulating valve open 2 Adjust regulating valve too wide
Water 1I0wing through water 1 Water regulating valve 1 Replace water regulating valve waste line when unit is not in operation
defective
Noisy compressor 1 Tubing raUle 1 Bend tubes away from contact
NOTE Refer to warranty card prior to compressor replacement
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING DPR PUMP
TROUBLE PROBABLE CAUSE REMEDY
Pump will not run 1 Pump cover removed 1 Install pump cover
2 Pressure switch actuating 2 Free bulton-check spring and
bulton stuck open (in) pressure switch alignment
3 Pressure switch burned out 3 Replace pressure switch
4 Starting switch in motor bad 4 Install new starting switch
5 Motor burned out 5 Replace motor
6 Circuit breaker kicked out 6 Allow to re- set Replace it or faulty circuit breaker will not
automatically re-set
Motor runs-cam drive plate 1 Loose cam drive plate 1 Tighten set screw in cam will not turn drive plate Check woodruff key
2 Gear stripped 2 Replace gear
Pump will not shut off Mix 1 Pressure swilch actuating 1 Free button-check pressure shoots out pressure relief bulton stuck closed (out) switch alignment
2 Pressure switch stuck in 2 Replace pressure switch closed position
3 Pressure switch assy out 3 Using pressure gauge adjust of adjustment pressure
4 Dirty or plugged diaphragm 4 Disassemble and clean housing (Ref 42) housing
5 Defective O-Ring on 5 Replace O-Ring pressure relief piston
Pump will not prime 1 Insufficient supply of mix 1 Replenish mix supply
2 Piston O-ring defective-no 2 Replace piston O-Ring and suction lubricate
3 Washer valve not sealing 3 Replace washer valve DO NOT LUBRICATE
Pump primes No pressure in 1 Sleeve (Rei 29) not sealing 1 Replace sleeve DO NOT cylinder properly LUBRICATE
2 Loose hose connection on 2 Install or tighten hose clamp pump valve housing (Ref 27)
Mix shoots out Of air intake line 1 Washer valve (Ref 25) 1 Replace washer valve-DO not sealing properly NOT LUBRICATE
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOfT SERVE bull SHAKE bull SLUSH
47
48
TROUBLE-SHOOTING DPR PUMP
Too much air overrun too high-popping problems
Product dispenses slowly out of disPenSing head
1 Air meter too large (Ref 45)
2 Air leak befween mix conshytainer and mix inlet
3 Air line hose crackedshysucking air (Ref 44)
4 Pump pressure too lowshycylinder not full
1 Pump pressure too low
2 PrOduct too cold
3 Low overrun
Diaphragm housing leaking mix 1 Diaphragm housing loose
2 Diaphragm defective
Piston drive assy noisy 1 Bushing bearing worn
2 Defective gear in gear motor
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SIfAKE bull SLUSH
REMEDY
1 Replace washer valve-DO NOT LUBRICATE
2 Install clamp on hose
1 Replace O-Ring and LUBRIshyCATE
1 Clean or replace air meter
2 Replace tube
1 Install smaller air meier
2 Repair as needed
3 Replace air line hose
4 Using pressure gauge adjust pressure switch
1 Using pressure gauge adjust pump pressure
2 Check product temperatureshyshould be about 18 F
3 Check meter-if plugged-clean
1 Tighten wing nuls (Ref 41)
2 Replace diaphragm (Ref 43)
1 Replace bushing bearing (Ref 19)
2 Replace gear
TROUBLE
Mix inlet hose loses prime
Mix on top of piston
PROBABLE CAUSE
1 Washer valve (Ref 25) not sealing properly
2 Mix inlet hose loose
1 Piston O-Ring leaking (Ref 22)
No Air (Overrun) 11 Ai r meter plugged (Ref I 45)
2 Curved air tube pinched
--
DPR PUMP aI
PART NO 199019(i) PART NO 199020 reg DIAPHRAGM RUBBER SLEEVE
PART NO159295 PART NO 159282reg O-RING O-RING0
PART NO 160581reg O-RING
o PART NO PART NO
PART NO199011() 160611(8) 160582 WASHER VALVE O-RING O-RING
PISTON
cJ
DIAPHRAGM HOUSING
CYLINDER
VALVE HOUSIN6 ASSEMBLY
PUUPOUTLET
DRAIN PORT
I PHNO309-755-4553 O-RING CHART HCDUKEampSONINC I
1 I84Z08 SOFT SERVE DISPENSING HEADS I
o PART NO 1605620
PAR~159--1b
PART NO PART NO 1605841 59295()
I PHNO 309-755-4553 O-R ING CHART HCDUKEampSONINC I
- Cover
- Table of Contents
- Safety
- Uncrating amp Inspection13
- Explanation of Electrical Controls
- Operation of Machine
- General Information
- Maintenance amp Adjustment
- Parts Breakdowns
- Trouble-Shooting Charts
- O-ring Charts
-
(7) Insert the beater shaft (Ref 2) with the shaft seal and blades into the cylinder and engage beater shaft in the drive coupling Place bushing on front of beater shaft
(8) Tape a dime (10 cents) to the back of the dispensing head in the very center at the point where the beater shaft touches the dispensing head The dime is used to acquire the proper end play setting on the drive coupling which is approximately 332
(9) Place the dispensing head into the cylinder and tighten with the hand knobs Important make sure hand knobs are tight and head is against the end of the cylinder tube
(10) Slide the drive coupling (Ref 4) forward until it is tight against the beater shaft and lock into place the four (4) set screws (Ref n
(11) Remove the dime from the back of the dispensing head
(12) Replace the drive belts
(13) Turn on electrical power
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
23
PANEL BREAKDOWN - 917CAB
~--~
3
REF PART No 1A 114544 1B 112991 2A 136075 2B 136102
3A 137027 3A 137028
3A 136105 3B 136103
3B 134817 4 134818
4 136101 5A 114780
5A 113570 5B 112967
6 112960 7 133291
24 A 917CAB only
I
dJ
DESCRIPTION Frame ssmiddoty Frame ASsmiddoty Lower Side Panel Lower Side Panel LH Side Panel RH Side Panel Upper Side Panel Upper Side Panel Upper Side Panel Rear Panel Rear Panel Top Cover ASsmiddoty Top Cover ASsmiddoty Top Cover ASsmiddoty Filler Panel ASsmiddoty Top Filler Strip
B bull 44 CAB only
~
[At 16 lt0
REF 8
9 10 11 12 12A 13
14 15 16 16A
Air Cooled only
PART No DESCRIPTION 132687 Dispense Panel 134247-01 Dispense Panel Cab-W
Drip Tray (See Pg 35) 114260-01 Door Assmiddoty wIHinges 132444-01 Left Hand Filler Strip 162045 Upper Hinge 162052 Spring LH 162046 Lower Hinge 160026 Screw 160020 Bolt 160139 Washer 110205 Syrup Jar Enclosure 160563-01 Door Gasket 01-Groove) 159174 Drip Tray Button 160293 Clip for Button
Water Cooled only
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
~~
1 ~~o ~o
)
cp I
L~
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 114538 Frame Assy 10 162045 bull Upper Hinge 2 136289 Side Panel LH lOA 162052 Spring LH 3 136313 Rear Panel 11 162046 Lower Hinge 4 114006 Top Panel AC llA 160026 Screw 4A 114428 Top Panel WC l1B 160020 Bolt 4B 114157 Top Panel AC Remote l1C 160139 Washer 5 113983 Front Panel Assy 927CAB 12 136216 Side Panel RH 5A 113985 Front Panel Assy 957cAB 13 160563 Door Gasket (V-Groove) 6 130021 Rear Corner Channel RH 14 159174 Drip Tray Button 6A 135254 Rear Corner Channel LH 14A 160293 Clip for Button 7 137228 Dispensing Panel 162108 Stop Pin (Screw In) 8 Drip Tray (See Pg 35) 136199 Door Pull 9 114260 Door Assy wHinges
25
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
SOFT SERVE CAB ELECTRICAL BOX
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 Contactor (Order By Freezer 5 150463 Selector Switch
Serial Number) 6 159235 Toggle Switch (Pump) 2 Overload (Order By Freezer 7 150456 Spigot Switch
Serial Number) 7A 136124 Button - Spigot Switch 2A Heater Coil (Order By Freezer 7B 162302 Spring - Spigot Switch
Serial Number) 8 150553 Pilot Light - Amber 3 Starter (Order By Freezer 9 150552 Pilot Light - Red
Serial Number) 10 161026 Thermometer (Not Shown) 4 150208 Timer
26
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Pointed u
- - --- -
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prifllcl If USA
In-
ca ~ Q ltC wr w I
Zshy
2B
()
w gta w ()
tshy~ o ()
SOFT-SERVE - SINGLE HEAD CAB
REF PART No 1 151351
2 3 4 5 6 151044
151052 7
8 155039 9 155400 10 155117
11 151084
12A 159021 13 155401 13A 155423 14 155403 15 155422
16 154976 16 154975 17 159203 18 155051 19 112901
155410 20 155044
151348
DESCRIPTION Capacitor Relay Assembly (single phase)
150247 Start Capacitor
150249 Run Capacitor 150245 Relay Motor Capacitors (order by freezer serial no) Gear Reducer (see gear reducer breakdown page 36) Driven Pulley (order by freezer serial no) Belt (order by freezer serial no) Motor 1-phase 230 volt Motor 3-phase 208230 volt Driver Pulley (order by freezer serial no)
Water Condenser Automatic Expansion Valve (Cylinder) Air Condenser
Condenser Fan Motor
Condenser Fan Blade High Pressure Cut-Out shyHigh Pressure Cut-Out shyLow Pressure Cut-Out Solenoid Valve
Compressor 230160
AC WC
Compressor 208-230360 Sight Glass Drier (38) Receiver Tank Assembly Water Valve (not shown) Service Valve Compressor Mounting Kit
Note I) lt0 For All 50-Cycle Freezers Order By Freezer Serial Number
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Printad I usA
30
c W -I o o o a w ~ 3
III
~ W -I III J o C
w gta w en u o en
SOFT-SERVE - DOUBLE CAB - WATER COOLED REF PART No DESCRIPTION 1 155026 Water Condenser (B-side) 1 A 155039 Water Condenser (A-side) 2 159203 Sight Glass 3 155051 Drier (38) 4 155400 Automatic Expansion Valve (Cylinder) 5 Gear Reducer (see gear reducer breakdown page 36) 6 155410 Water Valve 7 155423 High Pressure Cut-Out 8 155403 Low Pressure Cut-Out 9 154976 Compressor 230160
151351 Capacitor Relay Assembly (Single Phase) 150247 Start Capacitor 150249 Run Capacitor 150245 Relay
9A 154975 Compressor 208-230360~-11 NOT USED ON THIS MODEL 12 155442 Low Temp Control 13 Driven Pulley (order by freezer serial no) 14 Belt (order by freezer serial no) 15 Driver Pulley (order by freezer serial no) 16 155422 Solenoid Valve 17 151044 Motor 1 phase 230 volt 17A 151052 Motor 3 phase 208230 volt 18 Motor Capacitors single phase only (order by freezer serial no)
Note For All 50-Cycle Freezers Order By Freezer Serial Number
cgt
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH _InU5A
32
c W J o o o -a oCt
aI oCt o W I m ) o c w gta w Ch t--LL o Ch
SOFTmiddotSERVE bull DOUBLE CAB - AIR COOLED REF PART No 1 155120 2 159020 3 151080 4 155400 5 6 159203 7 155051 8 112901 9 151044 9A 151052 10 11 12 14 154976
14A 154975 15 155401 16 155403 17 155443 18 155442 19
21 155422
DESCRIPTION Condenser Fan Blade Fan Motor Automatic Expansion Valve (Cylinder) Reducer (see gear reducer breakdown page 36) Sight Glass Drier Receiver Assembly Motor 1-Phase 230 Volt Motor 3-Phase 208230 Volt Driven Pulley (order by freezer serial no) Belt (ordr by freezer serial no) Driver Pulley (order by freezer serial no) Compressor 230160 151351 Capacitor Relay Assembly (Single Phase)
150247 Start Capacitor 150249 Run Capacitor 150245 Relay
Compressor 208-230360 High Pressure Cut-Out Low Pressure Cut-Out Cabinet Thermostat Low Temp Thermostat NOT USED ON THIS MODEL Motor Capacitors single phase only (order by freezer serial no) Solenoid Valve
Note For All 50-Cycle Freezers Order By Freezer Serial Number
Vl Vl
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prinled In USA
CAB PARTS BREAKDOWN
REF PART No DESCRIPTION PART No DESCRIPTION 1 155109 Cabinet Coil 136297 Condensate Pan (Not Shown) 1A 155113 Motor Cabinet Fan 196092 Mix Tank 7-12 Gal 1B 155099 Fan Blade Cabinet Coil 113997 Front Lid Mix Container
7-12 Gal 136248-01 Rear Lid Mix Cont 7-12 Gal
10 155416 CAB Automatic Expansion 130092 Mix Tube Valve 196028 Mix Tank 10 Gal
137119 Probe 11 -1 4 shy1E 155114 Fan Grill amp Bracket 7-12 Gal Container 1F 155116 Knob 137119-01 Probe 10-34 shy2 113898 DPR Pump Less Motor 7-12 amp 10
(see pump breakdown Gal Container pg 38) 137119-02 Probe 10-14 shy
3 196061 Mix Hose (sold by the foot) 10 Gal Container 4 150416 Door Switch 137120 Base Probe Mtg 4A 114630 Actuator Door Switch 160500 O-Ring
(Not Shown) 114572 Hose Clamp (Not Shown) 5 150527 Retractable Cordset 34
MIg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prlmd UsA
MERCHANDISING ASSY
PART No 115108 115107
PART No
196107-01 196108-01 114610 114608 115132 199030
PART No 162105 162106 112978 158004 158021 158022 158078 158000 158056 158000A 158014 158014A 161000 158049
DESCRIPTION 2S Merchandiser-927-957-978CAB 24 Merchandiser-917CAB
DRIP TRAY
DESCRIPTION
24 Drip Tray-917CAB 26- Drip Tray-927-957-978CAB 24 Tray Insert-917CAD 26 Tray Insert-978CAB-927CAB 26 Tray Insert-957CAB Rubber Bumper (only)
DESCRIPTION Caster With Brake Caster Without Brake Leg-6 4 Cylinder Brush Mix Hose Brush 58 Dia w6 Ft Handle 14 Pump Brush Drain Tube Brush Petrol Gel (12 tube carton) Petrol Gel (6 tube carton) Pe1rol Gel (per tube) Stera Sheen (per case) Stera Sheen (per jar) Pocket Thermometer 1 Dial Z32 Overrun Scale
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SNAKE bull SLUSH
35
36
GEAR REDUCERS Order By Freezer Serial Number
Model 3 CB
153345 5-1 Ratio B side 153004 High Speed Cup ~ (2 ea required) 153005 High Speed Bearing (2 ea required) 153008 Slow Speed Cup (2 ea required) 153009 Slow Speed Bearing (2 ea required) 153052 Slow Speed Seal (2 ea required) 153054 High Speed Seal (2 ea required) 153313 Brass Gear 5-1 Ratio 153336 Slow Speed Shaft Only 5-1 Ratio 153316 Worm Gear On Shaft 5-1 Ratio 114873 Gasket Set
Model 4 CB
153342 10-1 Ratio A side 153343 10-1 Ratio B side
153014 High Speed Cup (2 ea required) 153015 High Speed Bearing (2 ea required) 153011 Slow Speed Cup (2 ea required) 153012 Slow Speed Bearing (2 ea required) 153051 Slow Speed Seal (2 ea required) 153053 High Speed Seal (2 ea required) 153349 Brass Gear 10-1 Ratio 153339 Slow Speed Shaft OnIy 10-1 Ratio 153347 Worm Gear on Shaft 10-1 Ratio 114874 Gasket Set
Winlwin Model
153341 Wintwin 10-1 Ratio A and B Side
153014 High Speed Cup (2 ea required) 153015 High Speed Bearing (2 ea required) 153011 Slow Speed Cup (2 ea required) 153012 Slow Speed Bearing (2 ea required) 153051 Slow Speed Seal (2 ea required) 153053 High Speed Seal (2 ea required) 153349 Brass Gear 153350 Slow Speed Shaft Only 153348 Worm Gear on Shaft 11 4874 Gasket Set
158055 Gear Reducer OU 51001
Drive Coupling (Order By Machine Serial Number)
Mfg by H C DUKE amp SON INC bull 2115 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
917 amp 927 Beater Shaft Assembly
957 Beater Shaft
Item Part No Description
1 196079 Bushing-Cylinder 2 114752 Beater-Assy Long (Shaft) 3 137334 Blade-Scraper Soft Serve 4- 160500 O-Ring (Shaft Seal) 5- 133098 Bushing (Washer-Shaft Seal) 6 160557 Seal-Beater Shaft
-Items 4-6 111875 Seal-Assy Shaft (Complete)
31
1 113438 2 196079 3 137334 4- 160500 5- 133098 6 160557
-Items 4-6 111875
Shaft-Assy Beater Bushing-Cylinder Blade-Scraper O-ring (Shaft Seal) Washer-Shaft Seal (Bushing) Seal-Beater Shaft (Cup)
Seal-Assy Shaft (Complete)
ao
DISPENSING HEAD
16
r
Q
--~
-----_
REF PART No DESCRIPTION Tl3o 6 119928- Door Assembly shy Complete (Items 7-14) 11637- 7 196688 Door shy Less Parts
a 134921 Spigot shy Less Extension 9 134922 Handle Extension shy Spigot
10 162624 Handle 11 159295 OmiddotRings shy Spigot (Lots of 5)12 159309 O-ring shy 4 - Door 13 196066 Air Relief Screw 14 160621 a-Ring shy Air Relief Screw (Lots of 5)15 136126 Rod - Spigot Switch shy 917 8 927 16 136798 HMdKnob
38
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illmols 61244
SUPERIOR QUAUlY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
Duke Soft Serve Freezer Models 917R and 927RN
5 -______
7
6
UPDATEDDispense Head Assembly
Item Part No
115130 1 116321 2 160583 3 115129 4 160562 5 136126 6 134921 SA 162624 68 134922 7 159295 8 160584 9 162625 9A 114341 10 196185 10A 137870 108 136713
116410
Includes items 1-4 6-8
Description
Head-Assy Dispense (Complete) Head-Assy wActualor O-ring (Head-4-inch) Bleeder-Assy (Air Relief Plug) O-ring (Bleeder-Assy) Rod-Spigot Switch Spigot-long Single Handle-Black Tapered Handle-Spigot (Stainless Steel) O-ring (Spigot) O-ring (Extension) Knob-Hand Stud-Assy Cylinder 1-15116 inch (not shown) Nouie-Slar Adapter (accessory) Adapter-Yogurt Nozzle (not shown) Extension-Spigot (accessory-cake not shown) Kit-Dispense Head Switch
( Use only original or authorized replacement parts with this freezer )
DISPENSING HEAD
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH uu
REF PART No 114765
1 196082 2 114313 3 137018 5 136618 6 162626 8 134499 9 162625
10 115129 11 136794 12 159309 13 159295 14 160562 15 136713 16 160584
DESCRIPTION Door Assy-Complete Door-Less Parts Spigot Assy-Side Spigot Only-Center Extension Only-Center Handle Stud-Handle Stop Hand Knob Air Re1ief-Assy Rod-Spigot Switch O-Ring-4-Door O-Ring-Spigot O-Ring-Air Relief Extension-Spigot a-Ring
39
40
PUMP MOTOR AND HOUSING ASSEMBLY SAFETY SWITCH ASSEMBLY
PRESSURE SWITCH ASSEMBLY ijreg~
I
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH IIIUaA
CAB DPR PUMP BREAKDOWN
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 196091 Pump Base 46 114009 Pump Cover 2 136088 Pump Support 47 113464 Base Bracket Assembly 3 150784 Strain Relief Bushing 48 135725 Stud 1-78 4 Power Cord 49 160131 516 Flatwasher 5 160075 10-24 x 38 Screw 50 160293 Speed Clip 6 135416 Cover Electric Box 51 135724 Button 7 160141 14 Lockwasher 52 160140 10 Lockwasher 8 160491 14-20 x 34 Socket Screw 53 135726 Stud 3 9 113497 Motor Cord 18-3 SJT 54 160109 10-24 Hex Nut 10 151127 Motor 40 RPM Soft Serve 55 135729 Switch Actuator 11 160023 14-20 x 1 Screw 56 135731 Stop - Max Pressure 12 153317 Half Moon Key 57 162315 Spring - Soft Serve 13 112925 Cam Drive Plate Assembly 58 160138 10 Flat Washer 14 160495 14-20 x 14 Set Screw 59 160304 10-24 Stop Nut 15 160369 Pin 60 150456 Pressure Switch 16 134614 Swing Clamp 61 135744 Insulator - Fiber 17 134521 Adjusting Clamp 62 160381 6-32 x 1 Socket Screw 18 160488 Thumb Screw 63 160393 6 Flatwasher 19 134604 Bearing Bushing 64 160146 6 Lockwasher 20 134602 Connecting Rod 65 160309 6-32 Hex Nut 21 134601 Piston 66 160006 6-32 x 14 Screw 22 159295 O-Ring 67 160001 8-32 x 38 Screw 23 134603 Wrist Pin 68 160470 8 Lockwasher 24 136089 Cylinder 69 150481 Circuit Breaker 25 199011 Washer Valve 70 135727 Switch Bracket 26 159282 O-Ring 71 136311 Spacer - Cover Switch 27 113839 Pump Valve Housing 72 160028 Truss Head Screw
Assembly (Metal) 14-20 x 34 SST 28 160582 O-Ring 73 160141 Lockwasher 14 29 199020 Sleeve Rubber 74 160104 Hex Nut 14-20 30 135793 Retainer Clip 75 136312 Button Guard 31 135791 Adapter Hose Outlet 76 160020 Hex Hd Cap Screw 32 160581 O-Ring 14-20 x 1 SST 33 135790 Piston 77 113869 Switch Bracket 34 162308 Spring Soft Serve 78 136110 Button Cover Switch 35 135792 Drain Port 79 162314 Spring 36 160611 O-Ring 80 150456 Switch Pump Safety 37 135896 Hose 24 81 135004 Switch Cover 38 160738 Hose Clamp 82 160296 Screw RH 39 136288 Keeper 6-32 x 1-14 40 160554 O-Ring 83 160146 Lockwasher 6 41 160368 Wing Nut Int Tooth 42 130054 Diaphragm Housing 84 160393 Flatwasher 6 43 199019 Diaphragm 85 160309 Hex Nut 6-32 44 196074 Air Tube-Curved 86 114572 Hose Clamp 45 163433 Air Meter - 20 87 160048 14-20 x 12 TRHM
(other sizes available) 88 160308 6-32 x 516 RDHM 89 114581 Circuit Breaker Bracket
Not Shown 90 163109 Stop Pivot 112791 DPR Pressure Gauge
41
Mfg by H C DUKE amp SON INC 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
42
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Unit does not operate 1 Fuse blown at main disconshy 1 Check fuse size check for low nect voltage if not within 10 of
nameplate rating install transformer or call power company
2 Beater motor out on overload 2 Press starter reset button and check for low voltage Check producllemperalure and overrun
3 Disconnected or broken wife 3 Check wiring and wire connecshyin electrical circuit lions repair or replace lead
wires as necessary
4 Faulty selector switch 4 Replace selector switch
5 Out on high pressure 5 Check for low waler supply or dirty air conden ser
6 Out on low pressure 6 Check limit control and freon charge
Compressor does not operate f Troubte in compressor con- I Refer to Trouble-Shootingshyor operates improperly densing circuit Compressor I Condensing
Circuit
2 Faulty capacitor assembly 2 Replace capaCitor assembly (Single phase only)
3 Faulty contactor 3 Replace contaclOr or pOints
Compressor operates but 1 Loose con neclion at motor 1 Tighten connection beater motor does not starter coil (electrical box)
2 Open starter coil 2 Replace coil
3 Faulty capacitor assembly 3 Replace capaCitor assembly (Single phase only)
Dispensed product too hard 1 Cylinder themostat erratic 1 Adjust thermo slat or replace or set too low
2 Faulty time delay relay 2 Replace time delay relay
3 Solenoid valve leaking 3 Replace solenoid valve
4 Low suction pressure 4 See chart on page 15 for adshyjustments
Leaking of mix from rear housshy 1 Damaged bealer shalt seal 1 Replace shaft seal or O-ring ing discharge tube to drip tray inside seal assy
Mig by H C DUKE amp SON INC bull 2116 Eighlh Avenue Easl Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Mix leaking at dispensing head 1 Faulty 4 O-Ring
2 Head not properly installed
1 Replace 4 O-Ring
2 Install head properly
Mix sours in cabinet 1 Cabinet thermostat setting too high
2 Cabinet thermostat detective
3 Cabinet solenoid valve deshyfective
4 Cabinet switch defective
5 Beater motor out on overshyload (cab side)
1 Adjust thermostat
2 Replace thermostat
3 Replace coil or solenoid
4 Replace cabinet switch
S Reset overload for beater motor See pg 42 unit does not operate
Cabinet too COld
Machine runs continually and Product continues to get colder
Compressor operates only when dispensing
Unit runs conMuously Product does nol reach 180 F temperature
6 Door sWitch defectIVe
1 Cabinet thermostat setting too low
2 Defective thermostat
3 Cabinet solenoid stuck open
4 Cabinet expansion valve set too low
1 Plunger switch out of adjustshyment
2 Su ction pressure too low
3 Defective plunger switch
4 Plunger switch rod engaged
5 Faulty time delay relay
6 Starter or relay contacts stuck
7 Faulty thermostat or bulb not deep enough in well
6 Replace door SWitch
1 Adjust thermostat
2 Replace thermostat
3 Replace solenoid
4 Adjust cabinet expansion valve (See pg 15)
1 Adjust plunger switch
2 Adjust expansion valve and check freon charge
3 Replace plunger switch
4 Close plunger completely
5 Replace time delay relay
I 6 Check contacts i
7 Check bulb location or replace thermostat
1 Cylinder themostat setting 1 Adjust thermostat or replace too high or thermostat deshyfective
1 Trouble in compressor I condensing system
2 ExpanSion valve setiing is too high
3 Low on refrigeranl
1 See Trouble-Shooling-CompressorI Condensing circuit
2 Adjust expansion valve
3 Check and repair leak and recharge
1
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE SLUSHbull
43
44
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Dispensed product too soft (Product temperature above 21 0 F)
1 Automatic expansion yalve incorrectly set or erratic in operation
-2 Leak in refrigeration system
resulting in little or no refrigeration
1 Adjust or replace expanSion valve
2 Pump down system or remove refrigerant charge repair leak evacuate and recharge
3 Excessive oil in system 3 Drain compressor to proper oil leyel pump down and flush system
4 Thermostat set too high taulty
or 4 Adiust thermostat or replace
Product dispenses slOWly out dispensing head
1 Reverse rotation 1 Change rotation to clockshywise from front of freezer
2 Dispensing speed adjustshyment boll too far down
2 Adjust bolt upward
3 Pum p problem 3 See pump Trouble-Shooting chart
4 Product too cold 4 See dispensed product too hard pg42
TROUBLE-SHOOTING CHART COMPRESSORICONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor will not start -hums intermittently (cycling on oyerload)
1 Improperly wired
2 Low line Yoltage
3 Open starting capacitor (single phase only)
4 High discharge pressure
1 Check wiring against diagram
2 Ask power company to increase YOltage to not less than 10 below nameplate rating or install transformer Check for inadequate wire size
3 Replace starting capacitor
4 CheCK water regulating valve setting Check water or air condenser and clean if necessary Make sure disshycharge shut-oft valve is open
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor starts but remains 1 Low line voltage 1 Ask power company to in start windings increase voltage to not less (Single phase only) than 10 below nameplate
rating or install transrormer
2 Improperly wired 2 Check wiring against drawing Check wire size
3 Running capacitor shorted 3 Check by disconnecting running capacitor
4 Starting capacitor weak 4 Check capacitor replace
5 High disCharge pressure 5 Check water regulating valve check water or air condenser and clean il necessary Check discharge shut-off valve
Starter burned out 1 Low line voltage 1 Ask power company to inshycrease voltage to not less than 10 below nameplate rating or install transformer
2 Excessive line voltage 2 Ask power company to reduce voltage to maximum of 10 over nameplate rating
Starting capacitors burn out 1 Voltage 100 low 1 Ask power company to (Single phase only) increase voltage to not less
than 10 below nameplate rating or install translonmer
2 Improper capacitor 2 Replace capacitor with properly rated capacitor as listed in manual
Running capacitors burn out 1 Excessive line voltage 1 Ask power company to reshy(Single phase only) duce line voltage to not more
than 10 above rating 01 motor
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
45
46
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Unit operates long or continuously
1 Shortage of gas
2 Dirty condenser
3 Moisture in system
4 Compressor failing
1 Repair leak and recharge
2 Clean condenser
3 Evacuate and recharge system
4 Check compressor lor proper pressures If inadequate replace compressor
Head pressure too high 1 Refrigerant overcharge
2 Air in system
3 Dirty condenser (air cooled)
4 Unit location too warm (air cooled)
5 Restricted water cooled condenser
6 Water turned off or defective
1 Purge system
2 Purge system evacuate and recharge
3 Clean condenser
4 Relocate unIt away from restriction Place nothing against back or on top of unit
5 Clean or replace condenser
6 Turn on water Or replace water regulating valve regulating valve
Head pressure too low 1 Shortage 01 refrigerant 1 Repair leak and recharge
2 Water regulating valve open 2 Adjust regulating valve too wide
Water 1I0wing through water 1 Water regulating valve 1 Replace water regulating valve waste line when unit is not in operation
defective
Noisy compressor 1 Tubing raUle 1 Bend tubes away from contact
NOTE Refer to warranty card prior to compressor replacement
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING DPR PUMP
TROUBLE PROBABLE CAUSE REMEDY
Pump will not run 1 Pump cover removed 1 Install pump cover
2 Pressure switch actuating 2 Free bulton-check spring and
bulton stuck open (in) pressure switch alignment
3 Pressure switch burned out 3 Replace pressure switch
4 Starting switch in motor bad 4 Install new starting switch
5 Motor burned out 5 Replace motor
6 Circuit breaker kicked out 6 Allow to re- set Replace it or faulty circuit breaker will not
automatically re-set
Motor runs-cam drive plate 1 Loose cam drive plate 1 Tighten set screw in cam will not turn drive plate Check woodruff key
2 Gear stripped 2 Replace gear
Pump will not shut off Mix 1 Pressure swilch actuating 1 Free button-check pressure shoots out pressure relief bulton stuck closed (out) switch alignment
2 Pressure switch stuck in 2 Replace pressure switch closed position
3 Pressure switch assy out 3 Using pressure gauge adjust of adjustment pressure
4 Dirty or plugged diaphragm 4 Disassemble and clean housing (Ref 42) housing
5 Defective O-Ring on 5 Replace O-Ring pressure relief piston
Pump will not prime 1 Insufficient supply of mix 1 Replenish mix supply
2 Piston O-ring defective-no 2 Replace piston O-Ring and suction lubricate
3 Washer valve not sealing 3 Replace washer valve DO NOT LUBRICATE
Pump primes No pressure in 1 Sleeve (Rei 29) not sealing 1 Replace sleeve DO NOT cylinder properly LUBRICATE
2 Loose hose connection on 2 Install or tighten hose clamp pump valve housing (Ref 27)
Mix shoots out Of air intake line 1 Washer valve (Ref 25) 1 Replace washer valve-DO not sealing properly NOT LUBRICATE
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOfT SERVE bull SHAKE bull SLUSH
47
48
TROUBLE-SHOOTING DPR PUMP
Too much air overrun too high-popping problems
Product dispenses slowly out of disPenSing head
1 Air meter too large (Ref 45)
2 Air leak befween mix conshytainer and mix inlet
3 Air line hose crackedshysucking air (Ref 44)
4 Pump pressure too lowshycylinder not full
1 Pump pressure too low
2 PrOduct too cold
3 Low overrun
Diaphragm housing leaking mix 1 Diaphragm housing loose
2 Diaphragm defective
Piston drive assy noisy 1 Bushing bearing worn
2 Defective gear in gear motor
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SIfAKE bull SLUSH
REMEDY
1 Replace washer valve-DO NOT LUBRICATE
2 Install clamp on hose
1 Replace O-Ring and LUBRIshyCATE
1 Clean or replace air meter
2 Replace tube
1 Install smaller air meier
2 Repair as needed
3 Replace air line hose
4 Using pressure gauge adjust pressure switch
1 Using pressure gauge adjust pump pressure
2 Check product temperatureshyshould be about 18 F
3 Check meter-if plugged-clean
1 Tighten wing nuls (Ref 41)
2 Replace diaphragm (Ref 43)
1 Replace bushing bearing (Ref 19)
2 Replace gear
TROUBLE
Mix inlet hose loses prime
Mix on top of piston
PROBABLE CAUSE
1 Washer valve (Ref 25) not sealing properly
2 Mix inlet hose loose
1 Piston O-Ring leaking (Ref 22)
No Air (Overrun) 11 Ai r meter plugged (Ref I 45)
2 Curved air tube pinched
--
DPR PUMP aI
PART NO 199019(i) PART NO 199020 reg DIAPHRAGM RUBBER SLEEVE
PART NO159295 PART NO 159282reg O-RING O-RING0
PART NO 160581reg O-RING
o PART NO PART NO
PART NO199011() 160611(8) 160582 WASHER VALVE O-RING O-RING
PISTON
cJ
DIAPHRAGM HOUSING
CYLINDER
VALVE HOUSIN6 ASSEMBLY
PUUPOUTLET
DRAIN PORT
I PHNO309-755-4553 O-RING CHART HCDUKEampSONINC I
1 I84Z08 SOFT SERVE DISPENSING HEADS I
o PART NO 1605620
PAR~159--1b
PART NO PART NO 1605841 59295()
I PHNO 309-755-4553 O-R ING CHART HCDUKEampSONINC I
- Cover
- Table of Contents
- Safety
- Uncrating amp Inspection13
- Explanation of Electrical Controls
- Operation of Machine
- General Information
- Maintenance amp Adjustment
- Parts Breakdowns
- Trouble-Shooting Charts
- O-ring Charts
-
PANEL BREAKDOWN - 917CAB
~--~
3
REF PART No 1A 114544 1B 112991 2A 136075 2B 136102
3A 137027 3A 137028
3A 136105 3B 136103
3B 134817 4 134818
4 136101 5A 114780
5A 113570 5B 112967
6 112960 7 133291
24 A 917CAB only
I
dJ
DESCRIPTION Frame ssmiddoty Frame ASsmiddoty Lower Side Panel Lower Side Panel LH Side Panel RH Side Panel Upper Side Panel Upper Side Panel Upper Side Panel Rear Panel Rear Panel Top Cover ASsmiddoty Top Cover ASsmiddoty Top Cover ASsmiddoty Filler Panel ASsmiddoty Top Filler Strip
B bull 44 CAB only
~
[At 16 lt0
REF 8
9 10 11 12 12A 13
14 15 16 16A
Air Cooled only
PART No DESCRIPTION 132687 Dispense Panel 134247-01 Dispense Panel Cab-W
Drip Tray (See Pg 35) 114260-01 Door Assmiddoty wIHinges 132444-01 Left Hand Filler Strip 162045 Upper Hinge 162052 Spring LH 162046 Lower Hinge 160026 Screw 160020 Bolt 160139 Washer 110205 Syrup Jar Enclosure 160563-01 Door Gasket 01-Groove) 159174 Drip Tray Button 160293 Clip for Button
Water Cooled only
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
~~
1 ~~o ~o
)
cp I
L~
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 114538 Frame Assy 10 162045 bull Upper Hinge 2 136289 Side Panel LH lOA 162052 Spring LH 3 136313 Rear Panel 11 162046 Lower Hinge 4 114006 Top Panel AC llA 160026 Screw 4A 114428 Top Panel WC l1B 160020 Bolt 4B 114157 Top Panel AC Remote l1C 160139 Washer 5 113983 Front Panel Assy 927CAB 12 136216 Side Panel RH 5A 113985 Front Panel Assy 957cAB 13 160563 Door Gasket (V-Groove) 6 130021 Rear Corner Channel RH 14 159174 Drip Tray Button 6A 135254 Rear Corner Channel LH 14A 160293 Clip for Button 7 137228 Dispensing Panel 162108 Stop Pin (Screw In) 8 Drip Tray (See Pg 35) 136199 Door Pull 9 114260 Door Assy wHinges
25
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
SOFT SERVE CAB ELECTRICAL BOX
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 Contactor (Order By Freezer 5 150463 Selector Switch
Serial Number) 6 159235 Toggle Switch (Pump) 2 Overload (Order By Freezer 7 150456 Spigot Switch
Serial Number) 7A 136124 Button - Spigot Switch 2A Heater Coil (Order By Freezer 7B 162302 Spring - Spigot Switch
Serial Number) 8 150553 Pilot Light - Amber 3 Starter (Order By Freezer 9 150552 Pilot Light - Red
Serial Number) 10 161026 Thermometer (Not Shown) 4 150208 Timer
26
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Pointed u
- - --- -
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prifllcl If USA
In-
ca ~ Q ltC wr w I
Zshy
2B
()
w gta w ()
tshy~ o ()
SOFT-SERVE - SINGLE HEAD CAB
REF PART No 1 151351
2 3 4 5 6 151044
151052 7
8 155039 9 155400 10 155117
11 151084
12A 159021 13 155401 13A 155423 14 155403 15 155422
16 154976 16 154975 17 159203 18 155051 19 112901
155410 20 155044
151348
DESCRIPTION Capacitor Relay Assembly (single phase)
150247 Start Capacitor
150249 Run Capacitor 150245 Relay Motor Capacitors (order by freezer serial no) Gear Reducer (see gear reducer breakdown page 36) Driven Pulley (order by freezer serial no) Belt (order by freezer serial no) Motor 1-phase 230 volt Motor 3-phase 208230 volt Driver Pulley (order by freezer serial no)
Water Condenser Automatic Expansion Valve (Cylinder) Air Condenser
Condenser Fan Motor
Condenser Fan Blade High Pressure Cut-Out shyHigh Pressure Cut-Out shyLow Pressure Cut-Out Solenoid Valve
Compressor 230160
AC WC
Compressor 208-230360 Sight Glass Drier (38) Receiver Tank Assembly Water Valve (not shown) Service Valve Compressor Mounting Kit
Note I) lt0 For All 50-Cycle Freezers Order By Freezer Serial Number
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Printad I usA
30
c W -I o o o a w ~ 3
III
~ W -I III J o C
w gta w en u o en
SOFT-SERVE - DOUBLE CAB - WATER COOLED REF PART No DESCRIPTION 1 155026 Water Condenser (B-side) 1 A 155039 Water Condenser (A-side) 2 159203 Sight Glass 3 155051 Drier (38) 4 155400 Automatic Expansion Valve (Cylinder) 5 Gear Reducer (see gear reducer breakdown page 36) 6 155410 Water Valve 7 155423 High Pressure Cut-Out 8 155403 Low Pressure Cut-Out 9 154976 Compressor 230160
151351 Capacitor Relay Assembly (Single Phase) 150247 Start Capacitor 150249 Run Capacitor 150245 Relay
9A 154975 Compressor 208-230360~-11 NOT USED ON THIS MODEL 12 155442 Low Temp Control 13 Driven Pulley (order by freezer serial no) 14 Belt (order by freezer serial no) 15 Driver Pulley (order by freezer serial no) 16 155422 Solenoid Valve 17 151044 Motor 1 phase 230 volt 17A 151052 Motor 3 phase 208230 volt 18 Motor Capacitors single phase only (order by freezer serial no)
Note For All 50-Cycle Freezers Order By Freezer Serial Number
cgt
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH _InU5A
32
c W J o o o -a oCt
aI oCt o W I m ) o c w gta w Ch t--LL o Ch
SOFTmiddotSERVE bull DOUBLE CAB - AIR COOLED REF PART No 1 155120 2 159020 3 151080 4 155400 5 6 159203 7 155051 8 112901 9 151044 9A 151052 10 11 12 14 154976
14A 154975 15 155401 16 155403 17 155443 18 155442 19
21 155422
DESCRIPTION Condenser Fan Blade Fan Motor Automatic Expansion Valve (Cylinder) Reducer (see gear reducer breakdown page 36) Sight Glass Drier Receiver Assembly Motor 1-Phase 230 Volt Motor 3-Phase 208230 Volt Driven Pulley (order by freezer serial no) Belt (ordr by freezer serial no) Driver Pulley (order by freezer serial no) Compressor 230160 151351 Capacitor Relay Assembly (Single Phase)
150247 Start Capacitor 150249 Run Capacitor 150245 Relay
Compressor 208-230360 High Pressure Cut-Out Low Pressure Cut-Out Cabinet Thermostat Low Temp Thermostat NOT USED ON THIS MODEL Motor Capacitors single phase only (order by freezer serial no) Solenoid Valve
Note For All 50-Cycle Freezers Order By Freezer Serial Number
Vl Vl
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prinled In USA
CAB PARTS BREAKDOWN
REF PART No DESCRIPTION PART No DESCRIPTION 1 155109 Cabinet Coil 136297 Condensate Pan (Not Shown) 1A 155113 Motor Cabinet Fan 196092 Mix Tank 7-12 Gal 1B 155099 Fan Blade Cabinet Coil 113997 Front Lid Mix Container
7-12 Gal 136248-01 Rear Lid Mix Cont 7-12 Gal
10 155416 CAB Automatic Expansion 130092 Mix Tube Valve 196028 Mix Tank 10 Gal
137119 Probe 11 -1 4 shy1E 155114 Fan Grill amp Bracket 7-12 Gal Container 1F 155116 Knob 137119-01 Probe 10-34 shy2 113898 DPR Pump Less Motor 7-12 amp 10
(see pump breakdown Gal Container pg 38) 137119-02 Probe 10-14 shy
3 196061 Mix Hose (sold by the foot) 10 Gal Container 4 150416 Door Switch 137120 Base Probe Mtg 4A 114630 Actuator Door Switch 160500 O-Ring
(Not Shown) 114572 Hose Clamp (Not Shown) 5 150527 Retractable Cordset 34
MIg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prlmd UsA
MERCHANDISING ASSY
PART No 115108 115107
PART No
196107-01 196108-01 114610 114608 115132 199030
PART No 162105 162106 112978 158004 158021 158022 158078 158000 158056 158000A 158014 158014A 161000 158049
DESCRIPTION 2S Merchandiser-927-957-978CAB 24 Merchandiser-917CAB
DRIP TRAY
DESCRIPTION
24 Drip Tray-917CAB 26- Drip Tray-927-957-978CAB 24 Tray Insert-917CAD 26 Tray Insert-978CAB-927CAB 26 Tray Insert-957CAB Rubber Bumper (only)
DESCRIPTION Caster With Brake Caster Without Brake Leg-6 4 Cylinder Brush Mix Hose Brush 58 Dia w6 Ft Handle 14 Pump Brush Drain Tube Brush Petrol Gel (12 tube carton) Petrol Gel (6 tube carton) Pe1rol Gel (per tube) Stera Sheen (per case) Stera Sheen (per jar) Pocket Thermometer 1 Dial Z32 Overrun Scale
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SNAKE bull SLUSH
35
36
GEAR REDUCERS Order By Freezer Serial Number
Model 3 CB
153345 5-1 Ratio B side 153004 High Speed Cup ~ (2 ea required) 153005 High Speed Bearing (2 ea required) 153008 Slow Speed Cup (2 ea required) 153009 Slow Speed Bearing (2 ea required) 153052 Slow Speed Seal (2 ea required) 153054 High Speed Seal (2 ea required) 153313 Brass Gear 5-1 Ratio 153336 Slow Speed Shaft Only 5-1 Ratio 153316 Worm Gear On Shaft 5-1 Ratio 114873 Gasket Set
Model 4 CB
153342 10-1 Ratio A side 153343 10-1 Ratio B side
153014 High Speed Cup (2 ea required) 153015 High Speed Bearing (2 ea required) 153011 Slow Speed Cup (2 ea required) 153012 Slow Speed Bearing (2 ea required) 153051 Slow Speed Seal (2 ea required) 153053 High Speed Seal (2 ea required) 153349 Brass Gear 10-1 Ratio 153339 Slow Speed Shaft OnIy 10-1 Ratio 153347 Worm Gear on Shaft 10-1 Ratio 114874 Gasket Set
Winlwin Model
153341 Wintwin 10-1 Ratio A and B Side
153014 High Speed Cup (2 ea required) 153015 High Speed Bearing (2 ea required) 153011 Slow Speed Cup (2 ea required) 153012 Slow Speed Bearing (2 ea required) 153051 Slow Speed Seal (2 ea required) 153053 High Speed Seal (2 ea required) 153349 Brass Gear 153350 Slow Speed Shaft Only 153348 Worm Gear on Shaft 11 4874 Gasket Set
158055 Gear Reducer OU 51001
Drive Coupling (Order By Machine Serial Number)
Mfg by H C DUKE amp SON INC bull 2115 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
917 amp 927 Beater Shaft Assembly
957 Beater Shaft
Item Part No Description
1 196079 Bushing-Cylinder 2 114752 Beater-Assy Long (Shaft) 3 137334 Blade-Scraper Soft Serve 4- 160500 O-Ring (Shaft Seal) 5- 133098 Bushing (Washer-Shaft Seal) 6 160557 Seal-Beater Shaft
-Items 4-6 111875 Seal-Assy Shaft (Complete)
31
1 113438 2 196079 3 137334 4- 160500 5- 133098 6 160557
-Items 4-6 111875
Shaft-Assy Beater Bushing-Cylinder Blade-Scraper O-ring (Shaft Seal) Washer-Shaft Seal (Bushing) Seal-Beater Shaft (Cup)
Seal-Assy Shaft (Complete)
ao
DISPENSING HEAD
16
r
Q
--~
-----_
REF PART No DESCRIPTION Tl3o 6 119928- Door Assembly shy Complete (Items 7-14) 11637- 7 196688 Door shy Less Parts
a 134921 Spigot shy Less Extension 9 134922 Handle Extension shy Spigot
10 162624 Handle 11 159295 OmiddotRings shy Spigot (Lots of 5)12 159309 O-ring shy 4 - Door 13 196066 Air Relief Screw 14 160621 a-Ring shy Air Relief Screw (Lots of 5)15 136126 Rod - Spigot Switch shy 917 8 927 16 136798 HMdKnob
38
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illmols 61244
SUPERIOR QUAUlY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
Duke Soft Serve Freezer Models 917R and 927RN
5 -______
7
6
UPDATEDDispense Head Assembly
Item Part No
115130 1 116321 2 160583 3 115129 4 160562 5 136126 6 134921 SA 162624 68 134922 7 159295 8 160584 9 162625 9A 114341 10 196185 10A 137870 108 136713
116410
Includes items 1-4 6-8
Description
Head-Assy Dispense (Complete) Head-Assy wActualor O-ring (Head-4-inch) Bleeder-Assy (Air Relief Plug) O-ring (Bleeder-Assy) Rod-Spigot Switch Spigot-long Single Handle-Black Tapered Handle-Spigot (Stainless Steel) O-ring (Spigot) O-ring (Extension) Knob-Hand Stud-Assy Cylinder 1-15116 inch (not shown) Nouie-Slar Adapter (accessory) Adapter-Yogurt Nozzle (not shown) Extension-Spigot (accessory-cake not shown) Kit-Dispense Head Switch
( Use only original or authorized replacement parts with this freezer )
DISPENSING HEAD
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH uu
REF PART No 114765
1 196082 2 114313 3 137018 5 136618 6 162626 8 134499 9 162625
10 115129 11 136794 12 159309 13 159295 14 160562 15 136713 16 160584
DESCRIPTION Door Assy-Complete Door-Less Parts Spigot Assy-Side Spigot Only-Center Extension Only-Center Handle Stud-Handle Stop Hand Knob Air Re1ief-Assy Rod-Spigot Switch O-Ring-4-Door O-Ring-Spigot O-Ring-Air Relief Extension-Spigot a-Ring
39
40
PUMP MOTOR AND HOUSING ASSEMBLY SAFETY SWITCH ASSEMBLY
PRESSURE SWITCH ASSEMBLY ijreg~
I
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH IIIUaA
CAB DPR PUMP BREAKDOWN
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 196091 Pump Base 46 114009 Pump Cover 2 136088 Pump Support 47 113464 Base Bracket Assembly 3 150784 Strain Relief Bushing 48 135725 Stud 1-78 4 Power Cord 49 160131 516 Flatwasher 5 160075 10-24 x 38 Screw 50 160293 Speed Clip 6 135416 Cover Electric Box 51 135724 Button 7 160141 14 Lockwasher 52 160140 10 Lockwasher 8 160491 14-20 x 34 Socket Screw 53 135726 Stud 3 9 113497 Motor Cord 18-3 SJT 54 160109 10-24 Hex Nut 10 151127 Motor 40 RPM Soft Serve 55 135729 Switch Actuator 11 160023 14-20 x 1 Screw 56 135731 Stop - Max Pressure 12 153317 Half Moon Key 57 162315 Spring - Soft Serve 13 112925 Cam Drive Plate Assembly 58 160138 10 Flat Washer 14 160495 14-20 x 14 Set Screw 59 160304 10-24 Stop Nut 15 160369 Pin 60 150456 Pressure Switch 16 134614 Swing Clamp 61 135744 Insulator - Fiber 17 134521 Adjusting Clamp 62 160381 6-32 x 1 Socket Screw 18 160488 Thumb Screw 63 160393 6 Flatwasher 19 134604 Bearing Bushing 64 160146 6 Lockwasher 20 134602 Connecting Rod 65 160309 6-32 Hex Nut 21 134601 Piston 66 160006 6-32 x 14 Screw 22 159295 O-Ring 67 160001 8-32 x 38 Screw 23 134603 Wrist Pin 68 160470 8 Lockwasher 24 136089 Cylinder 69 150481 Circuit Breaker 25 199011 Washer Valve 70 135727 Switch Bracket 26 159282 O-Ring 71 136311 Spacer - Cover Switch 27 113839 Pump Valve Housing 72 160028 Truss Head Screw
Assembly (Metal) 14-20 x 34 SST 28 160582 O-Ring 73 160141 Lockwasher 14 29 199020 Sleeve Rubber 74 160104 Hex Nut 14-20 30 135793 Retainer Clip 75 136312 Button Guard 31 135791 Adapter Hose Outlet 76 160020 Hex Hd Cap Screw 32 160581 O-Ring 14-20 x 1 SST 33 135790 Piston 77 113869 Switch Bracket 34 162308 Spring Soft Serve 78 136110 Button Cover Switch 35 135792 Drain Port 79 162314 Spring 36 160611 O-Ring 80 150456 Switch Pump Safety 37 135896 Hose 24 81 135004 Switch Cover 38 160738 Hose Clamp 82 160296 Screw RH 39 136288 Keeper 6-32 x 1-14 40 160554 O-Ring 83 160146 Lockwasher 6 41 160368 Wing Nut Int Tooth 42 130054 Diaphragm Housing 84 160393 Flatwasher 6 43 199019 Diaphragm 85 160309 Hex Nut 6-32 44 196074 Air Tube-Curved 86 114572 Hose Clamp 45 163433 Air Meter - 20 87 160048 14-20 x 12 TRHM
(other sizes available) 88 160308 6-32 x 516 RDHM 89 114581 Circuit Breaker Bracket
Not Shown 90 163109 Stop Pivot 112791 DPR Pressure Gauge
41
Mfg by H C DUKE amp SON INC 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
42
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Unit does not operate 1 Fuse blown at main disconshy 1 Check fuse size check for low nect voltage if not within 10 of
nameplate rating install transformer or call power company
2 Beater motor out on overload 2 Press starter reset button and check for low voltage Check producllemperalure and overrun
3 Disconnected or broken wife 3 Check wiring and wire connecshyin electrical circuit lions repair or replace lead
wires as necessary
4 Faulty selector switch 4 Replace selector switch
5 Out on high pressure 5 Check for low waler supply or dirty air conden ser
6 Out on low pressure 6 Check limit control and freon charge
Compressor does not operate f Troubte in compressor con- I Refer to Trouble-Shootingshyor operates improperly densing circuit Compressor I Condensing
Circuit
2 Faulty capacitor assembly 2 Replace capaCitor assembly (Single phase only)
3 Faulty contactor 3 Replace contaclOr or pOints
Compressor operates but 1 Loose con neclion at motor 1 Tighten connection beater motor does not starter coil (electrical box)
2 Open starter coil 2 Replace coil
3 Faulty capacitor assembly 3 Replace capaCitor assembly (Single phase only)
Dispensed product too hard 1 Cylinder themostat erratic 1 Adjust thermo slat or replace or set too low
2 Faulty time delay relay 2 Replace time delay relay
3 Solenoid valve leaking 3 Replace solenoid valve
4 Low suction pressure 4 See chart on page 15 for adshyjustments
Leaking of mix from rear housshy 1 Damaged bealer shalt seal 1 Replace shaft seal or O-ring ing discharge tube to drip tray inside seal assy
Mig by H C DUKE amp SON INC bull 2116 Eighlh Avenue Easl Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Mix leaking at dispensing head 1 Faulty 4 O-Ring
2 Head not properly installed
1 Replace 4 O-Ring
2 Install head properly
Mix sours in cabinet 1 Cabinet thermostat setting too high
2 Cabinet thermostat detective
3 Cabinet solenoid valve deshyfective
4 Cabinet switch defective
5 Beater motor out on overshyload (cab side)
1 Adjust thermostat
2 Replace thermostat
3 Replace coil or solenoid
4 Replace cabinet switch
S Reset overload for beater motor See pg 42 unit does not operate
Cabinet too COld
Machine runs continually and Product continues to get colder
Compressor operates only when dispensing
Unit runs conMuously Product does nol reach 180 F temperature
6 Door sWitch defectIVe
1 Cabinet thermostat setting too low
2 Defective thermostat
3 Cabinet solenoid stuck open
4 Cabinet expansion valve set too low
1 Plunger switch out of adjustshyment
2 Su ction pressure too low
3 Defective plunger switch
4 Plunger switch rod engaged
5 Faulty time delay relay
6 Starter or relay contacts stuck
7 Faulty thermostat or bulb not deep enough in well
6 Replace door SWitch
1 Adjust thermostat
2 Replace thermostat
3 Replace solenoid
4 Adjust cabinet expansion valve (See pg 15)
1 Adjust plunger switch
2 Adjust expansion valve and check freon charge
3 Replace plunger switch
4 Close plunger completely
5 Replace time delay relay
I 6 Check contacts i
7 Check bulb location or replace thermostat
1 Cylinder themostat setting 1 Adjust thermostat or replace too high or thermostat deshyfective
1 Trouble in compressor I condensing system
2 ExpanSion valve setiing is too high
3 Low on refrigeranl
1 See Trouble-Shooling-CompressorI Condensing circuit
2 Adjust expansion valve
3 Check and repair leak and recharge
1
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE SLUSHbull
43
44
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Dispensed product too soft (Product temperature above 21 0 F)
1 Automatic expansion yalve incorrectly set or erratic in operation
-2 Leak in refrigeration system
resulting in little or no refrigeration
1 Adjust or replace expanSion valve
2 Pump down system or remove refrigerant charge repair leak evacuate and recharge
3 Excessive oil in system 3 Drain compressor to proper oil leyel pump down and flush system
4 Thermostat set too high taulty
or 4 Adiust thermostat or replace
Product dispenses slOWly out dispensing head
1 Reverse rotation 1 Change rotation to clockshywise from front of freezer
2 Dispensing speed adjustshyment boll too far down
2 Adjust bolt upward
3 Pum p problem 3 See pump Trouble-Shooting chart
4 Product too cold 4 See dispensed product too hard pg42
TROUBLE-SHOOTING CHART COMPRESSORICONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor will not start -hums intermittently (cycling on oyerload)
1 Improperly wired
2 Low line Yoltage
3 Open starting capacitor (single phase only)
4 High discharge pressure
1 Check wiring against diagram
2 Ask power company to increase YOltage to not less than 10 below nameplate rating or install transformer Check for inadequate wire size
3 Replace starting capacitor
4 CheCK water regulating valve setting Check water or air condenser and clean if necessary Make sure disshycharge shut-oft valve is open
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor starts but remains 1 Low line voltage 1 Ask power company to in start windings increase voltage to not less (Single phase only) than 10 below nameplate
rating or install transrormer
2 Improperly wired 2 Check wiring against drawing Check wire size
3 Running capacitor shorted 3 Check by disconnecting running capacitor
4 Starting capacitor weak 4 Check capacitor replace
5 High disCharge pressure 5 Check water regulating valve check water or air condenser and clean il necessary Check discharge shut-off valve
Starter burned out 1 Low line voltage 1 Ask power company to inshycrease voltage to not less than 10 below nameplate rating or install transformer
2 Excessive line voltage 2 Ask power company to reduce voltage to maximum of 10 over nameplate rating
Starting capacitors burn out 1 Voltage 100 low 1 Ask power company to (Single phase only) increase voltage to not less
than 10 below nameplate rating or install translonmer
2 Improper capacitor 2 Replace capacitor with properly rated capacitor as listed in manual
Running capacitors burn out 1 Excessive line voltage 1 Ask power company to reshy(Single phase only) duce line voltage to not more
than 10 above rating 01 motor
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
45
46
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Unit operates long or continuously
1 Shortage of gas
2 Dirty condenser
3 Moisture in system
4 Compressor failing
1 Repair leak and recharge
2 Clean condenser
3 Evacuate and recharge system
4 Check compressor lor proper pressures If inadequate replace compressor
Head pressure too high 1 Refrigerant overcharge
2 Air in system
3 Dirty condenser (air cooled)
4 Unit location too warm (air cooled)
5 Restricted water cooled condenser
6 Water turned off or defective
1 Purge system
2 Purge system evacuate and recharge
3 Clean condenser
4 Relocate unIt away from restriction Place nothing against back or on top of unit
5 Clean or replace condenser
6 Turn on water Or replace water regulating valve regulating valve
Head pressure too low 1 Shortage 01 refrigerant 1 Repair leak and recharge
2 Water regulating valve open 2 Adjust regulating valve too wide
Water 1I0wing through water 1 Water regulating valve 1 Replace water regulating valve waste line when unit is not in operation
defective
Noisy compressor 1 Tubing raUle 1 Bend tubes away from contact
NOTE Refer to warranty card prior to compressor replacement
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING DPR PUMP
TROUBLE PROBABLE CAUSE REMEDY
Pump will not run 1 Pump cover removed 1 Install pump cover
2 Pressure switch actuating 2 Free bulton-check spring and
bulton stuck open (in) pressure switch alignment
3 Pressure switch burned out 3 Replace pressure switch
4 Starting switch in motor bad 4 Install new starting switch
5 Motor burned out 5 Replace motor
6 Circuit breaker kicked out 6 Allow to re- set Replace it or faulty circuit breaker will not
automatically re-set
Motor runs-cam drive plate 1 Loose cam drive plate 1 Tighten set screw in cam will not turn drive plate Check woodruff key
2 Gear stripped 2 Replace gear
Pump will not shut off Mix 1 Pressure swilch actuating 1 Free button-check pressure shoots out pressure relief bulton stuck closed (out) switch alignment
2 Pressure switch stuck in 2 Replace pressure switch closed position
3 Pressure switch assy out 3 Using pressure gauge adjust of adjustment pressure
4 Dirty or plugged diaphragm 4 Disassemble and clean housing (Ref 42) housing
5 Defective O-Ring on 5 Replace O-Ring pressure relief piston
Pump will not prime 1 Insufficient supply of mix 1 Replenish mix supply
2 Piston O-ring defective-no 2 Replace piston O-Ring and suction lubricate
3 Washer valve not sealing 3 Replace washer valve DO NOT LUBRICATE
Pump primes No pressure in 1 Sleeve (Rei 29) not sealing 1 Replace sleeve DO NOT cylinder properly LUBRICATE
2 Loose hose connection on 2 Install or tighten hose clamp pump valve housing (Ref 27)
Mix shoots out Of air intake line 1 Washer valve (Ref 25) 1 Replace washer valve-DO not sealing properly NOT LUBRICATE
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOfT SERVE bull SHAKE bull SLUSH
47
48
TROUBLE-SHOOTING DPR PUMP
Too much air overrun too high-popping problems
Product dispenses slowly out of disPenSing head
1 Air meter too large (Ref 45)
2 Air leak befween mix conshytainer and mix inlet
3 Air line hose crackedshysucking air (Ref 44)
4 Pump pressure too lowshycylinder not full
1 Pump pressure too low
2 PrOduct too cold
3 Low overrun
Diaphragm housing leaking mix 1 Diaphragm housing loose
2 Diaphragm defective
Piston drive assy noisy 1 Bushing bearing worn
2 Defective gear in gear motor
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SIfAKE bull SLUSH
REMEDY
1 Replace washer valve-DO NOT LUBRICATE
2 Install clamp on hose
1 Replace O-Ring and LUBRIshyCATE
1 Clean or replace air meter
2 Replace tube
1 Install smaller air meier
2 Repair as needed
3 Replace air line hose
4 Using pressure gauge adjust pressure switch
1 Using pressure gauge adjust pump pressure
2 Check product temperatureshyshould be about 18 F
3 Check meter-if plugged-clean
1 Tighten wing nuls (Ref 41)
2 Replace diaphragm (Ref 43)
1 Replace bushing bearing (Ref 19)
2 Replace gear
TROUBLE
Mix inlet hose loses prime
Mix on top of piston
PROBABLE CAUSE
1 Washer valve (Ref 25) not sealing properly
2 Mix inlet hose loose
1 Piston O-Ring leaking (Ref 22)
No Air (Overrun) 11 Ai r meter plugged (Ref I 45)
2 Curved air tube pinched
--
DPR PUMP aI
PART NO 199019(i) PART NO 199020 reg DIAPHRAGM RUBBER SLEEVE
PART NO159295 PART NO 159282reg O-RING O-RING0
PART NO 160581reg O-RING
o PART NO PART NO
PART NO199011() 160611(8) 160582 WASHER VALVE O-RING O-RING
PISTON
cJ
DIAPHRAGM HOUSING
CYLINDER
VALVE HOUSIN6 ASSEMBLY
PUUPOUTLET
DRAIN PORT
I PHNO309-755-4553 O-RING CHART HCDUKEampSONINC I
1 I84Z08 SOFT SERVE DISPENSING HEADS I
o PART NO 1605620
PAR~159--1b
PART NO PART NO 1605841 59295()
I PHNO 309-755-4553 O-R ING CHART HCDUKEampSONINC I
- Cover
- Table of Contents
- Safety
- Uncrating amp Inspection13
- Explanation of Electrical Controls
- Operation of Machine
- General Information
- Maintenance amp Adjustment
- Parts Breakdowns
- Trouble-Shooting Charts
- O-ring Charts
-
~~
1 ~~o ~o
)
cp I
L~
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 114538 Frame Assy 10 162045 bull Upper Hinge 2 136289 Side Panel LH lOA 162052 Spring LH 3 136313 Rear Panel 11 162046 Lower Hinge 4 114006 Top Panel AC llA 160026 Screw 4A 114428 Top Panel WC l1B 160020 Bolt 4B 114157 Top Panel AC Remote l1C 160139 Washer 5 113983 Front Panel Assy 927CAB 12 136216 Side Panel RH 5A 113985 Front Panel Assy 957cAB 13 160563 Door Gasket (V-Groove) 6 130021 Rear Corner Channel RH 14 159174 Drip Tray Button 6A 135254 Rear Corner Channel LH 14A 160293 Clip for Button 7 137228 Dispensing Panel 162108 Stop Pin (Screw In) 8 Drip Tray (See Pg 35) 136199 Door Pull 9 114260 Door Assy wHinges
25
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
SOFT SERVE CAB ELECTRICAL BOX
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 Contactor (Order By Freezer 5 150463 Selector Switch
Serial Number) 6 159235 Toggle Switch (Pump) 2 Overload (Order By Freezer 7 150456 Spigot Switch
Serial Number) 7A 136124 Button - Spigot Switch 2A Heater Coil (Order By Freezer 7B 162302 Spring - Spigot Switch
Serial Number) 8 150553 Pilot Light - Amber 3 Starter (Order By Freezer 9 150552 Pilot Light - Red
Serial Number) 10 161026 Thermometer (Not Shown) 4 150208 Timer
26
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Pointed u
- - --- -
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prifllcl If USA
In-
ca ~ Q ltC wr w I
Zshy
2B
()
w gta w ()
tshy~ o ()
SOFT-SERVE - SINGLE HEAD CAB
REF PART No 1 151351
2 3 4 5 6 151044
151052 7
8 155039 9 155400 10 155117
11 151084
12A 159021 13 155401 13A 155423 14 155403 15 155422
16 154976 16 154975 17 159203 18 155051 19 112901
155410 20 155044
151348
DESCRIPTION Capacitor Relay Assembly (single phase)
150247 Start Capacitor
150249 Run Capacitor 150245 Relay Motor Capacitors (order by freezer serial no) Gear Reducer (see gear reducer breakdown page 36) Driven Pulley (order by freezer serial no) Belt (order by freezer serial no) Motor 1-phase 230 volt Motor 3-phase 208230 volt Driver Pulley (order by freezer serial no)
Water Condenser Automatic Expansion Valve (Cylinder) Air Condenser
Condenser Fan Motor
Condenser Fan Blade High Pressure Cut-Out shyHigh Pressure Cut-Out shyLow Pressure Cut-Out Solenoid Valve
Compressor 230160
AC WC
Compressor 208-230360 Sight Glass Drier (38) Receiver Tank Assembly Water Valve (not shown) Service Valve Compressor Mounting Kit
Note I) lt0 For All 50-Cycle Freezers Order By Freezer Serial Number
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Printad I usA
30
c W -I o o o a w ~ 3
III
~ W -I III J o C
w gta w en u o en
SOFT-SERVE - DOUBLE CAB - WATER COOLED REF PART No DESCRIPTION 1 155026 Water Condenser (B-side) 1 A 155039 Water Condenser (A-side) 2 159203 Sight Glass 3 155051 Drier (38) 4 155400 Automatic Expansion Valve (Cylinder) 5 Gear Reducer (see gear reducer breakdown page 36) 6 155410 Water Valve 7 155423 High Pressure Cut-Out 8 155403 Low Pressure Cut-Out 9 154976 Compressor 230160
151351 Capacitor Relay Assembly (Single Phase) 150247 Start Capacitor 150249 Run Capacitor 150245 Relay
9A 154975 Compressor 208-230360~-11 NOT USED ON THIS MODEL 12 155442 Low Temp Control 13 Driven Pulley (order by freezer serial no) 14 Belt (order by freezer serial no) 15 Driver Pulley (order by freezer serial no) 16 155422 Solenoid Valve 17 151044 Motor 1 phase 230 volt 17A 151052 Motor 3 phase 208230 volt 18 Motor Capacitors single phase only (order by freezer serial no)
Note For All 50-Cycle Freezers Order By Freezer Serial Number
cgt
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH _InU5A
32
c W J o o o -a oCt
aI oCt o W I m ) o c w gta w Ch t--LL o Ch
SOFTmiddotSERVE bull DOUBLE CAB - AIR COOLED REF PART No 1 155120 2 159020 3 151080 4 155400 5 6 159203 7 155051 8 112901 9 151044 9A 151052 10 11 12 14 154976
14A 154975 15 155401 16 155403 17 155443 18 155442 19
21 155422
DESCRIPTION Condenser Fan Blade Fan Motor Automatic Expansion Valve (Cylinder) Reducer (see gear reducer breakdown page 36) Sight Glass Drier Receiver Assembly Motor 1-Phase 230 Volt Motor 3-Phase 208230 Volt Driven Pulley (order by freezer serial no) Belt (ordr by freezer serial no) Driver Pulley (order by freezer serial no) Compressor 230160 151351 Capacitor Relay Assembly (Single Phase)
150247 Start Capacitor 150249 Run Capacitor 150245 Relay
Compressor 208-230360 High Pressure Cut-Out Low Pressure Cut-Out Cabinet Thermostat Low Temp Thermostat NOT USED ON THIS MODEL Motor Capacitors single phase only (order by freezer serial no) Solenoid Valve
Note For All 50-Cycle Freezers Order By Freezer Serial Number
Vl Vl
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prinled In USA
CAB PARTS BREAKDOWN
REF PART No DESCRIPTION PART No DESCRIPTION 1 155109 Cabinet Coil 136297 Condensate Pan (Not Shown) 1A 155113 Motor Cabinet Fan 196092 Mix Tank 7-12 Gal 1B 155099 Fan Blade Cabinet Coil 113997 Front Lid Mix Container
7-12 Gal 136248-01 Rear Lid Mix Cont 7-12 Gal
10 155416 CAB Automatic Expansion 130092 Mix Tube Valve 196028 Mix Tank 10 Gal
137119 Probe 11 -1 4 shy1E 155114 Fan Grill amp Bracket 7-12 Gal Container 1F 155116 Knob 137119-01 Probe 10-34 shy2 113898 DPR Pump Less Motor 7-12 amp 10
(see pump breakdown Gal Container pg 38) 137119-02 Probe 10-14 shy
3 196061 Mix Hose (sold by the foot) 10 Gal Container 4 150416 Door Switch 137120 Base Probe Mtg 4A 114630 Actuator Door Switch 160500 O-Ring
(Not Shown) 114572 Hose Clamp (Not Shown) 5 150527 Retractable Cordset 34
MIg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prlmd UsA
MERCHANDISING ASSY
PART No 115108 115107
PART No
196107-01 196108-01 114610 114608 115132 199030
PART No 162105 162106 112978 158004 158021 158022 158078 158000 158056 158000A 158014 158014A 161000 158049
DESCRIPTION 2S Merchandiser-927-957-978CAB 24 Merchandiser-917CAB
DRIP TRAY
DESCRIPTION
24 Drip Tray-917CAB 26- Drip Tray-927-957-978CAB 24 Tray Insert-917CAD 26 Tray Insert-978CAB-927CAB 26 Tray Insert-957CAB Rubber Bumper (only)
DESCRIPTION Caster With Brake Caster Without Brake Leg-6 4 Cylinder Brush Mix Hose Brush 58 Dia w6 Ft Handle 14 Pump Brush Drain Tube Brush Petrol Gel (12 tube carton) Petrol Gel (6 tube carton) Pe1rol Gel (per tube) Stera Sheen (per case) Stera Sheen (per jar) Pocket Thermometer 1 Dial Z32 Overrun Scale
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SNAKE bull SLUSH
35
36
GEAR REDUCERS Order By Freezer Serial Number
Model 3 CB
153345 5-1 Ratio B side 153004 High Speed Cup ~ (2 ea required) 153005 High Speed Bearing (2 ea required) 153008 Slow Speed Cup (2 ea required) 153009 Slow Speed Bearing (2 ea required) 153052 Slow Speed Seal (2 ea required) 153054 High Speed Seal (2 ea required) 153313 Brass Gear 5-1 Ratio 153336 Slow Speed Shaft Only 5-1 Ratio 153316 Worm Gear On Shaft 5-1 Ratio 114873 Gasket Set
Model 4 CB
153342 10-1 Ratio A side 153343 10-1 Ratio B side
153014 High Speed Cup (2 ea required) 153015 High Speed Bearing (2 ea required) 153011 Slow Speed Cup (2 ea required) 153012 Slow Speed Bearing (2 ea required) 153051 Slow Speed Seal (2 ea required) 153053 High Speed Seal (2 ea required) 153349 Brass Gear 10-1 Ratio 153339 Slow Speed Shaft OnIy 10-1 Ratio 153347 Worm Gear on Shaft 10-1 Ratio 114874 Gasket Set
Winlwin Model
153341 Wintwin 10-1 Ratio A and B Side
153014 High Speed Cup (2 ea required) 153015 High Speed Bearing (2 ea required) 153011 Slow Speed Cup (2 ea required) 153012 Slow Speed Bearing (2 ea required) 153051 Slow Speed Seal (2 ea required) 153053 High Speed Seal (2 ea required) 153349 Brass Gear 153350 Slow Speed Shaft Only 153348 Worm Gear on Shaft 11 4874 Gasket Set
158055 Gear Reducer OU 51001
Drive Coupling (Order By Machine Serial Number)
Mfg by H C DUKE amp SON INC bull 2115 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
917 amp 927 Beater Shaft Assembly
957 Beater Shaft
Item Part No Description
1 196079 Bushing-Cylinder 2 114752 Beater-Assy Long (Shaft) 3 137334 Blade-Scraper Soft Serve 4- 160500 O-Ring (Shaft Seal) 5- 133098 Bushing (Washer-Shaft Seal) 6 160557 Seal-Beater Shaft
-Items 4-6 111875 Seal-Assy Shaft (Complete)
31
1 113438 2 196079 3 137334 4- 160500 5- 133098 6 160557
-Items 4-6 111875
Shaft-Assy Beater Bushing-Cylinder Blade-Scraper O-ring (Shaft Seal) Washer-Shaft Seal (Bushing) Seal-Beater Shaft (Cup)
Seal-Assy Shaft (Complete)
ao
DISPENSING HEAD
16
r
Q
--~
-----_
REF PART No DESCRIPTION Tl3o 6 119928- Door Assembly shy Complete (Items 7-14) 11637- 7 196688 Door shy Less Parts
a 134921 Spigot shy Less Extension 9 134922 Handle Extension shy Spigot
10 162624 Handle 11 159295 OmiddotRings shy Spigot (Lots of 5)12 159309 O-ring shy 4 - Door 13 196066 Air Relief Screw 14 160621 a-Ring shy Air Relief Screw (Lots of 5)15 136126 Rod - Spigot Switch shy 917 8 927 16 136798 HMdKnob
38
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illmols 61244
SUPERIOR QUAUlY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
Duke Soft Serve Freezer Models 917R and 927RN
5 -______
7
6
UPDATEDDispense Head Assembly
Item Part No
115130 1 116321 2 160583 3 115129 4 160562 5 136126 6 134921 SA 162624 68 134922 7 159295 8 160584 9 162625 9A 114341 10 196185 10A 137870 108 136713
116410
Includes items 1-4 6-8
Description
Head-Assy Dispense (Complete) Head-Assy wActualor O-ring (Head-4-inch) Bleeder-Assy (Air Relief Plug) O-ring (Bleeder-Assy) Rod-Spigot Switch Spigot-long Single Handle-Black Tapered Handle-Spigot (Stainless Steel) O-ring (Spigot) O-ring (Extension) Knob-Hand Stud-Assy Cylinder 1-15116 inch (not shown) Nouie-Slar Adapter (accessory) Adapter-Yogurt Nozzle (not shown) Extension-Spigot (accessory-cake not shown) Kit-Dispense Head Switch
( Use only original or authorized replacement parts with this freezer )
DISPENSING HEAD
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH uu
REF PART No 114765
1 196082 2 114313 3 137018 5 136618 6 162626 8 134499 9 162625
10 115129 11 136794 12 159309 13 159295 14 160562 15 136713 16 160584
DESCRIPTION Door Assy-Complete Door-Less Parts Spigot Assy-Side Spigot Only-Center Extension Only-Center Handle Stud-Handle Stop Hand Knob Air Re1ief-Assy Rod-Spigot Switch O-Ring-4-Door O-Ring-Spigot O-Ring-Air Relief Extension-Spigot a-Ring
39
40
PUMP MOTOR AND HOUSING ASSEMBLY SAFETY SWITCH ASSEMBLY
PRESSURE SWITCH ASSEMBLY ijreg~
I
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH IIIUaA
CAB DPR PUMP BREAKDOWN
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 196091 Pump Base 46 114009 Pump Cover 2 136088 Pump Support 47 113464 Base Bracket Assembly 3 150784 Strain Relief Bushing 48 135725 Stud 1-78 4 Power Cord 49 160131 516 Flatwasher 5 160075 10-24 x 38 Screw 50 160293 Speed Clip 6 135416 Cover Electric Box 51 135724 Button 7 160141 14 Lockwasher 52 160140 10 Lockwasher 8 160491 14-20 x 34 Socket Screw 53 135726 Stud 3 9 113497 Motor Cord 18-3 SJT 54 160109 10-24 Hex Nut 10 151127 Motor 40 RPM Soft Serve 55 135729 Switch Actuator 11 160023 14-20 x 1 Screw 56 135731 Stop - Max Pressure 12 153317 Half Moon Key 57 162315 Spring - Soft Serve 13 112925 Cam Drive Plate Assembly 58 160138 10 Flat Washer 14 160495 14-20 x 14 Set Screw 59 160304 10-24 Stop Nut 15 160369 Pin 60 150456 Pressure Switch 16 134614 Swing Clamp 61 135744 Insulator - Fiber 17 134521 Adjusting Clamp 62 160381 6-32 x 1 Socket Screw 18 160488 Thumb Screw 63 160393 6 Flatwasher 19 134604 Bearing Bushing 64 160146 6 Lockwasher 20 134602 Connecting Rod 65 160309 6-32 Hex Nut 21 134601 Piston 66 160006 6-32 x 14 Screw 22 159295 O-Ring 67 160001 8-32 x 38 Screw 23 134603 Wrist Pin 68 160470 8 Lockwasher 24 136089 Cylinder 69 150481 Circuit Breaker 25 199011 Washer Valve 70 135727 Switch Bracket 26 159282 O-Ring 71 136311 Spacer - Cover Switch 27 113839 Pump Valve Housing 72 160028 Truss Head Screw
Assembly (Metal) 14-20 x 34 SST 28 160582 O-Ring 73 160141 Lockwasher 14 29 199020 Sleeve Rubber 74 160104 Hex Nut 14-20 30 135793 Retainer Clip 75 136312 Button Guard 31 135791 Adapter Hose Outlet 76 160020 Hex Hd Cap Screw 32 160581 O-Ring 14-20 x 1 SST 33 135790 Piston 77 113869 Switch Bracket 34 162308 Spring Soft Serve 78 136110 Button Cover Switch 35 135792 Drain Port 79 162314 Spring 36 160611 O-Ring 80 150456 Switch Pump Safety 37 135896 Hose 24 81 135004 Switch Cover 38 160738 Hose Clamp 82 160296 Screw RH 39 136288 Keeper 6-32 x 1-14 40 160554 O-Ring 83 160146 Lockwasher 6 41 160368 Wing Nut Int Tooth 42 130054 Diaphragm Housing 84 160393 Flatwasher 6 43 199019 Diaphragm 85 160309 Hex Nut 6-32 44 196074 Air Tube-Curved 86 114572 Hose Clamp 45 163433 Air Meter - 20 87 160048 14-20 x 12 TRHM
(other sizes available) 88 160308 6-32 x 516 RDHM 89 114581 Circuit Breaker Bracket
Not Shown 90 163109 Stop Pivot 112791 DPR Pressure Gauge
41
Mfg by H C DUKE amp SON INC 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
42
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Unit does not operate 1 Fuse blown at main disconshy 1 Check fuse size check for low nect voltage if not within 10 of
nameplate rating install transformer or call power company
2 Beater motor out on overload 2 Press starter reset button and check for low voltage Check producllemperalure and overrun
3 Disconnected or broken wife 3 Check wiring and wire connecshyin electrical circuit lions repair or replace lead
wires as necessary
4 Faulty selector switch 4 Replace selector switch
5 Out on high pressure 5 Check for low waler supply or dirty air conden ser
6 Out on low pressure 6 Check limit control and freon charge
Compressor does not operate f Troubte in compressor con- I Refer to Trouble-Shootingshyor operates improperly densing circuit Compressor I Condensing
Circuit
2 Faulty capacitor assembly 2 Replace capaCitor assembly (Single phase only)
3 Faulty contactor 3 Replace contaclOr or pOints
Compressor operates but 1 Loose con neclion at motor 1 Tighten connection beater motor does not starter coil (electrical box)
2 Open starter coil 2 Replace coil
3 Faulty capacitor assembly 3 Replace capaCitor assembly (Single phase only)
Dispensed product too hard 1 Cylinder themostat erratic 1 Adjust thermo slat or replace or set too low
2 Faulty time delay relay 2 Replace time delay relay
3 Solenoid valve leaking 3 Replace solenoid valve
4 Low suction pressure 4 See chart on page 15 for adshyjustments
Leaking of mix from rear housshy 1 Damaged bealer shalt seal 1 Replace shaft seal or O-ring ing discharge tube to drip tray inside seal assy
Mig by H C DUKE amp SON INC bull 2116 Eighlh Avenue Easl Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Mix leaking at dispensing head 1 Faulty 4 O-Ring
2 Head not properly installed
1 Replace 4 O-Ring
2 Install head properly
Mix sours in cabinet 1 Cabinet thermostat setting too high
2 Cabinet thermostat detective
3 Cabinet solenoid valve deshyfective
4 Cabinet switch defective
5 Beater motor out on overshyload (cab side)
1 Adjust thermostat
2 Replace thermostat
3 Replace coil or solenoid
4 Replace cabinet switch
S Reset overload for beater motor See pg 42 unit does not operate
Cabinet too COld
Machine runs continually and Product continues to get colder
Compressor operates only when dispensing
Unit runs conMuously Product does nol reach 180 F temperature
6 Door sWitch defectIVe
1 Cabinet thermostat setting too low
2 Defective thermostat
3 Cabinet solenoid stuck open
4 Cabinet expansion valve set too low
1 Plunger switch out of adjustshyment
2 Su ction pressure too low
3 Defective plunger switch
4 Plunger switch rod engaged
5 Faulty time delay relay
6 Starter or relay contacts stuck
7 Faulty thermostat or bulb not deep enough in well
6 Replace door SWitch
1 Adjust thermostat
2 Replace thermostat
3 Replace solenoid
4 Adjust cabinet expansion valve (See pg 15)
1 Adjust plunger switch
2 Adjust expansion valve and check freon charge
3 Replace plunger switch
4 Close plunger completely
5 Replace time delay relay
I 6 Check contacts i
7 Check bulb location or replace thermostat
1 Cylinder themostat setting 1 Adjust thermostat or replace too high or thermostat deshyfective
1 Trouble in compressor I condensing system
2 ExpanSion valve setiing is too high
3 Low on refrigeranl
1 See Trouble-Shooling-CompressorI Condensing circuit
2 Adjust expansion valve
3 Check and repair leak and recharge
1
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE SLUSHbull
43
44
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Dispensed product too soft (Product temperature above 21 0 F)
1 Automatic expansion yalve incorrectly set or erratic in operation
-2 Leak in refrigeration system
resulting in little or no refrigeration
1 Adjust or replace expanSion valve
2 Pump down system or remove refrigerant charge repair leak evacuate and recharge
3 Excessive oil in system 3 Drain compressor to proper oil leyel pump down and flush system
4 Thermostat set too high taulty
or 4 Adiust thermostat or replace
Product dispenses slOWly out dispensing head
1 Reverse rotation 1 Change rotation to clockshywise from front of freezer
2 Dispensing speed adjustshyment boll too far down
2 Adjust bolt upward
3 Pum p problem 3 See pump Trouble-Shooting chart
4 Product too cold 4 See dispensed product too hard pg42
TROUBLE-SHOOTING CHART COMPRESSORICONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor will not start -hums intermittently (cycling on oyerload)
1 Improperly wired
2 Low line Yoltage
3 Open starting capacitor (single phase only)
4 High discharge pressure
1 Check wiring against diagram
2 Ask power company to increase YOltage to not less than 10 below nameplate rating or install transformer Check for inadequate wire size
3 Replace starting capacitor
4 CheCK water regulating valve setting Check water or air condenser and clean if necessary Make sure disshycharge shut-oft valve is open
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor starts but remains 1 Low line voltage 1 Ask power company to in start windings increase voltage to not less (Single phase only) than 10 below nameplate
rating or install transrormer
2 Improperly wired 2 Check wiring against drawing Check wire size
3 Running capacitor shorted 3 Check by disconnecting running capacitor
4 Starting capacitor weak 4 Check capacitor replace
5 High disCharge pressure 5 Check water regulating valve check water or air condenser and clean il necessary Check discharge shut-off valve
Starter burned out 1 Low line voltage 1 Ask power company to inshycrease voltage to not less than 10 below nameplate rating or install transformer
2 Excessive line voltage 2 Ask power company to reduce voltage to maximum of 10 over nameplate rating
Starting capacitors burn out 1 Voltage 100 low 1 Ask power company to (Single phase only) increase voltage to not less
than 10 below nameplate rating or install translonmer
2 Improper capacitor 2 Replace capacitor with properly rated capacitor as listed in manual
Running capacitors burn out 1 Excessive line voltage 1 Ask power company to reshy(Single phase only) duce line voltage to not more
than 10 above rating 01 motor
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
45
46
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Unit operates long or continuously
1 Shortage of gas
2 Dirty condenser
3 Moisture in system
4 Compressor failing
1 Repair leak and recharge
2 Clean condenser
3 Evacuate and recharge system
4 Check compressor lor proper pressures If inadequate replace compressor
Head pressure too high 1 Refrigerant overcharge
2 Air in system
3 Dirty condenser (air cooled)
4 Unit location too warm (air cooled)
5 Restricted water cooled condenser
6 Water turned off or defective
1 Purge system
2 Purge system evacuate and recharge
3 Clean condenser
4 Relocate unIt away from restriction Place nothing against back or on top of unit
5 Clean or replace condenser
6 Turn on water Or replace water regulating valve regulating valve
Head pressure too low 1 Shortage 01 refrigerant 1 Repair leak and recharge
2 Water regulating valve open 2 Adjust regulating valve too wide
Water 1I0wing through water 1 Water regulating valve 1 Replace water regulating valve waste line when unit is not in operation
defective
Noisy compressor 1 Tubing raUle 1 Bend tubes away from contact
NOTE Refer to warranty card prior to compressor replacement
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING DPR PUMP
TROUBLE PROBABLE CAUSE REMEDY
Pump will not run 1 Pump cover removed 1 Install pump cover
2 Pressure switch actuating 2 Free bulton-check spring and
bulton stuck open (in) pressure switch alignment
3 Pressure switch burned out 3 Replace pressure switch
4 Starting switch in motor bad 4 Install new starting switch
5 Motor burned out 5 Replace motor
6 Circuit breaker kicked out 6 Allow to re- set Replace it or faulty circuit breaker will not
automatically re-set
Motor runs-cam drive plate 1 Loose cam drive plate 1 Tighten set screw in cam will not turn drive plate Check woodruff key
2 Gear stripped 2 Replace gear
Pump will not shut off Mix 1 Pressure swilch actuating 1 Free button-check pressure shoots out pressure relief bulton stuck closed (out) switch alignment
2 Pressure switch stuck in 2 Replace pressure switch closed position
3 Pressure switch assy out 3 Using pressure gauge adjust of adjustment pressure
4 Dirty or plugged diaphragm 4 Disassemble and clean housing (Ref 42) housing
5 Defective O-Ring on 5 Replace O-Ring pressure relief piston
Pump will not prime 1 Insufficient supply of mix 1 Replenish mix supply
2 Piston O-ring defective-no 2 Replace piston O-Ring and suction lubricate
3 Washer valve not sealing 3 Replace washer valve DO NOT LUBRICATE
Pump primes No pressure in 1 Sleeve (Rei 29) not sealing 1 Replace sleeve DO NOT cylinder properly LUBRICATE
2 Loose hose connection on 2 Install or tighten hose clamp pump valve housing (Ref 27)
Mix shoots out Of air intake line 1 Washer valve (Ref 25) 1 Replace washer valve-DO not sealing properly NOT LUBRICATE
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOfT SERVE bull SHAKE bull SLUSH
47
48
TROUBLE-SHOOTING DPR PUMP
Too much air overrun too high-popping problems
Product dispenses slowly out of disPenSing head
1 Air meter too large (Ref 45)
2 Air leak befween mix conshytainer and mix inlet
3 Air line hose crackedshysucking air (Ref 44)
4 Pump pressure too lowshycylinder not full
1 Pump pressure too low
2 PrOduct too cold
3 Low overrun
Diaphragm housing leaking mix 1 Diaphragm housing loose
2 Diaphragm defective
Piston drive assy noisy 1 Bushing bearing worn
2 Defective gear in gear motor
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SIfAKE bull SLUSH
REMEDY
1 Replace washer valve-DO NOT LUBRICATE
2 Install clamp on hose
1 Replace O-Ring and LUBRIshyCATE
1 Clean or replace air meter
2 Replace tube
1 Install smaller air meier
2 Repair as needed
3 Replace air line hose
4 Using pressure gauge adjust pressure switch
1 Using pressure gauge adjust pump pressure
2 Check product temperatureshyshould be about 18 F
3 Check meter-if plugged-clean
1 Tighten wing nuls (Ref 41)
2 Replace diaphragm (Ref 43)
1 Replace bushing bearing (Ref 19)
2 Replace gear
TROUBLE
Mix inlet hose loses prime
Mix on top of piston
PROBABLE CAUSE
1 Washer valve (Ref 25) not sealing properly
2 Mix inlet hose loose
1 Piston O-Ring leaking (Ref 22)
No Air (Overrun) 11 Ai r meter plugged (Ref I 45)
2 Curved air tube pinched
--
DPR PUMP aI
PART NO 199019(i) PART NO 199020 reg DIAPHRAGM RUBBER SLEEVE
PART NO159295 PART NO 159282reg O-RING O-RING0
PART NO 160581reg O-RING
o PART NO PART NO
PART NO199011() 160611(8) 160582 WASHER VALVE O-RING O-RING
PISTON
cJ
DIAPHRAGM HOUSING
CYLINDER
VALVE HOUSIN6 ASSEMBLY
PUUPOUTLET
DRAIN PORT
I PHNO309-755-4553 O-RING CHART HCDUKEampSONINC I
1 I84Z08 SOFT SERVE DISPENSING HEADS I
o PART NO 1605620
PAR~159--1b
PART NO PART NO 1605841 59295()
I PHNO 309-755-4553 O-R ING CHART HCDUKEampSONINC I
- Cover
- Table of Contents
- Safety
- Uncrating amp Inspection13
- Explanation of Electrical Controls
- Operation of Machine
- General Information
- Maintenance amp Adjustment
- Parts Breakdowns
- Trouble-Shooting Charts
- O-ring Charts
-
SOFT SERVE CAB ELECTRICAL BOX
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 Contactor (Order By Freezer 5 150463 Selector Switch
Serial Number) 6 159235 Toggle Switch (Pump) 2 Overload (Order By Freezer 7 150456 Spigot Switch
Serial Number) 7A 136124 Button - Spigot Switch 2A Heater Coil (Order By Freezer 7B 162302 Spring - Spigot Switch
Serial Number) 8 150553 Pilot Light - Amber 3 Starter (Order By Freezer 9 150552 Pilot Light - Red
Serial Number) 10 161026 Thermometer (Not Shown) 4 150208 Timer
26
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Pointed u
- - --- -
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prifllcl If USA
In-
ca ~ Q ltC wr w I
Zshy
2B
()
w gta w ()
tshy~ o ()
SOFT-SERVE - SINGLE HEAD CAB
REF PART No 1 151351
2 3 4 5 6 151044
151052 7
8 155039 9 155400 10 155117
11 151084
12A 159021 13 155401 13A 155423 14 155403 15 155422
16 154976 16 154975 17 159203 18 155051 19 112901
155410 20 155044
151348
DESCRIPTION Capacitor Relay Assembly (single phase)
150247 Start Capacitor
150249 Run Capacitor 150245 Relay Motor Capacitors (order by freezer serial no) Gear Reducer (see gear reducer breakdown page 36) Driven Pulley (order by freezer serial no) Belt (order by freezer serial no) Motor 1-phase 230 volt Motor 3-phase 208230 volt Driver Pulley (order by freezer serial no)
Water Condenser Automatic Expansion Valve (Cylinder) Air Condenser
Condenser Fan Motor
Condenser Fan Blade High Pressure Cut-Out shyHigh Pressure Cut-Out shyLow Pressure Cut-Out Solenoid Valve
Compressor 230160
AC WC
Compressor 208-230360 Sight Glass Drier (38) Receiver Tank Assembly Water Valve (not shown) Service Valve Compressor Mounting Kit
Note I) lt0 For All 50-Cycle Freezers Order By Freezer Serial Number
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Printad I usA
30
c W -I o o o a w ~ 3
III
~ W -I III J o C
w gta w en u o en
SOFT-SERVE - DOUBLE CAB - WATER COOLED REF PART No DESCRIPTION 1 155026 Water Condenser (B-side) 1 A 155039 Water Condenser (A-side) 2 159203 Sight Glass 3 155051 Drier (38) 4 155400 Automatic Expansion Valve (Cylinder) 5 Gear Reducer (see gear reducer breakdown page 36) 6 155410 Water Valve 7 155423 High Pressure Cut-Out 8 155403 Low Pressure Cut-Out 9 154976 Compressor 230160
151351 Capacitor Relay Assembly (Single Phase) 150247 Start Capacitor 150249 Run Capacitor 150245 Relay
9A 154975 Compressor 208-230360~-11 NOT USED ON THIS MODEL 12 155442 Low Temp Control 13 Driven Pulley (order by freezer serial no) 14 Belt (order by freezer serial no) 15 Driver Pulley (order by freezer serial no) 16 155422 Solenoid Valve 17 151044 Motor 1 phase 230 volt 17A 151052 Motor 3 phase 208230 volt 18 Motor Capacitors single phase only (order by freezer serial no)
Note For All 50-Cycle Freezers Order By Freezer Serial Number
cgt
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH _InU5A
32
c W J o o o -a oCt
aI oCt o W I m ) o c w gta w Ch t--LL o Ch
SOFTmiddotSERVE bull DOUBLE CAB - AIR COOLED REF PART No 1 155120 2 159020 3 151080 4 155400 5 6 159203 7 155051 8 112901 9 151044 9A 151052 10 11 12 14 154976
14A 154975 15 155401 16 155403 17 155443 18 155442 19
21 155422
DESCRIPTION Condenser Fan Blade Fan Motor Automatic Expansion Valve (Cylinder) Reducer (see gear reducer breakdown page 36) Sight Glass Drier Receiver Assembly Motor 1-Phase 230 Volt Motor 3-Phase 208230 Volt Driven Pulley (order by freezer serial no) Belt (ordr by freezer serial no) Driver Pulley (order by freezer serial no) Compressor 230160 151351 Capacitor Relay Assembly (Single Phase)
150247 Start Capacitor 150249 Run Capacitor 150245 Relay
Compressor 208-230360 High Pressure Cut-Out Low Pressure Cut-Out Cabinet Thermostat Low Temp Thermostat NOT USED ON THIS MODEL Motor Capacitors single phase only (order by freezer serial no) Solenoid Valve
Note For All 50-Cycle Freezers Order By Freezer Serial Number
Vl Vl
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prinled In USA
CAB PARTS BREAKDOWN
REF PART No DESCRIPTION PART No DESCRIPTION 1 155109 Cabinet Coil 136297 Condensate Pan (Not Shown) 1A 155113 Motor Cabinet Fan 196092 Mix Tank 7-12 Gal 1B 155099 Fan Blade Cabinet Coil 113997 Front Lid Mix Container
7-12 Gal 136248-01 Rear Lid Mix Cont 7-12 Gal
10 155416 CAB Automatic Expansion 130092 Mix Tube Valve 196028 Mix Tank 10 Gal
137119 Probe 11 -1 4 shy1E 155114 Fan Grill amp Bracket 7-12 Gal Container 1F 155116 Knob 137119-01 Probe 10-34 shy2 113898 DPR Pump Less Motor 7-12 amp 10
(see pump breakdown Gal Container pg 38) 137119-02 Probe 10-14 shy
3 196061 Mix Hose (sold by the foot) 10 Gal Container 4 150416 Door Switch 137120 Base Probe Mtg 4A 114630 Actuator Door Switch 160500 O-Ring
(Not Shown) 114572 Hose Clamp (Not Shown) 5 150527 Retractable Cordset 34
MIg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prlmd UsA
MERCHANDISING ASSY
PART No 115108 115107
PART No
196107-01 196108-01 114610 114608 115132 199030
PART No 162105 162106 112978 158004 158021 158022 158078 158000 158056 158000A 158014 158014A 161000 158049
DESCRIPTION 2S Merchandiser-927-957-978CAB 24 Merchandiser-917CAB
DRIP TRAY
DESCRIPTION
24 Drip Tray-917CAB 26- Drip Tray-927-957-978CAB 24 Tray Insert-917CAD 26 Tray Insert-978CAB-927CAB 26 Tray Insert-957CAB Rubber Bumper (only)
DESCRIPTION Caster With Brake Caster Without Brake Leg-6 4 Cylinder Brush Mix Hose Brush 58 Dia w6 Ft Handle 14 Pump Brush Drain Tube Brush Petrol Gel (12 tube carton) Petrol Gel (6 tube carton) Pe1rol Gel (per tube) Stera Sheen (per case) Stera Sheen (per jar) Pocket Thermometer 1 Dial Z32 Overrun Scale
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SNAKE bull SLUSH
35
36
GEAR REDUCERS Order By Freezer Serial Number
Model 3 CB
153345 5-1 Ratio B side 153004 High Speed Cup ~ (2 ea required) 153005 High Speed Bearing (2 ea required) 153008 Slow Speed Cup (2 ea required) 153009 Slow Speed Bearing (2 ea required) 153052 Slow Speed Seal (2 ea required) 153054 High Speed Seal (2 ea required) 153313 Brass Gear 5-1 Ratio 153336 Slow Speed Shaft Only 5-1 Ratio 153316 Worm Gear On Shaft 5-1 Ratio 114873 Gasket Set
Model 4 CB
153342 10-1 Ratio A side 153343 10-1 Ratio B side
153014 High Speed Cup (2 ea required) 153015 High Speed Bearing (2 ea required) 153011 Slow Speed Cup (2 ea required) 153012 Slow Speed Bearing (2 ea required) 153051 Slow Speed Seal (2 ea required) 153053 High Speed Seal (2 ea required) 153349 Brass Gear 10-1 Ratio 153339 Slow Speed Shaft OnIy 10-1 Ratio 153347 Worm Gear on Shaft 10-1 Ratio 114874 Gasket Set
Winlwin Model
153341 Wintwin 10-1 Ratio A and B Side
153014 High Speed Cup (2 ea required) 153015 High Speed Bearing (2 ea required) 153011 Slow Speed Cup (2 ea required) 153012 Slow Speed Bearing (2 ea required) 153051 Slow Speed Seal (2 ea required) 153053 High Speed Seal (2 ea required) 153349 Brass Gear 153350 Slow Speed Shaft Only 153348 Worm Gear on Shaft 11 4874 Gasket Set
158055 Gear Reducer OU 51001
Drive Coupling (Order By Machine Serial Number)
Mfg by H C DUKE amp SON INC bull 2115 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
917 amp 927 Beater Shaft Assembly
957 Beater Shaft
Item Part No Description
1 196079 Bushing-Cylinder 2 114752 Beater-Assy Long (Shaft) 3 137334 Blade-Scraper Soft Serve 4- 160500 O-Ring (Shaft Seal) 5- 133098 Bushing (Washer-Shaft Seal) 6 160557 Seal-Beater Shaft
-Items 4-6 111875 Seal-Assy Shaft (Complete)
31
1 113438 2 196079 3 137334 4- 160500 5- 133098 6 160557
-Items 4-6 111875
Shaft-Assy Beater Bushing-Cylinder Blade-Scraper O-ring (Shaft Seal) Washer-Shaft Seal (Bushing) Seal-Beater Shaft (Cup)
Seal-Assy Shaft (Complete)
ao
DISPENSING HEAD
16
r
Q
--~
-----_
REF PART No DESCRIPTION Tl3o 6 119928- Door Assembly shy Complete (Items 7-14) 11637- 7 196688 Door shy Less Parts
a 134921 Spigot shy Less Extension 9 134922 Handle Extension shy Spigot
10 162624 Handle 11 159295 OmiddotRings shy Spigot (Lots of 5)12 159309 O-ring shy 4 - Door 13 196066 Air Relief Screw 14 160621 a-Ring shy Air Relief Screw (Lots of 5)15 136126 Rod - Spigot Switch shy 917 8 927 16 136798 HMdKnob
38
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illmols 61244
SUPERIOR QUAUlY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
Duke Soft Serve Freezer Models 917R and 927RN
5 -______
7
6
UPDATEDDispense Head Assembly
Item Part No
115130 1 116321 2 160583 3 115129 4 160562 5 136126 6 134921 SA 162624 68 134922 7 159295 8 160584 9 162625 9A 114341 10 196185 10A 137870 108 136713
116410
Includes items 1-4 6-8
Description
Head-Assy Dispense (Complete) Head-Assy wActualor O-ring (Head-4-inch) Bleeder-Assy (Air Relief Plug) O-ring (Bleeder-Assy) Rod-Spigot Switch Spigot-long Single Handle-Black Tapered Handle-Spigot (Stainless Steel) O-ring (Spigot) O-ring (Extension) Knob-Hand Stud-Assy Cylinder 1-15116 inch (not shown) Nouie-Slar Adapter (accessory) Adapter-Yogurt Nozzle (not shown) Extension-Spigot (accessory-cake not shown) Kit-Dispense Head Switch
( Use only original or authorized replacement parts with this freezer )
DISPENSING HEAD
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH uu
REF PART No 114765
1 196082 2 114313 3 137018 5 136618 6 162626 8 134499 9 162625
10 115129 11 136794 12 159309 13 159295 14 160562 15 136713 16 160584
DESCRIPTION Door Assy-Complete Door-Less Parts Spigot Assy-Side Spigot Only-Center Extension Only-Center Handle Stud-Handle Stop Hand Knob Air Re1ief-Assy Rod-Spigot Switch O-Ring-4-Door O-Ring-Spigot O-Ring-Air Relief Extension-Spigot a-Ring
39
40
PUMP MOTOR AND HOUSING ASSEMBLY SAFETY SWITCH ASSEMBLY
PRESSURE SWITCH ASSEMBLY ijreg~
I
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH IIIUaA
CAB DPR PUMP BREAKDOWN
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 196091 Pump Base 46 114009 Pump Cover 2 136088 Pump Support 47 113464 Base Bracket Assembly 3 150784 Strain Relief Bushing 48 135725 Stud 1-78 4 Power Cord 49 160131 516 Flatwasher 5 160075 10-24 x 38 Screw 50 160293 Speed Clip 6 135416 Cover Electric Box 51 135724 Button 7 160141 14 Lockwasher 52 160140 10 Lockwasher 8 160491 14-20 x 34 Socket Screw 53 135726 Stud 3 9 113497 Motor Cord 18-3 SJT 54 160109 10-24 Hex Nut 10 151127 Motor 40 RPM Soft Serve 55 135729 Switch Actuator 11 160023 14-20 x 1 Screw 56 135731 Stop - Max Pressure 12 153317 Half Moon Key 57 162315 Spring - Soft Serve 13 112925 Cam Drive Plate Assembly 58 160138 10 Flat Washer 14 160495 14-20 x 14 Set Screw 59 160304 10-24 Stop Nut 15 160369 Pin 60 150456 Pressure Switch 16 134614 Swing Clamp 61 135744 Insulator - Fiber 17 134521 Adjusting Clamp 62 160381 6-32 x 1 Socket Screw 18 160488 Thumb Screw 63 160393 6 Flatwasher 19 134604 Bearing Bushing 64 160146 6 Lockwasher 20 134602 Connecting Rod 65 160309 6-32 Hex Nut 21 134601 Piston 66 160006 6-32 x 14 Screw 22 159295 O-Ring 67 160001 8-32 x 38 Screw 23 134603 Wrist Pin 68 160470 8 Lockwasher 24 136089 Cylinder 69 150481 Circuit Breaker 25 199011 Washer Valve 70 135727 Switch Bracket 26 159282 O-Ring 71 136311 Spacer - Cover Switch 27 113839 Pump Valve Housing 72 160028 Truss Head Screw
Assembly (Metal) 14-20 x 34 SST 28 160582 O-Ring 73 160141 Lockwasher 14 29 199020 Sleeve Rubber 74 160104 Hex Nut 14-20 30 135793 Retainer Clip 75 136312 Button Guard 31 135791 Adapter Hose Outlet 76 160020 Hex Hd Cap Screw 32 160581 O-Ring 14-20 x 1 SST 33 135790 Piston 77 113869 Switch Bracket 34 162308 Spring Soft Serve 78 136110 Button Cover Switch 35 135792 Drain Port 79 162314 Spring 36 160611 O-Ring 80 150456 Switch Pump Safety 37 135896 Hose 24 81 135004 Switch Cover 38 160738 Hose Clamp 82 160296 Screw RH 39 136288 Keeper 6-32 x 1-14 40 160554 O-Ring 83 160146 Lockwasher 6 41 160368 Wing Nut Int Tooth 42 130054 Diaphragm Housing 84 160393 Flatwasher 6 43 199019 Diaphragm 85 160309 Hex Nut 6-32 44 196074 Air Tube-Curved 86 114572 Hose Clamp 45 163433 Air Meter - 20 87 160048 14-20 x 12 TRHM
(other sizes available) 88 160308 6-32 x 516 RDHM 89 114581 Circuit Breaker Bracket
Not Shown 90 163109 Stop Pivot 112791 DPR Pressure Gauge
41
Mfg by H C DUKE amp SON INC 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
42
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Unit does not operate 1 Fuse blown at main disconshy 1 Check fuse size check for low nect voltage if not within 10 of
nameplate rating install transformer or call power company
2 Beater motor out on overload 2 Press starter reset button and check for low voltage Check producllemperalure and overrun
3 Disconnected or broken wife 3 Check wiring and wire connecshyin electrical circuit lions repair or replace lead
wires as necessary
4 Faulty selector switch 4 Replace selector switch
5 Out on high pressure 5 Check for low waler supply or dirty air conden ser
6 Out on low pressure 6 Check limit control and freon charge
Compressor does not operate f Troubte in compressor con- I Refer to Trouble-Shootingshyor operates improperly densing circuit Compressor I Condensing
Circuit
2 Faulty capacitor assembly 2 Replace capaCitor assembly (Single phase only)
3 Faulty contactor 3 Replace contaclOr or pOints
Compressor operates but 1 Loose con neclion at motor 1 Tighten connection beater motor does not starter coil (electrical box)
2 Open starter coil 2 Replace coil
3 Faulty capacitor assembly 3 Replace capaCitor assembly (Single phase only)
Dispensed product too hard 1 Cylinder themostat erratic 1 Adjust thermo slat or replace or set too low
2 Faulty time delay relay 2 Replace time delay relay
3 Solenoid valve leaking 3 Replace solenoid valve
4 Low suction pressure 4 See chart on page 15 for adshyjustments
Leaking of mix from rear housshy 1 Damaged bealer shalt seal 1 Replace shaft seal or O-ring ing discharge tube to drip tray inside seal assy
Mig by H C DUKE amp SON INC bull 2116 Eighlh Avenue Easl Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Mix leaking at dispensing head 1 Faulty 4 O-Ring
2 Head not properly installed
1 Replace 4 O-Ring
2 Install head properly
Mix sours in cabinet 1 Cabinet thermostat setting too high
2 Cabinet thermostat detective
3 Cabinet solenoid valve deshyfective
4 Cabinet switch defective
5 Beater motor out on overshyload (cab side)
1 Adjust thermostat
2 Replace thermostat
3 Replace coil or solenoid
4 Replace cabinet switch
S Reset overload for beater motor See pg 42 unit does not operate
Cabinet too COld
Machine runs continually and Product continues to get colder
Compressor operates only when dispensing
Unit runs conMuously Product does nol reach 180 F temperature
6 Door sWitch defectIVe
1 Cabinet thermostat setting too low
2 Defective thermostat
3 Cabinet solenoid stuck open
4 Cabinet expansion valve set too low
1 Plunger switch out of adjustshyment
2 Su ction pressure too low
3 Defective plunger switch
4 Plunger switch rod engaged
5 Faulty time delay relay
6 Starter or relay contacts stuck
7 Faulty thermostat or bulb not deep enough in well
6 Replace door SWitch
1 Adjust thermostat
2 Replace thermostat
3 Replace solenoid
4 Adjust cabinet expansion valve (See pg 15)
1 Adjust plunger switch
2 Adjust expansion valve and check freon charge
3 Replace plunger switch
4 Close plunger completely
5 Replace time delay relay
I 6 Check contacts i
7 Check bulb location or replace thermostat
1 Cylinder themostat setting 1 Adjust thermostat or replace too high or thermostat deshyfective
1 Trouble in compressor I condensing system
2 ExpanSion valve setiing is too high
3 Low on refrigeranl
1 See Trouble-Shooling-CompressorI Condensing circuit
2 Adjust expansion valve
3 Check and repair leak and recharge
1
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE SLUSHbull
43
44
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Dispensed product too soft (Product temperature above 21 0 F)
1 Automatic expansion yalve incorrectly set or erratic in operation
-2 Leak in refrigeration system
resulting in little or no refrigeration
1 Adjust or replace expanSion valve
2 Pump down system or remove refrigerant charge repair leak evacuate and recharge
3 Excessive oil in system 3 Drain compressor to proper oil leyel pump down and flush system
4 Thermostat set too high taulty
or 4 Adiust thermostat or replace
Product dispenses slOWly out dispensing head
1 Reverse rotation 1 Change rotation to clockshywise from front of freezer
2 Dispensing speed adjustshyment boll too far down
2 Adjust bolt upward
3 Pum p problem 3 See pump Trouble-Shooting chart
4 Product too cold 4 See dispensed product too hard pg42
TROUBLE-SHOOTING CHART COMPRESSORICONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor will not start -hums intermittently (cycling on oyerload)
1 Improperly wired
2 Low line Yoltage
3 Open starting capacitor (single phase only)
4 High discharge pressure
1 Check wiring against diagram
2 Ask power company to increase YOltage to not less than 10 below nameplate rating or install transformer Check for inadequate wire size
3 Replace starting capacitor
4 CheCK water regulating valve setting Check water or air condenser and clean if necessary Make sure disshycharge shut-oft valve is open
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor starts but remains 1 Low line voltage 1 Ask power company to in start windings increase voltage to not less (Single phase only) than 10 below nameplate
rating or install transrormer
2 Improperly wired 2 Check wiring against drawing Check wire size
3 Running capacitor shorted 3 Check by disconnecting running capacitor
4 Starting capacitor weak 4 Check capacitor replace
5 High disCharge pressure 5 Check water regulating valve check water or air condenser and clean il necessary Check discharge shut-off valve
Starter burned out 1 Low line voltage 1 Ask power company to inshycrease voltage to not less than 10 below nameplate rating or install transformer
2 Excessive line voltage 2 Ask power company to reduce voltage to maximum of 10 over nameplate rating
Starting capacitors burn out 1 Voltage 100 low 1 Ask power company to (Single phase only) increase voltage to not less
than 10 below nameplate rating or install translonmer
2 Improper capacitor 2 Replace capacitor with properly rated capacitor as listed in manual
Running capacitors burn out 1 Excessive line voltage 1 Ask power company to reshy(Single phase only) duce line voltage to not more
than 10 above rating 01 motor
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
45
46
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Unit operates long or continuously
1 Shortage of gas
2 Dirty condenser
3 Moisture in system
4 Compressor failing
1 Repair leak and recharge
2 Clean condenser
3 Evacuate and recharge system
4 Check compressor lor proper pressures If inadequate replace compressor
Head pressure too high 1 Refrigerant overcharge
2 Air in system
3 Dirty condenser (air cooled)
4 Unit location too warm (air cooled)
5 Restricted water cooled condenser
6 Water turned off or defective
1 Purge system
2 Purge system evacuate and recharge
3 Clean condenser
4 Relocate unIt away from restriction Place nothing against back or on top of unit
5 Clean or replace condenser
6 Turn on water Or replace water regulating valve regulating valve
Head pressure too low 1 Shortage 01 refrigerant 1 Repair leak and recharge
2 Water regulating valve open 2 Adjust regulating valve too wide
Water 1I0wing through water 1 Water regulating valve 1 Replace water regulating valve waste line when unit is not in operation
defective
Noisy compressor 1 Tubing raUle 1 Bend tubes away from contact
NOTE Refer to warranty card prior to compressor replacement
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING DPR PUMP
TROUBLE PROBABLE CAUSE REMEDY
Pump will not run 1 Pump cover removed 1 Install pump cover
2 Pressure switch actuating 2 Free bulton-check spring and
bulton stuck open (in) pressure switch alignment
3 Pressure switch burned out 3 Replace pressure switch
4 Starting switch in motor bad 4 Install new starting switch
5 Motor burned out 5 Replace motor
6 Circuit breaker kicked out 6 Allow to re- set Replace it or faulty circuit breaker will not
automatically re-set
Motor runs-cam drive plate 1 Loose cam drive plate 1 Tighten set screw in cam will not turn drive plate Check woodruff key
2 Gear stripped 2 Replace gear
Pump will not shut off Mix 1 Pressure swilch actuating 1 Free button-check pressure shoots out pressure relief bulton stuck closed (out) switch alignment
2 Pressure switch stuck in 2 Replace pressure switch closed position
3 Pressure switch assy out 3 Using pressure gauge adjust of adjustment pressure
4 Dirty or plugged diaphragm 4 Disassemble and clean housing (Ref 42) housing
5 Defective O-Ring on 5 Replace O-Ring pressure relief piston
Pump will not prime 1 Insufficient supply of mix 1 Replenish mix supply
2 Piston O-ring defective-no 2 Replace piston O-Ring and suction lubricate
3 Washer valve not sealing 3 Replace washer valve DO NOT LUBRICATE
Pump primes No pressure in 1 Sleeve (Rei 29) not sealing 1 Replace sleeve DO NOT cylinder properly LUBRICATE
2 Loose hose connection on 2 Install or tighten hose clamp pump valve housing (Ref 27)
Mix shoots out Of air intake line 1 Washer valve (Ref 25) 1 Replace washer valve-DO not sealing properly NOT LUBRICATE
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOfT SERVE bull SHAKE bull SLUSH
47
48
TROUBLE-SHOOTING DPR PUMP
Too much air overrun too high-popping problems
Product dispenses slowly out of disPenSing head
1 Air meter too large (Ref 45)
2 Air leak befween mix conshytainer and mix inlet
3 Air line hose crackedshysucking air (Ref 44)
4 Pump pressure too lowshycylinder not full
1 Pump pressure too low
2 PrOduct too cold
3 Low overrun
Diaphragm housing leaking mix 1 Diaphragm housing loose
2 Diaphragm defective
Piston drive assy noisy 1 Bushing bearing worn
2 Defective gear in gear motor
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SIfAKE bull SLUSH
REMEDY
1 Replace washer valve-DO NOT LUBRICATE
2 Install clamp on hose
1 Replace O-Ring and LUBRIshyCATE
1 Clean or replace air meter
2 Replace tube
1 Install smaller air meier
2 Repair as needed
3 Replace air line hose
4 Using pressure gauge adjust pressure switch
1 Using pressure gauge adjust pump pressure
2 Check product temperatureshyshould be about 18 F
3 Check meter-if plugged-clean
1 Tighten wing nuls (Ref 41)
2 Replace diaphragm (Ref 43)
1 Replace bushing bearing (Ref 19)
2 Replace gear
TROUBLE
Mix inlet hose loses prime
Mix on top of piston
PROBABLE CAUSE
1 Washer valve (Ref 25) not sealing properly
2 Mix inlet hose loose
1 Piston O-Ring leaking (Ref 22)
No Air (Overrun) 11 Ai r meter plugged (Ref I 45)
2 Curved air tube pinched
--
DPR PUMP aI
PART NO 199019(i) PART NO 199020 reg DIAPHRAGM RUBBER SLEEVE
PART NO159295 PART NO 159282reg O-RING O-RING0
PART NO 160581reg O-RING
o PART NO PART NO
PART NO199011() 160611(8) 160582 WASHER VALVE O-RING O-RING
PISTON
cJ
DIAPHRAGM HOUSING
CYLINDER
VALVE HOUSIN6 ASSEMBLY
PUUPOUTLET
DRAIN PORT
I PHNO309-755-4553 O-RING CHART HCDUKEampSONINC I
1 I84Z08 SOFT SERVE DISPENSING HEADS I
o PART NO 1605620
PAR~159--1b
PART NO PART NO 1605841 59295()
I PHNO 309-755-4553 O-R ING CHART HCDUKEampSONINC I
- Cover
- Table of Contents
- Safety
- Uncrating amp Inspection13
- Explanation of Electrical Controls
- Operation of Machine
- General Information
- Maintenance amp Adjustment
- Parts Breakdowns
- Trouble-Shooting Charts
- O-ring Charts
-
- - --- -
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prifllcl If USA
In-
ca ~ Q ltC wr w I
Zshy
2B
()
w gta w ()
tshy~ o ()
SOFT-SERVE - SINGLE HEAD CAB
REF PART No 1 151351
2 3 4 5 6 151044
151052 7
8 155039 9 155400 10 155117
11 151084
12A 159021 13 155401 13A 155423 14 155403 15 155422
16 154976 16 154975 17 159203 18 155051 19 112901
155410 20 155044
151348
DESCRIPTION Capacitor Relay Assembly (single phase)
150247 Start Capacitor
150249 Run Capacitor 150245 Relay Motor Capacitors (order by freezer serial no) Gear Reducer (see gear reducer breakdown page 36) Driven Pulley (order by freezer serial no) Belt (order by freezer serial no) Motor 1-phase 230 volt Motor 3-phase 208230 volt Driver Pulley (order by freezer serial no)
Water Condenser Automatic Expansion Valve (Cylinder) Air Condenser
Condenser Fan Motor
Condenser Fan Blade High Pressure Cut-Out shyHigh Pressure Cut-Out shyLow Pressure Cut-Out Solenoid Valve
Compressor 230160
AC WC
Compressor 208-230360 Sight Glass Drier (38) Receiver Tank Assembly Water Valve (not shown) Service Valve Compressor Mounting Kit
Note I) lt0 For All 50-Cycle Freezers Order By Freezer Serial Number
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Printad I usA
30
c W -I o o o a w ~ 3
III
~ W -I III J o C
w gta w en u o en
SOFT-SERVE - DOUBLE CAB - WATER COOLED REF PART No DESCRIPTION 1 155026 Water Condenser (B-side) 1 A 155039 Water Condenser (A-side) 2 159203 Sight Glass 3 155051 Drier (38) 4 155400 Automatic Expansion Valve (Cylinder) 5 Gear Reducer (see gear reducer breakdown page 36) 6 155410 Water Valve 7 155423 High Pressure Cut-Out 8 155403 Low Pressure Cut-Out 9 154976 Compressor 230160
151351 Capacitor Relay Assembly (Single Phase) 150247 Start Capacitor 150249 Run Capacitor 150245 Relay
9A 154975 Compressor 208-230360~-11 NOT USED ON THIS MODEL 12 155442 Low Temp Control 13 Driven Pulley (order by freezer serial no) 14 Belt (order by freezer serial no) 15 Driver Pulley (order by freezer serial no) 16 155422 Solenoid Valve 17 151044 Motor 1 phase 230 volt 17A 151052 Motor 3 phase 208230 volt 18 Motor Capacitors single phase only (order by freezer serial no)
Note For All 50-Cycle Freezers Order By Freezer Serial Number
cgt
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH _InU5A
32
c W J o o o -a oCt
aI oCt o W I m ) o c w gta w Ch t--LL o Ch
SOFTmiddotSERVE bull DOUBLE CAB - AIR COOLED REF PART No 1 155120 2 159020 3 151080 4 155400 5 6 159203 7 155051 8 112901 9 151044 9A 151052 10 11 12 14 154976
14A 154975 15 155401 16 155403 17 155443 18 155442 19
21 155422
DESCRIPTION Condenser Fan Blade Fan Motor Automatic Expansion Valve (Cylinder) Reducer (see gear reducer breakdown page 36) Sight Glass Drier Receiver Assembly Motor 1-Phase 230 Volt Motor 3-Phase 208230 Volt Driven Pulley (order by freezer serial no) Belt (ordr by freezer serial no) Driver Pulley (order by freezer serial no) Compressor 230160 151351 Capacitor Relay Assembly (Single Phase)
150247 Start Capacitor 150249 Run Capacitor 150245 Relay
Compressor 208-230360 High Pressure Cut-Out Low Pressure Cut-Out Cabinet Thermostat Low Temp Thermostat NOT USED ON THIS MODEL Motor Capacitors single phase only (order by freezer serial no) Solenoid Valve
Note For All 50-Cycle Freezers Order By Freezer Serial Number
Vl Vl
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prinled In USA
CAB PARTS BREAKDOWN
REF PART No DESCRIPTION PART No DESCRIPTION 1 155109 Cabinet Coil 136297 Condensate Pan (Not Shown) 1A 155113 Motor Cabinet Fan 196092 Mix Tank 7-12 Gal 1B 155099 Fan Blade Cabinet Coil 113997 Front Lid Mix Container
7-12 Gal 136248-01 Rear Lid Mix Cont 7-12 Gal
10 155416 CAB Automatic Expansion 130092 Mix Tube Valve 196028 Mix Tank 10 Gal
137119 Probe 11 -1 4 shy1E 155114 Fan Grill amp Bracket 7-12 Gal Container 1F 155116 Knob 137119-01 Probe 10-34 shy2 113898 DPR Pump Less Motor 7-12 amp 10
(see pump breakdown Gal Container pg 38) 137119-02 Probe 10-14 shy
3 196061 Mix Hose (sold by the foot) 10 Gal Container 4 150416 Door Switch 137120 Base Probe Mtg 4A 114630 Actuator Door Switch 160500 O-Ring
(Not Shown) 114572 Hose Clamp (Not Shown) 5 150527 Retractable Cordset 34
MIg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prlmd UsA
MERCHANDISING ASSY
PART No 115108 115107
PART No
196107-01 196108-01 114610 114608 115132 199030
PART No 162105 162106 112978 158004 158021 158022 158078 158000 158056 158000A 158014 158014A 161000 158049
DESCRIPTION 2S Merchandiser-927-957-978CAB 24 Merchandiser-917CAB
DRIP TRAY
DESCRIPTION
24 Drip Tray-917CAB 26- Drip Tray-927-957-978CAB 24 Tray Insert-917CAD 26 Tray Insert-978CAB-927CAB 26 Tray Insert-957CAB Rubber Bumper (only)
DESCRIPTION Caster With Brake Caster Without Brake Leg-6 4 Cylinder Brush Mix Hose Brush 58 Dia w6 Ft Handle 14 Pump Brush Drain Tube Brush Petrol Gel (12 tube carton) Petrol Gel (6 tube carton) Pe1rol Gel (per tube) Stera Sheen (per case) Stera Sheen (per jar) Pocket Thermometer 1 Dial Z32 Overrun Scale
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SNAKE bull SLUSH
35
36
GEAR REDUCERS Order By Freezer Serial Number
Model 3 CB
153345 5-1 Ratio B side 153004 High Speed Cup ~ (2 ea required) 153005 High Speed Bearing (2 ea required) 153008 Slow Speed Cup (2 ea required) 153009 Slow Speed Bearing (2 ea required) 153052 Slow Speed Seal (2 ea required) 153054 High Speed Seal (2 ea required) 153313 Brass Gear 5-1 Ratio 153336 Slow Speed Shaft Only 5-1 Ratio 153316 Worm Gear On Shaft 5-1 Ratio 114873 Gasket Set
Model 4 CB
153342 10-1 Ratio A side 153343 10-1 Ratio B side
153014 High Speed Cup (2 ea required) 153015 High Speed Bearing (2 ea required) 153011 Slow Speed Cup (2 ea required) 153012 Slow Speed Bearing (2 ea required) 153051 Slow Speed Seal (2 ea required) 153053 High Speed Seal (2 ea required) 153349 Brass Gear 10-1 Ratio 153339 Slow Speed Shaft OnIy 10-1 Ratio 153347 Worm Gear on Shaft 10-1 Ratio 114874 Gasket Set
Winlwin Model
153341 Wintwin 10-1 Ratio A and B Side
153014 High Speed Cup (2 ea required) 153015 High Speed Bearing (2 ea required) 153011 Slow Speed Cup (2 ea required) 153012 Slow Speed Bearing (2 ea required) 153051 Slow Speed Seal (2 ea required) 153053 High Speed Seal (2 ea required) 153349 Brass Gear 153350 Slow Speed Shaft Only 153348 Worm Gear on Shaft 11 4874 Gasket Set
158055 Gear Reducer OU 51001
Drive Coupling (Order By Machine Serial Number)
Mfg by H C DUKE amp SON INC bull 2115 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
917 amp 927 Beater Shaft Assembly
957 Beater Shaft
Item Part No Description
1 196079 Bushing-Cylinder 2 114752 Beater-Assy Long (Shaft) 3 137334 Blade-Scraper Soft Serve 4- 160500 O-Ring (Shaft Seal) 5- 133098 Bushing (Washer-Shaft Seal) 6 160557 Seal-Beater Shaft
-Items 4-6 111875 Seal-Assy Shaft (Complete)
31
1 113438 2 196079 3 137334 4- 160500 5- 133098 6 160557
-Items 4-6 111875
Shaft-Assy Beater Bushing-Cylinder Blade-Scraper O-ring (Shaft Seal) Washer-Shaft Seal (Bushing) Seal-Beater Shaft (Cup)
Seal-Assy Shaft (Complete)
ao
DISPENSING HEAD
16
r
Q
--~
-----_
REF PART No DESCRIPTION Tl3o 6 119928- Door Assembly shy Complete (Items 7-14) 11637- 7 196688 Door shy Less Parts
a 134921 Spigot shy Less Extension 9 134922 Handle Extension shy Spigot
10 162624 Handle 11 159295 OmiddotRings shy Spigot (Lots of 5)12 159309 O-ring shy 4 - Door 13 196066 Air Relief Screw 14 160621 a-Ring shy Air Relief Screw (Lots of 5)15 136126 Rod - Spigot Switch shy 917 8 927 16 136798 HMdKnob
38
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illmols 61244
SUPERIOR QUAUlY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
Duke Soft Serve Freezer Models 917R and 927RN
5 -______
7
6
UPDATEDDispense Head Assembly
Item Part No
115130 1 116321 2 160583 3 115129 4 160562 5 136126 6 134921 SA 162624 68 134922 7 159295 8 160584 9 162625 9A 114341 10 196185 10A 137870 108 136713
116410
Includes items 1-4 6-8
Description
Head-Assy Dispense (Complete) Head-Assy wActualor O-ring (Head-4-inch) Bleeder-Assy (Air Relief Plug) O-ring (Bleeder-Assy) Rod-Spigot Switch Spigot-long Single Handle-Black Tapered Handle-Spigot (Stainless Steel) O-ring (Spigot) O-ring (Extension) Knob-Hand Stud-Assy Cylinder 1-15116 inch (not shown) Nouie-Slar Adapter (accessory) Adapter-Yogurt Nozzle (not shown) Extension-Spigot (accessory-cake not shown) Kit-Dispense Head Switch
( Use only original or authorized replacement parts with this freezer )
DISPENSING HEAD
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH uu
REF PART No 114765
1 196082 2 114313 3 137018 5 136618 6 162626 8 134499 9 162625
10 115129 11 136794 12 159309 13 159295 14 160562 15 136713 16 160584
DESCRIPTION Door Assy-Complete Door-Less Parts Spigot Assy-Side Spigot Only-Center Extension Only-Center Handle Stud-Handle Stop Hand Knob Air Re1ief-Assy Rod-Spigot Switch O-Ring-4-Door O-Ring-Spigot O-Ring-Air Relief Extension-Spigot a-Ring
39
40
PUMP MOTOR AND HOUSING ASSEMBLY SAFETY SWITCH ASSEMBLY
PRESSURE SWITCH ASSEMBLY ijreg~
I
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH IIIUaA
CAB DPR PUMP BREAKDOWN
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 196091 Pump Base 46 114009 Pump Cover 2 136088 Pump Support 47 113464 Base Bracket Assembly 3 150784 Strain Relief Bushing 48 135725 Stud 1-78 4 Power Cord 49 160131 516 Flatwasher 5 160075 10-24 x 38 Screw 50 160293 Speed Clip 6 135416 Cover Electric Box 51 135724 Button 7 160141 14 Lockwasher 52 160140 10 Lockwasher 8 160491 14-20 x 34 Socket Screw 53 135726 Stud 3 9 113497 Motor Cord 18-3 SJT 54 160109 10-24 Hex Nut 10 151127 Motor 40 RPM Soft Serve 55 135729 Switch Actuator 11 160023 14-20 x 1 Screw 56 135731 Stop - Max Pressure 12 153317 Half Moon Key 57 162315 Spring - Soft Serve 13 112925 Cam Drive Plate Assembly 58 160138 10 Flat Washer 14 160495 14-20 x 14 Set Screw 59 160304 10-24 Stop Nut 15 160369 Pin 60 150456 Pressure Switch 16 134614 Swing Clamp 61 135744 Insulator - Fiber 17 134521 Adjusting Clamp 62 160381 6-32 x 1 Socket Screw 18 160488 Thumb Screw 63 160393 6 Flatwasher 19 134604 Bearing Bushing 64 160146 6 Lockwasher 20 134602 Connecting Rod 65 160309 6-32 Hex Nut 21 134601 Piston 66 160006 6-32 x 14 Screw 22 159295 O-Ring 67 160001 8-32 x 38 Screw 23 134603 Wrist Pin 68 160470 8 Lockwasher 24 136089 Cylinder 69 150481 Circuit Breaker 25 199011 Washer Valve 70 135727 Switch Bracket 26 159282 O-Ring 71 136311 Spacer - Cover Switch 27 113839 Pump Valve Housing 72 160028 Truss Head Screw
Assembly (Metal) 14-20 x 34 SST 28 160582 O-Ring 73 160141 Lockwasher 14 29 199020 Sleeve Rubber 74 160104 Hex Nut 14-20 30 135793 Retainer Clip 75 136312 Button Guard 31 135791 Adapter Hose Outlet 76 160020 Hex Hd Cap Screw 32 160581 O-Ring 14-20 x 1 SST 33 135790 Piston 77 113869 Switch Bracket 34 162308 Spring Soft Serve 78 136110 Button Cover Switch 35 135792 Drain Port 79 162314 Spring 36 160611 O-Ring 80 150456 Switch Pump Safety 37 135896 Hose 24 81 135004 Switch Cover 38 160738 Hose Clamp 82 160296 Screw RH 39 136288 Keeper 6-32 x 1-14 40 160554 O-Ring 83 160146 Lockwasher 6 41 160368 Wing Nut Int Tooth 42 130054 Diaphragm Housing 84 160393 Flatwasher 6 43 199019 Diaphragm 85 160309 Hex Nut 6-32 44 196074 Air Tube-Curved 86 114572 Hose Clamp 45 163433 Air Meter - 20 87 160048 14-20 x 12 TRHM
(other sizes available) 88 160308 6-32 x 516 RDHM 89 114581 Circuit Breaker Bracket
Not Shown 90 163109 Stop Pivot 112791 DPR Pressure Gauge
41
Mfg by H C DUKE amp SON INC 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
42
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Unit does not operate 1 Fuse blown at main disconshy 1 Check fuse size check for low nect voltage if not within 10 of
nameplate rating install transformer or call power company
2 Beater motor out on overload 2 Press starter reset button and check for low voltage Check producllemperalure and overrun
3 Disconnected or broken wife 3 Check wiring and wire connecshyin electrical circuit lions repair or replace lead
wires as necessary
4 Faulty selector switch 4 Replace selector switch
5 Out on high pressure 5 Check for low waler supply or dirty air conden ser
6 Out on low pressure 6 Check limit control and freon charge
Compressor does not operate f Troubte in compressor con- I Refer to Trouble-Shootingshyor operates improperly densing circuit Compressor I Condensing
Circuit
2 Faulty capacitor assembly 2 Replace capaCitor assembly (Single phase only)
3 Faulty contactor 3 Replace contaclOr or pOints
Compressor operates but 1 Loose con neclion at motor 1 Tighten connection beater motor does not starter coil (electrical box)
2 Open starter coil 2 Replace coil
3 Faulty capacitor assembly 3 Replace capaCitor assembly (Single phase only)
Dispensed product too hard 1 Cylinder themostat erratic 1 Adjust thermo slat or replace or set too low
2 Faulty time delay relay 2 Replace time delay relay
3 Solenoid valve leaking 3 Replace solenoid valve
4 Low suction pressure 4 See chart on page 15 for adshyjustments
Leaking of mix from rear housshy 1 Damaged bealer shalt seal 1 Replace shaft seal or O-ring ing discharge tube to drip tray inside seal assy
Mig by H C DUKE amp SON INC bull 2116 Eighlh Avenue Easl Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Mix leaking at dispensing head 1 Faulty 4 O-Ring
2 Head not properly installed
1 Replace 4 O-Ring
2 Install head properly
Mix sours in cabinet 1 Cabinet thermostat setting too high
2 Cabinet thermostat detective
3 Cabinet solenoid valve deshyfective
4 Cabinet switch defective
5 Beater motor out on overshyload (cab side)
1 Adjust thermostat
2 Replace thermostat
3 Replace coil or solenoid
4 Replace cabinet switch
S Reset overload for beater motor See pg 42 unit does not operate
Cabinet too COld
Machine runs continually and Product continues to get colder
Compressor operates only when dispensing
Unit runs conMuously Product does nol reach 180 F temperature
6 Door sWitch defectIVe
1 Cabinet thermostat setting too low
2 Defective thermostat
3 Cabinet solenoid stuck open
4 Cabinet expansion valve set too low
1 Plunger switch out of adjustshyment
2 Su ction pressure too low
3 Defective plunger switch
4 Plunger switch rod engaged
5 Faulty time delay relay
6 Starter or relay contacts stuck
7 Faulty thermostat or bulb not deep enough in well
6 Replace door SWitch
1 Adjust thermostat
2 Replace thermostat
3 Replace solenoid
4 Adjust cabinet expansion valve (See pg 15)
1 Adjust plunger switch
2 Adjust expansion valve and check freon charge
3 Replace plunger switch
4 Close plunger completely
5 Replace time delay relay
I 6 Check contacts i
7 Check bulb location or replace thermostat
1 Cylinder themostat setting 1 Adjust thermostat or replace too high or thermostat deshyfective
1 Trouble in compressor I condensing system
2 ExpanSion valve setiing is too high
3 Low on refrigeranl
1 See Trouble-Shooling-CompressorI Condensing circuit
2 Adjust expansion valve
3 Check and repair leak and recharge
1
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE SLUSHbull
43
44
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Dispensed product too soft (Product temperature above 21 0 F)
1 Automatic expansion yalve incorrectly set or erratic in operation
-2 Leak in refrigeration system
resulting in little or no refrigeration
1 Adjust or replace expanSion valve
2 Pump down system or remove refrigerant charge repair leak evacuate and recharge
3 Excessive oil in system 3 Drain compressor to proper oil leyel pump down and flush system
4 Thermostat set too high taulty
or 4 Adiust thermostat or replace
Product dispenses slOWly out dispensing head
1 Reverse rotation 1 Change rotation to clockshywise from front of freezer
2 Dispensing speed adjustshyment boll too far down
2 Adjust bolt upward
3 Pum p problem 3 See pump Trouble-Shooting chart
4 Product too cold 4 See dispensed product too hard pg42
TROUBLE-SHOOTING CHART COMPRESSORICONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor will not start -hums intermittently (cycling on oyerload)
1 Improperly wired
2 Low line Yoltage
3 Open starting capacitor (single phase only)
4 High discharge pressure
1 Check wiring against diagram
2 Ask power company to increase YOltage to not less than 10 below nameplate rating or install transformer Check for inadequate wire size
3 Replace starting capacitor
4 CheCK water regulating valve setting Check water or air condenser and clean if necessary Make sure disshycharge shut-oft valve is open
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor starts but remains 1 Low line voltage 1 Ask power company to in start windings increase voltage to not less (Single phase only) than 10 below nameplate
rating or install transrormer
2 Improperly wired 2 Check wiring against drawing Check wire size
3 Running capacitor shorted 3 Check by disconnecting running capacitor
4 Starting capacitor weak 4 Check capacitor replace
5 High disCharge pressure 5 Check water regulating valve check water or air condenser and clean il necessary Check discharge shut-off valve
Starter burned out 1 Low line voltage 1 Ask power company to inshycrease voltage to not less than 10 below nameplate rating or install transformer
2 Excessive line voltage 2 Ask power company to reduce voltage to maximum of 10 over nameplate rating
Starting capacitors burn out 1 Voltage 100 low 1 Ask power company to (Single phase only) increase voltage to not less
than 10 below nameplate rating or install translonmer
2 Improper capacitor 2 Replace capacitor with properly rated capacitor as listed in manual
Running capacitors burn out 1 Excessive line voltage 1 Ask power company to reshy(Single phase only) duce line voltage to not more
than 10 above rating 01 motor
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
45
46
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Unit operates long or continuously
1 Shortage of gas
2 Dirty condenser
3 Moisture in system
4 Compressor failing
1 Repair leak and recharge
2 Clean condenser
3 Evacuate and recharge system
4 Check compressor lor proper pressures If inadequate replace compressor
Head pressure too high 1 Refrigerant overcharge
2 Air in system
3 Dirty condenser (air cooled)
4 Unit location too warm (air cooled)
5 Restricted water cooled condenser
6 Water turned off or defective
1 Purge system
2 Purge system evacuate and recharge
3 Clean condenser
4 Relocate unIt away from restriction Place nothing against back or on top of unit
5 Clean or replace condenser
6 Turn on water Or replace water regulating valve regulating valve
Head pressure too low 1 Shortage 01 refrigerant 1 Repair leak and recharge
2 Water regulating valve open 2 Adjust regulating valve too wide
Water 1I0wing through water 1 Water regulating valve 1 Replace water regulating valve waste line when unit is not in operation
defective
Noisy compressor 1 Tubing raUle 1 Bend tubes away from contact
NOTE Refer to warranty card prior to compressor replacement
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING DPR PUMP
TROUBLE PROBABLE CAUSE REMEDY
Pump will not run 1 Pump cover removed 1 Install pump cover
2 Pressure switch actuating 2 Free bulton-check spring and
bulton stuck open (in) pressure switch alignment
3 Pressure switch burned out 3 Replace pressure switch
4 Starting switch in motor bad 4 Install new starting switch
5 Motor burned out 5 Replace motor
6 Circuit breaker kicked out 6 Allow to re- set Replace it or faulty circuit breaker will not
automatically re-set
Motor runs-cam drive plate 1 Loose cam drive plate 1 Tighten set screw in cam will not turn drive plate Check woodruff key
2 Gear stripped 2 Replace gear
Pump will not shut off Mix 1 Pressure swilch actuating 1 Free button-check pressure shoots out pressure relief bulton stuck closed (out) switch alignment
2 Pressure switch stuck in 2 Replace pressure switch closed position
3 Pressure switch assy out 3 Using pressure gauge adjust of adjustment pressure
4 Dirty or plugged diaphragm 4 Disassemble and clean housing (Ref 42) housing
5 Defective O-Ring on 5 Replace O-Ring pressure relief piston
Pump will not prime 1 Insufficient supply of mix 1 Replenish mix supply
2 Piston O-ring defective-no 2 Replace piston O-Ring and suction lubricate
3 Washer valve not sealing 3 Replace washer valve DO NOT LUBRICATE
Pump primes No pressure in 1 Sleeve (Rei 29) not sealing 1 Replace sleeve DO NOT cylinder properly LUBRICATE
2 Loose hose connection on 2 Install or tighten hose clamp pump valve housing (Ref 27)
Mix shoots out Of air intake line 1 Washer valve (Ref 25) 1 Replace washer valve-DO not sealing properly NOT LUBRICATE
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOfT SERVE bull SHAKE bull SLUSH
47
48
TROUBLE-SHOOTING DPR PUMP
Too much air overrun too high-popping problems
Product dispenses slowly out of disPenSing head
1 Air meter too large (Ref 45)
2 Air leak befween mix conshytainer and mix inlet
3 Air line hose crackedshysucking air (Ref 44)
4 Pump pressure too lowshycylinder not full
1 Pump pressure too low
2 PrOduct too cold
3 Low overrun
Diaphragm housing leaking mix 1 Diaphragm housing loose
2 Diaphragm defective
Piston drive assy noisy 1 Bushing bearing worn
2 Defective gear in gear motor
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SIfAKE bull SLUSH
REMEDY
1 Replace washer valve-DO NOT LUBRICATE
2 Install clamp on hose
1 Replace O-Ring and LUBRIshyCATE
1 Clean or replace air meter
2 Replace tube
1 Install smaller air meier
2 Repair as needed
3 Replace air line hose
4 Using pressure gauge adjust pressure switch
1 Using pressure gauge adjust pump pressure
2 Check product temperatureshyshould be about 18 F
3 Check meter-if plugged-clean
1 Tighten wing nuls (Ref 41)
2 Replace diaphragm (Ref 43)
1 Replace bushing bearing (Ref 19)
2 Replace gear
TROUBLE
Mix inlet hose loses prime
Mix on top of piston
PROBABLE CAUSE
1 Washer valve (Ref 25) not sealing properly
2 Mix inlet hose loose
1 Piston O-Ring leaking (Ref 22)
No Air (Overrun) 11 Ai r meter plugged (Ref I 45)
2 Curved air tube pinched
--
DPR PUMP aI
PART NO 199019(i) PART NO 199020 reg DIAPHRAGM RUBBER SLEEVE
PART NO159295 PART NO 159282reg O-RING O-RING0
PART NO 160581reg O-RING
o PART NO PART NO
PART NO199011() 160611(8) 160582 WASHER VALVE O-RING O-RING
PISTON
cJ
DIAPHRAGM HOUSING
CYLINDER
VALVE HOUSIN6 ASSEMBLY
PUUPOUTLET
DRAIN PORT
I PHNO309-755-4553 O-RING CHART HCDUKEampSONINC I
1 I84Z08 SOFT SERVE DISPENSING HEADS I
o PART NO 1605620
PAR~159--1b
PART NO PART NO 1605841 59295()
I PHNO 309-755-4553 O-R ING CHART HCDUKEampSONINC I
- Cover
- Table of Contents
- Safety
- Uncrating amp Inspection13
- Explanation of Electrical Controls
- Operation of Machine
- General Information
- Maintenance amp Adjustment
- Parts Breakdowns
- Trouble-Shooting Charts
- O-ring Charts
-
ca ~ Q ltC wr w I
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2B
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SOFT-SERVE - SINGLE HEAD CAB
REF PART No 1 151351
2 3 4 5 6 151044
151052 7
8 155039 9 155400 10 155117
11 151084
12A 159021 13 155401 13A 155423 14 155403 15 155422
16 154976 16 154975 17 159203 18 155051 19 112901
155410 20 155044
151348
DESCRIPTION Capacitor Relay Assembly (single phase)
150247 Start Capacitor
150249 Run Capacitor 150245 Relay Motor Capacitors (order by freezer serial no) Gear Reducer (see gear reducer breakdown page 36) Driven Pulley (order by freezer serial no) Belt (order by freezer serial no) Motor 1-phase 230 volt Motor 3-phase 208230 volt Driver Pulley (order by freezer serial no)
Water Condenser Automatic Expansion Valve (Cylinder) Air Condenser
Condenser Fan Motor
Condenser Fan Blade High Pressure Cut-Out shyHigh Pressure Cut-Out shyLow Pressure Cut-Out Solenoid Valve
Compressor 230160
AC WC
Compressor 208-230360 Sight Glass Drier (38) Receiver Tank Assembly Water Valve (not shown) Service Valve Compressor Mounting Kit
Note I) lt0 For All 50-Cycle Freezers Order By Freezer Serial Number
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Printad I usA
30
c W -I o o o a w ~ 3
III
~ W -I III J o C
w gta w en u o en
SOFT-SERVE - DOUBLE CAB - WATER COOLED REF PART No DESCRIPTION 1 155026 Water Condenser (B-side) 1 A 155039 Water Condenser (A-side) 2 159203 Sight Glass 3 155051 Drier (38) 4 155400 Automatic Expansion Valve (Cylinder) 5 Gear Reducer (see gear reducer breakdown page 36) 6 155410 Water Valve 7 155423 High Pressure Cut-Out 8 155403 Low Pressure Cut-Out 9 154976 Compressor 230160
151351 Capacitor Relay Assembly (Single Phase) 150247 Start Capacitor 150249 Run Capacitor 150245 Relay
9A 154975 Compressor 208-230360~-11 NOT USED ON THIS MODEL 12 155442 Low Temp Control 13 Driven Pulley (order by freezer serial no) 14 Belt (order by freezer serial no) 15 Driver Pulley (order by freezer serial no) 16 155422 Solenoid Valve 17 151044 Motor 1 phase 230 volt 17A 151052 Motor 3 phase 208230 volt 18 Motor Capacitors single phase only (order by freezer serial no)
Note For All 50-Cycle Freezers Order By Freezer Serial Number
cgt
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH _InU5A
32
c W J o o o -a oCt
aI oCt o W I m ) o c w gta w Ch t--LL o Ch
SOFTmiddotSERVE bull DOUBLE CAB - AIR COOLED REF PART No 1 155120 2 159020 3 151080 4 155400 5 6 159203 7 155051 8 112901 9 151044 9A 151052 10 11 12 14 154976
14A 154975 15 155401 16 155403 17 155443 18 155442 19
21 155422
DESCRIPTION Condenser Fan Blade Fan Motor Automatic Expansion Valve (Cylinder) Reducer (see gear reducer breakdown page 36) Sight Glass Drier Receiver Assembly Motor 1-Phase 230 Volt Motor 3-Phase 208230 Volt Driven Pulley (order by freezer serial no) Belt (ordr by freezer serial no) Driver Pulley (order by freezer serial no) Compressor 230160 151351 Capacitor Relay Assembly (Single Phase)
150247 Start Capacitor 150249 Run Capacitor 150245 Relay
Compressor 208-230360 High Pressure Cut-Out Low Pressure Cut-Out Cabinet Thermostat Low Temp Thermostat NOT USED ON THIS MODEL Motor Capacitors single phase only (order by freezer serial no) Solenoid Valve
Note For All 50-Cycle Freezers Order By Freezer Serial Number
Vl Vl
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prinled In USA
CAB PARTS BREAKDOWN
REF PART No DESCRIPTION PART No DESCRIPTION 1 155109 Cabinet Coil 136297 Condensate Pan (Not Shown) 1A 155113 Motor Cabinet Fan 196092 Mix Tank 7-12 Gal 1B 155099 Fan Blade Cabinet Coil 113997 Front Lid Mix Container
7-12 Gal 136248-01 Rear Lid Mix Cont 7-12 Gal
10 155416 CAB Automatic Expansion 130092 Mix Tube Valve 196028 Mix Tank 10 Gal
137119 Probe 11 -1 4 shy1E 155114 Fan Grill amp Bracket 7-12 Gal Container 1F 155116 Knob 137119-01 Probe 10-34 shy2 113898 DPR Pump Less Motor 7-12 amp 10
(see pump breakdown Gal Container pg 38) 137119-02 Probe 10-14 shy
3 196061 Mix Hose (sold by the foot) 10 Gal Container 4 150416 Door Switch 137120 Base Probe Mtg 4A 114630 Actuator Door Switch 160500 O-Ring
(Not Shown) 114572 Hose Clamp (Not Shown) 5 150527 Retractable Cordset 34
MIg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prlmd UsA
MERCHANDISING ASSY
PART No 115108 115107
PART No
196107-01 196108-01 114610 114608 115132 199030
PART No 162105 162106 112978 158004 158021 158022 158078 158000 158056 158000A 158014 158014A 161000 158049
DESCRIPTION 2S Merchandiser-927-957-978CAB 24 Merchandiser-917CAB
DRIP TRAY
DESCRIPTION
24 Drip Tray-917CAB 26- Drip Tray-927-957-978CAB 24 Tray Insert-917CAD 26 Tray Insert-978CAB-927CAB 26 Tray Insert-957CAB Rubber Bumper (only)
DESCRIPTION Caster With Brake Caster Without Brake Leg-6 4 Cylinder Brush Mix Hose Brush 58 Dia w6 Ft Handle 14 Pump Brush Drain Tube Brush Petrol Gel (12 tube carton) Petrol Gel (6 tube carton) Pe1rol Gel (per tube) Stera Sheen (per case) Stera Sheen (per jar) Pocket Thermometer 1 Dial Z32 Overrun Scale
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SNAKE bull SLUSH
35
36
GEAR REDUCERS Order By Freezer Serial Number
Model 3 CB
153345 5-1 Ratio B side 153004 High Speed Cup ~ (2 ea required) 153005 High Speed Bearing (2 ea required) 153008 Slow Speed Cup (2 ea required) 153009 Slow Speed Bearing (2 ea required) 153052 Slow Speed Seal (2 ea required) 153054 High Speed Seal (2 ea required) 153313 Brass Gear 5-1 Ratio 153336 Slow Speed Shaft Only 5-1 Ratio 153316 Worm Gear On Shaft 5-1 Ratio 114873 Gasket Set
Model 4 CB
153342 10-1 Ratio A side 153343 10-1 Ratio B side
153014 High Speed Cup (2 ea required) 153015 High Speed Bearing (2 ea required) 153011 Slow Speed Cup (2 ea required) 153012 Slow Speed Bearing (2 ea required) 153051 Slow Speed Seal (2 ea required) 153053 High Speed Seal (2 ea required) 153349 Brass Gear 10-1 Ratio 153339 Slow Speed Shaft OnIy 10-1 Ratio 153347 Worm Gear on Shaft 10-1 Ratio 114874 Gasket Set
Winlwin Model
153341 Wintwin 10-1 Ratio A and B Side
153014 High Speed Cup (2 ea required) 153015 High Speed Bearing (2 ea required) 153011 Slow Speed Cup (2 ea required) 153012 Slow Speed Bearing (2 ea required) 153051 Slow Speed Seal (2 ea required) 153053 High Speed Seal (2 ea required) 153349 Brass Gear 153350 Slow Speed Shaft Only 153348 Worm Gear on Shaft 11 4874 Gasket Set
158055 Gear Reducer OU 51001
Drive Coupling (Order By Machine Serial Number)
Mfg by H C DUKE amp SON INC bull 2115 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
917 amp 927 Beater Shaft Assembly
957 Beater Shaft
Item Part No Description
1 196079 Bushing-Cylinder 2 114752 Beater-Assy Long (Shaft) 3 137334 Blade-Scraper Soft Serve 4- 160500 O-Ring (Shaft Seal) 5- 133098 Bushing (Washer-Shaft Seal) 6 160557 Seal-Beater Shaft
-Items 4-6 111875 Seal-Assy Shaft (Complete)
31
1 113438 2 196079 3 137334 4- 160500 5- 133098 6 160557
-Items 4-6 111875
Shaft-Assy Beater Bushing-Cylinder Blade-Scraper O-ring (Shaft Seal) Washer-Shaft Seal (Bushing) Seal-Beater Shaft (Cup)
Seal-Assy Shaft (Complete)
ao
DISPENSING HEAD
16
r
Q
--~
-----_
REF PART No DESCRIPTION Tl3o 6 119928- Door Assembly shy Complete (Items 7-14) 11637- 7 196688 Door shy Less Parts
a 134921 Spigot shy Less Extension 9 134922 Handle Extension shy Spigot
10 162624 Handle 11 159295 OmiddotRings shy Spigot (Lots of 5)12 159309 O-ring shy 4 - Door 13 196066 Air Relief Screw 14 160621 a-Ring shy Air Relief Screw (Lots of 5)15 136126 Rod - Spigot Switch shy 917 8 927 16 136798 HMdKnob
38
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illmols 61244
SUPERIOR QUAUlY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
Duke Soft Serve Freezer Models 917R and 927RN
5 -______
7
6
UPDATEDDispense Head Assembly
Item Part No
115130 1 116321 2 160583 3 115129 4 160562 5 136126 6 134921 SA 162624 68 134922 7 159295 8 160584 9 162625 9A 114341 10 196185 10A 137870 108 136713
116410
Includes items 1-4 6-8
Description
Head-Assy Dispense (Complete) Head-Assy wActualor O-ring (Head-4-inch) Bleeder-Assy (Air Relief Plug) O-ring (Bleeder-Assy) Rod-Spigot Switch Spigot-long Single Handle-Black Tapered Handle-Spigot (Stainless Steel) O-ring (Spigot) O-ring (Extension) Knob-Hand Stud-Assy Cylinder 1-15116 inch (not shown) Nouie-Slar Adapter (accessory) Adapter-Yogurt Nozzle (not shown) Extension-Spigot (accessory-cake not shown) Kit-Dispense Head Switch
( Use only original or authorized replacement parts with this freezer )
DISPENSING HEAD
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH uu
REF PART No 114765
1 196082 2 114313 3 137018 5 136618 6 162626 8 134499 9 162625
10 115129 11 136794 12 159309 13 159295 14 160562 15 136713 16 160584
DESCRIPTION Door Assy-Complete Door-Less Parts Spigot Assy-Side Spigot Only-Center Extension Only-Center Handle Stud-Handle Stop Hand Knob Air Re1ief-Assy Rod-Spigot Switch O-Ring-4-Door O-Ring-Spigot O-Ring-Air Relief Extension-Spigot a-Ring
39
40
PUMP MOTOR AND HOUSING ASSEMBLY SAFETY SWITCH ASSEMBLY
PRESSURE SWITCH ASSEMBLY ijreg~
I
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH IIIUaA
CAB DPR PUMP BREAKDOWN
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 196091 Pump Base 46 114009 Pump Cover 2 136088 Pump Support 47 113464 Base Bracket Assembly 3 150784 Strain Relief Bushing 48 135725 Stud 1-78 4 Power Cord 49 160131 516 Flatwasher 5 160075 10-24 x 38 Screw 50 160293 Speed Clip 6 135416 Cover Electric Box 51 135724 Button 7 160141 14 Lockwasher 52 160140 10 Lockwasher 8 160491 14-20 x 34 Socket Screw 53 135726 Stud 3 9 113497 Motor Cord 18-3 SJT 54 160109 10-24 Hex Nut 10 151127 Motor 40 RPM Soft Serve 55 135729 Switch Actuator 11 160023 14-20 x 1 Screw 56 135731 Stop - Max Pressure 12 153317 Half Moon Key 57 162315 Spring - Soft Serve 13 112925 Cam Drive Plate Assembly 58 160138 10 Flat Washer 14 160495 14-20 x 14 Set Screw 59 160304 10-24 Stop Nut 15 160369 Pin 60 150456 Pressure Switch 16 134614 Swing Clamp 61 135744 Insulator - Fiber 17 134521 Adjusting Clamp 62 160381 6-32 x 1 Socket Screw 18 160488 Thumb Screw 63 160393 6 Flatwasher 19 134604 Bearing Bushing 64 160146 6 Lockwasher 20 134602 Connecting Rod 65 160309 6-32 Hex Nut 21 134601 Piston 66 160006 6-32 x 14 Screw 22 159295 O-Ring 67 160001 8-32 x 38 Screw 23 134603 Wrist Pin 68 160470 8 Lockwasher 24 136089 Cylinder 69 150481 Circuit Breaker 25 199011 Washer Valve 70 135727 Switch Bracket 26 159282 O-Ring 71 136311 Spacer - Cover Switch 27 113839 Pump Valve Housing 72 160028 Truss Head Screw
Assembly (Metal) 14-20 x 34 SST 28 160582 O-Ring 73 160141 Lockwasher 14 29 199020 Sleeve Rubber 74 160104 Hex Nut 14-20 30 135793 Retainer Clip 75 136312 Button Guard 31 135791 Adapter Hose Outlet 76 160020 Hex Hd Cap Screw 32 160581 O-Ring 14-20 x 1 SST 33 135790 Piston 77 113869 Switch Bracket 34 162308 Spring Soft Serve 78 136110 Button Cover Switch 35 135792 Drain Port 79 162314 Spring 36 160611 O-Ring 80 150456 Switch Pump Safety 37 135896 Hose 24 81 135004 Switch Cover 38 160738 Hose Clamp 82 160296 Screw RH 39 136288 Keeper 6-32 x 1-14 40 160554 O-Ring 83 160146 Lockwasher 6 41 160368 Wing Nut Int Tooth 42 130054 Diaphragm Housing 84 160393 Flatwasher 6 43 199019 Diaphragm 85 160309 Hex Nut 6-32 44 196074 Air Tube-Curved 86 114572 Hose Clamp 45 163433 Air Meter - 20 87 160048 14-20 x 12 TRHM
(other sizes available) 88 160308 6-32 x 516 RDHM 89 114581 Circuit Breaker Bracket
Not Shown 90 163109 Stop Pivot 112791 DPR Pressure Gauge
41
Mfg by H C DUKE amp SON INC 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
42
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Unit does not operate 1 Fuse blown at main disconshy 1 Check fuse size check for low nect voltage if not within 10 of
nameplate rating install transformer or call power company
2 Beater motor out on overload 2 Press starter reset button and check for low voltage Check producllemperalure and overrun
3 Disconnected or broken wife 3 Check wiring and wire connecshyin electrical circuit lions repair or replace lead
wires as necessary
4 Faulty selector switch 4 Replace selector switch
5 Out on high pressure 5 Check for low waler supply or dirty air conden ser
6 Out on low pressure 6 Check limit control and freon charge
Compressor does not operate f Troubte in compressor con- I Refer to Trouble-Shootingshyor operates improperly densing circuit Compressor I Condensing
Circuit
2 Faulty capacitor assembly 2 Replace capaCitor assembly (Single phase only)
3 Faulty contactor 3 Replace contaclOr or pOints
Compressor operates but 1 Loose con neclion at motor 1 Tighten connection beater motor does not starter coil (electrical box)
2 Open starter coil 2 Replace coil
3 Faulty capacitor assembly 3 Replace capaCitor assembly (Single phase only)
Dispensed product too hard 1 Cylinder themostat erratic 1 Adjust thermo slat or replace or set too low
2 Faulty time delay relay 2 Replace time delay relay
3 Solenoid valve leaking 3 Replace solenoid valve
4 Low suction pressure 4 See chart on page 15 for adshyjustments
Leaking of mix from rear housshy 1 Damaged bealer shalt seal 1 Replace shaft seal or O-ring ing discharge tube to drip tray inside seal assy
Mig by H C DUKE amp SON INC bull 2116 Eighlh Avenue Easl Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Mix leaking at dispensing head 1 Faulty 4 O-Ring
2 Head not properly installed
1 Replace 4 O-Ring
2 Install head properly
Mix sours in cabinet 1 Cabinet thermostat setting too high
2 Cabinet thermostat detective
3 Cabinet solenoid valve deshyfective
4 Cabinet switch defective
5 Beater motor out on overshyload (cab side)
1 Adjust thermostat
2 Replace thermostat
3 Replace coil or solenoid
4 Replace cabinet switch
S Reset overload for beater motor See pg 42 unit does not operate
Cabinet too COld
Machine runs continually and Product continues to get colder
Compressor operates only when dispensing
Unit runs conMuously Product does nol reach 180 F temperature
6 Door sWitch defectIVe
1 Cabinet thermostat setting too low
2 Defective thermostat
3 Cabinet solenoid stuck open
4 Cabinet expansion valve set too low
1 Plunger switch out of adjustshyment
2 Su ction pressure too low
3 Defective plunger switch
4 Plunger switch rod engaged
5 Faulty time delay relay
6 Starter or relay contacts stuck
7 Faulty thermostat or bulb not deep enough in well
6 Replace door SWitch
1 Adjust thermostat
2 Replace thermostat
3 Replace solenoid
4 Adjust cabinet expansion valve (See pg 15)
1 Adjust plunger switch
2 Adjust expansion valve and check freon charge
3 Replace plunger switch
4 Close plunger completely
5 Replace time delay relay
I 6 Check contacts i
7 Check bulb location or replace thermostat
1 Cylinder themostat setting 1 Adjust thermostat or replace too high or thermostat deshyfective
1 Trouble in compressor I condensing system
2 ExpanSion valve setiing is too high
3 Low on refrigeranl
1 See Trouble-Shooling-CompressorI Condensing circuit
2 Adjust expansion valve
3 Check and repair leak and recharge
1
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE SLUSHbull
43
44
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Dispensed product too soft (Product temperature above 21 0 F)
1 Automatic expansion yalve incorrectly set or erratic in operation
-2 Leak in refrigeration system
resulting in little or no refrigeration
1 Adjust or replace expanSion valve
2 Pump down system or remove refrigerant charge repair leak evacuate and recharge
3 Excessive oil in system 3 Drain compressor to proper oil leyel pump down and flush system
4 Thermostat set too high taulty
or 4 Adiust thermostat or replace
Product dispenses slOWly out dispensing head
1 Reverse rotation 1 Change rotation to clockshywise from front of freezer
2 Dispensing speed adjustshyment boll too far down
2 Adjust bolt upward
3 Pum p problem 3 See pump Trouble-Shooting chart
4 Product too cold 4 See dispensed product too hard pg42
TROUBLE-SHOOTING CHART COMPRESSORICONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor will not start -hums intermittently (cycling on oyerload)
1 Improperly wired
2 Low line Yoltage
3 Open starting capacitor (single phase only)
4 High discharge pressure
1 Check wiring against diagram
2 Ask power company to increase YOltage to not less than 10 below nameplate rating or install transformer Check for inadequate wire size
3 Replace starting capacitor
4 CheCK water regulating valve setting Check water or air condenser and clean if necessary Make sure disshycharge shut-oft valve is open
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor starts but remains 1 Low line voltage 1 Ask power company to in start windings increase voltage to not less (Single phase only) than 10 below nameplate
rating or install transrormer
2 Improperly wired 2 Check wiring against drawing Check wire size
3 Running capacitor shorted 3 Check by disconnecting running capacitor
4 Starting capacitor weak 4 Check capacitor replace
5 High disCharge pressure 5 Check water regulating valve check water or air condenser and clean il necessary Check discharge shut-off valve
Starter burned out 1 Low line voltage 1 Ask power company to inshycrease voltage to not less than 10 below nameplate rating or install transformer
2 Excessive line voltage 2 Ask power company to reduce voltage to maximum of 10 over nameplate rating
Starting capacitors burn out 1 Voltage 100 low 1 Ask power company to (Single phase only) increase voltage to not less
than 10 below nameplate rating or install translonmer
2 Improper capacitor 2 Replace capacitor with properly rated capacitor as listed in manual
Running capacitors burn out 1 Excessive line voltage 1 Ask power company to reshy(Single phase only) duce line voltage to not more
than 10 above rating 01 motor
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
45
46
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Unit operates long or continuously
1 Shortage of gas
2 Dirty condenser
3 Moisture in system
4 Compressor failing
1 Repair leak and recharge
2 Clean condenser
3 Evacuate and recharge system
4 Check compressor lor proper pressures If inadequate replace compressor
Head pressure too high 1 Refrigerant overcharge
2 Air in system
3 Dirty condenser (air cooled)
4 Unit location too warm (air cooled)
5 Restricted water cooled condenser
6 Water turned off or defective
1 Purge system
2 Purge system evacuate and recharge
3 Clean condenser
4 Relocate unIt away from restriction Place nothing against back or on top of unit
5 Clean or replace condenser
6 Turn on water Or replace water regulating valve regulating valve
Head pressure too low 1 Shortage 01 refrigerant 1 Repair leak and recharge
2 Water regulating valve open 2 Adjust regulating valve too wide
Water 1I0wing through water 1 Water regulating valve 1 Replace water regulating valve waste line when unit is not in operation
defective
Noisy compressor 1 Tubing raUle 1 Bend tubes away from contact
NOTE Refer to warranty card prior to compressor replacement
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING DPR PUMP
TROUBLE PROBABLE CAUSE REMEDY
Pump will not run 1 Pump cover removed 1 Install pump cover
2 Pressure switch actuating 2 Free bulton-check spring and
bulton stuck open (in) pressure switch alignment
3 Pressure switch burned out 3 Replace pressure switch
4 Starting switch in motor bad 4 Install new starting switch
5 Motor burned out 5 Replace motor
6 Circuit breaker kicked out 6 Allow to re- set Replace it or faulty circuit breaker will not
automatically re-set
Motor runs-cam drive plate 1 Loose cam drive plate 1 Tighten set screw in cam will not turn drive plate Check woodruff key
2 Gear stripped 2 Replace gear
Pump will not shut off Mix 1 Pressure swilch actuating 1 Free button-check pressure shoots out pressure relief bulton stuck closed (out) switch alignment
2 Pressure switch stuck in 2 Replace pressure switch closed position
3 Pressure switch assy out 3 Using pressure gauge adjust of adjustment pressure
4 Dirty or plugged diaphragm 4 Disassemble and clean housing (Ref 42) housing
5 Defective O-Ring on 5 Replace O-Ring pressure relief piston
Pump will not prime 1 Insufficient supply of mix 1 Replenish mix supply
2 Piston O-ring defective-no 2 Replace piston O-Ring and suction lubricate
3 Washer valve not sealing 3 Replace washer valve DO NOT LUBRICATE
Pump primes No pressure in 1 Sleeve (Rei 29) not sealing 1 Replace sleeve DO NOT cylinder properly LUBRICATE
2 Loose hose connection on 2 Install or tighten hose clamp pump valve housing (Ref 27)
Mix shoots out Of air intake line 1 Washer valve (Ref 25) 1 Replace washer valve-DO not sealing properly NOT LUBRICATE
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOfT SERVE bull SHAKE bull SLUSH
47
48
TROUBLE-SHOOTING DPR PUMP
Too much air overrun too high-popping problems
Product dispenses slowly out of disPenSing head
1 Air meter too large (Ref 45)
2 Air leak befween mix conshytainer and mix inlet
3 Air line hose crackedshysucking air (Ref 44)
4 Pump pressure too lowshycylinder not full
1 Pump pressure too low
2 PrOduct too cold
3 Low overrun
Diaphragm housing leaking mix 1 Diaphragm housing loose
2 Diaphragm defective
Piston drive assy noisy 1 Bushing bearing worn
2 Defective gear in gear motor
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SIfAKE bull SLUSH
REMEDY
1 Replace washer valve-DO NOT LUBRICATE
2 Install clamp on hose
1 Replace O-Ring and LUBRIshyCATE
1 Clean or replace air meter
2 Replace tube
1 Install smaller air meier
2 Repair as needed
3 Replace air line hose
4 Using pressure gauge adjust pressure switch
1 Using pressure gauge adjust pump pressure
2 Check product temperatureshyshould be about 18 F
3 Check meter-if plugged-clean
1 Tighten wing nuls (Ref 41)
2 Replace diaphragm (Ref 43)
1 Replace bushing bearing (Ref 19)
2 Replace gear
TROUBLE
Mix inlet hose loses prime
Mix on top of piston
PROBABLE CAUSE
1 Washer valve (Ref 25) not sealing properly
2 Mix inlet hose loose
1 Piston O-Ring leaking (Ref 22)
No Air (Overrun) 11 Ai r meter plugged (Ref I 45)
2 Curved air tube pinched
--
DPR PUMP aI
PART NO 199019(i) PART NO 199020 reg DIAPHRAGM RUBBER SLEEVE
PART NO159295 PART NO 159282reg O-RING O-RING0
PART NO 160581reg O-RING
o PART NO PART NO
PART NO199011() 160611(8) 160582 WASHER VALVE O-RING O-RING
PISTON
cJ
DIAPHRAGM HOUSING
CYLINDER
VALVE HOUSIN6 ASSEMBLY
PUUPOUTLET
DRAIN PORT
I PHNO309-755-4553 O-RING CHART HCDUKEampSONINC I
1 I84Z08 SOFT SERVE DISPENSING HEADS I
o PART NO 1605620
PAR~159--1b
PART NO PART NO 1605841 59295()
I PHNO 309-755-4553 O-R ING CHART HCDUKEampSONINC I
- Cover
- Table of Contents
- Safety
- Uncrating amp Inspection13
- Explanation of Electrical Controls
- Operation of Machine
- General Information
- Maintenance amp Adjustment
- Parts Breakdowns
- Trouble-Shooting Charts
- O-ring Charts
-
SOFT-SERVE - SINGLE HEAD CAB
REF PART No 1 151351
2 3 4 5 6 151044
151052 7
8 155039 9 155400 10 155117
11 151084
12A 159021 13 155401 13A 155423 14 155403 15 155422
16 154976 16 154975 17 159203 18 155051 19 112901
155410 20 155044
151348
DESCRIPTION Capacitor Relay Assembly (single phase)
150247 Start Capacitor
150249 Run Capacitor 150245 Relay Motor Capacitors (order by freezer serial no) Gear Reducer (see gear reducer breakdown page 36) Driven Pulley (order by freezer serial no) Belt (order by freezer serial no) Motor 1-phase 230 volt Motor 3-phase 208230 volt Driver Pulley (order by freezer serial no)
Water Condenser Automatic Expansion Valve (Cylinder) Air Condenser
Condenser Fan Motor
Condenser Fan Blade High Pressure Cut-Out shyHigh Pressure Cut-Out shyLow Pressure Cut-Out Solenoid Valve
Compressor 230160
AC WC
Compressor 208-230360 Sight Glass Drier (38) Receiver Tank Assembly Water Valve (not shown) Service Valve Compressor Mounting Kit
Note I) lt0 For All 50-Cycle Freezers Order By Freezer Serial Number
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Printad I usA
30
c W -I o o o a w ~ 3
III
~ W -I III J o C
w gta w en u o en
SOFT-SERVE - DOUBLE CAB - WATER COOLED REF PART No DESCRIPTION 1 155026 Water Condenser (B-side) 1 A 155039 Water Condenser (A-side) 2 159203 Sight Glass 3 155051 Drier (38) 4 155400 Automatic Expansion Valve (Cylinder) 5 Gear Reducer (see gear reducer breakdown page 36) 6 155410 Water Valve 7 155423 High Pressure Cut-Out 8 155403 Low Pressure Cut-Out 9 154976 Compressor 230160
151351 Capacitor Relay Assembly (Single Phase) 150247 Start Capacitor 150249 Run Capacitor 150245 Relay
9A 154975 Compressor 208-230360~-11 NOT USED ON THIS MODEL 12 155442 Low Temp Control 13 Driven Pulley (order by freezer serial no) 14 Belt (order by freezer serial no) 15 Driver Pulley (order by freezer serial no) 16 155422 Solenoid Valve 17 151044 Motor 1 phase 230 volt 17A 151052 Motor 3 phase 208230 volt 18 Motor Capacitors single phase only (order by freezer serial no)
Note For All 50-Cycle Freezers Order By Freezer Serial Number
cgt
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH _InU5A
32
c W J o o o -a oCt
aI oCt o W I m ) o c w gta w Ch t--LL o Ch
SOFTmiddotSERVE bull DOUBLE CAB - AIR COOLED REF PART No 1 155120 2 159020 3 151080 4 155400 5 6 159203 7 155051 8 112901 9 151044 9A 151052 10 11 12 14 154976
14A 154975 15 155401 16 155403 17 155443 18 155442 19
21 155422
DESCRIPTION Condenser Fan Blade Fan Motor Automatic Expansion Valve (Cylinder) Reducer (see gear reducer breakdown page 36) Sight Glass Drier Receiver Assembly Motor 1-Phase 230 Volt Motor 3-Phase 208230 Volt Driven Pulley (order by freezer serial no) Belt (ordr by freezer serial no) Driver Pulley (order by freezer serial no) Compressor 230160 151351 Capacitor Relay Assembly (Single Phase)
150247 Start Capacitor 150249 Run Capacitor 150245 Relay
Compressor 208-230360 High Pressure Cut-Out Low Pressure Cut-Out Cabinet Thermostat Low Temp Thermostat NOT USED ON THIS MODEL Motor Capacitors single phase only (order by freezer serial no) Solenoid Valve
Note For All 50-Cycle Freezers Order By Freezer Serial Number
Vl Vl
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prinled In USA
CAB PARTS BREAKDOWN
REF PART No DESCRIPTION PART No DESCRIPTION 1 155109 Cabinet Coil 136297 Condensate Pan (Not Shown) 1A 155113 Motor Cabinet Fan 196092 Mix Tank 7-12 Gal 1B 155099 Fan Blade Cabinet Coil 113997 Front Lid Mix Container
7-12 Gal 136248-01 Rear Lid Mix Cont 7-12 Gal
10 155416 CAB Automatic Expansion 130092 Mix Tube Valve 196028 Mix Tank 10 Gal
137119 Probe 11 -1 4 shy1E 155114 Fan Grill amp Bracket 7-12 Gal Container 1F 155116 Knob 137119-01 Probe 10-34 shy2 113898 DPR Pump Less Motor 7-12 amp 10
(see pump breakdown Gal Container pg 38) 137119-02 Probe 10-14 shy
3 196061 Mix Hose (sold by the foot) 10 Gal Container 4 150416 Door Switch 137120 Base Probe Mtg 4A 114630 Actuator Door Switch 160500 O-Ring
(Not Shown) 114572 Hose Clamp (Not Shown) 5 150527 Retractable Cordset 34
MIg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prlmd UsA
MERCHANDISING ASSY
PART No 115108 115107
PART No
196107-01 196108-01 114610 114608 115132 199030
PART No 162105 162106 112978 158004 158021 158022 158078 158000 158056 158000A 158014 158014A 161000 158049
DESCRIPTION 2S Merchandiser-927-957-978CAB 24 Merchandiser-917CAB
DRIP TRAY
DESCRIPTION
24 Drip Tray-917CAB 26- Drip Tray-927-957-978CAB 24 Tray Insert-917CAD 26 Tray Insert-978CAB-927CAB 26 Tray Insert-957CAB Rubber Bumper (only)
DESCRIPTION Caster With Brake Caster Without Brake Leg-6 4 Cylinder Brush Mix Hose Brush 58 Dia w6 Ft Handle 14 Pump Brush Drain Tube Brush Petrol Gel (12 tube carton) Petrol Gel (6 tube carton) Pe1rol Gel (per tube) Stera Sheen (per case) Stera Sheen (per jar) Pocket Thermometer 1 Dial Z32 Overrun Scale
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SNAKE bull SLUSH
35
36
GEAR REDUCERS Order By Freezer Serial Number
Model 3 CB
153345 5-1 Ratio B side 153004 High Speed Cup ~ (2 ea required) 153005 High Speed Bearing (2 ea required) 153008 Slow Speed Cup (2 ea required) 153009 Slow Speed Bearing (2 ea required) 153052 Slow Speed Seal (2 ea required) 153054 High Speed Seal (2 ea required) 153313 Brass Gear 5-1 Ratio 153336 Slow Speed Shaft Only 5-1 Ratio 153316 Worm Gear On Shaft 5-1 Ratio 114873 Gasket Set
Model 4 CB
153342 10-1 Ratio A side 153343 10-1 Ratio B side
153014 High Speed Cup (2 ea required) 153015 High Speed Bearing (2 ea required) 153011 Slow Speed Cup (2 ea required) 153012 Slow Speed Bearing (2 ea required) 153051 Slow Speed Seal (2 ea required) 153053 High Speed Seal (2 ea required) 153349 Brass Gear 10-1 Ratio 153339 Slow Speed Shaft OnIy 10-1 Ratio 153347 Worm Gear on Shaft 10-1 Ratio 114874 Gasket Set
Winlwin Model
153341 Wintwin 10-1 Ratio A and B Side
153014 High Speed Cup (2 ea required) 153015 High Speed Bearing (2 ea required) 153011 Slow Speed Cup (2 ea required) 153012 Slow Speed Bearing (2 ea required) 153051 Slow Speed Seal (2 ea required) 153053 High Speed Seal (2 ea required) 153349 Brass Gear 153350 Slow Speed Shaft Only 153348 Worm Gear on Shaft 11 4874 Gasket Set
158055 Gear Reducer OU 51001
Drive Coupling (Order By Machine Serial Number)
Mfg by H C DUKE amp SON INC bull 2115 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
917 amp 927 Beater Shaft Assembly
957 Beater Shaft
Item Part No Description
1 196079 Bushing-Cylinder 2 114752 Beater-Assy Long (Shaft) 3 137334 Blade-Scraper Soft Serve 4- 160500 O-Ring (Shaft Seal) 5- 133098 Bushing (Washer-Shaft Seal) 6 160557 Seal-Beater Shaft
-Items 4-6 111875 Seal-Assy Shaft (Complete)
31
1 113438 2 196079 3 137334 4- 160500 5- 133098 6 160557
-Items 4-6 111875
Shaft-Assy Beater Bushing-Cylinder Blade-Scraper O-ring (Shaft Seal) Washer-Shaft Seal (Bushing) Seal-Beater Shaft (Cup)
Seal-Assy Shaft (Complete)
ao
DISPENSING HEAD
16
r
Q
--~
-----_
REF PART No DESCRIPTION Tl3o 6 119928- Door Assembly shy Complete (Items 7-14) 11637- 7 196688 Door shy Less Parts
a 134921 Spigot shy Less Extension 9 134922 Handle Extension shy Spigot
10 162624 Handle 11 159295 OmiddotRings shy Spigot (Lots of 5)12 159309 O-ring shy 4 - Door 13 196066 Air Relief Screw 14 160621 a-Ring shy Air Relief Screw (Lots of 5)15 136126 Rod - Spigot Switch shy 917 8 927 16 136798 HMdKnob
38
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illmols 61244
SUPERIOR QUAUlY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
Duke Soft Serve Freezer Models 917R and 927RN
5 -______
7
6
UPDATEDDispense Head Assembly
Item Part No
115130 1 116321 2 160583 3 115129 4 160562 5 136126 6 134921 SA 162624 68 134922 7 159295 8 160584 9 162625 9A 114341 10 196185 10A 137870 108 136713
116410
Includes items 1-4 6-8
Description
Head-Assy Dispense (Complete) Head-Assy wActualor O-ring (Head-4-inch) Bleeder-Assy (Air Relief Plug) O-ring (Bleeder-Assy) Rod-Spigot Switch Spigot-long Single Handle-Black Tapered Handle-Spigot (Stainless Steel) O-ring (Spigot) O-ring (Extension) Knob-Hand Stud-Assy Cylinder 1-15116 inch (not shown) Nouie-Slar Adapter (accessory) Adapter-Yogurt Nozzle (not shown) Extension-Spigot (accessory-cake not shown) Kit-Dispense Head Switch
( Use only original or authorized replacement parts with this freezer )
DISPENSING HEAD
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH uu
REF PART No 114765
1 196082 2 114313 3 137018 5 136618 6 162626 8 134499 9 162625
10 115129 11 136794 12 159309 13 159295 14 160562 15 136713 16 160584
DESCRIPTION Door Assy-Complete Door-Less Parts Spigot Assy-Side Spigot Only-Center Extension Only-Center Handle Stud-Handle Stop Hand Knob Air Re1ief-Assy Rod-Spigot Switch O-Ring-4-Door O-Ring-Spigot O-Ring-Air Relief Extension-Spigot a-Ring
39
40
PUMP MOTOR AND HOUSING ASSEMBLY SAFETY SWITCH ASSEMBLY
PRESSURE SWITCH ASSEMBLY ijreg~
I
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH IIIUaA
CAB DPR PUMP BREAKDOWN
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 196091 Pump Base 46 114009 Pump Cover 2 136088 Pump Support 47 113464 Base Bracket Assembly 3 150784 Strain Relief Bushing 48 135725 Stud 1-78 4 Power Cord 49 160131 516 Flatwasher 5 160075 10-24 x 38 Screw 50 160293 Speed Clip 6 135416 Cover Electric Box 51 135724 Button 7 160141 14 Lockwasher 52 160140 10 Lockwasher 8 160491 14-20 x 34 Socket Screw 53 135726 Stud 3 9 113497 Motor Cord 18-3 SJT 54 160109 10-24 Hex Nut 10 151127 Motor 40 RPM Soft Serve 55 135729 Switch Actuator 11 160023 14-20 x 1 Screw 56 135731 Stop - Max Pressure 12 153317 Half Moon Key 57 162315 Spring - Soft Serve 13 112925 Cam Drive Plate Assembly 58 160138 10 Flat Washer 14 160495 14-20 x 14 Set Screw 59 160304 10-24 Stop Nut 15 160369 Pin 60 150456 Pressure Switch 16 134614 Swing Clamp 61 135744 Insulator - Fiber 17 134521 Adjusting Clamp 62 160381 6-32 x 1 Socket Screw 18 160488 Thumb Screw 63 160393 6 Flatwasher 19 134604 Bearing Bushing 64 160146 6 Lockwasher 20 134602 Connecting Rod 65 160309 6-32 Hex Nut 21 134601 Piston 66 160006 6-32 x 14 Screw 22 159295 O-Ring 67 160001 8-32 x 38 Screw 23 134603 Wrist Pin 68 160470 8 Lockwasher 24 136089 Cylinder 69 150481 Circuit Breaker 25 199011 Washer Valve 70 135727 Switch Bracket 26 159282 O-Ring 71 136311 Spacer - Cover Switch 27 113839 Pump Valve Housing 72 160028 Truss Head Screw
Assembly (Metal) 14-20 x 34 SST 28 160582 O-Ring 73 160141 Lockwasher 14 29 199020 Sleeve Rubber 74 160104 Hex Nut 14-20 30 135793 Retainer Clip 75 136312 Button Guard 31 135791 Adapter Hose Outlet 76 160020 Hex Hd Cap Screw 32 160581 O-Ring 14-20 x 1 SST 33 135790 Piston 77 113869 Switch Bracket 34 162308 Spring Soft Serve 78 136110 Button Cover Switch 35 135792 Drain Port 79 162314 Spring 36 160611 O-Ring 80 150456 Switch Pump Safety 37 135896 Hose 24 81 135004 Switch Cover 38 160738 Hose Clamp 82 160296 Screw RH 39 136288 Keeper 6-32 x 1-14 40 160554 O-Ring 83 160146 Lockwasher 6 41 160368 Wing Nut Int Tooth 42 130054 Diaphragm Housing 84 160393 Flatwasher 6 43 199019 Diaphragm 85 160309 Hex Nut 6-32 44 196074 Air Tube-Curved 86 114572 Hose Clamp 45 163433 Air Meter - 20 87 160048 14-20 x 12 TRHM
(other sizes available) 88 160308 6-32 x 516 RDHM 89 114581 Circuit Breaker Bracket
Not Shown 90 163109 Stop Pivot 112791 DPR Pressure Gauge
41
Mfg by H C DUKE amp SON INC 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
42
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Unit does not operate 1 Fuse blown at main disconshy 1 Check fuse size check for low nect voltage if not within 10 of
nameplate rating install transformer or call power company
2 Beater motor out on overload 2 Press starter reset button and check for low voltage Check producllemperalure and overrun
3 Disconnected or broken wife 3 Check wiring and wire connecshyin electrical circuit lions repair or replace lead
wires as necessary
4 Faulty selector switch 4 Replace selector switch
5 Out on high pressure 5 Check for low waler supply or dirty air conden ser
6 Out on low pressure 6 Check limit control and freon charge
Compressor does not operate f Troubte in compressor con- I Refer to Trouble-Shootingshyor operates improperly densing circuit Compressor I Condensing
Circuit
2 Faulty capacitor assembly 2 Replace capaCitor assembly (Single phase only)
3 Faulty contactor 3 Replace contaclOr or pOints
Compressor operates but 1 Loose con neclion at motor 1 Tighten connection beater motor does not starter coil (electrical box)
2 Open starter coil 2 Replace coil
3 Faulty capacitor assembly 3 Replace capaCitor assembly (Single phase only)
Dispensed product too hard 1 Cylinder themostat erratic 1 Adjust thermo slat or replace or set too low
2 Faulty time delay relay 2 Replace time delay relay
3 Solenoid valve leaking 3 Replace solenoid valve
4 Low suction pressure 4 See chart on page 15 for adshyjustments
Leaking of mix from rear housshy 1 Damaged bealer shalt seal 1 Replace shaft seal or O-ring ing discharge tube to drip tray inside seal assy
Mig by H C DUKE amp SON INC bull 2116 Eighlh Avenue Easl Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Mix leaking at dispensing head 1 Faulty 4 O-Ring
2 Head not properly installed
1 Replace 4 O-Ring
2 Install head properly
Mix sours in cabinet 1 Cabinet thermostat setting too high
2 Cabinet thermostat detective
3 Cabinet solenoid valve deshyfective
4 Cabinet switch defective
5 Beater motor out on overshyload (cab side)
1 Adjust thermostat
2 Replace thermostat
3 Replace coil or solenoid
4 Replace cabinet switch
S Reset overload for beater motor See pg 42 unit does not operate
Cabinet too COld
Machine runs continually and Product continues to get colder
Compressor operates only when dispensing
Unit runs conMuously Product does nol reach 180 F temperature
6 Door sWitch defectIVe
1 Cabinet thermostat setting too low
2 Defective thermostat
3 Cabinet solenoid stuck open
4 Cabinet expansion valve set too low
1 Plunger switch out of adjustshyment
2 Su ction pressure too low
3 Defective plunger switch
4 Plunger switch rod engaged
5 Faulty time delay relay
6 Starter or relay contacts stuck
7 Faulty thermostat or bulb not deep enough in well
6 Replace door SWitch
1 Adjust thermostat
2 Replace thermostat
3 Replace solenoid
4 Adjust cabinet expansion valve (See pg 15)
1 Adjust plunger switch
2 Adjust expansion valve and check freon charge
3 Replace plunger switch
4 Close plunger completely
5 Replace time delay relay
I 6 Check contacts i
7 Check bulb location or replace thermostat
1 Cylinder themostat setting 1 Adjust thermostat or replace too high or thermostat deshyfective
1 Trouble in compressor I condensing system
2 ExpanSion valve setiing is too high
3 Low on refrigeranl
1 See Trouble-Shooling-CompressorI Condensing circuit
2 Adjust expansion valve
3 Check and repair leak and recharge
1
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE SLUSHbull
43
44
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Dispensed product too soft (Product temperature above 21 0 F)
1 Automatic expansion yalve incorrectly set or erratic in operation
-2 Leak in refrigeration system
resulting in little or no refrigeration
1 Adjust or replace expanSion valve
2 Pump down system or remove refrigerant charge repair leak evacuate and recharge
3 Excessive oil in system 3 Drain compressor to proper oil leyel pump down and flush system
4 Thermostat set too high taulty
or 4 Adiust thermostat or replace
Product dispenses slOWly out dispensing head
1 Reverse rotation 1 Change rotation to clockshywise from front of freezer
2 Dispensing speed adjustshyment boll too far down
2 Adjust bolt upward
3 Pum p problem 3 See pump Trouble-Shooting chart
4 Product too cold 4 See dispensed product too hard pg42
TROUBLE-SHOOTING CHART COMPRESSORICONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor will not start -hums intermittently (cycling on oyerload)
1 Improperly wired
2 Low line Yoltage
3 Open starting capacitor (single phase only)
4 High discharge pressure
1 Check wiring against diagram
2 Ask power company to increase YOltage to not less than 10 below nameplate rating or install transformer Check for inadequate wire size
3 Replace starting capacitor
4 CheCK water regulating valve setting Check water or air condenser and clean if necessary Make sure disshycharge shut-oft valve is open
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor starts but remains 1 Low line voltage 1 Ask power company to in start windings increase voltage to not less (Single phase only) than 10 below nameplate
rating or install transrormer
2 Improperly wired 2 Check wiring against drawing Check wire size
3 Running capacitor shorted 3 Check by disconnecting running capacitor
4 Starting capacitor weak 4 Check capacitor replace
5 High disCharge pressure 5 Check water regulating valve check water or air condenser and clean il necessary Check discharge shut-off valve
Starter burned out 1 Low line voltage 1 Ask power company to inshycrease voltage to not less than 10 below nameplate rating or install transformer
2 Excessive line voltage 2 Ask power company to reduce voltage to maximum of 10 over nameplate rating
Starting capacitors burn out 1 Voltage 100 low 1 Ask power company to (Single phase only) increase voltage to not less
than 10 below nameplate rating or install translonmer
2 Improper capacitor 2 Replace capacitor with properly rated capacitor as listed in manual
Running capacitors burn out 1 Excessive line voltage 1 Ask power company to reshy(Single phase only) duce line voltage to not more
than 10 above rating 01 motor
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
45
46
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Unit operates long or continuously
1 Shortage of gas
2 Dirty condenser
3 Moisture in system
4 Compressor failing
1 Repair leak and recharge
2 Clean condenser
3 Evacuate and recharge system
4 Check compressor lor proper pressures If inadequate replace compressor
Head pressure too high 1 Refrigerant overcharge
2 Air in system
3 Dirty condenser (air cooled)
4 Unit location too warm (air cooled)
5 Restricted water cooled condenser
6 Water turned off or defective
1 Purge system
2 Purge system evacuate and recharge
3 Clean condenser
4 Relocate unIt away from restriction Place nothing against back or on top of unit
5 Clean or replace condenser
6 Turn on water Or replace water regulating valve regulating valve
Head pressure too low 1 Shortage 01 refrigerant 1 Repair leak and recharge
2 Water regulating valve open 2 Adjust regulating valve too wide
Water 1I0wing through water 1 Water regulating valve 1 Replace water regulating valve waste line when unit is not in operation
defective
Noisy compressor 1 Tubing raUle 1 Bend tubes away from contact
NOTE Refer to warranty card prior to compressor replacement
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING DPR PUMP
TROUBLE PROBABLE CAUSE REMEDY
Pump will not run 1 Pump cover removed 1 Install pump cover
2 Pressure switch actuating 2 Free bulton-check spring and
bulton stuck open (in) pressure switch alignment
3 Pressure switch burned out 3 Replace pressure switch
4 Starting switch in motor bad 4 Install new starting switch
5 Motor burned out 5 Replace motor
6 Circuit breaker kicked out 6 Allow to re- set Replace it or faulty circuit breaker will not
automatically re-set
Motor runs-cam drive plate 1 Loose cam drive plate 1 Tighten set screw in cam will not turn drive plate Check woodruff key
2 Gear stripped 2 Replace gear
Pump will not shut off Mix 1 Pressure swilch actuating 1 Free button-check pressure shoots out pressure relief bulton stuck closed (out) switch alignment
2 Pressure switch stuck in 2 Replace pressure switch closed position
3 Pressure switch assy out 3 Using pressure gauge adjust of adjustment pressure
4 Dirty or plugged diaphragm 4 Disassemble and clean housing (Ref 42) housing
5 Defective O-Ring on 5 Replace O-Ring pressure relief piston
Pump will not prime 1 Insufficient supply of mix 1 Replenish mix supply
2 Piston O-ring defective-no 2 Replace piston O-Ring and suction lubricate
3 Washer valve not sealing 3 Replace washer valve DO NOT LUBRICATE
Pump primes No pressure in 1 Sleeve (Rei 29) not sealing 1 Replace sleeve DO NOT cylinder properly LUBRICATE
2 Loose hose connection on 2 Install or tighten hose clamp pump valve housing (Ref 27)
Mix shoots out Of air intake line 1 Washer valve (Ref 25) 1 Replace washer valve-DO not sealing properly NOT LUBRICATE
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOfT SERVE bull SHAKE bull SLUSH
47
48
TROUBLE-SHOOTING DPR PUMP
Too much air overrun too high-popping problems
Product dispenses slowly out of disPenSing head
1 Air meter too large (Ref 45)
2 Air leak befween mix conshytainer and mix inlet
3 Air line hose crackedshysucking air (Ref 44)
4 Pump pressure too lowshycylinder not full
1 Pump pressure too low
2 PrOduct too cold
3 Low overrun
Diaphragm housing leaking mix 1 Diaphragm housing loose
2 Diaphragm defective
Piston drive assy noisy 1 Bushing bearing worn
2 Defective gear in gear motor
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SIfAKE bull SLUSH
REMEDY
1 Replace washer valve-DO NOT LUBRICATE
2 Install clamp on hose
1 Replace O-Ring and LUBRIshyCATE
1 Clean or replace air meter
2 Replace tube
1 Install smaller air meier
2 Repair as needed
3 Replace air line hose
4 Using pressure gauge adjust pressure switch
1 Using pressure gauge adjust pump pressure
2 Check product temperatureshyshould be about 18 F
3 Check meter-if plugged-clean
1 Tighten wing nuls (Ref 41)
2 Replace diaphragm (Ref 43)
1 Replace bushing bearing (Ref 19)
2 Replace gear
TROUBLE
Mix inlet hose loses prime
Mix on top of piston
PROBABLE CAUSE
1 Washer valve (Ref 25) not sealing properly
2 Mix inlet hose loose
1 Piston O-Ring leaking (Ref 22)
No Air (Overrun) 11 Ai r meter plugged (Ref I 45)
2 Curved air tube pinched
--
DPR PUMP aI
PART NO 199019(i) PART NO 199020 reg DIAPHRAGM RUBBER SLEEVE
PART NO159295 PART NO 159282reg O-RING O-RING0
PART NO 160581reg O-RING
o PART NO PART NO
PART NO199011() 160611(8) 160582 WASHER VALVE O-RING O-RING
PISTON
cJ
DIAPHRAGM HOUSING
CYLINDER
VALVE HOUSIN6 ASSEMBLY
PUUPOUTLET
DRAIN PORT
I PHNO309-755-4553 O-RING CHART HCDUKEampSONINC I
1 I84Z08 SOFT SERVE DISPENSING HEADS I
o PART NO 1605620
PAR~159--1b
PART NO PART NO 1605841 59295()
I PHNO 309-755-4553 O-R ING CHART HCDUKEampSONINC I
- Cover
- Table of Contents
- Safety
- Uncrating amp Inspection13
- Explanation of Electrical Controls
- Operation of Machine
- General Information
- Maintenance amp Adjustment
- Parts Breakdowns
- Trouble-Shooting Charts
- O-ring Charts
-
30
c W -I o o o a w ~ 3
III
~ W -I III J o C
w gta w en u o en
SOFT-SERVE - DOUBLE CAB - WATER COOLED REF PART No DESCRIPTION 1 155026 Water Condenser (B-side) 1 A 155039 Water Condenser (A-side) 2 159203 Sight Glass 3 155051 Drier (38) 4 155400 Automatic Expansion Valve (Cylinder) 5 Gear Reducer (see gear reducer breakdown page 36) 6 155410 Water Valve 7 155423 High Pressure Cut-Out 8 155403 Low Pressure Cut-Out 9 154976 Compressor 230160
151351 Capacitor Relay Assembly (Single Phase) 150247 Start Capacitor 150249 Run Capacitor 150245 Relay
9A 154975 Compressor 208-230360~-11 NOT USED ON THIS MODEL 12 155442 Low Temp Control 13 Driven Pulley (order by freezer serial no) 14 Belt (order by freezer serial no) 15 Driver Pulley (order by freezer serial no) 16 155422 Solenoid Valve 17 151044 Motor 1 phase 230 volt 17A 151052 Motor 3 phase 208230 volt 18 Motor Capacitors single phase only (order by freezer serial no)
Note For All 50-Cycle Freezers Order By Freezer Serial Number
cgt
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH _InU5A
32
c W J o o o -a oCt
aI oCt o W I m ) o c w gta w Ch t--LL o Ch
SOFTmiddotSERVE bull DOUBLE CAB - AIR COOLED REF PART No 1 155120 2 159020 3 151080 4 155400 5 6 159203 7 155051 8 112901 9 151044 9A 151052 10 11 12 14 154976
14A 154975 15 155401 16 155403 17 155443 18 155442 19
21 155422
DESCRIPTION Condenser Fan Blade Fan Motor Automatic Expansion Valve (Cylinder) Reducer (see gear reducer breakdown page 36) Sight Glass Drier Receiver Assembly Motor 1-Phase 230 Volt Motor 3-Phase 208230 Volt Driven Pulley (order by freezer serial no) Belt (ordr by freezer serial no) Driver Pulley (order by freezer serial no) Compressor 230160 151351 Capacitor Relay Assembly (Single Phase)
150247 Start Capacitor 150249 Run Capacitor 150245 Relay
Compressor 208-230360 High Pressure Cut-Out Low Pressure Cut-Out Cabinet Thermostat Low Temp Thermostat NOT USED ON THIS MODEL Motor Capacitors single phase only (order by freezer serial no) Solenoid Valve
Note For All 50-Cycle Freezers Order By Freezer Serial Number
Vl Vl
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prinled In USA
CAB PARTS BREAKDOWN
REF PART No DESCRIPTION PART No DESCRIPTION 1 155109 Cabinet Coil 136297 Condensate Pan (Not Shown) 1A 155113 Motor Cabinet Fan 196092 Mix Tank 7-12 Gal 1B 155099 Fan Blade Cabinet Coil 113997 Front Lid Mix Container
7-12 Gal 136248-01 Rear Lid Mix Cont 7-12 Gal
10 155416 CAB Automatic Expansion 130092 Mix Tube Valve 196028 Mix Tank 10 Gal
137119 Probe 11 -1 4 shy1E 155114 Fan Grill amp Bracket 7-12 Gal Container 1F 155116 Knob 137119-01 Probe 10-34 shy2 113898 DPR Pump Less Motor 7-12 amp 10
(see pump breakdown Gal Container pg 38) 137119-02 Probe 10-14 shy
3 196061 Mix Hose (sold by the foot) 10 Gal Container 4 150416 Door Switch 137120 Base Probe Mtg 4A 114630 Actuator Door Switch 160500 O-Ring
(Not Shown) 114572 Hose Clamp (Not Shown) 5 150527 Retractable Cordset 34
MIg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prlmd UsA
MERCHANDISING ASSY
PART No 115108 115107
PART No
196107-01 196108-01 114610 114608 115132 199030
PART No 162105 162106 112978 158004 158021 158022 158078 158000 158056 158000A 158014 158014A 161000 158049
DESCRIPTION 2S Merchandiser-927-957-978CAB 24 Merchandiser-917CAB
DRIP TRAY
DESCRIPTION
24 Drip Tray-917CAB 26- Drip Tray-927-957-978CAB 24 Tray Insert-917CAD 26 Tray Insert-978CAB-927CAB 26 Tray Insert-957CAB Rubber Bumper (only)
DESCRIPTION Caster With Brake Caster Without Brake Leg-6 4 Cylinder Brush Mix Hose Brush 58 Dia w6 Ft Handle 14 Pump Brush Drain Tube Brush Petrol Gel (12 tube carton) Petrol Gel (6 tube carton) Pe1rol Gel (per tube) Stera Sheen (per case) Stera Sheen (per jar) Pocket Thermometer 1 Dial Z32 Overrun Scale
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SNAKE bull SLUSH
35
36
GEAR REDUCERS Order By Freezer Serial Number
Model 3 CB
153345 5-1 Ratio B side 153004 High Speed Cup ~ (2 ea required) 153005 High Speed Bearing (2 ea required) 153008 Slow Speed Cup (2 ea required) 153009 Slow Speed Bearing (2 ea required) 153052 Slow Speed Seal (2 ea required) 153054 High Speed Seal (2 ea required) 153313 Brass Gear 5-1 Ratio 153336 Slow Speed Shaft Only 5-1 Ratio 153316 Worm Gear On Shaft 5-1 Ratio 114873 Gasket Set
Model 4 CB
153342 10-1 Ratio A side 153343 10-1 Ratio B side
153014 High Speed Cup (2 ea required) 153015 High Speed Bearing (2 ea required) 153011 Slow Speed Cup (2 ea required) 153012 Slow Speed Bearing (2 ea required) 153051 Slow Speed Seal (2 ea required) 153053 High Speed Seal (2 ea required) 153349 Brass Gear 10-1 Ratio 153339 Slow Speed Shaft OnIy 10-1 Ratio 153347 Worm Gear on Shaft 10-1 Ratio 114874 Gasket Set
Winlwin Model
153341 Wintwin 10-1 Ratio A and B Side
153014 High Speed Cup (2 ea required) 153015 High Speed Bearing (2 ea required) 153011 Slow Speed Cup (2 ea required) 153012 Slow Speed Bearing (2 ea required) 153051 Slow Speed Seal (2 ea required) 153053 High Speed Seal (2 ea required) 153349 Brass Gear 153350 Slow Speed Shaft Only 153348 Worm Gear on Shaft 11 4874 Gasket Set
158055 Gear Reducer OU 51001
Drive Coupling (Order By Machine Serial Number)
Mfg by H C DUKE amp SON INC bull 2115 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
917 amp 927 Beater Shaft Assembly
957 Beater Shaft
Item Part No Description
1 196079 Bushing-Cylinder 2 114752 Beater-Assy Long (Shaft) 3 137334 Blade-Scraper Soft Serve 4- 160500 O-Ring (Shaft Seal) 5- 133098 Bushing (Washer-Shaft Seal) 6 160557 Seal-Beater Shaft
-Items 4-6 111875 Seal-Assy Shaft (Complete)
31
1 113438 2 196079 3 137334 4- 160500 5- 133098 6 160557
-Items 4-6 111875
Shaft-Assy Beater Bushing-Cylinder Blade-Scraper O-ring (Shaft Seal) Washer-Shaft Seal (Bushing) Seal-Beater Shaft (Cup)
Seal-Assy Shaft (Complete)
ao
DISPENSING HEAD
16
r
Q
--~
-----_
REF PART No DESCRIPTION Tl3o 6 119928- Door Assembly shy Complete (Items 7-14) 11637- 7 196688 Door shy Less Parts
a 134921 Spigot shy Less Extension 9 134922 Handle Extension shy Spigot
10 162624 Handle 11 159295 OmiddotRings shy Spigot (Lots of 5)12 159309 O-ring shy 4 - Door 13 196066 Air Relief Screw 14 160621 a-Ring shy Air Relief Screw (Lots of 5)15 136126 Rod - Spigot Switch shy 917 8 927 16 136798 HMdKnob
38
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illmols 61244
SUPERIOR QUAUlY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
Duke Soft Serve Freezer Models 917R and 927RN
5 -______
7
6
UPDATEDDispense Head Assembly
Item Part No
115130 1 116321 2 160583 3 115129 4 160562 5 136126 6 134921 SA 162624 68 134922 7 159295 8 160584 9 162625 9A 114341 10 196185 10A 137870 108 136713
116410
Includes items 1-4 6-8
Description
Head-Assy Dispense (Complete) Head-Assy wActualor O-ring (Head-4-inch) Bleeder-Assy (Air Relief Plug) O-ring (Bleeder-Assy) Rod-Spigot Switch Spigot-long Single Handle-Black Tapered Handle-Spigot (Stainless Steel) O-ring (Spigot) O-ring (Extension) Knob-Hand Stud-Assy Cylinder 1-15116 inch (not shown) Nouie-Slar Adapter (accessory) Adapter-Yogurt Nozzle (not shown) Extension-Spigot (accessory-cake not shown) Kit-Dispense Head Switch
( Use only original or authorized replacement parts with this freezer )
DISPENSING HEAD
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH uu
REF PART No 114765
1 196082 2 114313 3 137018 5 136618 6 162626 8 134499 9 162625
10 115129 11 136794 12 159309 13 159295 14 160562 15 136713 16 160584
DESCRIPTION Door Assy-Complete Door-Less Parts Spigot Assy-Side Spigot Only-Center Extension Only-Center Handle Stud-Handle Stop Hand Knob Air Re1ief-Assy Rod-Spigot Switch O-Ring-4-Door O-Ring-Spigot O-Ring-Air Relief Extension-Spigot a-Ring
39
40
PUMP MOTOR AND HOUSING ASSEMBLY SAFETY SWITCH ASSEMBLY
PRESSURE SWITCH ASSEMBLY ijreg~
I
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH IIIUaA
CAB DPR PUMP BREAKDOWN
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 196091 Pump Base 46 114009 Pump Cover 2 136088 Pump Support 47 113464 Base Bracket Assembly 3 150784 Strain Relief Bushing 48 135725 Stud 1-78 4 Power Cord 49 160131 516 Flatwasher 5 160075 10-24 x 38 Screw 50 160293 Speed Clip 6 135416 Cover Electric Box 51 135724 Button 7 160141 14 Lockwasher 52 160140 10 Lockwasher 8 160491 14-20 x 34 Socket Screw 53 135726 Stud 3 9 113497 Motor Cord 18-3 SJT 54 160109 10-24 Hex Nut 10 151127 Motor 40 RPM Soft Serve 55 135729 Switch Actuator 11 160023 14-20 x 1 Screw 56 135731 Stop - Max Pressure 12 153317 Half Moon Key 57 162315 Spring - Soft Serve 13 112925 Cam Drive Plate Assembly 58 160138 10 Flat Washer 14 160495 14-20 x 14 Set Screw 59 160304 10-24 Stop Nut 15 160369 Pin 60 150456 Pressure Switch 16 134614 Swing Clamp 61 135744 Insulator - Fiber 17 134521 Adjusting Clamp 62 160381 6-32 x 1 Socket Screw 18 160488 Thumb Screw 63 160393 6 Flatwasher 19 134604 Bearing Bushing 64 160146 6 Lockwasher 20 134602 Connecting Rod 65 160309 6-32 Hex Nut 21 134601 Piston 66 160006 6-32 x 14 Screw 22 159295 O-Ring 67 160001 8-32 x 38 Screw 23 134603 Wrist Pin 68 160470 8 Lockwasher 24 136089 Cylinder 69 150481 Circuit Breaker 25 199011 Washer Valve 70 135727 Switch Bracket 26 159282 O-Ring 71 136311 Spacer - Cover Switch 27 113839 Pump Valve Housing 72 160028 Truss Head Screw
Assembly (Metal) 14-20 x 34 SST 28 160582 O-Ring 73 160141 Lockwasher 14 29 199020 Sleeve Rubber 74 160104 Hex Nut 14-20 30 135793 Retainer Clip 75 136312 Button Guard 31 135791 Adapter Hose Outlet 76 160020 Hex Hd Cap Screw 32 160581 O-Ring 14-20 x 1 SST 33 135790 Piston 77 113869 Switch Bracket 34 162308 Spring Soft Serve 78 136110 Button Cover Switch 35 135792 Drain Port 79 162314 Spring 36 160611 O-Ring 80 150456 Switch Pump Safety 37 135896 Hose 24 81 135004 Switch Cover 38 160738 Hose Clamp 82 160296 Screw RH 39 136288 Keeper 6-32 x 1-14 40 160554 O-Ring 83 160146 Lockwasher 6 41 160368 Wing Nut Int Tooth 42 130054 Diaphragm Housing 84 160393 Flatwasher 6 43 199019 Diaphragm 85 160309 Hex Nut 6-32 44 196074 Air Tube-Curved 86 114572 Hose Clamp 45 163433 Air Meter - 20 87 160048 14-20 x 12 TRHM
(other sizes available) 88 160308 6-32 x 516 RDHM 89 114581 Circuit Breaker Bracket
Not Shown 90 163109 Stop Pivot 112791 DPR Pressure Gauge
41
Mfg by H C DUKE amp SON INC 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
42
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Unit does not operate 1 Fuse blown at main disconshy 1 Check fuse size check for low nect voltage if not within 10 of
nameplate rating install transformer or call power company
2 Beater motor out on overload 2 Press starter reset button and check for low voltage Check producllemperalure and overrun
3 Disconnected or broken wife 3 Check wiring and wire connecshyin electrical circuit lions repair or replace lead
wires as necessary
4 Faulty selector switch 4 Replace selector switch
5 Out on high pressure 5 Check for low waler supply or dirty air conden ser
6 Out on low pressure 6 Check limit control and freon charge
Compressor does not operate f Troubte in compressor con- I Refer to Trouble-Shootingshyor operates improperly densing circuit Compressor I Condensing
Circuit
2 Faulty capacitor assembly 2 Replace capaCitor assembly (Single phase only)
3 Faulty contactor 3 Replace contaclOr or pOints
Compressor operates but 1 Loose con neclion at motor 1 Tighten connection beater motor does not starter coil (electrical box)
2 Open starter coil 2 Replace coil
3 Faulty capacitor assembly 3 Replace capaCitor assembly (Single phase only)
Dispensed product too hard 1 Cylinder themostat erratic 1 Adjust thermo slat or replace or set too low
2 Faulty time delay relay 2 Replace time delay relay
3 Solenoid valve leaking 3 Replace solenoid valve
4 Low suction pressure 4 See chart on page 15 for adshyjustments
Leaking of mix from rear housshy 1 Damaged bealer shalt seal 1 Replace shaft seal or O-ring ing discharge tube to drip tray inside seal assy
Mig by H C DUKE amp SON INC bull 2116 Eighlh Avenue Easl Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Mix leaking at dispensing head 1 Faulty 4 O-Ring
2 Head not properly installed
1 Replace 4 O-Ring
2 Install head properly
Mix sours in cabinet 1 Cabinet thermostat setting too high
2 Cabinet thermostat detective
3 Cabinet solenoid valve deshyfective
4 Cabinet switch defective
5 Beater motor out on overshyload (cab side)
1 Adjust thermostat
2 Replace thermostat
3 Replace coil or solenoid
4 Replace cabinet switch
S Reset overload for beater motor See pg 42 unit does not operate
Cabinet too COld
Machine runs continually and Product continues to get colder
Compressor operates only when dispensing
Unit runs conMuously Product does nol reach 180 F temperature
6 Door sWitch defectIVe
1 Cabinet thermostat setting too low
2 Defective thermostat
3 Cabinet solenoid stuck open
4 Cabinet expansion valve set too low
1 Plunger switch out of adjustshyment
2 Su ction pressure too low
3 Defective plunger switch
4 Plunger switch rod engaged
5 Faulty time delay relay
6 Starter or relay contacts stuck
7 Faulty thermostat or bulb not deep enough in well
6 Replace door SWitch
1 Adjust thermostat
2 Replace thermostat
3 Replace solenoid
4 Adjust cabinet expansion valve (See pg 15)
1 Adjust plunger switch
2 Adjust expansion valve and check freon charge
3 Replace plunger switch
4 Close plunger completely
5 Replace time delay relay
I 6 Check contacts i
7 Check bulb location or replace thermostat
1 Cylinder themostat setting 1 Adjust thermostat or replace too high or thermostat deshyfective
1 Trouble in compressor I condensing system
2 ExpanSion valve setiing is too high
3 Low on refrigeranl
1 See Trouble-Shooling-CompressorI Condensing circuit
2 Adjust expansion valve
3 Check and repair leak and recharge
1
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE SLUSHbull
43
44
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Dispensed product too soft (Product temperature above 21 0 F)
1 Automatic expansion yalve incorrectly set or erratic in operation
-2 Leak in refrigeration system
resulting in little or no refrigeration
1 Adjust or replace expanSion valve
2 Pump down system or remove refrigerant charge repair leak evacuate and recharge
3 Excessive oil in system 3 Drain compressor to proper oil leyel pump down and flush system
4 Thermostat set too high taulty
or 4 Adiust thermostat or replace
Product dispenses slOWly out dispensing head
1 Reverse rotation 1 Change rotation to clockshywise from front of freezer
2 Dispensing speed adjustshyment boll too far down
2 Adjust bolt upward
3 Pum p problem 3 See pump Trouble-Shooting chart
4 Product too cold 4 See dispensed product too hard pg42
TROUBLE-SHOOTING CHART COMPRESSORICONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor will not start -hums intermittently (cycling on oyerload)
1 Improperly wired
2 Low line Yoltage
3 Open starting capacitor (single phase only)
4 High discharge pressure
1 Check wiring against diagram
2 Ask power company to increase YOltage to not less than 10 below nameplate rating or install transformer Check for inadequate wire size
3 Replace starting capacitor
4 CheCK water regulating valve setting Check water or air condenser and clean if necessary Make sure disshycharge shut-oft valve is open
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor starts but remains 1 Low line voltage 1 Ask power company to in start windings increase voltage to not less (Single phase only) than 10 below nameplate
rating or install transrormer
2 Improperly wired 2 Check wiring against drawing Check wire size
3 Running capacitor shorted 3 Check by disconnecting running capacitor
4 Starting capacitor weak 4 Check capacitor replace
5 High disCharge pressure 5 Check water regulating valve check water or air condenser and clean il necessary Check discharge shut-off valve
Starter burned out 1 Low line voltage 1 Ask power company to inshycrease voltage to not less than 10 below nameplate rating or install transformer
2 Excessive line voltage 2 Ask power company to reduce voltage to maximum of 10 over nameplate rating
Starting capacitors burn out 1 Voltage 100 low 1 Ask power company to (Single phase only) increase voltage to not less
than 10 below nameplate rating or install translonmer
2 Improper capacitor 2 Replace capacitor with properly rated capacitor as listed in manual
Running capacitors burn out 1 Excessive line voltage 1 Ask power company to reshy(Single phase only) duce line voltage to not more
than 10 above rating 01 motor
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
45
46
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Unit operates long or continuously
1 Shortage of gas
2 Dirty condenser
3 Moisture in system
4 Compressor failing
1 Repair leak and recharge
2 Clean condenser
3 Evacuate and recharge system
4 Check compressor lor proper pressures If inadequate replace compressor
Head pressure too high 1 Refrigerant overcharge
2 Air in system
3 Dirty condenser (air cooled)
4 Unit location too warm (air cooled)
5 Restricted water cooled condenser
6 Water turned off or defective
1 Purge system
2 Purge system evacuate and recharge
3 Clean condenser
4 Relocate unIt away from restriction Place nothing against back or on top of unit
5 Clean or replace condenser
6 Turn on water Or replace water regulating valve regulating valve
Head pressure too low 1 Shortage 01 refrigerant 1 Repair leak and recharge
2 Water regulating valve open 2 Adjust regulating valve too wide
Water 1I0wing through water 1 Water regulating valve 1 Replace water regulating valve waste line when unit is not in operation
defective
Noisy compressor 1 Tubing raUle 1 Bend tubes away from contact
NOTE Refer to warranty card prior to compressor replacement
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING DPR PUMP
TROUBLE PROBABLE CAUSE REMEDY
Pump will not run 1 Pump cover removed 1 Install pump cover
2 Pressure switch actuating 2 Free bulton-check spring and
bulton stuck open (in) pressure switch alignment
3 Pressure switch burned out 3 Replace pressure switch
4 Starting switch in motor bad 4 Install new starting switch
5 Motor burned out 5 Replace motor
6 Circuit breaker kicked out 6 Allow to re- set Replace it or faulty circuit breaker will not
automatically re-set
Motor runs-cam drive plate 1 Loose cam drive plate 1 Tighten set screw in cam will not turn drive plate Check woodruff key
2 Gear stripped 2 Replace gear
Pump will not shut off Mix 1 Pressure swilch actuating 1 Free button-check pressure shoots out pressure relief bulton stuck closed (out) switch alignment
2 Pressure switch stuck in 2 Replace pressure switch closed position
3 Pressure switch assy out 3 Using pressure gauge adjust of adjustment pressure
4 Dirty or plugged diaphragm 4 Disassemble and clean housing (Ref 42) housing
5 Defective O-Ring on 5 Replace O-Ring pressure relief piston
Pump will not prime 1 Insufficient supply of mix 1 Replenish mix supply
2 Piston O-ring defective-no 2 Replace piston O-Ring and suction lubricate
3 Washer valve not sealing 3 Replace washer valve DO NOT LUBRICATE
Pump primes No pressure in 1 Sleeve (Rei 29) not sealing 1 Replace sleeve DO NOT cylinder properly LUBRICATE
2 Loose hose connection on 2 Install or tighten hose clamp pump valve housing (Ref 27)
Mix shoots out Of air intake line 1 Washer valve (Ref 25) 1 Replace washer valve-DO not sealing properly NOT LUBRICATE
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOfT SERVE bull SHAKE bull SLUSH
47
48
TROUBLE-SHOOTING DPR PUMP
Too much air overrun too high-popping problems
Product dispenses slowly out of disPenSing head
1 Air meter too large (Ref 45)
2 Air leak befween mix conshytainer and mix inlet
3 Air line hose crackedshysucking air (Ref 44)
4 Pump pressure too lowshycylinder not full
1 Pump pressure too low
2 PrOduct too cold
3 Low overrun
Diaphragm housing leaking mix 1 Diaphragm housing loose
2 Diaphragm defective
Piston drive assy noisy 1 Bushing bearing worn
2 Defective gear in gear motor
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SIfAKE bull SLUSH
REMEDY
1 Replace washer valve-DO NOT LUBRICATE
2 Install clamp on hose
1 Replace O-Ring and LUBRIshyCATE
1 Clean or replace air meter
2 Replace tube
1 Install smaller air meier
2 Repair as needed
3 Replace air line hose
4 Using pressure gauge adjust pressure switch
1 Using pressure gauge adjust pump pressure
2 Check product temperatureshyshould be about 18 F
3 Check meter-if plugged-clean
1 Tighten wing nuls (Ref 41)
2 Replace diaphragm (Ref 43)
1 Replace bushing bearing (Ref 19)
2 Replace gear
TROUBLE
Mix inlet hose loses prime
Mix on top of piston
PROBABLE CAUSE
1 Washer valve (Ref 25) not sealing properly
2 Mix inlet hose loose
1 Piston O-Ring leaking (Ref 22)
No Air (Overrun) 11 Ai r meter plugged (Ref I 45)
2 Curved air tube pinched
--
DPR PUMP aI
PART NO 199019(i) PART NO 199020 reg DIAPHRAGM RUBBER SLEEVE
PART NO159295 PART NO 159282reg O-RING O-RING0
PART NO 160581reg O-RING
o PART NO PART NO
PART NO199011() 160611(8) 160582 WASHER VALVE O-RING O-RING
PISTON
cJ
DIAPHRAGM HOUSING
CYLINDER
VALVE HOUSIN6 ASSEMBLY
PUUPOUTLET
DRAIN PORT
I PHNO309-755-4553 O-RING CHART HCDUKEampSONINC I
1 I84Z08 SOFT SERVE DISPENSING HEADS I
o PART NO 1605620
PAR~159--1b
PART NO PART NO 1605841 59295()
I PHNO 309-755-4553 O-R ING CHART HCDUKEampSONINC I
- Cover
- Table of Contents
- Safety
- Uncrating amp Inspection13
- Explanation of Electrical Controls
- Operation of Machine
- General Information
- Maintenance amp Adjustment
- Parts Breakdowns
- Trouble-Shooting Charts
- O-ring Charts
-
SOFT-SERVE - DOUBLE CAB - WATER COOLED REF PART No DESCRIPTION 1 155026 Water Condenser (B-side) 1 A 155039 Water Condenser (A-side) 2 159203 Sight Glass 3 155051 Drier (38) 4 155400 Automatic Expansion Valve (Cylinder) 5 Gear Reducer (see gear reducer breakdown page 36) 6 155410 Water Valve 7 155423 High Pressure Cut-Out 8 155403 Low Pressure Cut-Out 9 154976 Compressor 230160
151351 Capacitor Relay Assembly (Single Phase) 150247 Start Capacitor 150249 Run Capacitor 150245 Relay
9A 154975 Compressor 208-230360~-11 NOT USED ON THIS MODEL 12 155442 Low Temp Control 13 Driven Pulley (order by freezer serial no) 14 Belt (order by freezer serial no) 15 Driver Pulley (order by freezer serial no) 16 155422 Solenoid Valve 17 151044 Motor 1 phase 230 volt 17A 151052 Motor 3 phase 208230 volt 18 Motor Capacitors single phase only (order by freezer serial no)
Note For All 50-Cycle Freezers Order By Freezer Serial Number
cgt
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH _InU5A
32
c W J o o o -a oCt
aI oCt o W I m ) o c w gta w Ch t--LL o Ch
SOFTmiddotSERVE bull DOUBLE CAB - AIR COOLED REF PART No 1 155120 2 159020 3 151080 4 155400 5 6 159203 7 155051 8 112901 9 151044 9A 151052 10 11 12 14 154976
14A 154975 15 155401 16 155403 17 155443 18 155442 19
21 155422
DESCRIPTION Condenser Fan Blade Fan Motor Automatic Expansion Valve (Cylinder) Reducer (see gear reducer breakdown page 36) Sight Glass Drier Receiver Assembly Motor 1-Phase 230 Volt Motor 3-Phase 208230 Volt Driven Pulley (order by freezer serial no) Belt (ordr by freezer serial no) Driver Pulley (order by freezer serial no) Compressor 230160 151351 Capacitor Relay Assembly (Single Phase)
150247 Start Capacitor 150249 Run Capacitor 150245 Relay
Compressor 208-230360 High Pressure Cut-Out Low Pressure Cut-Out Cabinet Thermostat Low Temp Thermostat NOT USED ON THIS MODEL Motor Capacitors single phase only (order by freezer serial no) Solenoid Valve
Note For All 50-Cycle Freezers Order By Freezer Serial Number
Vl Vl
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prinled In USA
CAB PARTS BREAKDOWN
REF PART No DESCRIPTION PART No DESCRIPTION 1 155109 Cabinet Coil 136297 Condensate Pan (Not Shown) 1A 155113 Motor Cabinet Fan 196092 Mix Tank 7-12 Gal 1B 155099 Fan Blade Cabinet Coil 113997 Front Lid Mix Container
7-12 Gal 136248-01 Rear Lid Mix Cont 7-12 Gal
10 155416 CAB Automatic Expansion 130092 Mix Tube Valve 196028 Mix Tank 10 Gal
137119 Probe 11 -1 4 shy1E 155114 Fan Grill amp Bracket 7-12 Gal Container 1F 155116 Knob 137119-01 Probe 10-34 shy2 113898 DPR Pump Less Motor 7-12 amp 10
(see pump breakdown Gal Container pg 38) 137119-02 Probe 10-14 shy
3 196061 Mix Hose (sold by the foot) 10 Gal Container 4 150416 Door Switch 137120 Base Probe Mtg 4A 114630 Actuator Door Switch 160500 O-Ring
(Not Shown) 114572 Hose Clamp (Not Shown) 5 150527 Retractable Cordset 34
MIg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prlmd UsA
MERCHANDISING ASSY
PART No 115108 115107
PART No
196107-01 196108-01 114610 114608 115132 199030
PART No 162105 162106 112978 158004 158021 158022 158078 158000 158056 158000A 158014 158014A 161000 158049
DESCRIPTION 2S Merchandiser-927-957-978CAB 24 Merchandiser-917CAB
DRIP TRAY
DESCRIPTION
24 Drip Tray-917CAB 26- Drip Tray-927-957-978CAB 24 Tray Insert-917CAD 26 Tray Insert-978CAB-927CAB 26 Tray Insert-957CAB Rubber Bumper (only)
DESCRIPTION Caster With Brake Caster Without Brake Leg-6 4 Cylinder Brush Mix Hose Brush 58 Dia w6 Ft Handle 14 Pump Brush Drain Tube Brush Petrol Gel (12 tube carton) Petrol Gel (6 tube carton) Pe1rol Gel (per tube) Stera Sheen (per case) Stera Sheen (per jar) Pocket Thermometer 1 Dial Z32 Overrun Scale
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SNAKE bull SLUSH
35
36
GEAR REDUCERS Order By Freezer Serial Number
Model 3 CB
153345 5-1 Ratio B side 153004 High Speed Cup ~ (2 ea required) 153005 High Speed Bearing (2 ea required) 153008 Slow Speed Cup (2 ea required) 153009 Slow Speed Bearing (2 ea required) 153052 Slow Speed Seal (2 ea required) 153054 High Speed Seal (2 ea required) 153313 Brass Gear 5-1 Ratio 153336 Slow Speed Shaft Only 5-1 Ratio 153316 Worm Gear On Shaft 5-1 Ratio 114873 Gasket Set
Model 4 CB
153342 10-1 Ratio A side 153343 10-1 Ratio B side
153014 High Speed Cup (2 ea required) 153015 High Speed Bearing (2 ea required) 153011 Slow Speed Cup (2 ea required) 153012 Slow Speed Bearing (2 ea required) 153051 Slow Speed Seal (2 ea required) 153053 High Speed Seal (2 ea required) 153349 Brass Gear 10-1 Ratio 153339 Slow Speed Shaft OnIy 10-1 Ratio 153347 Worm Gear on Shaft 10-1 Ratio 114874 Gasket Set
Winlwin Model
153341 Wintwin 10-1 Ratio A and B Side
153014 High Speed Cup (2 ea required) 153015 High Speed Bearing (2 ea required) 153011 Slow Speed Cup (2 ea required) 153012 Slow Speed Bearing (2 ea required) 153051 Slow Speed Seal (2 ea required) 153053 High Speed Seal (2 ea required) 153349 Brass Gear 153350 Slow Speed Shaft Only 153348 Worm Gear on Shaft 11 4874 Gasket Set
158055 Gear Reducer OU 51001
Drive Coupling (Order By Machine Serial Number)
Mfg by H C DUKE amp SON INC bull 2115 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
917 amp 927 Beater Shaft Assembly
957 Beater Shaft
Item Part No Description
1 196079 Bushing-Cylinder 2 114752 Beater-Assy Long (Shaft) 3 137334 Blade-Scraper Soft Serve 4- 160500 O-Ring (Shaft Seal) 5- 133098 Bushing (Washer-Shaft Seal) 6 160557 Seal-Beater Shaft
-Items 4-6 111875 Seal-Assy Shaft (Complete)
31
1 113438 2 196079 3 137334 4- 160500 5- 133098 6 160557
-Items 4-6 111875
Shaft-Assy Beater Bushing-Cylinder Blade-Scraper O-ring (Shaft Seal) Washer-Shaft Seal (Bushing) Seal-Beater Shaft (Cup)
Seal-Assy Shaft (Complete)
ao
DISPENSING HEAD
16
r
Q
--~
-----_
REF PART No DESCRIPTION Tl3o 6 119928- Door Assembly shy Complete (Items 7-14) 11637- 7 196688 Door shy Less Parts
a 134921 Spigot shy Less Extension 9 134922 Handle Extension shy Spigot
10 162624 Handle 11 159295 OmiddotRings shy Spigot (Lots of 5)12 159309 O-ring shy 4 - Door 13 196066 Air Relief Screw 14 160621 a-Ring shy Air Relief Screw (Lots of 5)15 136126 Rod - Spigot Switch shy 917 8 927 16 136798 HMdKnob
38
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illmols 61244
SUPERIOR QUAUlY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
Duke Soft Serve Freezer Models 917R and 927RN
5 -______
7
6
UPDATEDDispense Head Assembly
Item Part No
115130 1 116321 2 160583 3 115129 4 160562 5 136126 6 134921 SA 162624 68 134922 7 159295 8 160584 9 162625 9A 114341 10 196185 10A 137870 108 136713
116410
Includes items 1-4 6-8
Description
Head-Assy Dispense (Complete) Head-Assy wActualor O-ring (Head-4-inch) Bleeder-Assy (Air Relief Plug) O-ring (Bleeder-Assy) Rod-Spigot Switch Spigot-long Single Handle-Black Tapered Handle-Spigot (Stainless Steel) O-ring (Spigot) O-ring (Extension) Knob-Hand Stud-Assy Cylinder 1-15116 inch (not shown) Nouie-Slar Adapter (accessory) Adapter-Yogurt Nozzle (not shown) Extension-Spigot (accessory-cake not shown) Kit-Dispense Head Switch
( Use only original or authorized replacement parts with this freezer )
DISPENSING HEAD
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH uu
REF PART No 114765
1 196082 2 114313 3 137018 5 136618 6 162626 8 134499 9 162625
10 115129 11 136794 12 159309 13 159295 14 160562 15 136713 16 160584
DESCRIPTION Door Assy-Complete Door-Less Parts Spigot Assy-Side Spigot Only-Center Extension Only-Center Handle Stud-Handle Stop Hand Knob Air Re1ief-Assy Rod-Spigot Switch O-Ring-4-Door O-Ring-Spigot O-Ring-Air Relief Extension-Spigot a-Ring
39
40
PUMP MOTOR AND HOUSING ASSEMBLY SAFETY SWITCH ASSEMBLY
PRESSURE SWITCH ASSEMBLY ijreg~
I
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH IIIUaA
CAB DPR PUMP BREAKDOWN
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 196091 Pump Base 46 114009 Pump Cover 2 136088 Pump Support 47 113464 Base Bracket Assembly 3 150784 Strain Relief Bushing 48 135725 Stud 1-78 4 Power Cord 49 160131 516 Flatwasher 5 160075 10-24 x 38 Screw 50 160293 Speed Clip 6 135416 Cover Electric Box 51 135724 Button 7 160141 14 Lockwasher 52 160140 10 Lockwasher 8 160491 14-20 x 34 Socket Screw 53 135726 Stud 3 9 113497 Motor Cord 18-3 SJT 54 160109 10-24 Hex Nut 10 151127 Motor 40 RPM Soft Serve 55 135729 Switch Actuator 11 160023 14-20 x 1 Screw 56 135731 Stop - Max Pressure 12 153317 Half Moon Key 57 162315 Spring - Soft Serve 13 112925 Cam Drive Plate Assembly 58 160138 10 Flat Washer 14 160495 14-20 x 14 Set Screw 59 160304 10-24 Stop Nut 15 160369 Pin 60 150456 Pressure Switch 16 134614 Swing Clamp 61 135744 Insulator - Fiber 17 134521 Adjusting Clamp 62 160381 6-32 x 1 Socket Screw 18 160488 Thumb Screw 63 160393 6 Flatwasher 19 134604 Bearing Bushing 64 160146 6 Lockwasher 20 134602 Connecting Rod 65 160309 6-32 Hex Nut 21 134601 Piston 66 160006 6-32 x 14 Screw 22 159295 O-Ring 67 160001 8-32 x 38 Screw 23 134603 Wrist Pin 68 160470 8 Lockwasher 24 136089 Cylinder 69 150481 Circuit Breaker 25 199011 Washer Valve 70 135727 Switch Bracket 26 159282 O-Ring 71 136311 Spacer - Cover Switch 27 113839 Pump Valve Housing 72 160028 Truss Head Screw
Assembly (Metal) 14-20 x 34 SST 28 160582 O-Ring 73 160141 Lockwasher 14 29 199020 Sleeve Rubber 74 160104 Hex Nut 14-20 30 135793 Retainer Clip 75 136312 Button Guard 31 135791 Adapter Hose Outlet 76 160020 Hex Hd Cap Screw 32 160581 O-Ring 14-20 x 1 SST 33 135790 Piston 77 113869 Switch Bracket 34 162308 Spring Soft Serve 78 136110 Button Cover Switch 35 135792 Drain Port 79 162314 Spring 36 160611 O-Ring 80 150456 Switch Pump Safety 37 135896 Hose 24 81 135004 Switch Cover 38 160738 Hose Clamp 82 160296 Screw RH 39 136288 Keeper 6-32 x 1-14 40 160554 O-Ring 83 160146 Lockwasher 6 41 160368 Wing Nut Int Tooth 42 130054 Diaphragm Housing 84 160393 Flatwasher 6 43 199019 Diaphragm 85 160309 Hex Nut 6-32 44 196074 Air Tube-Curved 86 114572 Hose Clamp 45 163433 Air Meter - 20 87 160048 14-20 x 12 TRHM
(other sizes available) 88 160308 6-32 x 516 RDHM 89 114581 Circuit Breaker Bracket
Not Shown 90 163109 Stop Pivot 112791 DPR Pressure Gauge
41
Mfg by H C DUKE amp SON INC 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
42
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Unit does not operate 1 Fuse blown at main disconshy 1 Check fuse size check for low nect voltage if not within 10 of
nameplate rating install transformer or call power company
2 Beater motor out on overload 2 Press starter reset button and check for low voltage Check producllemperalure and overrun
3 Disconnected or broken wife 3 Check wiring and wire connecshyin electrical circuit lions repair or replace lead
wires as necessary
4 Faulty selector switch 4 Replace selector switch
5 Out on high pressure 5 Check for low waler supply or dirty air conden ser
6 Out on low pressure 6 Check limit control and freon charge
Compressor does not operate f Troubte in compressor con- I Refer to Trouble-Shootingshyor operates improperly densing circuit Compressor I Condensing
Circuit
2 Faulty capacitor assembly 2 Replace capaCitor assembly (Single phase only)
3 Faulty contactor 3 Replace contaclOr or pOints
Compressor operates but 1 Loose con neclion at motor 1 Tighten connection beater motor does not starter coil (electrical box)
2 Open starter coil 2 Replace coil
3 Faulty capacitor assembly 3 Replace capaCitor assembly (Single phase only)
Dispensed product too hard 1 Cylinder themostat erratic 1 Adjust thermo slat or replace or set too low
2 Faulty time delay relay 2 Replace time delay relay
3 Solenoid valve leaking 3 Replace solenoid valve
4 Low suction pressure 4 See chart on page 15 for adshyjustments
Leaking of mix from rear housshy 1 Damaged bealer shalt seal 1 Replace shaft seal or O-ring ing discharge tube to drip tray inside seal assy
Mig by H C DUKE amp SON INC bull 2116 Eighlh Avenue Easl Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Mix leaking at dispensing head 1 Faulty 4 O-Ring
2 Head not properly installed
1 Replace 4 O-Ring
2 Install head properly
Mix sours in cabinet 1 Cabinet thermostat setting too high
2 Cabinet thermostat detective
3 Cabinet solenoid valve deshyfective
4 Cabinet switch defective
5 Beater motor out on overshyload (cab side)
1 Adjust thermostat
2 Replace thermostat
3 Replace coil or solenoid
4 Replace cabinet switch
S Reset overload for beater motor See pg 42 unit does not operate
Cabinet too COld
Machine runs continually and Product continues to get colder
Compressor operates only when dispensing
Unit runs conMuously Product does nol reach 180 F temperature
6 Door sWitch defectIVe
1 Cabinet thermostat setting too low
2 Defective thermostat
3 Cabinet solenoid stuck open
4 Cabinet expansion valve set too low
1 Plunger switch out of adjustshyment
2 Su ction pressure too low
3 Defective plunger switch
4 Plunger switch rod engaged
5 Faulty time delay relay
6 Starter or relay contacts stuck
7 Faulty thermostat or bulb not deep enough in well
6 Replace door SWitch
1 Adjust thermostat
2 Replace thermostat
3 Replace solenoid
4 Adjust cabinet expansion valve (See pg 15)
1 Adjust plunger switch
2 Adjust expansion valve and check freon charge
3 Replace plunger switch
4 Close plunger completely
5 Replace time delay relay
I 6 Check contacts i
7 Check bulb location or replace thermostat
1 Cylinder themostat setting 1 Adjust thermostat or replace too high or thermostat deshyfective
1 Trouble in compressor I condensing system
2 ExpanSion valve setiing is too high
3 Low on refrigeranl
1 See Trouble-Shooling-CompressorI Condensing circuit
2 Adjust expansion valve
3 Check and repair leak and recharge
1
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE SLUSHbull
43
44
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Dispensed product too soft (Product temperature above 21 0 F)
1 Automatic expansion yalve incorrectly set or erratic in operation
-2 Leak in refrigeration system
resulting in little or no refrigeration
1 Adjust or replace expanSion valve
2 Pump down system or remove refrigerant charge repair leak evacuate and recharge
3 Excessive oil in system 3 Drain compressor to proper oil leyel pump down and flush system
4 Thermostat set too high taulty
or 4 Adiust thermostat or replace
Product dispenses slOWly out dispensing head
1 Reverse rotation 1 Change rotation to clockshywise from front of freezer
2 Dispensing speed adjustshyment boll too far down
2 Adjust bolt upward
3 Pum p problem 3 See pump Trouble-Shooting chart
4 Product too cold 4 See dispensed product too hard pg42
TROUBLE-SHOOTING CHART COMPRESSORICONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor will not start -hums intermittently (cycling on oyerload)
1 Improperly wired
2 Low line Yoltage
3 Open starting capacitor (single phase only)
4 High discharge pressure
1 Check wiring against diagram
2 Ask power company to increase YOltage to not less than 10 below nameplate rating or install transformer Check for inadequate wire size
3 Replace starting capacitor
4 CheCK water regulating valve setting Check water or air condenser and clean if necessary Make sure disshycharge shut-oft valve is open
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor starts but remains 1 Low line voltage 1 Ask power company to in start windings increase voltage to not less (Single phase only) than 10 below nameplate
rating or install transrormer
2 Improperly wired 2 Check wiring against drawing Check wire size
3 Running capacitor shorted 3 Check by disconnecting running capacitor
4 Starting capacitor weak 4 Check capacitor replace
5 High disCharge pressure 5 Check water regulating valve check water or air condenser and clean il necessary Check discharge shut-off valve
Starter burned out 1 Low line voltage 1 Ask power company to inshycrease voltage to not less than 10 below nameplate rating or install transformer
2 Excessive line voltage 2 Ask power company to reduce voltage to maximum of 10 over nameplate rating
Starting capacitors burn out 1 Voltage 100 low 1 Ask power company to (Single phase only) increase voltage to not less
than 10 below nameplate rating or install translonmer
2 Improper capacitor 2 Replace capacitor with properly rated capacitor as listed in manual
Running capacitors burn out 1 Excessive line voltage 1 Ask power company to reshy(Single phase only) duce line voltage to not more
than 10 above rating 01 motor
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
45
46
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Unit operates long or continuously
1 Shortage of gas
2 Dirty condenser
3 Moisture in system
4 Compressor failing
1 Repair leak and recharge
2 Clean condenser
3 Evacuate and recharge system
4 Check compressor lor proper pressures If inadequate replace compressor
Head pressure too high 1 Refrigerant overcharge
2 Air in system
3 Dirty condenser (air cooled)
4 Unit location too warm (air cooled)
5 Restricted water cooled condenser
6 Water turned off or defective
1 Purge system
2 Purge system evacuate and recharge
3 Clean condenser
4 Relocate unIt away from restriction Place nothing against back or on top of unit
5 Clean or replace condenser
6 Turn on water Or replace water regulating valve regulating valve
Head pressure too low 1 Shortage 01 refrigerant 1 Repair leak and recharge
2 Water regulating valve open 2 Adjust regulating valve too wide
Water 1I0wing through water 1 Water regulating valve 1 Replace water regulating valve waste line when unit is not in operation
defective
Noisy compressor 1 Tubing raUle 1 Bend tubes away from contact
NOTE Refer to warranty card prior to compressor replacement
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING DPR PUMP
TROUBLE PROBABLE CAUSE REMEDY
Pump will not run 1 Pump cover removed 1 Install pump cover
2 Pressure switch actuating 2 Free bulton-check spring and
bulton stuck open (in) pressure switch alignment
3 Pressure switch burned out 3 Replace pressure switch
4 Starting switch in motor bad 4 Install new starting switch
5 Motor burned out 5 Replace motor
6 Circuit breaker kicked out 6 Allow to re- set Replace it or faulty circuit breaker will not
automatically re-set
Motor runs-cam drive plate 1 Loose cam drive plate 1 Tighten set screw in cam will not turn drive plate Check woodruff key
2 Gear stripped 2 Replace gear
Pump will not shut off Mix 1 Pressure swilch actuating 1 Free button-check pressure shoots out pressure relief bulton stuck closed (out) switch alignment
2 Pressure switch stuck in 2 Replace pressure switch closed position
3 Pressure switch assy out 3 Using pressure gauge adjust of adjustment pressure
4 Dirty or plugged diaphragm 4 Disassemble and clean housing (Ref 42) housing
5 Defective O-Ring on 5 Replace O-Ring pressure relief piston
Pump will not prime 1 Insufficient supply of mix 1 Replenish mix supply
2 Piston O-ring defective-no 2 Replace piston O-Ring and suction lubricate
3 Washer valve not sealing 3 Replace washer valve DO NOT LUBRICATE
Pump primes No pressure in 1 Sleeve (Rei 29) not sealing 1 Replace sleeve DO NOT cylinder properly LUBRICATE
2 Loose hose connection on 2 Install or tighten hose clamp pump valve housing (Ref 27)
Mix shoots out Of air intake line 1 Washer valve (Ref 25) 1 Replace washer valve-DO not sealing properly NOT LUBRICATE
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOfT SERVE bull SHAKE bull SLUSH
47
48
TROUBLE-SHOOTING DPR PUMP
Too much air overrun too high-popping problems
Product dispenses slowly out of disPenSing head
1 Air meter too large (Ref 45)
2 Air leak befween mix conshytainer and mix inlet
3 Air line hose crackedshysucking air (Ref 44)
4 Pump pressure too lowshycylinder not full
1 Pump pressure too low
2 PrOduct too cold
3 Low overrun
Diaphragm housing leaking mix 1 Diaphragm housing loose
2 Diaphragm defective
Piston drive assy noisy 1 Bushing bearing worn
2 Defective gear in gear motor
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SIfAKE bull SLUSH
REMEDY
1 Replace washer valve-DO NOT LUBRICATE
2 Install clamp on hose
1 Replace O-Ring and LUBRIshyCATE
1 Clean or replace air meter
2 Replace tube
1 Install smaller air meier
2 Repair as needed
3 Replace air line hose
4 Using pressure gauge adjust pressure switch
1 Using pressure gauge adjust pump pressure
2 Check product temperatureshyshould be about 18 F
3 Check meter-if plugged-clean
1 Tighten wing nuls (Ref 41)
2 Replace diaphragm (Ref 43)
1 Replace bushing bearing (Ref 19)
2 Replace gear
TROUBLE
Mix inlet hose loses prime
Mix on top of piston
PROBABLE CAUSE
1 Washer valve (Ref 25) not sealing properly
2 Mix inlet hose loose
1 Piston O-Ring leaking (Ref 22)
No Air (Overrun) 11 Ai r meter plugged (Ref I 45)
2 Curved air tube pinched
--
DPR PUMP aI
PART NO 199019(i) PART NO 199020 reg DIAPHRAGM RUBBER SLEEVE
PART NO159295 PART NO 159282reg O-RING O-RING0
PART NO 160581reg O-RING
o PART NO PART NO
PART NO199011() 160611(8) 160582 WASHER VALVE O-RING O-RING
PISTON
cJ
DIAPHRAGM HOUSING
CYLINDER
VALVE HOUSIN6 ASSEMBLY
PUUPOUTLET
DRAIN PORT
I PHNO309-755-4553 O-RING CHART HCDUKEampSONINC I
1 I84Z08 SOFT SERVE DISPENSING HEADS I
o PART NO 1605620
PAR~159--1b
PART NO PART NO 1605841 59295()
I PHNO 309-755-4553 O-R ING CHART HCDUKEampSONINC I
- Cover
- Table of Contents
- Safety
- Uncrating amp Inspection13
- Explanation of Electrical Controls
- Operation of Machine
- General Information
- Maintenance amp Adjustment
- Parts Breakdowns
- Trouble-Shooting Charts
- O-ring Charts
-
32
c W J o o o -a oCt
aI oCt o W I m ) o c w gta w Ch t--LL o Ch
SOFTmiddotSERVE bull DOUBLE CAB - AIR COOLED REF PART No 1 155120 2 159020 3 151080 4 155400 5 6 159203 7 155051 8 112901 9 151044 9A 151052 10 11 12 14 154976
14A 154975 15 155401 16 155403 17 155443 18 155442 19
21 155422
DESCRIPTION Condenser Fan Blade Fan Motor Automatic Expansion Valve (Cylinder) Reducer (see gear reducer breakdown page 36) Sight Glass Drier Receiver Assembly Motor 1-Phase 230 Volt Motor 3-Phase 208230 Volt Driven Pulley (order by freezer serial no) Belt (ordr by freezer serial no) Driver Pulley (order by freezer serial no) Compressor 230160 151351 Capacitor Relay Assembly (Single Phase)
150247 Start Capacitor 150249 Run Capacitor 150245 Relay
Compressor 208-230360 High Pressure Cut-Out Low Pressure Cut-Out Cabinet Thermostat Low Temp Thermostat NOT USED ON THIS MODEL Motor Capacitors single phase only (order by freezer serial no) Solenoid Valve
Note For All 50-Cycle Freezers Order By Freezer Serial Number
Vl Vl
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prinled In USA
CAB PARTS BREAKDOWN
REF PART No DESCRIPTION PART No DESCRIPTION 1 155109 Cabinet Coil 136297 Condensate Pan (Not Shown) 1A 155113 Motor Cabinet Fan 196092 Mix Tank 7-12 Gal 1B 155099 Fan Blade Cabinet Coil 113997 Front Lid Mix Container
7-12 Gal 136248-01 Rear Lid Mix Cont 7-12 Gal
10 155416 CAB Automatic Expansion 130092 Mix Tube Valve 196028 Mix Tank 10 Gal
137119 Probe 11 -1 4 shy1E 155114 Fan Grill amp Bracket 7-12 Gal Container 1F 155116 Knob 137119-01 Probe 10-34 shy2 113898 DPR Pump Less Motor 7-12 amp 10
(see pump breakdown Gal Container pg 38) 137119-02 Probe 10-14 shy
3 196061 Mix Hose (sold by the foot) 10 Gal Container 4 150416 Door Switch 137120 Base Probe Mtg 4A 114630 Actuator Door Switch 160500 O-Ring
(Not Shown) 114572 Hose Clamp (Not Shown) 5 150527 Retractable Cordset 34
MIg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prlmd UsA
MERCHANDISING ASSY
PART No 115108 115107
PART No
196107-01 196108-01 114610 114608 115132 199030
PART No 162105 162106 112978 158004 158021 158022 158078 158000 158056 158000A 158014 158014A 161000 158049
DESCRIPTION 2S Merchandiser-927-957-978CAB 24 Merchandiser-917CAB
DRIP TRAY
DESCRIPTION
24 Drip Tray-917CAB 26- Drip Tray-927-957-978CAB 24 Tray Insert-917CAD 26 Tray Insert-978CAB-927CAB 26 Tray Insert-957CAB Rubber Bumper (only)
DESCRIPTION Caster With Brake Caster Without Brake Leg-6 4 Cylinder Brush Mix Hose Brush 58 Dia w6 Ft Handle 14 Pump Brush Drain Tube Brush Petrol Gel (12 tube carton) Petrol Gel (6 tube carton) Pe1rol Gel (per tube) Stera Sheen (per case) Stera Sheen (per jar) Pocket Thermometer 1 Dial Z32 Overrun Scale
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SNAKE bull SLUSH
35
36
GEAR REDUCERS Order By Freezer Serial Number
Model 3 CB
153345 5-1 Ratio B side 153004 High Speed Cup ~ (2 ea required) 153005 High Speed Bearing (2 ea required) 153008 Slow Speed Cup (2 ea required) 153009 Slow Speed Bearing (2 ea required) 153052 Slow Speed Seal (2 ea required) 153054 High Speed Seal (2 ea required) 153313 Brass Gear 5-1 Ratio 153336 Slow Speed Shaft Only 5-1 Ratio 153316 Worm Gear On Shaft 5-1 Ratio 114873 Gasket Set
Model 4 CB
153342 10-1 Ratio A side 153343 10-1 Ratio B side
153014 High Speed Cup (2 ea required) 153015 High Speed Bearing (2 ea required) 153011 Slow Speed Cup (2 ea required) 153012 Slow Speed Bearing (2 ea required) 153051 Slow Speed Seal (2 ea required) 153053 High Speed Seal (2 ea required) 153349 Brass Gear 10-1 Ratio 153339 Slow Speed Shaft OnIy 10-1 Ratio 153347 Worm Gear on Shaft 10-1 Ratio 114874 Gasket Set
Winlwin Model
153341 Wintwin 10-1 Ratio A and B Side
153014 High Speed Cup (2 ea required) 153015 High Speed Bearing (2 ea required) 153011 Slow Speed Cup (2 ea required) 153012 Slow Speed Bearing (2 ea required) 153051 Slow Speed Seal (2 ea required) 153053 High Speed Seal (2 ea required) 153349 Brass Gear 153350 Slow Speed Shaft Only 153348 Worm Gear on Shaft 11 4874 Gasket Set
158055 Gear Reducer OU 51001
Drive Coupling (Order By Machine Serial Number)
Mfg by H C DUKE amp SON INC bull 2115 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
917 amp 927 Beater Shaft Assembly
957 Beater Shaft
Item Part No Description
1 196079 Bushing-Cylinder 2 114752 Beater-Assy Long (Shaft) 3 137334 Blade-Scraper Soft Serve 4- 160500 O-Ring (Shaft Seal) 5- 133098 Bushing (Washer-Shaft Seal) 6 160557 Seal-Beater Shaft
-Items 4-6 111875 Seal-Assy Shaft (Complete)
31
1 113438 2 196079 3 137334 4- 160500 5- 133098 6 160557
-Items 4-6 111875
Shaft-Assy Beater Bushing-Cylinder Blade-Scraper O-ring (Shaft Seal) Washer-Shaft Seal (Bushing) Seal-Beater Shaft (Cup)
Seal-Assy Shaft (Complete)
ao
DISPENSING HEAD
16
r
Q
--~
-----_
REF PART No DESCRIPTION Tl3o 6 119928- Door Assembly shy Complete (Items 7-14) 11637- 7 196688 Door shy Less Parts
a 134921 Spigot shy Less Extension 9 134922 Handle Extension shy Spigot
10 162624 Handle 11 159295 OmiddotRings shy Spigot (Lots of 5)12 159309 O-ring shy 4 - Door 13 196066 Air Relief Screw 14 160621 a-Ring shy Air Relief Screw (Lots of 5)15 136126 Rod - Spigot Switch shy 917 8 927 16 136798 HMdKnob
38
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illmols 61244
SUPERIOR QUAUlY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
Duke Soft Serve Freezer Models 917R and 927RN
5 -______
7
6
UPDATEDDispense Head Assembly
Item Part No
115130 1 116321 2 160583 3 115129 4 160562 5 136126 6 134921 SA 162624 68 134922 7 159295 8 160584 9 162625 9A 114341 10 196185 10A 137870 108 136713
116410
Includes items 1-4 6-8
Description
Head-Assy Dispense (Complete) Head-Assy wActualor O-ring (Head-4-inch) Bleeder-Assy (Air Relief Plug) O-ring (Bleeder-Assy) Rod-Spigot Switch Spigot-long Single Handle-Black Tapered Handle-Spigot (Stainless Steel) O-ring (Spigot) O-ring (Extension) Knob-Hand Stud-Assy Cylinder 1-15116 inch (not shown) Nouie-Slar Adapter (accessory) Adapter-Yogurt Nozzle (not shown) Extension-Spigot (accessory-cake not shown) Kit-Dispense Head Switch
( Use only original or authorized replacement parts with this freezer )
DISPENSING HEAD
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH uu
REF PART No 114765
1 196082 2 114313 3 137018 5 136618 6 162626 8 134499 9 162625
10 115129 11 136794 12 159309 13 159295 14 160562 15 136713 16 160584
DESCRIPTION Door Assy-Complete Door-Less Parts Spigot Assy-Side Spigot Only-Center Extension Only-Center Handle Stud-Handle Stop Hand Knob Air Re1ief-Assy Rod-Spigot Switch O-Ring-4-Door O-Ring-Spigot O-Ring-Air Relief Extension-Spigot a-Ring
39
40
PUMP MOTOR AND HOUSING ASSEMBLY SAFETY SWITCH ASSEMBLY
PRESSURE SWITCH ASSEMBLY ijreg~
I
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH IIIUaA
CAB DPR PUMP BREAKDOWN
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 196091 Pump Base 46 114009 Pump Cover 2 136088 Pump Support 47 113464 Base Bracket Assembly 3 150784 Strain Relief Bushing 48 135725 Stud 1-78 4 Power Cord 49 160131 516 Flatwasher 5 160075 10-24 x 38 Screw 50 160293 Speed Clip 6 135416 Cover Electric Box 51 135724 Button 7 160141 14 Lockwasher 52 160140 10 Lockwasher 8 160491 14-20 x 34 Socket Screw 53 135726 Stud 3 9 113497 Motor Cord 18-3 SJT 54 160109 10-24 Hex Nut 10 151127 Motor 40 RPM Soft Serve 55 135729 Switch Actuator 11 160023 14-20 x 1 Screw 56 135731 Stop - Max Pressure 12 153317 Half Moon Key 57 162315 Spring - Soft Serve 13 112925 Cam Drive Plate Assembly 58 160138 10 Flat Washer 14 160495 14-20 x 14 Set Screw 59 160304 10-24 Stop Nut 15 160369 Pin 60 150456 Pressure Switch 16 134614 Swing Clamp 61 135744 Insulator - Fiber 17 134521 Adjusting Clamp 62 160381 6-32 x 1 Socket Screw 18 160488 Thumb Screw 63 160393 6 Flatwasher 19 134604 Bearing Bushing 64 160146 6 Lockwasher 20 134602 Connecting Rod 65 160309 6-32 Hex Nut 21 134601 Piston 66 160006 6-32 x 14 Screw 22 159295 O-Ring 67 160001 8-32 x 38 Screw 23 134603 Wrist Pin 68 160470 8 Lockwasher 24 136089 Cylinder 69 150481 Circuit Breaker 25 199011 Washer Valve 70 135727 Switch Bracket 26 159282 O-Ring 71 136311 Spacer - Cover Switch 27 113839 Pump Valve Housing 72 160028 Truss Head Screw
Assembly (Metal) 14-20 x 34 SST 28 160582 O-Ring 73 160141 Lockwasher 14 29 199020 Sleeve Rubber 74 160104 Hex Nut 14-20 30 135793 Retainer Clip 75 136312 Button Guard 31 135791 Adapter Hose Outlet 76 160020 Hex Hd Cap Screw 32 160581 O-Ring 14-20 x 1 SST 33 135790 Piston 77 113869 Switch Bracket 34 162308 Spring Soft Serve 78 136110 Button Cover Switch 35 135792 Drain Port 79 162314 Spring 36 160611 O-Ring 80 150456 Switch Pump Safety 37 135896 Hose 24 81 135004 Switch Cover 38 160738 Hose Clamp 82 160296 Screw RH 39 136288 Keeper 6-32 x 1-14 40 160554 O-Ring 83 160146 Lockwasher 6 41 160368 Wing Nut Int Tooth 42 130054 Diaphragm Housing 84 160393 Flatwasher 6 43 199019 Diaphragm 85 160309 Hex Nut 6-32 44 196074 Air Tube-Curved 86 114572 Hose Clamp 45 163433 Air Meter - 20 87 160048 14-20 x 12 TRHM
(other sizes available) 88 160308 6-32 x 516 RDHM 89 114581 Circuit Breaker Bracket
Not Shown 90 163109 Stop Pivot 112791 DPR Pressure Gauge
41
Mfg by H C DUKE amp SON INC 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
42
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Unit does not operate 1 Fuse blown at main disconshy 1 Check fuse size check for low nect voltage if not within 10 of
nameplate rating install transformer or call power company
2 Beater motor out on overload 2 Press starter reset button and check for low voltage Check producllemperalure and overrun
3 Disconnected or broken wife 3 Check wiring and wire connecshyin electrical circuit lions repair or replace lead
wires as necessary
4 Faulty selector switch 4 Replace selector switch
5 Out on high pressure 5 Check for low waler supply or dirty air conden ser
6 Out on low pressure 6 Check limit control and freon charge
Compressor does not operate f Troubte in compressor con- I Refer to Trouble-Shootingshyor operates improperly densing circuit Compressor I Condensing
Circuit
2 Faulty capacitor assembly 2 Replace capaCitor assembly (Single phase only)
3 Faulty contactor 3 Replace contaclOr or pOints
Compressor operates but 1 Loose con neclion at motor 1 Tighten connection beater motor does not starter coil (electrical box)
2 Open starter coil 2 Replace coil
3 Faulty capacitor assembly 3 Replace capaCitor assembly (Single phase only)
Dispensed product too hard 1 Cylinder themostat erratic 1 Adjust thermo slat or replace or set too low
2 Faulty time delay relay 2 Replace time delay relay
3 Solenoid valve leaking 3 Replace solenoid valve
4 Low suction pressure 4 See chart on page 15 for adshyjustments
Leaking of mix from rear housshy 1 Damaged bealer shalt seal 1 Replace shaft seal or O-ring ing discharge tube to drip tray inside seal assy
Mig by H C DUKE amp SON INC bull 2116 Eighlh Avenue Easl Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Mix leaking at dispensing head 1 Faulty 4 O-Ring
2 Head not properly installed
1 Replace 4 O-Ring
2 Install head properly
Mix sours in cabinet 1 Cabinet thermostat setting too high
2 Cabinet thermostat detective
3 Cabinet solenoid valve deshyfective
4 Cabinet switch defective
5 Beater motor out on overshyload (cab side)
1 Adjust thermostat
2 Replace thermostat
3 Replace coil or solenoid
4 Replace cabinet switch
S Reset overload for beater motor See pg 42 unit does not operate
Cabinet too COld
Machine runs continually and Product continues to get colder
Compressor operates only when dispensing
Unit runs conMuously Product does nol reach 180 F temperature
6 Door sWitch defectIVe
1 Cabinet thermostat setting too low
2 Defective thermostat
3 Cabinet solenoid stuck open
4 Cabinet expansion valve set too low
1 Plunger switch out of adjustshyment
2 Su ction pressure too low
3 Defective plunger switch
4 Plunger switch rod engaged
5 Faulty time delay relay
6 Starter or relay contacts stuck
7 Faulty thermostat or bulb not deep enough in well
6 Replace door SWitch
1 Adjust thermostat
2 Replace thermostat
3 Replace solenoid
4 Adjust cabinet expansion valve (See pg 15)
1 Adjust plunger switch
2 Adjust expansion valve and check freon charge
3 Replace plunger switch
4 Close plunger completely
5 Replace time delay relay
I 6 Check contacts i
7 Check bulb location or replace thermostat
1 Cylinder themostat setting 1 Adjust thermostat or replace too high or thermostat deshyfective
1 Trouble in compressor I condensing system
2 ExpanSion valve setiing is too high
3 Low on refrigeranl
1 See Trouble-Shooling-CompressorI Condensing circuit
2 Adjust expansion valve
3 Check and repair leak and recharge
1
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE SLUSHbull
43
44
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Dispensed product too soft (Product temperature above 21 0 F)
1 Automatic expansion yalve incorrectly set or erratic in operation
-2 Leak in refrigeration system
resulting in little or no refrigeration
1 Adjust or replace expanSion valve
2 Pump down system or remove refrigerant charge repair leak evacuate and recharge
3 Excessive oil in system 3 Drain compressor to proper oil leyel pump down and flush system
4 Thermostat set too high taulty
or 4 Adiust thermostat or replace
Product dispenses slOWly out dispensing head
1 Reverse rotation 1 Change rotation to clockshywise from front of freezer
2 Dispensing speed adjustshyment boll too far down
2 Adjust bolt upward
3 Pum p problem 3 See pump Trouble-Shooting chart
4 Product too cold 4 See dispensed product too hard pg42
TROUBLE-SHOOTING CHART COMPRESSORICONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor will not start -hums intermittently (cycling on oyerload)
1 Improperly wired
2 Low line Yoltage
3 Open starting capacitor (single phase only)
4 High discharge pressure
1 Check wiring against diagram
2 Ask power company to increase YOltage to not less than 10 below nameplate rating or install transformer Check for inadequate wire size
3 Replace starting capacitor
4 CheCK water regulating valve setting Check water or air condenser and clean if necessary Make sure disshycharge shut-oft valve is open
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor starts but remains 1 Low line voltage 1 Ask power company to in start windings increase voltage to not less (Single phase only) than 10 below nameplate
rating or install transrormer
2 Improperly wired 2 Check wiring against drawing Check wire size
3 Running capacitor shorted 3 Check by disconnecting running capacitor
4 Starting capacitor weak 4 Check capacitor replace
5 High disCharge pressure 5 Check water regulating valve check water or air condenser and clean il necessary Check discharge shut-off valve
Starter burned out 1 Low line voltage 1 Ask power company to inshycrease voltage to not less than 10 below nameplate rating or install transformer
2 Excessive line voltage 2 Ask power company to reduce voltage to maximum of 10 over nameplate rating
Starting capacitors burn out 1 Voltage 100 low 1 Ask power company to (Single phase only) increase voltage to not less
than 10 below nameplate rating or install translonmer
2 Improper capacitor 2 Replace capacitor with properly rated capacitor as listed in manual
Running capacitors burn out 1 Excessive line voltage 1 Ask power company to reshy(Single phase only) duce line voltage to not more
than 10 above rating 01 motor
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
45
46
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Unit operates long or continuously
1 Shortage of gas
2 Dirty condenser
3 Moisture in system
4 Compressor failing
1 Repair leak and recharge
2 Clean condenser
3 Evacuate and recharge system
4 Check compressor lor proper pressures If inadequate replace compressor
Head pressure too high 1 Refrigerant overcharge
2 Air in system
3 Dirty condenser (air cooled)
4 Unit location too warm (air cooled)
5 Restricted water cooled condenser
6 Water turned off or defective
1 Purge system
2 Purge system evacuate and recharge
3 Clean condenser
4 Relocate unIt away from restriction Place nothing against back or on top of unit
5 Clean or replace condenser
6 Turn on water Or replace water regulating valve regulating valve
Head pressure too low 1 Shortage 01 refrigerant 1 Repair leak and recharge
2 Water regulating valve open 2 Adjust regulating valve too wide
Water 1I0wing through water 1 Water regulating valve 1 Replace water regulating valve waste line when unit is not in operation
defective
Noisy compressor 1 Tubing raUle 1 Bend tubes away from contact
NOTE Refer to warranty card prior to compressor replacement
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING DPR PUMP
TROUBLE PROBABLE CAUSE REMEDY
Pump will not run 1 Pump cover removed 1 Install pump cover
2 Pressure switch actuating 2 Free bulton-check spring and
bulton stuck open (in) pressure switch alignment
3 Pressure switch burned out 3 Replace pressure switch
4 Starting switch in motor bad 4 Install new starting switch
5 Motor burned out 5 Replace motor
6 Circuit breaker kicked out 6 Allow to re- set Replace it or faulty circuit breaker will not
automatically re-set
Motor runs-cam drive plate 1 Loose cam drive plate 1 Tighten set screw in cam will not turn drive plate Check woodruff key
2 Gear stripped 2 Replace gear
Pump will not shut off Mix 1 Pressure swilch actuating 1 Free button-check pressure shoots out pressure relief bulton stuck closed (out) switch alignment
2 Pressure switch stuck in 2 Replace pressure switch closed position
3 Pressure switch assy out 3 Using pressure gauge adjust of adjustment pressure
4 Dirty or plugged diaphragm 4 Disassemble and clean housing (Ref 42) housing
5 Defective O-Ring on 5 Replace O-Ring pressure relief piston
Pump will not prime 1 Insufficient supply of mix 1 Replenish mix supply
2 Piston O-ring defective-no 2 Replace piston O-Ring and suction lubricate
3 Washer valve not sealing 3 Replace washer valve DO NOT LUBRICATE
Pump primes No pressure in 1 Sleeve (Rei 29) not sealing 1 Replace sleeve DO NOT cylinder properly LUBRICATE
2 Loose hose connection on 2 Install or tighten hose clamp pump valve housing (Ref 27)
Mix shoots out Of air intake line 1 Washer valve (Ref 25) 1 Replace washer valve-DO not sealing properly NOT LUBRICATE
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOfT SERVE bull SHAKE bull SLUSH
47
48
TROUBLE-SHOOTING DPR PUMP
Too much air overrun too high-popping problems
Product dispenses slowly out of disPenSing head
1 Air meter too large (Ref 45)
2 Air leak befween mix conshytainer and mix inlet
3 Air line hose crackedshysucking air (Ref 44)
4 Pump pressure too lowshycylinder not full
1 Pump pressure too low
2 PrOduct too cold
3 Low overrun
Diaphragm housing leaking mix 1 Diaphragm housing loose
2 Diaphragm defective
Piston drive assy noisy 1 Bushing bearing worn
2 Defective gear in gear motor
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SIfAKE bull SLUSH
REMEDY
1 Replace washer valve-DO NOT LUBRICATE
2 Install clamp on hose
1 Replace O-Ring and LUBRIshyCATE
1 Clean or replace air meter
2 Replace tube
1 Install smaller air meier
2 Repair as needed
3 Replace air line hose
4 Using pressure gauge adjust pressure switch
1 Using pressure gauge adjust pump pressure
2 Check product temperatureshyshould be about 18 F
3 Check meter-if plugged-clean
1 Tighten wing nuls (Ref 41)
2 Replace diaphragm (Ref 43)
1 Replace bushing bearing (Ref 19)
2 Replace gear
TROUBLE
Mix inlet hose loses prime
Mix on top of piston
PROBABLE CAUSE
1 Washer valve (Ref 25) not sealing properly
2 Mix inlet hose loose
1 Piston O-Ring leaking (Ref 22)
No Air (Overrun) 11 Ai r meter plugged (Ref I 45)
2 Curved air tube pinched
--
DPR PUMP aI
PART NO 199019(i) PART NO 199020 reg DIAPHRAGM RUBBER SLEEVE
PART NO159295 PART NO 159282reg O-RING O-RING0
PART NO 160581reg O-RING
o PART NO PART NO
PART NO199011() 160611(8) 160582 WASHER VALVE O-RING O-RING
PISTON
cJ
DIAPHRAGM HOUSING
CYLINDER
VALVE HOUSIN6 ASSEMBLY
PUUPOUTLET
DRAIN PORT
I PHNO309-755-4553 O-RING CHART HCDUKEampSONINC I
1 I84Z08 SOFT SERVE DISPENSING HEADS I
o PART NO 1605620
PAR~159--1b
PART NO PART NO 1605841 59295()
I PHNO 309-755-4553 O-R ING CHART HCDUKEampSONINC I
- Cover
- Table of Contents
- Safety
- Uncrating amp Inspection13
- Explanation of Electrical Controls
- Operation of Machine
- General Information
- Maintenance amp Adjustment
- Parts Breakdowns
- Trouble-Shooting Charts
- O-ring Charts
-
SOFTmiddotSERVE bull DOUBLE CAB - AIR COOLED REF PART No 1 155120 2 159020 3 151080 4 155400 5 6 159203 7 155051 8 112901 9 151044 9A 151052 10 11 12 14 154976
14A 154975 15 155401 16 155403 17 155443 18 155442 19
21 155422
DESCRIPTION Condenser Fan Blade Fan Motor Automatic Expansion Valve (Cylinder) Reducer (see gear reducer breakdown page 36) Sight Glass Drier Receiver Assembly Motor 1-Phase 230 Volt Motor 3-Phase 208230 Volt Driven Pulley (order by freezer serial no) Belt (ordr by freezer serial no) Driver Pulley (order by freezer serial no) Compressor 230160 151351 Capacitor Relay Assembly (Single Phase)
150247 Start Capacitor 150249 Run Capacitor 150245 Relay
Compressor 208-230360 High Pressure Cut-Out Low Pressure Cut-Out Cabinet Thermostat Low Temp Thermostat NOT USED ON THIS MODEL Motor Capacitors single phase only (order by freezer serial no) Solenoid Valve
Note For All 50-Cycle Freezers Order By Freezer Serial Number
Vl Vl
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prinled In USA
CAB PARTS BREAKDOWN
REF PART No DESCRIPTION PART No DESCRIPTION 1 155109 Cabinet Coil 136297 Condensate Pan (Not Shown) 1A 155113 Motor Cabinet Fan 196092 Mix Tank 7-12 Gal 1B 155099 Fan Blade Cabinet Coil 113997 Front Lid Mix Container
7-12 Gal 136248-01 Rear Lid Mix Cont 7-12 Gal
10 155416 CAB Automatic Expansion 130092 Mix Tube Valve 196028 Mix Tank 10 Gal
137119 Probe 11 -1 4 shy1E 155114 Fan Grill amp Bracket 7-12 Gal Container 1F 155116 Knob 137119-01 Probe 10-34 shy2 113898 DPR Pump Less Motor 7-12 amp 10
(see pump breakdown Gal Container pg 38) 137119-02 Probe 10-14 shy
3 196061 Mix Hose (sold by the foot) 10 Gal Container 4 150416 Door Switch 137120 Base Probe Mtg 4A 114630 Actuator Door Switch 160500 O-Ring
(Not Shown) 114572 Hose Clamp (Not Shown) 5 150527 Retractable Cordset 34
MIg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prlmd UsA
MERCHANDISING ASSY
PART No 115108 115107
PART No
196107-01 196108-01 114610 114608 115132 199030
PART No 162105 162106 112978 158004 158021 158022 158078 158000 158056 158000A 158014 158014A 161000 158049
DESCRIPTION 2S Merchandiser-927-957-978CAB 24 Merchandiser-917CAB
DRIP TRAY
DESCRIPTION
24 Drip Tray-917CAB 26- Drip Tray-927-957-978CAB 24 Tray Insert-917CAD 26 Tray Insert-978CAB-927CAB 26 Tray Insert-957CAB Rubber Bumper (only)
DESCRIPTION Caster With Brake Caster Without Brake Leg-6 4 Cylinder Brush Mix Hose Brush 58 Dia w6 Ft Handle 14 Pump Brush Drain Tube Brush Petrol Gel (12 tube carton) Petrol Gel (6 tube carton) Pe1rol Gel (per tube) Stera Sheen (per case) Stera Sheen (per jar) Pocket Thermometer 1 Dial Z32 Overrun Scale
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SNAKE bull SLUSH
35
36
GEAR REDUCERS Order By Freezer Serial Number
Model 3 CB
153345 5-1 Ratio B side 153004 High Speed Cup ~ (2 ea required) 153005 High Speed Bearing (2 ea required) 153008 Slow Speed Cup (2 ea required) 153009 Slow Speed Bearing (2 ea required) 153052 Slow Speed Seal (2 ea required) 153054 High Speed Seal (2 ea required) 153313 Brass Gear 5-1 Ratio 153336 Slow Speed Shaft Only 5-1 Ratio 153316 Worm Gear On Shaft 5-1 Ratio 114873 Gasket Set
Model 4 CB
153342 10-1 Ratio A side 153343 10-1 Ratio B side
153014 High Speed Cup (2 ea required) 153015 High Speed Bearing (2 ea required) 153011 Slow Speed Cup (2 ea required) 153012 Slow Speed Bearing (2 ea required) 153051 Slow Speed Seal (2 ea required) 153053 High Speed Seal (2 ea required) 153349 Brass Gear 10-1 Ratio 153339 Slow Speed Shaft OnIy 10-1 Ratio 153347 Worm Gear on Shaft 10-1 Ratio 114874 Gasket Set
Winlwin Model
153341 Wintwin 10-1 Ratio A and B Side
153014 High Speed Cup (2 ea required) 153015 High Speed Bearing (2 ea required) 153011 Slow Speed Cup (2 ea required) 153012 Slow Speed Bearing (2 ea required) 153051 Slow Speed Seal (2 ea required) 153053 High Speed Seal (2 ea required) 153349 Brass Gear 153350 Slow Speed Shaft Only 153348 Worm Gear on Shaft 11 4874 Gasket Set
158055 Gear Reducer OU 51001
Drive Coupling (Order By Machine Serial Number)
Mfg by H C DUKE amp SON INC bull 2115 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
917 amp 927 Beater Shaft Assembly
957 Beater Shaft
Item Part No Description
1 196079 Bushing-Cylinder 2 114752 Beater-Assy Long (Shaft) 3 137334 Blade-Scraper Soft Serve 4- 160500 O-Ring (Shaft Seal) 5- 133098 Bushing (Washer-Shaft Seal) 6 160557 Seal-Beater Shaft
-Items 4-6 111875 Seal-Assy Shaft (Complete)
31
1 113438 2 196079 3 137334 4- 160500 5- 133098 6 160557
-Items 4-6 111875
Shaft-Assy Beater Bushing-Cylinder Blade-Scraper O-ring (Shaft Seal) Washer-Shaft Seal (Bushing) Seal-Beater Shaft (Cup)
Seal-Assy Shaft (Complete)
ao
DISPENSING HEAD
16
r
Q
--~
-----_
REF PART No DESCRIPTION Tl3o 6 119928- Door Assembly shy Complete (Items 7-14) 11637- 7 196688 Door shy Less Parts
a 134921 Spigot shy Less Extension 9 134922 Handle Extension shy Spigot
10 162624 Handle 11 159295 OmiddotRings shy Spigot (Lots of 5)12 159309 O-ring shy 4 - Door 13 196066 Air Relief Screw 14 160621 a-Ring shy Air Relief Screw (Lots of 5)15 136126 Rod - Spigot Switch shy 917 8 927 16 136798 HMdKnob
38
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illmols 61244
SUPERIOR QUAUlY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
Duke Soft Serve Freezer Models 917R and 927RN
5 -______
7
6
UPDATEDDispense Head Assembly
Item Part No
115130 1 116321 2 160583 3 115129 4 160562 5 136126 6 134921 SA 162624 68 134922 7 159295 8 160584 9 162625 9A 114341 10 196185 10A 137870 108 136713
116410
Includes items 1-4 6-8
Description
Head-Assy Dispense (Complete) Head-Assy wActualor O-ring (Head-4-inch) Bleeder-Assy (Air Relief Plug) O-ring (Bleeder-Assy) Rod-Spigot Switch Spigot-long Single Handle-Black Tapered Handle-Spigot (Stainless Steel) O-ring (Spigot) O-ring (Extension) Knob-Hand Stud-Assy Cylinder 1-15116 inch (not shown) Nouie-Slar Adapter (accessory) Adapter-Yogurt Nozzle (not shown) Extension-Spigot (accessory-cake not shown) Kit-Dispense Head Switch
( Use only original or authorized replacement parts with this freezer )
DISPENSING HEAD
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH uu
REF PART No 114765
1 196082 2 114313 3 137018 5 136618 6 162626 8 134499 9 162625
10 115129 11 136794 12 159309 13 159295 14 160562 15 136713 16 160584
DESCRIPTION Door Assy-Complete Door-Less Parts Spigot Assy-Side Spigot Only-Center Extension Only-Center Handle Stud-Handle Stop Hand Knob Air Re1ief-Assy Rod-Spigot Switch O-Ring-4-Door O-Ring-Spigot O-Ring-Air Relief Extension-Spigot a-Ring
39
40
PUMP MOTOR AND HOUSING ASSEMBLY SAFETY SWITCH ASSEMBLY
PRESSURE SWITCH ASSEMBLY ijreg~
I
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH IIIUaA
CAB DPR PUMP BREAKDOWN
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 196091 Pump Base 46 114009 Pump Cover 2 136088 Pump Support 47 113464 Base Bracket Assembly 3 150784 Strain Relief Bushing 48 135725 Stud 1-78 4 Power Cord 49 160131 516 Flatwasher 5 160075 10-24 x 38 Screw 50 160293 Speed Clip 6 135416 Cover Electric Box 51 135724 Button 7 160141 14 Lockwasher 52 160140 10 Lockwasher 8 160491 14-20 x 34 Socket Screw 53 135726 Stud 3 9 113497 Motor Cord 18-3 SJT 54 160109 10-24 Hex Nut 10 151127 Motor 40 RPM Soft Serve 55 135729 Switch Actuator 11 160023 14-20 x 1 Screw 56 135731 Stop - Max Pressure 12 153317 Half Moon Key 57 162315 Spring - Soft Serve 13 112925 Cam Drive Plate Assembly 58 160138 10 Flat Washer 14 160495 14-20 x 14 Set Screw 59 160304 10-24 Stop Nut 15 160369 Pin 60 150456 Pressure Switch 16 134614 Swing Clamp 61 135744 Insulator - Fiber 17 134521 Adjusting Clamp 62 160381 6-32 x 1 Socket Screw 18 160488 Thumb Screw 63 160393 6 Flatwasher 19 134604 Bearing Bushing 64 160146 6 Lockwasher 20 134602 Connecting Rod 65 160309 6-32 Hex Nut 21 134601 Piston 66 160006 6-32 x 14 Screw 22 159295 O-Ring 67 160001 8-32 x 38 Screw 23 134603 Wrist Pin 68 160470 8 Lockwasher 24 136089 Cylinder 69 150481 Circuit Breaker 25 199011 Washer Valve 70 135727 Switch Bracket 26 159282 O-Ring 71 136311 Spacer - Cover Switch 27 113839 Pump Valve Housing 72 160028 Truss Head Screw
Assembly (Metal) 14-20 x 34 SST 28 160582 O-Ring 73 160141 Lockwasher 14 29 199020 Sleeve Rubber 74 160104 Hex Nut 14-20 30 135793 Retainer Clip 75 136312 Button Guard 31 135791 Adapter Hose Outlet 76 160020 Hex Hd Cap Screw 32 160581 O-Ring 14-20 x 1 SST 33 135790 Piston 77 113869 Switch Bracket 34 162308 Spring Soft Serve 78 136110 Button Cover Switch 35 135792 Drain Port 79 162314 Spring 36 160611 O-Ring 80 150456 Switch Pump Safety 37 135896 Hose 24 81 135004 Switch Cover 38 160738 Hose Clamp 82 160296 Screw RH 39 136288 Keeper 6-32 x 1-14 40 160554 O-Ring 83 160146 Lockwasher 6 41 160368 Wing Nut Int Tooth 42 130054 Diaphragm Housing 84 160393 Flatwasher 6 43 199019 Diaphragm 85 160309 Hex Nut 6-32 44 196074 Air Tube-Curved 86 114572 Hose Clamp 45 163433 Air Meter - 20 87 160048 14-20 x 12 TRHM
(other sizes available) 88 160308 6-32 x 516 RDHM 89 114581 Circuit Breaker Bracket
Not Shown 90 163109 Stop Pivot 112791 DPR Pressure Gauge
41
Mfg by H C DUKE amp SON INC 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
42
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Unit does not operate 1 Fuse blown at main disconshy 1 Check fuse size check for low nect voltage if not within 10 of
nameplate rating install transformer or call power company
2 Beater motor out on overload 2 Press starter reset button and check for low voltage Check producllemperalure and overrun
3 Disconnected or broken wife 3 Check wiring and wire connecshyin electrical circuit lions repair or replace lead
wires as necessary
4 Faulty selector switch 4 Replace selector switch
5 Out on high pressure 5 Check for low waler supply or dirty air conden ser
6 Out on low pressure 6 Check limit control and freon charge
Compressor does not operate f Troubte in compressor con- I Refer to Trouble-Shootingshyor operates improperly densing circuit Compressor I Condensing
Circuit
2 Faulty capacitor assembly 2 Replace capaCitor assembly (Single phase only)
3 Faulty contactor 3 Replace contaclOr or pOints
Compressor operates but 1 Loose con neclion at motor 1 Tighten connection beater motor does not starter coil (electrical box)
2 Open starter coil 2 Replace coil
3 Faulty capacitor assembly 3 Replace capaCitor assembly (Single phase only)
Dispensed product too hard 1 Cylinder themostat erratic 1 Adjust thermo slat or replace or set too low
2 Faulty time delay relay 2 Replace time delay relay
3 Solenoid valve leaking 3 Replace solenoid valve
4 Low suction pressure 4 See chart on page 15 for adshyjustments
Leaking of mix from rear housshy 1 Damaged bealer shalt seal 1 Replace shaft seal or O-ring ing discharge tube to drip tray inside seal assy
Mig by H C DUKE amp SON INC bull 2116 Eighlh Avenue Easl Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Mix leaking at dispensing head 1 Faulty 4 O-Ring
2 Head not properly installed
1 Replace 4 O-Ring
2 Install head properly
Mix sours in cabinet 1 Cabinet thermostat setting too high
2 Cabinet thermostat detective
3 Cabinet solenoid valve deshyfective
4 Cabinet switch defective
5 Beater motor out on overshyload (cab side)
1 Adjust thermostat
2 Replace thermostat
3 Replace coil or solenoid
4 Replace cabinet switch
S Reset overload for beater motor See pg 42 unit does not operate
Cabinet too COld
Machine runs continually and Product continues to get colder
Compressor operates only when dispensing
Unit runs conMuously Product does nol reach 180 F temperature
6 Door sWitch defectIVe
1 Cabinet thermostat setting too low
2 Defective thermostat
3 Cabinet solenoid stuck open
4 Cabinet expansion valve set too low
1 Plunger switch out of adjustshyment
2 Su ction pressure too low
3 Defective plunger switch
4 Plunger switch rod engaged
5 Faulty time delay relay
6 Starter or relay contacts stuck
7 Faulty thermostat or bulb not deep enough in well
6 Replace door SWitch
1 Adjust thermostat
2 Replace thermostat
3 Replace solenoid
4 Adjust cabinet expansion valve (See pg 15)
1 Adjust plunger switch
2 Adjust expansion valve and check freon charge
3 Replace plunger switch
4 Close plunger completely
5 Replace time delay relay
I 6 Check contacts i
7 Check bulb location or replace thermostat
1 Cylinder themostat setting 1 Adjust thermostat or replace too high or thermostat deshyfective
1 Trouble in compressor I condensing system
2 ExpanSion valve setiing is too high
3 Low on refrigeranl
1 See Trouble-Shooling-CompressorI Condensing circuit
2 Adjust expansion valve
3 Check and repair leak and recharge
1
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE SLUSHbull
43
44
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Dispensed product too soft (Product temperature above 21 0 F)
1 Automatic expansion yalve incorrectly set or erratic in operation
-2 Leak in refrigeration system
resulting in little or no refrigeration
1 Adjust or replace expanSion valve
2 Pump down system or remove refrigerant charge repair leak evacuate and recharge
3 Excessive oil in system 3 Drain compressor to proper oil leyel pump down and flush system
4 Thermostat set too high taulty
or 4 Adiust thermostat or replace
Product dispenses slOWly out dispensing head
1 Reverse rotation 1 Change rotation to clockshywise from front of freezer
2 Dispensing speed adjustshyment boll too far down
2 Adjust bolt upward
3 Pum p problem 3 See pump Trouble-Shooting chart
4 Product too cold 4 See dispensed product too hard pg42
TROUBLE-SHOOTING CHART COMPRESSORICONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor will not start -hums intermittently (cycling on oyerload)
1 Improperly wired
2 Low line Yoltage
3 Open starting capacitor (single phase only)
4 High discharge pressure
1 Check wiring against diagram
2 Ask power company to increase YOltage to not less than 10 below nameplate rating or install transformer Check for inadequate wire size
3 Replace starting capacitor
4 CheCK water regulating valve setting Check water or air condenser and clean if necessary Make sure disshycharge shut-oft valve is open
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor starts but remains 1 Low line voltage 1 Ask power company to in start windings increase voltage to not less (Single phase only) than 10 below nameplate
rating or install transrormer
2 Improperly wired 2 Check wiring against drawing Check wire size
3 Running capacitor shorted 3 Check by disconnecting running capacitor
4 Starting capacitor weak 4 Check capacitor replace
5 High disCharge pressure 5 Check water regulating valve check water or air condenser and clean il necessary Check discharge shut-off valve
Starter burned out 1 Low line voltage 1 Ask power company to inshycrease voltage to not less than 10 below nameplate rating or install transformer
2 Excessive line voltage 2 Ask power company to reduce voltage to maximum of 10 over nameplate rating
Starting capacitors burn out 1 Voltage 100 low 1 Ask power company to (Single phase only) increase voltage to not less
than 10 below nameplate rating or install translonmer
2 Improper capacitor 2 Replace capacitor with properly rated capacitor as listed in manual
Running capacitors burn out 1 Excessive line voltage 1 Ask power company to reshy(Single phase only) duce line voltage to not more
than 10 above rating 01 motor
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
45
46
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Unit operates long or continuously
1 Shortage of gas
2 Dirty condenser
3 Moisture in system
4 Compressor failing
1 Repair leak and recharge
2 Clean condenser
3 Evacuate and recharge system
4 Check compressor lor proper pressures If inadequate replace compressor
Head pressure too high 1 Refrigerant overcharge
2 Air in system
3 Dirty condenser (air cooled)
4 Unit location too warm (air cooled)
5 Restricted water cooled condenser
6 Water turned off or defective
1 Purge system
2 Purge system evacuate and recharge
3 Clean condenser
4 Relocate unIt away from restriction Place nothing against back or on top of unit
5 Clean or replace condenser
6 Turn on water Or replace water regulating valve regulating valve
Head pressure too low 1 Shortage 01 refrigerant 1 Repair leak and recharge
2 Water regulating valve open 2 Adjust regulating valve too wide
Water 1I0wing through water 1 Water regulating valve 1 Replace water regulating valve waste line when unit is not in operation
defective
Noisy compressor 1 Tubing raUle 1 Bend tubes away from contact
NOTE Refer to warranty card prior to compressor replacement
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING DPR PUMP
TROUBLE PROBABLE CAUSE REMEDY
Pump will not run 1 Pump cover removed 1 Install pump cover
2 Pressure switch actuating 2 Free bulton-check spring and
bulton stuck open (in) pressure switch alignment
3 Pressure switch burned out 3 Replace pressure switch
4 Starting switch in motor bad 4 Install new starting switch
5 Motor burned out 5 Replace motor
6 Circuit breaker kicked out 6 Allow to re- set Replace it or faulty circuit breaker will not
automatically re-set
Motor runs-cam drive plate 1 Loose cam drive plate 1 Tighten set screw in cam will not turn drive plate Check woodruff key
2 Gear stripped 2 Replace gear
Pump will not shut off Mix 1 Pressure swilch actuating 1 Free button-check pressure shoots out pressure relief bulton stuck closed (out) switch alignment
2 Pressure switch stuck in 2 Replace pressure switch closed position
3 Pressure switch assy out 3 Using pressure gauge adjust of adjustment pressure
4 Dirty or plugged diaphragm 4 Disassemble and clean housing (Ref 42) housing
5 Defective O-Ring on 5 Replace O-Ring pressure relief piston
Pump will not prime 1 Insufficient supply of mix 1 Replenish mix supply
2 Piston O-ring defective-no 2 Replace piston O-Ring and suction lubricate
3 Washer valve not sealing 3 Replace washer valve DO NOT LUBRICATE
Pump primes No pressure in 1 Sleeve (Rei 29) not sealing 1 Replace sleeve DO NOT cylinder properly LUBRICATE
2 Loose hose connection on 2 Install or tighten hose clamp pump valve housing (Ref 27)
Mix shoots out Of air intake line 1 Washer valve (Ref 25) 1 Replace washer valve-DO not sealing properly NOT LUBRICATE
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOfT SERVE bull SHAKE bull SLUSH
47
48
TROUBLE-SHOOTING DPR PUMP
Too much air overrun too high-popping problems
Product dispenses slowly out of disPenSing head
1 Air meter too large (Ref 45)
2 Air leak befween mix conshytainer and mix inlet
3 Air line hose crackedshysucking air (Ref 44)
4 Pump pressure too lowshycylinder not full
1 Pump pressure too low
2 PrOduct too cold
3 Low overrun
Diaphragm housing leaking mix 1 Diaphragm housing loose
2 Diaphragm defective
Piston drive assy noisy 1 Bushing bearing worn
2 Defective gear in gear motor
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SIfAKE bull SLUSH
REMEDY
1 Replace washer valve-DO NOT LUBRICATE
2 Install clamp on hose
1 Replace O-Ring and LUBRIshyCATE
1 Clean or replace air meter
2 Replace tube
1 Install smaller air meier
2 Repair as needed
3 Replace air line hose
4 Using pressure gauge adjust pressure switch
1 Using pressure gauge adjust pump pressure
2 Check product temperatureshyshould be about 18 F
3 Check meter-if plugged-clean
1 Tighten wing nuls (Ref 41)
2 Replace diaphragm (Ref 43)
1 Replace bushing bearing (Ref 19)
2 Replace gear
TROUBLE
Mix inlet hose loses prime
Mix on top of piston
PROBABLE CAUSE
1 Washer valve (Ref 25) not sealing properly
2 Mix inlet hose loose
1 Piston O-Ring leaking (Ref 22)
No Air (Overrun) 11 Ai r meter plugged (Ref I 45)
2 Curved air tube pinched
--
DPR PUMP aI
PART NO 199019(i) PART NO 199020 reg DIAPHRAGM RUBBER SLEEVE
PART NO159295 PART NO 159282reg O-RING O-RING0
PART NO 160581reg O-RING
o PART NO PART NO
PART NO199011() 160611(8) 160582 WASHER VALVE O-RING O-RING
PISTON
cJ
DIAPHRAGM HOUSING
CYLINDER
VALVE HOUSIN6 ASSEMBLY
PUUPOUTLET
DRAIN PORT
I PHNO309-755-4553 O-RING CHART HCDUKEampSONINC I
1 I84Z08 SOFT SERVE DISPENSING HEADS I
o PART NO 1605620
PAR~159--1b
PART NO PART NO 1605841 59295()
I PHNO 309-755-4553 O-R ING CHART HCDUKEampSONINC I
- Cover
- Table of Contents
- Safety
- Uncrating amp Inspection13
- Explanation of Electrical Controls
- Operation of Machine
- General Information
- Maintenance amp Adjustment
- Parts Breakdowns
- Trouble-Shooting Charts
- O-ring Charts
-
CAB PARTS BREAKDOWN
REF PART No DESCRIPTION PART No DESCRIPTION 1 155109 Cabinet Coil 136297 Condensate Pan (Not Shown) 1A 155113 Motor Cabinet Fan 196092 Mix Tank 7-12 Gal 1B 155099 Fan Blade Cabinet Coil 113997 Front Lid Mix Container
7-12 Gal 136248-01 Rear Lid Mix Cont 7-12 Gal
10 155416 CAB Automatic Expansion 130092 Mix Tube Valve 196028 Mix Tank 10 Gal
137119 Probe 11 -1 4 shy1E 155114 Fan Grill amp Bracket 7-12 Gal Container 1F 155116 Knob 137119-01 Probe 10-34 shy2 113898 DPR Pump Less Motor 7-12 amp 10
(see pump breakdown Gal Container pg 38) 137119-02 Probe 10-14 shy
3 196061 Mix Hose (sold by the foot) 10 Gal Container 4 150416 Door Switch 137120 Base Probe Mtg 4A 114630 Actuator Door Switch 160500 O-Ring
(Not Shown) 114572 Hose Clamp (Not Shown) 5 150527 Retractable Cordset 34
MIg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH Prlmd UsA
MERCHANDISING ASSY
PART No 115108 115107
PART No
196107-01 196108-01 114610 114608 115132 199030
PART No 162105 162106 112978 158004 158021 158022 158078 158000 158056 158000A 158014 158014A 161000 158049
DESCRIPTION 2S Merchandiser-927-957-978CAB 24 Merchandiser-917CAB
DRIP TRAY
DESCRIPTION
24 Drip Tray-917CAB 26- Drip Tray-927-957-978CAB 24 Tray Insert-917CAD 26 Tray Insert-978CAB-927CAB 26 Tray Insert-957CAB Rubber Bumper (only)
DESCRIPTION Caster With Brake Caster Without Brake Leg-6 4 Cylinder Brush Mix Hose Brush 58 Dia w6 Ft Handle 14 Pump Brush Drain Tube Brush Petrol Gel (12 tube carton) Petrol Gel (6 tube carton) Pe1rol Gel (per tube) Stera Sheen (per case) Stera Sheen (per jar) Pocket Thermometer 1 Dial Z32 Overrun Scale
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SNAKE bull SLUSH
35
36
GEAR REDUCERS Order By Freezer Serial Number
Model 3 CB
153345 5-1 Ratio B side 153004 High Speed Cup ~ (2 ea required) 153005 High Speed Bearing (2 ea required) 153008 Slow Speed Cup (2 ea required) 153009 Slow Speed Bearing (2 ea required) 153052 Slow Speed Seal (2 ea required) 153054 High Speed Seal (2 ea required) 153313 Brass Gear 5-1 Ratio 153336 Slow Speed Shaft Only 5-1 Ratio 153316 Worm Gear On Shaft 5-1 Ratio 114873 Gasket Set
Model 4 CB
153342 10-1 Ratio A side 153343 10-1 Ratio B side
153014 High Speed Cup (2 ea required) 153015 High Speed Bearing (2 ea required) 153011 Slow Speed Cup (2 ea required) 153012 Slow Speed Bearing (2 ea required) 153051 Slow Speed Seal (2 ea required) 153053 High Speed Seal (2 ea required) 153349 Brass Gear 10-1 Ratio 153339 Slow Speed Shaft OnIy 10-1 Ratio 153347 Worm Gear on Shaft 10-1 Ratio 114874 Gasket Set
Winlwin Model
153341 Wintwin 10-1 Ratio A and B Side
153014 High Speed Cup (2 ea required) 153015 High Speed Bearing (2 ea required) 153011 Slow Speed Cup (2 ea required) 153012 Slow Speed Bearing (2 ea required) 153051 Slow Speed Seal (2 ea required) 153053 High Speed Seal (2 ea required) 153349 Brass Gear 153350 Slow Speed Shaft Only 153348 Worm Gear on Shaft 11 4874 Gasket Set
158055 Gear Reducer OU 51001
Drive Coupling (Order By Machine Serial Number)
Mfg by H C DUKE amp SON INC bull 2115 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
917 amp 927 Beater Shaft Assembly
957 Beater Shaft
Item Part No Description
1 196079 Bushing-Cylinder 2 114752 Beater-Assy Long (Shaft) 3 137334 Blade-Scraper Soft Serve 4- 160500 O-Ring (Shaft Seal) 5- 133098 Bushing (Washer-Shaft Seal) 6 160557 Seal-Beater Shaft
-Items 4-6 111875 Seal-Assy Shaft (Complete)
31
1 113438 2 196079 3 137334 4- 160500 5- 133098 6 160557
-Items 4-6 111875
Shaft-Assy Beater Bushing-Cylinder Blade-Scraper O-ring (Shaft Seal) Washer-Shaft Seal (Bushing) Seal-Beater Shaft (Cup)
Seal-Assy Shaft (Complete)
ao
DISPENSING HEAD
16
r
Q
--~
-----_
REF PART No DESCRIPTION Tl3o 6 119928- Door Assembly shy Complete (Items 7-14) 11637- 7 196688 Door shy Less Parts
a 134921 Spigot shy Less Extension 9 134922 Handle Extension shy Spigot
10 162624 Handle 11 159295 OmiddotRings shy Spigot (Lots of 5)12 159309 O-ring shy 4 - Door 13 196066 Air Relief Screw 14 160621 a-Ring shy Air Relief Screw (Lots of 5)15 136126 Rod - Spigot Switch shy 917 8 927 16 136798 HMdKnob
38
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illmols 61244
SUPERIOR QUAUlY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
Duke Soft Serve Freezer Models 917R and 927RN
5 -______
7
6
UPDATEDDispense Head Assembly
Item Part No
115130 1 116321 2 160583 3 115129 4 160562 5 136126 6 134921 SA 162624 68 134922 7 159295 8 160584 9 162625 9A 114341 10 196185 10A 137870 108 136713
116410
Includes items 1-4 6-8
Description
Head-Assy Dispense (Complete) Head-Assy wActualor O-ring (Head-4-inch) Bleeder-Assy (Air Relief Plug) O-ring (Bleeder-Assy) Rod-Spigot Switch Spigot-long Single Handle-Black Tapered Handle-Spigot (Stainless Steel) O-ring (Spigot) O-ring (Extension) Knob-Hand Stud-Assy Cylinder 1-15116 inch (not shown) Nouie-Slar Adapter (accessory) Adapter-Yogurt Nozzle (not shown) Extension-Spigot (accessory-cake not shown) Kit-Dispense Head Switch
( Use only original or authorized replacement parts with this freezer )
DISPENSING HEAD
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH uu
REF PART No 114765
1 196082 2 114313 3 137018 5 136618 6 162626 8 134499 9 162625
10 115129 11 136794 12 159309 13 159295 14 160562 15 136713 16 160584
DESCRIPTION Door Assy-Complete Door-Less Parts Spigot Assy-Side Spigot Only-Center Extension Only-Center Handle Stud-Handle Stop Hand Knob Air Re1ief-Assy Rod-Spigot Switch O-Ring-4-Door O-Ring-Spigot O-Ring-Air Relief Extension-Spigot a-Ring
39
40
PUMP MOTOR AND HOUSING ASSEMBLY SAFETY SWITCH ASSEMBLY
PRESSURE SWITCH ASSEMBLY ijreg~
I
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH IIIUaA
CAB DPR PUMP BREAKDOWN
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 196091 Pump Base 46 114009 Pump Cover 2 136088 Pump Support 47 113464 Base Bracket Assembly 3 150784 Strain Relief Bushing 48 135725 Stud 1-78 4 Power Cord 49 160131 516 Flatwasher 5 160075 10-24 x 38 Screw 50 160293 Speed Clip 6 135416 Cover Electric Box 51 135724 Button 7 160141 14 Lockwasher 52 160140 10 Lockwasher 8 160491 14-20 x 34 Socket Screw 53 135726 Stud 3 9 113497 Motor Cord 18-3 SJT 54 160109 10-24 Hex Nut 10 151127 Motor 40 RPM Soft Serve 55 135729 Switch Actuator 11 160023 14-20 x 1 Screw 56 135731 Stop - Max Pressure 12 153317 Half Moon Key 57 162315 Spring - Soft Serve 13 112925 Cam Drive Plate Assembly 58 160138 10 Flat Washer 14 160495 14-20 x 14 Set Screw 59 160304 10-24 Stop Nut 15 160369 Pin 60 150456 Pressure Switch 16 134614 Swing Clamp 61 135744 Insulator - Fiber 17 134521 Adjusting Clamp 62 160381 6-32 x 1 Socket Screw 18 160488 Thumb Screw 63 160393 6 Flatwasher 19 134604 Bearing Bushing 64 160146 6 Lockwasher 20 134602 Connecting Rod 65 160309 6-32 Hex Nut 21 134601 Piston 66 160006 6-32 x 14 Screw 22 159295 O-Ring 67 160001 8-32 x 38 Screw 23 134603 Wrist Pin 68 160470 8 Lockwasher 24 136089 Cylinder 69 150481 Circuit Breaker 25 199011 Washer Valve 70 135727 Switch Bracket 26 159282 O-Ring 71 136311 Spacer - Cover Switch 27 113839 Pump Valve Housing 72 160028 Truss Head Screw
Assembly (Metal) 14-20 x 34 SST 28 160582 O-Ring 73 160141 Lockwasher 14 29 199020 Sleeve Rubber 74 160104 Hex Nut 14-20 30 135793 Retainer Clip 75 136312 Button Guard 31 135791 Adapter Hose Outlet 76 160020 Hex Hd Cap Screw 32 160581 O-Ring 14-20 x 1 SST 33 135790 Piston 77 113869 Switch Bracket 34 162308 Spring Soft Serve 78 136110 Button Cover Switch 35 135792 Drain Port 79 162314 Spring 36 160611 O-Ring 80 150456 Switch Pump Safety 37 135896 Hose 24 81 135004 Switch Cover 38 160738 Hose Clamp 82 160296 Screw RH 39 136288 Keeper 6-32 x 1-14 40 160554 O-Ring 83 160146 Lockwasher 6 41 160368 Wing Nut Int Tooth 42 130054 Diaphragm Housing 84 160393 Flatwasher 6 43 199019 Diaphragm 85 160309 Hex Nut 6-32 44 196074 Air Tube-Curved 86 114572 Hose Clamp 45 163433 Air Meter - 20 87 160048 14-20 x 12 TRHM
(other sizes available) 88 160308 6-32 x 516 RDHM 89 114581 Circuit Breaker Bracket
Not Shown 90 163109 Stop Pivot 112791 DPR Pressure Gauge
41
Mfg by H C DUKE amp SON INC 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
42
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Unit does not operate 1 Fuse blown at main disconshy 1 Check fuse size check for low nect voltage if not within 10 of
nameplate rating install transformer or call power company
2 Beater motor out on overload 2 Press starter reset button and check for low voltage Check producllemperalure and overrun
3 Disconnected or broken wife 3 Check wiring and wire connecshyin electrical circuit lions repair or replace lead
wires as necessary
4 Faulty selector switch 4 Replace selector switch
5 Out on high pressure 5 Check for low waler supply or dirty air conden ser
6 Out on low pressure 6 Check limit control and freon charge
Compressor does not operate f Troubte in compressor con- I Refer to Trouble-Shootingshyor operates improperly densing circuit Compressor I Condensing
Circuit
2 Faulty capacitor assembly 2 Replace capaCitor assembly (Single phase only)
3 Faulty contactor 3 Replace contaclOr or pOints
Compressor operates but 1 Loose con neclion at motor 1 Tighten connection beater motor does not starter coil (electrical box)
2 Open starter coil 2 Replace coil
3 Faulty capacitor assembly 3 Replace capaCitor assembly (Single phase only)
Dispensed product too hard 1 Cylinder themostat erratic 1 Adjust thermo slat or replace or set too low
2 Faulty time delay relay 2 Replace time delay relay
3 Solenoid valve leaking 3 Replace solenoid valve
4 Low suction pressure 4 See chart on page 15 for adshyjustments
Leaking of mix from rear housshy 1 Damaged bealer shalt seal 1 Replace shaft seal or O-ring ing discharge tube to drip tray inside seal assy
Mig by H C DUKE amp SON INC bull 2116 Eighlh Avenue Easl Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Mix leaking at dispensing head 1 Faulty 4 O-Ring
2 Head not properly installed
1 Replace 4 O-Ring
2 Install head properly
Mix sours in cabinet 1 Cabinet thermostat setting too high
2 Cabinet thermostat detective
3 Cabinet solenoid valve deshyfective
4 Cabinet switch defective
5 Beater motor out on overshyload (cab side)
1 Adjust thermostat
2 Replace thermostat
3 Replace coil or solenoid
4 Replace cabinet switch
S Reset overload for beater motor See pg 42 unit does not operate
Cabinet too COld
Machine runs continually and Product continues to get colder
Compressor operates only when dispensing
Unit runs conMuously Product does nol reach 180 F temperature
6 Door sWitch defectIVe
1 Cabinet thermostat setting too low
2 Defective thermostat
3 Cabinet solenoid stuck open
4 Cabinet expansion valve set too low
1 Plunger switch out of adjustshyment
2 Su ction pressure too low
3 Defective plunger switch
4 Plunger switch rod engaged
5 Faulty time delay relay
6 Starter or relay contacts stuck
7 Faulty thermostat or bulb not deep enough in well
6 Replace door SWitch
1 Adjust thermostat
2 Replace thermostat
3 Replace solenoid
4 Adjust cabinet expansion valve (See pg 15)
1 Adjust plunger switch
2 Adjust expansion valve and check freon charge
3 Replace plunger switch
4 Close plunger completely
5 Replace time delay relay
I 6 Check contacts i
7 Check bulb location or replace thermostat
1 Cylinder themostat setting 1 Adjust thermostat or replace too high or thermostat deshyfective
1 Trouble in compressor I condensing system
2 ExpanSion valve setiing is too high
3 Low on refrigeranl
1 See Trouble-Shooling-CompressorI Condensing circuit
2 Adjust expansion valve
3 Check and repair leak and recharge
1
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE SLUSHbull
43
44
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Dispensed product too soft (Product temperature above 21 0 F)
1 Automatic expansion yalve incorrectly set or erratic in operation
-2 Leak in refrigeration system
resulting in little or no refrigeration
1 Adjust or replace expanSion valve
2 Pump down system or remove refrigerant charge repair leak evacuate and recharge
3 Excessive oil in system 3 Drain compressor to proper oil leyel pump down and flush system
4 Thermostat set too high taulty
or 4 Adiust thermostat or replace
Product dispenses slOWly out dispensing head
1 Reverse rotation 1 Change rotation to clockshywise from front of freezer
2 Dispensing speed adjustshyment boll too far down
2 Adjust bolt upward
3 Pum p problem 3 See pump Trouble-Shooting chart
4 Product too cold 4 See dispensed product too hard pg42
TROUBLE-SHOOTING CHART COMPRESSORICONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor will not start -hums intermittently (cycling on oyerload)
1 Improperly wired
2 Low line Yoltage
3 Open starting capacitor (single phase only)
4 High discharge pressure
1 Check wiring against diagram
2 Ask power company to increase YOltage to not less than 10 below nameplate rating or install transformer Check for inadequate wire size
3 Replace starting capacitor
4 CheCK water regulating valve setting Check water or air condenser and clean if necessary Make sure disshycharge shut-oft valve is open
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor starts but remains 1 Low line voltage 1 Ask power company to in start windings increase voltage to not less (Single phase only) than 10 below nameplate
rating or install transrormer
2 Improperly wired 2 Check wiring against drawing Check wire size
3 Running capacitor shorted 3 Check by disconnecting running capacitor
4 Starting capacitor weak 4 Check capacitor replace
5 High disCharge pressure 5 Check water regulating valve check water or air condenser and clean il necessary Check discharge shut-off valve
Starter burned out 1 Low line voltage 1 Ask power company to inshycrease voltage to not less than 10 below nameplate rating or install transformer
2 Excessive line voltage 2 Ask power company to reduce voltage to maximum of 10 over nameplate rating
Starting capacitors burn out 1 Voltage 100 low 1 Ask power company to (Single phase only) increase voltage to not less
than 10 below nameplate rating or install translonmer
2 Improper capacitor 2 Replace capacitor with properly rated capacitor as listed in manual
Running capacitors burn out 1 Excessive line voltage 1 Ask power company to reshy(Single phase only) duce line voltage to not more
than 10 above rating 01 motor
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
45
46
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Unit operates long or continuously
1 Shortage of gas
2 Dirty condenser
3 Moisture in system
4 Compressor failing
1 Repair leak and recharge
2 Clean condenser
3 Evacuate and recharge system
4 Check compressor lor proper pressures If inadequate replace compressor
Head pressure too high 1 Refrigerant overcharge
2 Air in system
3 Dirty condenser (air cooled)
4 Unit location too warm (air cooled)
5 Restricted water cooled condenser
6 Water turned off or defective
1 Purge system
2 Purge system evacuate and recharge
3 Clean condenser
4 Relocate unIt away from restriction Place nothing against back or on top of unit
5 Clean or replace condenser
6 Turn on water Or replace water regulating valve regulating valve
Head pressure too low 1 Shortage 01 refrigerant 1 Repair leak and recharge
2 Water regulating valve open 2 Adjust regulating valve too wide
Water 1I0wing through water 1 Water regulating valve 1 Replace water regulating valve waste line when unit is not in operation
defective
Noisy compressor 1 Tubing raUle 1 Bend tubes away from contact
NOTE Refer to warranty card prior to compressor replacement
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING DPR PUMP
TROUBLE PROBABLE CAUSE REMEDY
Pump will not run 1 Pump cover removed 1 Install pump cover
2 Pressure switch actuating 2 Free bulton-check spring and
bulton stuck open (in) pressure switch alignment
3 Pressure switch burned out 3 Replace pressure switch
4 Starting switch in motor bad 4 Install new starting switch
5 Motor burned out 5 Replace motor
6 Circuit breaker kicked out 6 Allow to re- set Replace it or faulty circuit breaker will not
automatically re-set
Motor runs-cam drive plate 1 Loose cam drive plate 1 Tighten set screw in cam will not turn drive plate Check woodruff key
2 Gear stripped 2 Replace gear
Pump will not shut off Mix 1 Pressure swilch actuating 1 Free button-check pressure shoots out pressure relief bulton stuck closed (out) switch alignment
2 Pressure switch stuck in 2 Replace pressure switch closed position
3 Pressure switch assy out 3 Using pressure gauge adjust of adjustment pressure
4 Dirty or plugged diaphragm 4 Disassemble and clean housing (Ref 42) housing
5 Defective O-Ring on 5 Replace O-Ring pressure relief piston
Pump will not prime 1 Insufficient supply of mix 1 Replenish mix supply
2 Piston O-ring defective-no 2 Replace piston O-Ring and suction lubricate
3 Washer valve not sealing 3 Replace washer valve DO NOT LUBRICATE
Pump primes No pressure in 1 Sleeve (Rei 29) not sealing 1 Replace sleeve DO NOT cylinder properly LUBRICATE
2 Loose hose connection on 2 Install or tighten hose clamp pump valve housing (Ref 27)
Mix shoots out Of air intake line 1 Washer valve (Ref 25) 1 Replace washer valve-DO not sealing properly NOT LUBRICATE
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOfT SERVE bull SHAKE bull SLUSH
47
48
TROUBLE-SHOOTING DPR PUMP
Too much air overrun too high-popping problems
Product dispenses slowly out of disPenSing head
1 Air meter too large (Ref 45)
2 Air leak befween mix conshytainer and mix inlet
3 Air line hose crackedshysucking air (Ref 44)
4 Pump pressure too lowshycylinder not full
1 Pump pressure too low
2 PrOduct too cold
3 Low overrun
Diaphragm housing leaking mix 1 Diaphragm housing loose
2 Diaphragm defective
Piston drive assy noisy 1 Bushing bearing worn
2 Defective gear in gear motor
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SIfAKE bull SLUSH
REMEDY
1 Replace washer valve-DO NOT LUBRICATE
2 Install clamp on hose
1 Replace O-Ring and LUBRIshyCATE
1 Clean or replace air meter
2 Replace tube
1 Install smaller air meier
2 Repair as needed
3 Replace air line hose
4 Using pressure gauge adjust pressure switch
1 Using pressure gauge adjust pump pressure
2 Check product temperatureshyshould be about 18 F
3 Check meter-if plugged-clean
1 Tighten wing nuls (Ref 41)
2 Replace diaphragm (Ref 43)
1 Replace bushing bearing (Ref 19)
2 Replace gear
TROUBLE
Mix inlet hose loses prime
Mix on top of piston
PROBABLE CAUSE
1 Washer valve (Ref 25) not sealing properly
2 Mix inlet hose loose
1 Piston O-Ring leaking (Ref 22)
No Air (Overrun) 11 Ai r meter plugged (Ref I 45)
2 Curved air tube pinched
--
DPR PUMP aI
PART NO 199019(i) PART NO 199020 reg DIAPHRAGM RUBBER SLEEVE
PART NO159295 PART NO 159282reg O-RING O-RING0
PART NO 160581reg O-RING
o PART NO PART NO
PART NO199011() 160611(8) 160582 WASHER VALVE O-RING O-RING
PISTON
cJ
DIAPHRAGM HOUSING
CYLINDER
VALVE HOUSIN6 ASSEMBLY
PUUPOUTLET
DRAIN PORT
I PHNO309-755-4553 O-RING CHART HCDUKEampSONINC I
1 I84Z08 SOFT SERVE DISPENSING HEADS I
o PART NO 1605620
PAR~159--1b
PART NO PART NO 1605841 59295()
I PHNO 309-755-4553 O-R ING CHART HCDUKEampSONINC I
- Cover
- Table of Contents
- Safety
- Uncrating amp Inspection13
- Explanation of Electrical Controls
- Operation of Machine
- General Information
- Maintenance amp Adjustment
- Parts Breakdowns
- Trouble-Shooting Charts
- O-ring Charts
-
MERCHANDISING ASSY
PART No 115108 115107
PART No
196107-01 196108-01 114610 114608 115132 199030
PART No 162105 162106 112978 158004 158021 158022 158078 158000 158056 158000A 158014 158014A 161000 158049
DESCRIPTION 2S Merchandiser-927-957-978CAB 24 Merchandiser-917CAB
DRIP TRAY
DESCRIPTION
24 Drip Tray-917CAB 26- Drip Tray-927-957-978CAB 24 Tray Insert-917CAD 26 Tray Insert-978CAB-927CAB 26 Tray Insert-957CAB Rubber Bumper (only)
DESCRIPTION Caster With Brake Caster Without Brake Leg-6 4 Cylinder Brush Mix Hose Brush 58 Dia w6 Ft Handle 14 Pump Brush Drain Tube Brush Petrol Gel (12 tube carton) Petrol Gel (6 tube carton) Pe1rol Gel (per tube) Stera Sheen (per case) Stera Sheen (per jar) Pocket Thermometer 1 Dial Z32 Overrun Scale
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SNAKE bull SLUSH
35
36
GEAR REDUCERS Order By Freezer Serial Number
Model 3 CB
153345 5-1 Ratio B side 153004 High Speed Cup ~ (2 ea required) 153005 High Speed Bearing (2 ea required) 153008 Slow Speed Cup (2 ea required) 153009 Slow Speed Bearing (2 ea required) 153052 Slow Speed Seal (2 ea required) 153054 High Speed Seal (2 ea required) 153313 Brass Gear 5-1 Ratio 153336 Slow Speed Shaft Only 5-1 Ratio 153316 Worm Gear On Shaft 5-1 Ratio 114873 Gasket Set
Model 4 CB
153342 10-1 Ratio A side 153343 10-1 Ratio B side
153014 High Speed Cup (2 ea required) 153015 High Speed Bearing (2 ea required) 153011 Slow Speed Cup (2 ea required) 153012 Slow Speed Bearing (2 ea required) 153051 Slow Speed Seal (2 ea required) 153053 High Speed Seal (2 ea required) 153349 Brass Gear 10-1 Ratio 153339 Slow Speed Shaft OnIy 10-1 Ratio 153347 Worm Gear on Shaft 10-1 Ratio 114874 Gasket Set
Winlwin Model
153341 Wintwin 10-1 Ratio A and B Side
153014 High Speed Cup (2 ea required) 153015 High Speed Bearing (2 ea required) 153011 Slow Speed Cup (2 ea required) 153012 Slow Speed Bearing (2 ea required) 153051 Slow Speed Seal (2 ea required) 153053 High Speed Seal (2 ea required) 153349 Brass Gear 153350 Slow Speed Shaft Only 153348 Worm Gear on Shaft 11 4874 Gasket Set
158055 Gear Reducer OU 51001
Drive Coupling (Order By Machine Serial Number)
Mfg by H C DUKE amp SON INC bull 2115 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
917 amp 927 Beater Shaft Assembly
957 Beater Shaft
Item Part No Description
1 196079 Bushing-Cylinder 2 114752 Beater-Assy Long (Shaft) 3 137334 Blade-Scraper Soft Serve 4- 160500 O-Ring (Shaft Seal) 5- 133098 Bushing (Washer-Shaft Seal) 6 160557 Seal-Beater Shaft
-Items 4-6 111875 Seal-Assy Shaft (Complete)
31
1 113438 2 196079 3 137334 4- 160500 5- 133098 6 160557
-Items 4-6 111875
Shaft-Assy Beater Bushing-Cylinder Blade-Scraper O-ring (Shaft Seal) Washer-Shaft Seal (Bushing) Seal-Beater Shaft (Cup)
Seal-Assy Shaft (Complete)
ao
DISPENSING HEAD
16
r
Q
--~
-----_
REF PART No DESCRIPTION Tl3o 6 119928- Door Assembly shy Complete (Items 7-14) 11637- 7 196688 Door shy Less Parts
a 134921 Spigot shy Less Extension 9 134922 Handle Extension shy Spigot
10 162624 Handle 11 159295 OmiddotRings shy Spigot (Lots of 5)12 159309 O-ring shy 4 - Door 13 196066 Air Relief Screw 14 160621 a-Ring shy Air Relief Screw (Lots of 5)15 136126 Rod - Spigot Switch shy 917 8 927 16 136798 HMdKnob
38
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illmols 61244
SUPERIOR QUAUlY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
Duke Soft Serve Freezer Models 917R and 927RN
5 -______
7
6
UPDATEDDispense Head Assembly
Item Part No
115130 1 116321 2 160583 3 115129 4 160562 5 136126 6 134921 SA 162624 68 134922 7 159295 8 160584 9 162625 9A 114341 10 196185 10A 137870 108 136713
116410
Includes items 1-4 6-8
Description
Head-Assy Dispense (Complete) Head-Assy wActualor O-ring (Head-4-inch) Bleeder-Assy (Air Relief Plug) O-ring (Bleeder-Assy) Rod-Spigot Switch Spigot-long Single Handle-Black Tapered Handle-Spigot (Stainless Steel) O-ring (Spigot) O-ring (Extension) Knob-Hand Stud-Assy Cylinder 1-15116 inch (not shown) Nouie-Slar Adapter (accessory) Adapter-Yogurt Nozzle (not shown) Extension-Spigot (accessory-cake not shown) Kit-Dispense Head Switch
( Use only original or authorized replacement parts with this freezer )
DISPENSING HEAD
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH uu
REF PART No 114765
1 196082 2 114313 3 137018 5 136618 6 162626 8 134499 9 162625
10 115129 11 136794 12 159309 13 159295 14 160562 15 136713 16 160584
DESCRIPTION Door Assy-Complete Door-Less Parts Spigot Assy-Side Spigot Only-Center Extension Only-Center Handle Stud-Handle Stop Hand Knob Air Re1ief-Assy Rod-Spigot Switch O-Ring-4-Door O-Ring-Spigot O-Ring-Air Relief Extension-Spigot a-Ring
39
40
PUMP MOTOR AND HOUSING ASSEMBLY SAFETY SWITCH ASSEMBLY
PRESSURE SWITCH ASSEMBLY ijreg~
I
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH IIIUaA
CAB DPR PUMP BREAKDOWN
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 196091 Pump Base 46 114009 Pump Cover 2 136088 Pump Support 47 113464 Base Bracket Assembly 3 150784 Strain Relief Bushing 48 135725 Stud 1-78 4 Power Cord 49 160131 516 Flatwasher 5 160075 10-24 x 38 Screw 50 160293 Speed Clip 6 135416 Cover Electric Box 51 135724 Button 7 160141 14 Lockwasher 52 160140 10 Lockwasher 8 160491 14-20 x 34 Socket Screw 53 135726 Stud 3 9 113497 Motor Cord 18-3 SJT 54 160109 10-24 Hex Nut 10 151127 Motor 40 RPM Soft Serve 55 135729 Switch Actuator 11 160023 14-20 x 1 Screw 56 135731 Stop - Max Pressure 12 153317 Half Moon Key 57 162315 Spring - Soft Serve 13 112925 Cam Drive Plate Assembly 58 160138 10 Flat Washer 14 160495 14-20 x 14 Set Screw 59 160304 10-24 Stop Nut 15 160369 Pin 60 150456 Pressure Switch 16 134614 Swing Clamp 61 135744 Insulator - Fiber 17 134521 Adjusting Clamp 62 160381 6-32 x 1 Socket Screw 18 160488 Thumb Screw 63 160393 6 Flatwasher 19 134604 Bearing Bushing 64 160146 6 Lockwasher 20 134602 Connecting Rod 65 160309 6-32 Hex Nut 21 134601 Piston 66 160006 6-32 x 14 Screw 22 159295 O-Ring 67 160001 8-32 x 38 Screw 23 134603 Wrist Pin 68 160470 8 Lockwasher 24 136089 Cylinder 69 150481 Circuit Breaker 25 199011 Washer Valve 70 135727 Switch Bracket 26 159282 O-Ring 71 136311 Spacer - Cover Switch 27 113839 Pump Valve Housing 72 160028 Truss Head Screw
Assembly (Metal) 14-20 x 34 SST 28 160582 O-Ring 73 160141 Lockwasher 14 29 199020 Sleeve Rubber 74 160104 Hex Nut 14-20 30 135793 Retainer Clip 75 136312 Button Guard 31 135791 Adapter Hose Outlet 76 160020 Hex Hd Cap Screw 32 160581 O-Ring 14-20 x 1 SST 33 135790 Piston 77 113869 Switch Bracket 34 162308 Spring Soft Serve 78 136110 Button Cover Switch 35 135792 Drain Port 79 162314 Spring 36 160611 O-Ring 80 150456 Switch Pump Safety 37 135896 Hose 24 81 135004 Switch Cover 38 160738 Hose Clamp 82 160296 Screw RH 39 136288 Keeper 6-32 x 1-14 40 160554 O-Ring 83 160146 Lockwasher 6 41 160368 Wing Nut Int Tooth 42 130054 Diaphragm Housing 84 160393 Flatwasher 6 43 199019 Diaphragm 85 160309 Hex Nut 6-32 44 196074 Air Tube-Curved 86 114572 Hose Clamp 45 163433 Air Meter - 20 87 160048 14-20 x 12 TRHM
(other sizes available) 88 160308 6-32 x 516 RDHM 89 114581 Circuit Breaker Bracket
Not Shown 90 163109 Stop Pivot 112791 DPR Pressure Gauge
41
Mfg by H C DUKE amp SON INC 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
42
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Unit does not operate 1 Fuse blown at main disconshy 1 Check fuse size check for low nect voltage if not within 10 of
nameplate rating install transformer or call power company
2 Beater motor out on overload 2 Press starter reset button and check for low voltage Check producllemperalure and overrun
3 Disconnected or broken wife 3 Check wiring and wire connecshyin electrical circuit lions repair or replace lead
wires as necessary
4 Faulty selector switch 4 Replace selector switch
5 Out on high pressure 5 Check for low waler supply or dirty air conden ser
6 Out on low pressure 6 Check limit control and freon charge
Compressor does not operate f Troubte in compressor con- I Refer to Trouble-Shootingshyor operates improperly densing circuit Compressor I Condensing
Circuit
2 Faulty capacitor assembly 2 Replace capaCitor assembly (Single phase only)
3 Faulty contactor 3 Replace contaclOr or pOints
Compressor operates but 1 Loose con neclion at motor 1 Tighten connection beater motor does not starter coil (electrical box)
2 Open starter coil 2 Replace coil
3 Faulty capacitor assembly 3 Replace capaCitor assembly (Single phase only)
Dispensed product too hard 1 Cylinder themostat erratic 1 Adjust thermo slat or replace or set too low
2 Faulty time delay relay 2 Replace time delay relay
3 Solenoid valve leaking 3 Replace solenoid valve
4 Low suction pressure 4 See chart on page 15 for adshyjustments
Leaking of mix from rear housshy 1 Damaged bealer shalt seal 1 Replace shaft seal or O-ring ing discharge tube to drip tray inside seal assy
Mig by H C DUKE amp SON INC bull 2116 Eighlh Avenue Easl Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Mix leaking at dispensing head 1 Faulty 4 O-Ring
2 Head not properly installed
1 Replace 4 O-Ring
2 Install head properly
Mix sours in cabinet 1 Cabinet thermostat setting too high
2 Cabinet thermostat detective
3 Cabinet solenoid valve deshyfective
4 Cabinet switch defective
5 Beater motor out on overshyload (cab side)
1 Adjust thermostat
2 Replace thermostat
3 Replace coil or solenoid
4 Replace cabinet switch
S Reset overload for beater motor See pg 42 unit does not operate
Cabinet too COld
Machine runs continually and Product continues to get colder
Compressor operates only when dispensing
Unit runs conMuously Product does nol reach 180 F temperature
6 Door sWitch defectIVe
1 Cabinet thermostat setting too low
2 Defective thermostat
3 Cabinet solenoid stuck open
4 Cabinet expansion valve set too low
1 Plunger switch out of adjustshyment
2 Su ction pressure too low
3 Defective plunger switch
4 Plunger switch rod engaged
5 Faulty time delay relay
6 Starter or relay contacts stuck
7 Faulty thermostat or bulb not deep enough in well
6 Replace door SWitch
1 Adjust thermostat
2 Replace thermostat
3 Replace solenoid
4 Adjust cabinet expansion valve (See pg 15)
1 Adjust plunger switch
2 Adjust expansion valve and check freon charge
3 Replace plunger switch
4 Close plunger completely
5 Replace time delay relay
I 6 Check contacts i
7 Check bulb location or replace thermostat
1 Cylinder themostat setting 1 Adjust thermostat or replace too high or thermostat deshyfective
1 Trouble in compressor I condensing system
2 ExpanSion valve setiing is too high
3 Low on refrigeranl
1 See Trouble-Shooling-CompressorI Condensing circuit
2 Adjust expansion valve
3 Check and repair leak and recharge
1
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE SLUSHbull
43
44
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Dispensed product too soft (Product temperature above 21 0 F)
1 Automatic expansion yalve incorrectly set or erratic in operation
-2 Leak in refrigeration system
resulting in little or no refrigeration
1 Adjust or replace expanSion valve
2 Pump down system or remove refrigerant charge repair leak evacuate and recharge
3 Excessive oil in system 3 Drain compressor to proper oil leyel pump down and flush system
4 Thermostat set too high taulty
or 4 Adiust thermostat or replace
Product dispenses slOWly out dispensing head
1 Reverse rotation 1 Change rotation to clockshywise from front of freezer
2 Dispensing speed adjustshyment boll too far down
2 Adjust bolt upward
3 Pum p problem 3 See pump Trouble-Shooting chart
4 Product too cold 4 See dispensed product too hard pg42
TROUBLE-SHOOTING CHART COMPRESSORICONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor will not start -hums intermittently (cycling on oyerload)
1 Improperly wired
2 Low line Yoltage
3 Open starting capacitor (single phase only)
4 High discharge pressure
1 Check wiring against diagram
2 Ask power company to increase YOltage to not less than 10 below nameplate rating or install transformer Check for inadequate wire size
3 Replace starting capacitor
4 CheCK water regulating valve setting Check water or air condenser and clean if necessary Make sure disshycharge shut-oft valve is open
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor starts but remains 1 Low line voltage 1 Ask power company to in start windings increase voltage to not less (Single phase only) than 10 below nameplate
rating or install transrormer
2 Improperly wired 2 Check wiring against drawing Check wire size
3 Running capacitor shorted 3 Check by disconnecting running capacitor
4 Starting capacitor weak 4 Check capacitor replace
5 High disCharge pressure 5 Check water regulating valve check water or air condenser and clean il necessary Check discharge shut-off valve
Starter burned out 1 Low line voltage 1 Ask power company to inshycrease voltage to not less than 10 below nameplate rating or install transformer
2 Excessive line voltage 2 Ask power company to reduce voltage to maximum of 10 over nameplate rating
Starting capacitors burn out 1 Voltage 100 low 1 Ask power company to (Single phase only) increase voltage to not less
than 10 below nameplate rating or install translonmer
2 Improper capacitor 2 Replace capacitor with properly rated capacitor as listed in manual
Running capacitors burn out 1 Excessive line voltage 1 Ask power company to reshy(Single phase only) duce line voltage to not more
than 10 above rating 01 motor
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
45
46
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Unit operates long or continuously
1 Shortage of gas
2 Dirty condenser
3 Moisture in system
4 Compressor failing
1 Repair leak and recharge
2 Clean condenser
3 Evacuate and recharge system
4 Check compressor lor proper pressures If inadequate replace compressor
Head pressure too high 1 Refrigerant overcharge
2 Air in system
3 Dirty condenser (air cooled)
4 Unit location too warm (air cooled)
5 Restricted water cooled condenser
6 Water turned off or defective
1 Purge system
2 Purge system evacuate and recharge
3 Clean condenser
4 Relocate unIt away from restriction Place nothing against back or on top of unit
5 Clean or replace condenser
6 Turn on water Or replace water regulating valve regulating valve
Head pressure too low 1 Shortage 01 refrigerant 1 Repair leak and recharge
2 Water regulating valve open 2 Adjust regulating valve too wide
Water 1I0wing through water 1 Water regulating valve 1 Replace water regulating valve waste line when unit is not in operation
defective
Noisy compressor 1 Tubing raUle 1 Bend tubes away from contact
NOTE Refer to warranty card prior to compressor replacement
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING DPR PUMP
TROUBLE PROBABLE CAUSE REMEDY
Pump will not run 1 Pump cover removed 1 Install pump cover
2 Pressure switch actuating 2 Free bulton-check spring and
bulton stuck open (in) pressure switch alignment
3 Pressure switch burned out 3 Replace pressure switch
4 Starting switch in motor bad 4 Install new starting switch
5 Motor burned out 5 Replace motor
6 Circuit breaker kicked out 6 Allow to re- set Replace it or faulty circuit breaker will not
automatically re-set
Motor runs-cam drive plate 1 Loose cam drive plate 1 Tighten set screw in cam will not turn drive plate Check woodruff key
2 Gear stripped 2 Replace gear
Pump will not shut off Mix 1 Pressure swilch actuating 1 Free button-check pressure shoots out pressure relief bulton stuck closed (out) switch alignment
2 Pressure switch stuck in 2 Replace pressure switch closed position
3 Pressure switch assy out 3 Using pressure gauge adjust of adjustment pressure
4 Dirty or plugged diaphragm 4 Disassemble and clean housing (Ref 42) housing
5 Defective O-Ring on 5 Replace O-Ring pressure relief piston
Pump will not prime 1 Insufficient supply of mix 1 Replenish mix supply
2 Piston O-ring defective-no 2 Replace piston O-Ring and suction lubricate
3 Washer valve not sealing 3 Replace washer valve DO NOT LUBRICATE
Pump primes No pressure in 1 Sleeve (Rei 29) not sealing 1 Replace sleeve DO NOT cylinder properly LUBRICATE
2 Loose hose connection on 2 Install or tighten hose clamp pump valve housing (Ref 27)
Mix shoots out Of air intake line 1 Washer valve (Ref 25) 1 Replace washer valve-DO not sealing properly NOT LUBRICATE
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOfT SERVE bull SHAKE bull SLUSH
47
48
TROUBLE-SHOOTING DPR PUMP
Too much air overrun too high-popping problems
Product dispenses slowly out of disPenSing head
1 Air meter too large (Ref 45)
2 Air leak befween mix conshytainer and mix inlet
3 Air line hose crackedshysucking air (Ref 44)
4 Pump pressure too lowshycylinder not full
1 Pump pressure too low
2 PrOduct too cold
3 Low overrun
Diaphragm housing leaking mix 1 Diaphragm housing loose
2 Diaphragm defective
Piston drive assy noisy 1 Bushing bearing worn
2 Defective gear in gear motor
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SIfAKE bull SLUSH
REMEDY
1 Replace washer valve-DO NOT LUBRICATE
2 Install clamp on hose
1 Replace O-Ring and LUBRIshyCATE
1 Clean or replace air meter
2 Replace tube
1 Install smaller air meier
2 Repair as needed
3 Replace air line hose
4 Using pressure gauge adjust pressure switch
1 Using pressure gauge adjust pump pressure
2 Check product temperatureshyshould be about 18 F
3 Check meter-if plugged-clean
1 Tighten wing nuls (Ref 41)
2 Replace diaphragm (Ref 43)
1 Replace bushing bearing (Ref 19)
2 Replace gear
TROUBLE
Mix inlet hose loses prime
Mix on top of piston
PROBABLE CAUSE
1 Washer valve (Ref 25) not sealing properly
2 Mix inlet hose loose
1 Piston O-Ring leaking (Ref 22)
No Air (Overrun) 11 Ai r meter plugged (Ref I 45)
2 Curved air tube pinched
--
DPR PUMP aI
PART NO 199019(i) PART NO 199020 reg DIAPHRAGM RUBBER SLEEVE
PART NO159295 PART NO 159282reg O-RING O-RING0
PART NO 160581reg O-RING
o PART NO PART NO
PART NO199011() 160611(8) 160582 WASHER VALVE O-RING O-RING
PISTON
cJ
DIAPHRAGM HOUSING
CYLINDER
VALVE HOUSIN6 ASSEMBLY
PUUPOUTLET
DRAIN PORT
I PHNO309-755-4553 O-RING CHART HCDUKEampSONINC I
1 I84Z08 SOFT SERVE DISPENSING HEADS I
o PART NO 1605620
PAR~159--1b
PART NO PART NO 1605841 59295()
I PHNO 309-755-4553 O-R ING CHART HCDUKEampSONINC I
- Cover
- Table of Contents
- Safety
- Uncrating amp Inspection13
- Explanation of Electrical Controls
- Operation of Machine
- General Information
- Maintenance amp Adjustment
- Parts Breakdowns
- Trouble-Shooting Charts
- O-ring Charts
-
36
GEAR REDUCERS Order By Freezer Serial Number
Model 3 CB
153345 5-1 Ratio B side 153004 High Speed Cup ~ (2 ea required) 153005 High Speed Bearing (2 ea required) 153008 Slow Speed Cup (2 ea required) 153009 Slow Speed Bearing (2 ea required) 153052 Slow Speed Seal (2 ea required) 153054 High Speed Seal (2 ea required) 153313 Brass Gear 5-1 Ratio 153336 Slow Speed Shaft Only 5-1 Ratio 153316 Worm Gear On Shaft 5-1 Ratio 114873 Gasket Set
Model 4 CB
153342 10-1 Ratio A side 153343 10-1 Ratio B side
153014 High Speed Cup (2 ea required) 153015 High Speed Bearing (2 ea required) 153011 Slow Speed Cup (2 ea required) 153012 Slow Speed Bearing (2 ea required) 153051 Slow Speed Seal (2 ea required) 153053 High Speed Seal (2 ea required) 153349 Brass Gear 10-1 Ratio 153339 Slow Speed Shaft OnIy 10-1 Ratio 153347 Worm Gear on Shaft 10-1 Ratio 114874 Gasket Set
Winlwin Model
153341 Wintwin 10-1 Ratio A and B Side
153014 High Speed Cup (2 ea required) 153015 High Speed Bearing (2 ea required) 153011 Slow Speed Cup (2 ea required) 153012 Slow Speed Bearing (2 ea required) 153051 Slow Speed Seal (2 ea required) 153053 High Speed Seal (2 ea required) 153349 Brass Gear 153350 Slow Speed Shaft Only 153348 Worm Gear on Shaft 11 4874 Gasket Set
158055 Gear Reducer OU 51001
Drive Coupling (Order By Machine Serial Number)
Mfg by H C DUKE amp SON INC bull 2115 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
917 amp 927 Beater Shaft Assembly
957 Beater Shaft
Item Part No Description
1 196079 Bushing-Cylinder 2 114752 Beater-Assy Long (Shaft) 3 137334 Blade-Scraper Soft Serve 4- 160500 O-Ring (Shaft Seal) 5- 133098 Bushing (Washer-Shaft Seal) 6 160557 Seal-Beater Shaft
-Items 4-6 111875 Seal-Assy Shaft (Complete)
31
1 113438 2 196079 3 137334 4- 160500 5- 133098 6 160557
-Items 4-6 111875
Shaft-Assy Beater Bushing-Cylinder Blade-Scraper O-ring (Shaft Seal) Washer-Shaft Seal (Bushing) Seal-Beater Shaft (Cup)
Seal-Assy Shaft (Complete)
ao
DISPENSING HEAD
16
r
Q
--~
-----_
REF PART No DESCRIPTION Tl3o 6 119928- Door Assembly shy Complete (Items 7-14) 11637- 7 196688 Door shy Less Parts
a 134921 Spigot shy Less Extension 9 134922 Handle Extension shy Spigot
10 162624 Handle 11 159295 OmiddotRings shy Spigot (Lots of 5)12 159309 O-ring shy 4 - Door 13 196066 Air Relief Screw 14 160621 a-Ring shy Air Relief Screw (Lots of 5)15 136126 Rod - Spigot Switch shy 917 8 927 16 136798 HMdKnob
38
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illmols 61244
SUPERIOR QUAUlY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
Duke Soft Serve Freezer Models 917R and 927RN
5 -______
7
6
UPDATEDDispense Head Assembly
Item Part No
115130 1 116321 2 160583 3 115129 4 160562 5 136126 6 134921 SA 162624 68 134922 7 159295 8 160584 9 162625 9A 114341 10 196185 10A 137870 108 136713
116410
Includes items 1-4 6-8
Description
Head-Assy Dispense (Complete) Head-Assy wActualor O-ring (Head-4-inch) Bleeder-Assy (Air Relief Plug) O-ring (Bleeder-Assy) Rod-Spigot Switch Spigot-long Single Handle-Black Tapered Handle-Spigot (Stainless Steel) O-ring (Spigot) O-ring (Extension) Knob-Hand Stud-Assy Cylinder 1-15116 inch (not shown) Nouie-Slar Adapter (accessory) Adapter-Yogurt Nozzle (not shown) Extension-Spigot (accessory-cake not shown) Kit-Dispense Head Switch
( Use only original or authorized replacement parts with this freezer )
DISPENSING HEAD
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH uu
REF PART No 114765
1 196082 2 114313 3 137018 5 136618 6 162626 8 134499 9 162625
10 115129 11 136794 12 159309 13 159295 14 160562 15 136713 16 160584
DESCRIPTION Door Assy-Complete Door-Less Parts Spigot Assy-Side Spigot Only-Center Extension Only-Center Handle Stud-Handle Stop Hand Knob Air Re1ief-Assy Rod-Spigot Switch O-Ring-4-Door O-Ring-Spigot O-Ring-Air Relief Extension-Spigot a-Ring
39
40
PUMP MOTOR AND HOUSING ASSEMBLY SAFETY SWITCH ASSEMBLY
PRESSURE SWITCH ASSEMBLY ijreg~
I
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH IIIUaA
CAB DPR PUMP BREAKDOWN
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 196091 Pump Base 46 114009 Pump Cover 2 136088 Pump Support 47 113464 Base Bracket Assembly 3 150784 Strain Relief Bushing 48 135725 Stud 1-78 4 Power Cord 49 160131 516 Flatwasher 5 160075 10-24 x 38 Screw 50 160293 Speed Clip 6 135416 Cover Electric Box 51 135724 Button 7 160141 14 Lockwasher 52 160140 10 Lockwasher 8 160491 14-20 x 34 Socket Screw 53 135726 Stud 3 9 113497 Motor Cord 18-3 SJT 54 160109 10-24 Hex Nut 10 151127 Motor 40 RPM Soft Serve 55 135729 Switch Actuator 11 160023 14-20 x 1 Screw 56 135731 Stop - Max Pressure 12 153317 Half Moon Key 57 162315 Spring - Soft Serve 13 112925 Cam Drive Plate Assembly 58 160138 10 Flat Washer 14 160495 14-20 x 14 Set Screw 59 160304 10-24 Stop Nut 15 160369 Pin 60 150456 Pressure Switch 16 134614 Swing Clamp 61 135744 Insulator - Fiber 17 134521 Adjusting Clamp 62 160381 6-32 x 1 Socket Screw 18 160488 Thumb Screw 63 160393 6 Flatwasher 19 134604 Bearing Bushing 64 160146 6 Lockwasher 20 134602 Connecting Rod 65 160309 6-32 Hex Nut 21 134601 Piston 66 160006 6-32 x 14 Screw 22 159295 O-Ring 67 160001 8-32 x 38 Screw 23 134603 Wrist Pin 68 160470 8 Lockwasher 24 136089 Cylinder 69 150481 Circuit Breaker 25 199011 Washer Valve 70 135727 Switch Bracket 26 159282 O-Ring 71 136311 Spacer - Cover Switch 27 113839 Pump Valve Housing 72 160028 Truss Head Screw
Assembly (Metal) 14-20 x 34 SST 28 160582 O-Ring 73 160141 Lockwasher 14 29 199020 Sleeve Rubber 74 160104 Hex Nut 14-20 30 135793 Retainer Clip 75 136312 Button Guard 31 135791 Adapter Hose Outlet 76 160020 Hex Hd Cap Screw 32 160581 O-Ring 14-20 x 1 SST 33 135790 Piston 77 113869 Switch Bracket 34 162308 Spring Soft Serve 78 136110 Button Cover Switch 35 135792 Drain Port 79 162314 Spring 36 160611 O-Ring 80 150456 Switch Pump Safety 37 135896 Hose 24 81 135004 Switch Cover 38 160738 Hose Clamp 82 160296 Screw RH 39 136288 Keeper 6-32 x 1-14 40 160554 O-Ring 83 160146 Lockwasher 6 41 160368 Wing Nut Int Tooth 42 130054 Diaphragm Housing 84 160393 Flatwasher 6 43 199019 Diaphragm 85 160309 Hex Nut 6-32 44 196074 Air Tube-Curved 86 114572 Hose Clamp 45 163433 Air Meter - 20 87 160048 14-20 x 12 TRHM
(other sizes available) 88 160308 6-32 x 516 RDHM 89 114581 Circuit Breaker Bracket
Not Shown 90 163109 Stop Pivot 112791 DPR Pressure Gauge
41
Mfg by H C DUKE amp SON INC 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
42
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Unit does not operate 1 Fuse blown at main disconshy 1 Check fuse size check for low nect voltage if not within 10 of
nameplate rating install transformer or call power company
2 Beater motor out on overload 2 Press starter reset button and check for low voltage Check producllemperalure and overrun
3 Disconnected or broken wife 3 Check wiring and wire connecshyin electrical circuit lions repair or replace lead
wires as necessary
4 Faulty selector switch 4 Replace selector switch
5 Out on high pressure 5 Check for low waler supply or dirty air conden ser
6 Out on low pressure 6 Check limit control and freon charge
Compressor does not operate f Troubte in compressor con- I Refer to Trouble-Shootingshyor operates improperly densing circuit Compressor I Condensing
Circuit
2 Faulty capacitor assembly 2 Replace capaCitor assembly (Single phase only)
3 Faulty contactor 3 Replace contaclOr or pOints
Compressor operates but 1 Loose con neclion at motor 1 Tighten connection beater motor does not starter coil (electrical box)
2 Open starter coil 2 Replace coil
3 Faulty capacitor assembly 3 Replace capaCitor assembly (Single phase only)
Dispensed product too hard 1 Cylinder themostat erratic 1 Adjust thermo slat or replace or set too low
2 Faulty time delay relay 2 Replace time delay relay
3 Solenoid valve leaking 3 Replace solenoid valve
4 Low suction pressure 4 See chart on page 15 for adshyjustments
Leaking of mix from rear housshy 1 Damaged bealer shalt seal 1 Replace shaft seal or O-ring ing discharge tube to drip tray inside seal assy
Mig by H C DUKE amp SON INC bull 2116 Eighlh Avenue Easl Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Mix leaking at dispensing head 1 Faulty 4 O-Ring
2 Head not properly installed
1 Replace 4 O-Ring
2 Install head properly
Mix sours in cabinet 1 Cabinet thermostat setting too high
2 Cabinet thermostat detective
3 Cabinet solenoid valve deshyfective
4 Cabinet switch defective
5 Beater motor out on overshyload (cab side)
1 Adjust thermostat
2 Replace thermostat
3 Replace coil or solenoid
4 Replace cabinet switch
S Reset overload for beater motor See pg 42 unit does not operate
Cabinet too COld
Machine runs continually and Product continues to get colder
Compressor operates only when dispensing
Unit runs conMuously Product does nol reach 180 F temperature
6 Door sWitch defectIVe
1 Cabinet thermostat setting too low
2 Defective thermostat
3 Cabinet solenoid stuck open
4 Cabinet expansion valve set too low
1 Plunger switch out of adjustshyment
2 Su ction pressure too low
3 Defective plunger switch
4 Plunger switch rod engaged
5 Faulty time delay relay
6 Starter or relay contacts stuck
7 Faulty thermostat or bulb not deep enough in well
6 Replace door SWitch
1 Adjust thermostat
2 Replace thermostat
3 Replace solenoid
4 Adjust cabinet expansion valve (See pg 15)
1 Adjust plunger switch
2 Adjust expansion valve and check freon charge
3 Replace plunger switch
4 Close plunger completely
5 Replace time delay relay
I 6 Check contacts i
7 Check bulb location or replace thermostat
1 Cylinder themostat setting 1 Adjust thermostat or replace too high or thermostat deshyfective
1 Trouble in compressor I condensing system
2 ExpanSion valve setiing is too high
3 Low on refrigeranl
1 See Trouble-Shooling-CompressorI Condensing circuit
2 Adjust expansion valve
3 Check and repair leak and recharge
1
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE SLUSHbull
43
44
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Dispensed product too soft (Product temperature above 21 0 F)
1 Automatic expansion yalve incorrectly set or erratic in operation
-2 Leak in refrigeration system
resulting in little or no refrigeration
1 Adjust or replace expanSion valve
2 Pump down system or remove refrigerant charge repair leak evacuate and recharge
3 Excessive oil in system 3 Drain compressor to proper oil leyel pump down and flush system
4 Thermostat set too high taulty
or 4 Adiust thermostat or replace
Product dispenses slOWly out dispensing head
1 Reverse rotation 1 Change rotation to clockshywise from front of freezer
2 Dispensing speed adjustshyment boll too far down
2 Adjust bolt upward
3 Pum p problem 3 See pump Trouble-Shooting chart
4 Product too cold 4 See dispensed product too hard pg42
TROUBLE-SHOOTING CHART COMPRESSORICONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor will not start -hums intermittently (cycling on oyerload)
1 Improperly wired
2 Low line Yoltage
3 Open starting capacitor (single phase only)
4 High discharge pressure
1 Check wiring against diagram
2 Ask power company to increase YOltage to not less than 10 below nameplate rating or install transformer Check for inadequate wire size
3 Replace starting capacitor
4 CheCK water regulating valve setting Check water or air condenser and clean if necessary Make sure disshycharge shut-oft valve is open
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor starts but remains 1 Low line voltage 1 Ask power company to in start windings increase voltage to not less (Single phase only) than 10 below nameplate
rating or install transrormer
2 Improperly wired 2 Check wiring against drawing Check wire size
3 Running capacitor shorted 3 Check by disconnecting running capacitor
4 Starting capacitor weak 4 Check capacitor replace
5 High disCharge pressure 5 Check water regulating valve check water or air condenser and clean il necessary Check discharge shut-off valve
Starter burned out 1 Low line voltage 1 Ask power company to inshycrease voltage to not less than 10 below nameplate rating or install transformer
2 Excessive line voltage 2 Ask power company to reduce voltage to maximum of 10 over nameplate rating
Starting capacitors burn out 1 Voltage 100 low 1 Ask power company to (Single phase only) increase voltage to not less
than 10 below nameplate rating or install translonmer
2 Improper capacitor 2 Replace capacitor with properly rated capacitor as listed in manual
Running capacitors burn out 1 Excessive line voltage 1 Ask power company to reshy(Single phase only) duce line voltage to not more
than 10 above rating 01 motor
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
45
46
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Unit operates long or continuously
1 Shortage of gas
2 Dirty condenser
3 Moisture in system
4 Compressor failing
1 Repair leak and recharge
2 Clean condenser
3 Evacuate and recharge system
4 Check compressor lor proper pressures If inadequate replace compressor
Head pressure too high 1 Refrigerant overcharge
2 Air in system
3 Dirty condenser (air cooled)
4 Unit location too warm (air cooled)
5 Restricted water cooled condenser
6 Water turned off or defective
1 Purge system
2 Purge system evacuate and recharge
3 Clean condenser
4 Relocate unIt away from restriction Place nothing against back or on top of unit
5 Clean or replace condenser
6 Turn on water Or replace water regulating valve regulating valve
Head pressure too low 1 Shortage 01 refrigerant 1 Repair leak and recharge
2 Water regulating valve open 2 Adjust regulating valve too wide
Water 1I0wing through water 1 Water regulating valve 1 Replace water regulating valve waste line when unit is not in operation
defective
Noisy compressor 1 Tubing raUle 1 Bend tubes away from contact
NOTE Refer to warranty card prior to compressor replacement
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING DPR PUMP
TROUBLE PROBABLE CAUSE REMEDY
Pump will not run 1 Pump cover removed 1 Install pump cover
2 Pressure switch actuating 2 Free bulton-check spring and
bulton stuck open (in) pressure switch alignment
3 Pressure switch burned out 3 Replace pressure switch
4 Starting switch in motor bad 4 Install new starting switch
5 Motor burned out 5 Replace motor
6 Circuit breaker kicked out 6 Allow to re- set Replace it or faulty circuit breaker will not
automatically re-set
Motor runs-cam drive plate 1 Loose cam drive plate 1 Tighten set screw in cam will not turn drive plate Check woodruff key
2 Gear stripped 2 Replace gear
Pump will not shut off Mix 1 Pressure swilch actuating 1 Free button-check pressure shoots out pressure relief bulton stuck closed (out) switch alignment
2 Pressure switch stuck in 2 Replace pressure switch closed position
3 Pressure switch assy out 3 Using pressure gauge adjust of adjustment pressure
4 Dirty or plugged diaphragm 4 Disassemble and clean housing (Ref 42) housing
5 Defective O-Ring on 5 Replace O-Ring pressure relief piston
Pump will not prime 1 Insufficient supply of mix 1 Replenish mix supply
2 Piston O-ring defective-no 2 Replace piston O-Ring and suction lubricate
3 Washer valve not sealing 3 Replace washer valve DO NOT LUBRICATE
Pump primes No pressure in 1 Sleeve (Rei 29) not sealing 1 Replace sleeve DO NOT cylinder properly LUBRICATE
2 Loose hose connection on 2 Install or tighten hose clamp pump valve housing (Ref 27)
Mix shoots out Of air intake line 1 Washer valve (Ref 25) 1 Replace washer valve-DO not sealing properly NOT LUBRICATE
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOfT SERVE bull SHAKE bull SLUSH
47
48
TROUBLE-SHOOTING DPR PUMP
Too much air overrun too high-popping problems
Product dispenses slowly out of disPenSing head
1 Air meter too large (Ref 45)
2 Air leak befween mix conshytainer and mix inlet
3 Air line hose crackedshysucking air (Ref 44)
4 Pump pressure too lowshycylinder not full
1 Pump pressure too low
2 PrOduct too cold
3 Low overrun
Diaphragm housing leaking mix 1 Diaphragm housing loose
2 Diaphragm defective
Piston drive assy noisy 1 Bushing bearing worn
2 Defective gear in gear motor
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SIfAKE bull SLUSH
REMEDY
1 Replace washer valve-DO NOT LUBRICATE
2 Install clamp on hose
1 Replace O-Ring and LUBRIshyCATE
1 Clean or replace air meter
2 Replace tube
1 Install smaller air meier
2 Repair as needed
3 Replace air line hose
4 Using pressure gauge adjust pressure switch
1 Using pressure gauge adjust pump pressure
2 Check product temperatureshyshould be about 18 F
3 Check meter-if plugged-clean
1 Tighten wing nuls (Ref 41)
2 Replace diaphragm (Ref 43)
1 Replace bushing bearing (Ref 19)
2 Replace gear
TROUBLE
Mix inlet hose loses prime
Mix on top of piston
PROBABLE CAUSE
1 Washer valve (Ref 25) not sealing properly
2 Mix inlet hose loose
1 Piston O-Ring leaking (Ref 22)
No Air (Overrun) 11 Ai r meter plugged (Ref I 45)
2 Curved air tube pinched
--
DPR PUMP aI
PART NO 199019(i) PART NO 199020 reg DIAPHRAGM RUBBER SLEEVE
PART NO159295 PART NO 159282reg O-RING O-RING0
PART NO 160581reg O-RING
o PART NO PART NO
PART NO199011() 160611(8) 160582 WASHER VALVE O-RING O-RING
PISTON
cJ
DIAPHRAGM HOUSING
CYLINDER
VALVE HOUSIN6 ASSEMBLY
PUUPOUTLET
DRAIN PORT
I PHNO309-755-4553 O-RING CHART HCDUKEampSONINC I
1 I84Z08 SOFT SERVE DISPENSING HEADS I
o PART NO 1605620
PAR~159--1b
PART NO PART NO 1605841 59295()
I PHNO 309-755-4553 O-R ING CHART HCDUKEampSONINC I
- Cover
- Table of Contents
- Safety
- Uncrating amp Inspection13
- Explanation of Electrical Controls
- Operation of Machine
- General Information
- Maintenance amp Adjustment
- Parts Breakdowns
- Trouble-Shooting Charts
- O-ring Charts
-
917 amp 927 Beater Shaft Assembly
957 Beater Shaft
Item Part No Description
1 196079 Bushing-Cylinder 2 114752 Beater-Assy Long (Shaft) 3 137334 Blade-Scraper Soft Serve 4- 160500 O-Ring (Shaft Seal) 5- 133098 Bushing (Washer-Shaft Seal) 6 160557 Seal-Beater Shaft
-Items 4-6 111875 Seal-Assy Shaft (Complete)
31
1 113438 2 196079 3 137334 4- 160500 5- 133098 6 160557
-Items 4-6 111875
Shaft-Assy Beater Bushing-Cylinder Blade-Scraper O-ring (Shaft Seal) Washer-Shaft Seal (Bushing) Seal-Beater Shaft (Cup)
Seal-Assy Shaft (Complete)
ao
DISPENSING HEAD
16
r
Q
--~
-----_
REF PART No DESCRIPTION Tl3o 6 119928- Door Assembly shy Complete (Items 7-14) 11637- 7 196688 Door shy Less Parts
a 134921 Spigot shy Less Extension 9 134922 Handle Extension shy Spigot
10 162624 Handle 11 159295 OmiddotRings shy Spigot (Lots of 5)12 159309 O-ring shy 4 - Door 13 196066 Air Relief Screw 14 160621 a-Ring shy Air Relief Screw (Lots of 5)15 136126 Rod - Spigot Switch shy 917 8 927 16 136798 HMdKnob
38
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illmols 61244
SUPERIOR QUAUlY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
Duke Soft Serve Freezer Models 917R and 927RN
5 -______
7
6
UPDATEDDispense Head Assembly
Item Part No
115130 1 116321 2 160583 3 115129 4 160562 5 136126 6 134921 SA 162624 68 134922 7 159295 8 160584 9 162625 9A 114341 10 196185 10A 137870 108 136713
116410
Includes items 1-4 6-8
Description
Head-Assy Dispense (Complete) Head-Assy wActualor O-ring (Head-4-inch) Bleeder-Assy (Air Relief Plug) O-ring (Bleeder-Assy) Rod-Spigot Switch Spigot-long Single Handle-Black Tapered Handle-Spigot (Stainless Steel) O-ring (Spigot) O-ring (Extension) Knob-Hand Stud-Assy Cylinder 1-15116 inch (not shown) Nouie-Slar Adapter (accessory) Adapter-Yogurt Nozzle (not shown) Extension-Spigot (accessory-cake not shown) Kit-Dispense Head Switch
( Use only original or authorized replacement parts with this freezer )
DISPENSING HEAD
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH uu
REF PART No 114765
1 196082 2 114313 3 137018 5 136618 6 162626 8 134499 9 162625
10 115129 11 136794 12 159309 13 159295 14 160562 15 136713 16 160584
DESCRIPTION Door Assy-Complete Door-Less Parts Spigot Assy-Side Spigot Only-Center Extension Only-Center Handle Stud-Handle Stop Hand Knob Air Re1ief-Assy Rod-Spigot Switch O-Ring-4-Door O-Ring-Spigot O-Ring-Air Relief Extension-Spigot a-Ring
39
40
PUMP MOTOR AND HOUSING ASSEMBLY SAFETY SWITCH ASSEMBLY
PRESSURE SWITCH ASSEMBLY ijreg~
I
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH IIIUaA
CAB DPR PUMP BREAKDOWN
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 196091 Pump Base 46 114009 Pump Cover 2 136088 Pump Support 47 113464 Base Bracket Assembly 3 150784 Strain Relief Bushing 48 135725 Stud 1-78 4 Power Cord 49 160131 516 Flatwasher 5 160075 10-24 x 38 Screw 50 160293 Speed Clip 6 135416 Cover Electric Box 51 135724 Button 7 160141 14 Lockwasher 52 160140 10 Lockwasher 8 160491 14-20 x 34 Socket Screw 53 135726 Stud 3 9 113497 Motor Cord 18-3 SJT 54 160109 10-24 Hex Nut 10 151127 Motor 40 RPM Soft Serve 55 135729 Switch Actuator 11 160023 14-20 x 1 Screw 56 135731 Stop - Max Pressure 12 153317 Half Moon Key 57 162315 Spring - Soft Serve 13 112925 Cam Drive Plate Assembly 58 160138 10 Flat Washer 14 160495 14-20 x 14 Set Screw 59 160304 10-24 Stop Nut 15 160369 Pin 60 150456 Pressure Switch 16 134614 Swing Clamp 61 135744 Insulator - Fiber 17 134521 Adjusting Clamp 62 160381 6-32 x 1 Socket Screw 18 160488 Thumb Screw 63 160393 6 Flatwasher 19 134604 Bearing Bushing 64 160146 6 Lockwasher 20 134602 Connecting Rod 65 160309 6-32 Hex Nut 21 134601 Piston 66 160006 6-32 x 14 Screw 22 159295 O-Ring 67 160001 8-32 x 38 Screw 23 134603 Wrist Pin 68 160470 8 Lockwasher 24 136089 Cylinder 69 150481 Circuit Breaker 25 199011 Washer Valve 70 135727 Switch Bracket 26 159282 O-Ring 71 136311 Spacer - Cover Switch 27 113839 Pump Valve Housing 72 160028 Truss Head Screw
Assembly (Metal) 14-20 x 34 SST 28 160582 O-Ring 73 160141 Lockwasher 14 29 199020 Sleeve Rubber 74 160104 Hex Nut 14-20 30 135793 Retainer Clip 75 136312 Button Guard 31 135791 Adapter Hose Outlet 76 160020 Hex Hd Cap Screw 32 160581 O-Ring 14-20 x 1 SST 33 135790 Piston 77 113869 Switch Bracket 34 162308 Spring Soft Serve 78 136110 Button Cover Switch 35 135792 Drain Port 79 162314 Spring 36 160611 O-Ring 80 150456 Switch Pump Safety 37 135896 Hose 24 81 135004 Switch Cover 38 160738 Hose Clamp 82 160296 Screw RH 39 136288 Keeper 6-32 x 1-14 40 160554 O-Ring 83 160146 Lockwasher 6 41 160368 Wing Nut Int Tooth 42 130054 Diaphragm Housing 84 160393 Flatwasher 6 43 199019 Diaphragm 85 160309 Hex Nut 6-32 44 196074 Air Tube-Curved 86 114572 Hose Clamp 45 163433 Air Meter - 20 87 160048 14-20 x 12 TRHM
(other sizes available) 88 160308 6-32 x 516 RDHM 89 114581 Circuit Breaker Bracket
Not Shown 90 163109 Stop Pivot 112791 DPR Pressure Gauge
41
Mfg by H C DUKE amp SON INC 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
42
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Unit does not operate 1 Fuse blown at main disconshy 1 Check fuse size check for low nect voltage if not within 10 of
nameplate rating install transformer or call power company
2 Beater motor out on overload 2 Press starter reset button and check for low voltage Check producllemperalure and overrun
3 Disconnected or broken wife 3 Check wiring and wire connecshyin electrical circuit lions repair or replace lead
wires as necessary
4 Faulty selector switch 4 Replace selector switch
5 Out on high pressure 5 Check for low waler supply or dirty air conden ser
6 Out on low pressure 6 Check limit control and freon charge
Compressor does not operate f Troubte in compressor con- I Refer to Trouble-Shootingshyor operates improperly densing circuit Compressor I Condensing
Circuit
2 Faulty capacitor assembly 2 Replace capaCitor assembly (Single phase only)
3 Faulty contactor 3 Replace contaclOr or pOints
Compressor operates but 1 Loose con neclion at motor 1 Tighten connection beater motor does not starter coil (electrical box)
2 Open starter coil 2 Replace coil
3 Faulty capacitor assembly 3 Replace capaCitor assembly (Single phase only)
Dispensed product too hard 1 Cylinder themostat erratic 1 Adjust thermo slat or replace or set too low
2 Faulty time delay relay 2 Replace time delay relay
3 Solenoid valve leaking 3 Replace solenoid valve
4 Low suction pressure 4 See chart on page 15 for adshyjustments
Leaking of mix from rear housshy 1 Damaged bealer shalt seal 1 Replace shaft seal or O-ring ing discharge tube to drip tray inside seal assy
Mig by H C DUKE amp SON INC bull 2116 Eighlh Avenue Easl Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Mix leaking at dispensing head 1 Faulty 4 O-Ring
2 Head not properly installed
1 Replace 4 O-Ring
2 Install head properly
Mix sours in cabinet 1 Cabinet thermostat setting too high
2 Cabinet thermostat detective
3 Cabinet solenoid valve deshyfective
4 Cabinet switch defective
5 Beater motor out on overshyload (cab side)
1 Adjust thermostat
2 Replace thermostat
3 Replace coil or solenoid
4 Replace cabinet switch
S Reset overload for beater motor See pg 42 unit does not operate
Cabinet too COld
Machine runs continually and Product continues to get colder
Compressor operates only when dispensing
Unit runs conMuously Product does nol reach 180 F temperature
6 Door sWitch defectIVe
1 Cabinet thermostat setting too low
2 Defective thermostat
3 Cabinet solenoid stuck open
4 Cabinet expansion valve set too low
1 Plunger switch out of adjustshyment
2 Su ction pressure too low
3 Defective plunger switch
4 Plunger switch rod engaged
5 Faulty time delay relay
6 Starter or relay contacts stuck
7 Faulty thermostat or bulb not deep enough in well
6 Replace door SWitch
1 Adjust thermostat
2 Replace thermostat
3 Replace solenoid
4 Adjust cabinet expansion valve (See pg 15)
1 Adjust plunger switch
2 Adjust expansion valve and check freon charge
3 Replace plunger switch
4 Close plunger completely
5 Replace time delay relay
I 6 Check contacts i
7 Check bulb location or replace thermostat
1 Cylinder themostat setting 1 Adjust thermostat or replace too high or thermostat deshyfective
1 Trouble in compressor I condensing system
2 ExpanSion valve setiing is too high
3 Low on refrigeranl
1 See Trouble-Shooling-CompressorI Condensing circuit
2 Adjust expansion valve
3 Check and repair leak and recharge
1
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE SLUSHbull
43
44
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Dispensed product too soft (Product temperature above 21 0 F)
1 Automatic expansion yalve incorrectly set or erratic in operation
-2 Leak in refrigeration system
resulting in little or no refrigeration
1 Adjust or replace expanSion valve
2 Pump down system or remove refrigerant charge repair leak evacuate and recharge
3 Excessive oil in system 3 Drain compressor to proper oil leyel pump down and flush system
4 Thermostat set too high taulty
or 4 Adiust thermostat or replace
Product dispenses slOWly out dispensing head
1 Reverse rotation 1 Change rotation to clockshywise from front of freezer
2 Dispensing speed adjustshyment boll too far down
2 Adjust bolt upward
3 Pum p problem 3 See pump Trouble-Shooting chart
4 Product too cold 4 See dispensed product too hard pg42
TROUBLE-SHOOTING CHART COMPRESSORICONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor will not start -hums intermittently (cycling on oyerload)
1 Improperly wired
2 Low line Yoltage
3 Open starting capacitor (single phase only)
4 High discharge pressure
1 Check wiring against diagram
2 Ask power company to increase YOltage to not less than 10 below nameplate rating or install transformer Check for inadequate wire size
3 Replace starting capacitor
4 CheCK water regulating valve setting Check water or air condenser and clean if necessary Make sure disshycharge shut-oft valve is open
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor starts but remains 1 Low line voltage 1 Ask power company to in start windings increase voltage to not less (Single phase only) than 10 below nameplate
rating or install transrormer
2 Improperly wired 2 Check wiring against drawing Check wire size
3 Running capacitor shorted 3 Check by disconnecting running capacitor
4 Starting capacitor weak 4 Check capacitor replace
5 High disCharge pressure 5 Check water regulating valve check water or air condenser and clean il necessary Check discharge shut-off valve
Starter burned out 1 Low line voltage 1 Ask power company to inshycrease voltage to not less than 10 below nameplate rating or install transformer
2 Excessive line voltage 2 Ask power company to reduce voltage to maximum of 10 over nameplate rating
Starting capacitors burn out 1 Voltage 100 low 1 Ask power company to (Single phase only) increase voltage to not less
than 10 below nameplate rating or install translonmer
2 Improper capacitor 2 Replace capacitor with properly rated capacitor as listed in manual
Running capacitors burn out 1 Excessive line voltage 1 Ask power company to reshy(Single phase only) duce line voltage to not more
than 10 above rating 01 motor
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
45
46
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Unit operates long or continuously
1 Shortage of gas
2 Dirty condenser
3 Moisture in system
4 Compressor failing
1 Repair leak and recharge
2 Clean condenser
3 Evacuate and recharge system
4 Check compressor lor proper pressures If inadequate replace compressor
Head pressure too high 1 Refrigerant overcharge
2 Air in system
3 Dirty condenser (air cooled)
4 Unit location too warm (air cooled)
5 Restricted water cooled condenser
6 Water turned off or defective
1 Purge system
2 Purge system evacuate and recharge
3 Clean condenser
4 Relocate unIt away from restriction Place nothing against back or on top of unit
5 Clean or replace condenser
6 Turn on water Or replace water regulating valve regulating valve
Head pressure too low 1 Shortage 01 refrigerant 1 Repair leak and recharge
2 Water regulating valve open 2 Adjust regulating valve too wide
Water 1I0wing through water 1 Water regulating valve 1 Replace water regulating valve waste line when unit is not in operation
defective
Noisy compressor 1 Tubing raUle 1 Bend tubes away from contact
NOTE Refer to warranty card prior to compressor replacement
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING DPR PUMP
TROUBLE PROBABLE CAUSE REMEDY
Pump will not run 1 Pump cover removed 1 Install pump cover
2 Pressure switch actuating 2 Free bulton-check spring and
bulton stuck open (in) pressure switch alignment
3 Pressure switch burned out 3 Replace pressure switch
4 Starting switch in motor bad 4 Install new starting switch
5 Motor burned out 5 Replace motor
6 Circuit breaker kicked out 6 Allow to re- set Replace it or faulty circuit breaker will not
automatically re-set
Motor runs-cam drive plate 1 Loose cam drive plate 1 Tighten set screw in cam will not turn drive plate Check woodruff key
2 Gear stripped 2 Replace gear
Pump will not shut off Mix 1 Pressure swilch actuating 1 Free button-check pressure shoots out pressure relief bulton stuck closed (out) switch alignment
2 Pressure switch stuck in 2 Replace pressure switch closed position
3 Pressure switch assy out 3 Using pressure gauge adjust of adjustment pressure
4 Dirty or plugged diaphragm 4 Disassemble and clean housing (Ref 42) housing
5 Defective O-Ring on 5 Replace O-Ring pressure relief piston
Pump will not prime 1 Insufficient supply of mix 1 Replenish mix supply
2 Piston O-ring defective-no 2 Replace piston O-Ring and suction lubricate
3 Washer valve not sealing 3 Replace washer valve DO NOT LUBRICATE
Pump primes No pressure in 1 Sleeve (Rei 29) not sealing 1 Replace sleeve DO NOT cylinder properly LUBRICATE
2 Loose hose connection on 2 Install or tighten hose clamp pump valve housing (Ref 27)
Mix shoots out Of air intake line 1 Washer valve (Ref 25) 1 Replace washer valve-DO not sealing properly NOT LUBRICATE
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOfT SERVE bull SHAKE bull SLUSH
47
48
TROUBLE-SHOOTING DPR PUMP
Too much air overrun too high-popping problems
Product dispenses slowly out of disPenSing head
1 Air meter too large (Ref 45)
2 Air leak befween mix conshytainer and mix inlet
3 Air line hose crackedshysucking air (Ref 44)
4 Pump pressure too lowshycylinder not full
1 Pump pressure too low
2 PrOduct too cold
3 Low overrun
Diaphragm housing leaking mix 1 Diaphragm housing loose
2 Diaphragm defective
Piston drive assy noisy 1 Bushing bearing worn
2 Defective gear in gear motor
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SIfAKE bull SLUSH
REMEDY
1 Replace washer valve-DO NOT LUBRICATE
2 Install clamp on hose
1 Replace O-Ring and LUBRIshyCATE
1 Clean or replace air meter
2 Replace tube
1 Install smaller air meier
2 Repair as needed
3 Replace air line hose
4 Using pressure gauge adjust pressure switch
1 Using pressure gauge adjust pump pressure
2 Check product temperatureshyshould be about 18 F
3 Check meter-if plugged-clean
1 Tighten wing nuls (Ref 41)
2 Replace diaphragm (Ref 43)
1 Replace bushing bearing (Ref 19)
2 Replace gear
TROUBLE
Mix inlet hose loses prime
Mix on top of piston
PROBABLE CAUSE
1 Washer valve (Ref 25) not sealing properly
2 Mix inlet hose loose
1 Piston O-Ring leaking (Ref 22)
No Air (Overrun) 11 Ai r meter plugged (Ref I 45)
2 Curved air tube pinched
--
DPR PUMP aI
PART NO 199019(i) PART NO 199020 reg DIAPHRAGM RUBBER SLEEVE
PART NO159295 PART NO 159282reg O-RING O-RING0
PART NO 160581reg O-RING
o PART NO PART NO
PART NO199011() 160611(8) 160582 WASHER VALVE O-RING O-RING
PISTON
cJ
DIAPHRAGM HOUSING
CYLINDER
VALVE HOUSIN6 ASSEMBLY
PUUPOUTLET
DRAIN PORT
I PHNO309-755-4553 O-RING CHART HCDUKEampSONINC I
1 I84Z08 SOFT SERVE DISPENSING HEADS I
o PART NO 1605620
PAR~159--1b
PART NO PART NO 1605841 59295()
I PHNO 309-755-4553 O-R ING CHART HCDUKEampSONINC I
- Cover
- Table of Contents
- Safety
- Uncrating amp Inspection13
- Explanation of Electrical Controls
- Operation of Machine
- General Information
- Maintenance amp Adjustment
- Parts Breakdowns
- Trouble-Shooting Charts
- O-ring Charts
-
DISPENSING HEAD
16
r
Q
--~
-----_
REF PART No DESCRIPTION Tl3o 6 119928- Door Assembly shy Complete (Items 7-14) 11637- 7 196688 Door shy Less Parts
a 134921 Spigot shy Less Extension 9 134922 Handle Extension shy Spigot
10 162624 Handle 11 159295 OmiddotRings shy Spigot (Lots of 5)12 159309 O-ring shy 4 - Door 13 196066 Air Relief Screw 14 160621 a-Ring shy Air Relief Screw (Lots of 5)15 136126 Rod - Spigot Switch shy 917 8 927 16 136798 HMdKnob
38
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illmols 61244
SUPERIOR QUAUlY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
Duke Soft Serve Freezer Models 917R and 927RN
5 -______
7
6
UPDATEDDispense Head Assembly
Item Part No
115130 1 116321 2 160583 3 115129 4 160562 5 136126 6 134921 SA 162624 68 134922 7 159295 8 160584 9 162625 9A 114341 10 196185 10A 137870 108 136713
116410
Includes items 1-4 6-8
Description
Head-Assy Dispense (Complete) Head-Assy wActualor O-ring (Head-4-inch) Bleeder-Assy (Air Relief Plug) O-ring (Bleeder-Assy) Rod-Spigot Switch Spigot-long Single Handle-Black Tapered Handle-Spigot (Stainless Steel) O-ring (Spigot) O-ring (Extension) Knob-Hand Stud-Assy Cylinder 1-15116 inch (not shown) Nouie-Slar Adapter (accessory) Adapter-Yogurt Nozzle (not shown) Extension-Spigot (accessory-cake not shown) Kit-Dispense Head Switch
( Use only original or authorized replacement parts with this freezer )
DISPENSING HEAD
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH uu
REF PART No 114765
1 196082 2 114313 3 137018 5 136618 6 162626 8 134499 9 162625
10 115129 11 136794 12 159309 13 159295 14 160562 15 136713 16 160584
DESCRIPTION Door Assy-Complete Door-Less Parts Spigot Assy-Side Spigot Only-Center Extension Only-Center Handle Stud-Handle Stop Hand Knob Air Re1ief-Assy Rod-Spigot Switch O-Ring-4-Door O-Ring-Spigot O-Ring-Air Relief Extension-Spigot a-Ring
39
40
PUMP MOTOR AND HOUSING ASSEMBLY SAFETY SWITCH ASSEMBLY
PRESSURE SWITCH ASSEMBLY ijreg~
I
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH IIIUaA
CAB DPR PUMP BREAKDOWN
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 196091 Pump Base 46 114009 Pump Cover 2 136088 Pump Support 47 113464 Base Bracket Assembly 3 150784 Strain Relief Bushing 48 135725 Stud 1-78 4 Power Cord 49 160131 516 Flatwasher 5 160075 10-24 x 38 Screw 50 160293 Speed Clip 6 135416 Cover Electric Box 51 135724 Button 7 160141 14 Lockwasher 52 160140 10 Lockwasher 8 160491 14-20 x 34 Socket Screw 53 135726 Stud 3 9 113497 Motor Cord 18-3 SJT 54 160109 10-24 Hex Nut 10 151127 Motor 40 RPM Soft Serve 55 135729 Switch Actuator 11 160023 14-20 x 1 Screw 56 135731 Stop - Max Pressure 12 153317 Half Moon Key 57 162315 Spring - Soft Serve 13 112925 Cam Drive Plate Assembly 58 160138 10 Flat Washer 14 160495 14-20 x 14 Set Screw 59 160304 10-24 Stop Nut 15 160369 Pin 60 150456 Pressure Switch 16 134614 Swing Clamp 61 135744 Insulator - Fiber 17 134521 Adjusting Clamp 62 160381 6-32 x 1 Socket Screw 18 160488 Thumb Screw 63 160393 6 Flatwasher 19 134604 Bearing Bushing 64 160146 6 Lockwasher 20 134602 Connecting Rod 65 160309 6-32 Hex Nut 21 134601 Piston 66 160006 6-32 x 14 Screw 22 159295 O-Ring 67 160001 8-32 x 38 Screw 23 134603 Wrist Pin 68 160470 8 Lockwasher 24 136089 Cylinder 69 150481 Circuit Breaker 25 199011 Washer Valve 70 135727 Switch Bracket 26 159282 O-Ring 71 136311 Spacer - Cover Switch 27 113839 Pump Valve Housing 72 160028 Truss Head Screw
Assembly (Metal) 14-20 x 34 SST 28 160582 O-Ring 73 160141 Lockwasher 14 29 199020 Sleeve Rubber 74 160104 Hex Nut 14-20 30 135793 Retainer Clip 75 136312 Button Guard 31 135791 Adapter Hose Outlet 76 160020 Hex Hd Cap Screw 32 160581 O-Ring 14-20 x 1 SST 33 135790 Piston 77 113869 Switch Bracket 34 162308 Spring Soft Serve 78 136110 Button Cover Switch 35 135792 Drain Port 79 162314 Spring 36 160611 O-Ring 80 150456 Switch Pump Safety 37 135896 Hose 24 81 135004 Switch Cover 38 160738 Hose Clamp 82 160296 Screw RH 39 136288 Keeper 6-32 x 1-14 40 160554 O-Ring 83 160146 Lockwasher 6 41 160368 Wing Nut Int Tooth 42 130054 Diaphragm Housing 84 160393 Flatwasher 6 43 199019 Diaphragm 85 160309 Hex Nut 6-32 44 196074 Air Tube-Curved 86 114572 Hose Clamp 45 163433 Air Meter - 20 87 160048 14-20 x 12 TRHM
(other sizes available) 88 160308 6-32 x 516 RDHM 89 114581 Circuit Breaker Bracket
Not Shown 90 163109 Stop Pivot 112791 DPR Pressure Gauge
41
Mfg by H C DUKE amp SON INC 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
42
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Unit does not operate 1 Fuse blown at main disconshy 1 Check fuse size check for low nect voltage if not within 10 of
nameplate rating install transformer or call power company
2 Beater motor out on overload 2 Press starter reset button and check for low voltage Check producllemperalure and overrun
3 Disconnected or broken wife 3 Check wiring and wire connecshyin electrical circuit lions repair or replace lead
wires as necessary
4 Faulty selector switch 4 Replace selector switch
5 Out on high pressure 5 Check for low waler supply or dirty air conden ser
6 Out on low pressure 6 Check limit control and freon charge
Compressor does not operate f Troubte in compressor con- I Refer to Trouble-Shootingshyor operates improperly densing circuit Compressor I Condensing
Circuit
2 Faulty capacitor assembly 2 Replace capaCitor assembly (Single phase only)
3 Faulty contactor 3 Replace contaclOr or pOints
Compressor operates but 1 Loose con neclion at motor 1 Tighten connection beater motor does not starter coil (electrical box)
2 Open starter coil 2 Replace coil
3 Faulty capacitor assembly 3 Replace capaCitor assembly (Single phase only)
Dispensed product too hard 1 Cylinder themostat erratic 1 Adjust thermo slat or replace or set too low
2 Faulty time delay relay 2 Replace time delay relay
3 Solenoid valve leaking 3 Replace solenoid valve
4 Low suction pressure 4 See chart on page 15 for adshyjustments
Leaking of mix from rear housshy 1 Damaged bealer shalt seal 1 Replace shaft seal or O-ring ing discharge tube to drip tray inside seal assy
Mig by H C DUKE amp SON INC bull 2116 Eighlh Avenue Easl Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Mix leaking at dispensing head 1 Faulty 4 O-Ring
2 Head not properly installed
1 Replace 4 O-Ring
2 Install head properly
Mix sours in cabinet 1 Cabinet thermostat setting too high
2 Cabinet thermostat detective
3 Cabinet solenoid valve deshyfective
4 Cabinet switch defective
5 Beater motor out on overshyload (cab side)
1 Adjust thermostat
2 Replace thermostat
3 Replace coil or solenoid
4 Replace cabinet switch
S Reset overload for beater motor See pg 42 unit does not operate
Cabinet too COld
Machine runs continually and Product continues to get colder
Compressor operates only when dispensing
Unit runs conMuously Product does nol reach 180 F temperature
6 Door sWitch defectIVe
1 Cabinet thermostat setting too low
2 Defective thermostat
3 Cabinet solenoid stuck open
4 Cabinet expansion valve set too low
1 Plunger switch out of adjustshyment
2 Su ction pressure too low
3 Defective plunger switch
4 Plunger switch rod engaged
5 Faulty time delay relay
6 Starter or relay contacts stuck
7 Faulty thermostat or bulb not deep enough in well
6 Replace door SWitch
1 Adjust thermostat
2 Replace thermostat
3 Replace solenoid
4 Adjust cabinet expansion valve (See pg 15)
1 Adjust plunger switch
2 Adjust expansion valve and check freon charge
3 Replace plunger switch
4 Close plunger completely
5 Replace time delay relay
I 6 Check contacts i
7 Check bulb location or replace thermostat
1 Cylinder themostat setting 1 Adjust thermostat or replace too high or thermostat deshyfective
1 Trouble in compressor I condensing system
2 ExpanSion valve setiing is too high
3 Low on refrigeranl
1 See Trouble-Shooling-CompressorI Condensing circuit
2 Adjust expansion valve
3 Check and repair leak and recharge
1
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE SLUSHbull
43
44
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Dispensed product too soft (Product temperature above 21 0 F)
1 Automatic expansion yalve incorrectly set or erratic in operation
-2 Leak in refrigeration system
resulting in little or no refrigeration
1 Adjust or replace expanSion valve
2 Pump down system or remove refrigerant charge repair leak evacuate and recharge
3 Excessive oil in system 3 Drain compressor to proper oil leyel pump down and flush system
4 Thermostat set too high taulty
or 4 Adiust thermostat or replace
Product dispenses slOWly out dispensing head
1 Reverse rotation 1 Change rotation to clockshywise from front of freezer
2 Dispensing speed adjustshyment boll too far down
2 Adjust bolt upward
3 Pum p problem 3 See pump Trouble-Shooting chart
4 Product too cold 4 See dispensed product too hard pg42
TROUBLE-SHOOTING CHART COMPRESSORICONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor will not start -hums intermittently (cycling on oyerload)
1 Improperly wired
2 Low line Yoltage
3 Open starting capacitor (single phase only)
4 High discharge pressure
1 Check wiring against diagram
2 Ask power company to increase YOltage to not less than 10 below nameplate rating or install transformer Check for inadequate wire size
3 Replace starting capacitor
4 CheCK water regulating valve setting Check water or air condenser and clean if necessary Make sure disshycharge shut-oft valve is open
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor starts but remains 1 Low line voltage 1 Ask power company to in start windings increase voltage to not less (Single phase only) than 10 below nameplate
rating or install transrormer
2 Improperly wired 2 Check wiring against drawing Check wire size
3 Running capacitor shorted 3 Check by disconnecting running capacitor
4 Starting capacitor weak 4 Check capacitor replace
5 High disCharge pressure 5 Check water regulating valve check water or air condenser and clean il necessary Check discharge shut-off valve
Starter burned out 1 Low line voltage 1 Ask power company to inshycrease voltage to not less than 10 below nameplate rating or install transformer
2 Excessive line voltage 2 Ask power company to reduce voltage to maximum of 10 over nameplate rating
Starting capacitors burn out 1 Voltage 100 low 1 Ask power company to (Single phase only) increase voltage to not less
than 10 below nameplate rating or install translonmer
2 Improper capacitor 2 Replace capacitor with properly rated capacitor as listed in manual
Running capacitors burn out 1 Excessive line voltage 1 Ask power company to reshy(Single phase only) duce line voltage to not more
than 10 above rating 01 motor
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
45
46
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Unit operates long or continuously
1 Shortage of gas
2 Dirty condenser
3 Moisture in system
4 Compressor failing
1 Repair leak and recharge
2 Clean condenser
3 Evacuate and recharge system
4 Check compressor lor proper pressures If inadequate replace compressor
Head pressure too high 1 Refrigerant overcharge
2 Air in system
3 Dirty condenser (air cooled)
4 Unit location too warm (air cooled)
5 Restricted water cooled condenser
6 Water turned off or defective
1 Purge system
2 Purge system evacuate and recharge
3 Clean condenser
4 Relocate unIt away from restriction Place nothing against back or on top of unit
5 Clean or replace condenser
6 Turn on water Or replace water regulating valve regulating valve
Head pressure too low 1 Shortage 01 refrigerant 1 Repair leak and recharge
2 Water regulating valve open 2 Adjust regulating valve too wide
Water 1I0wing through water 1 Water regulating valve 1 Replace water regulating valve waste line when unit is not in operation
defective
Noisy compressor 1 Tubing raUle 1 Bend tubes away from contact
NOTE Refer to warranty card prior to compressor replacement
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING DPR PUMP
TROUBLE PROBABLE CAUSE REMEDY
Pump will not run 1 Pump cover removed 1 Install pump cover
2 Pressure switch actuating 2 Free bulton-check spring and
bulton stuck open (in) pressure switch alignment
3 Pressure switch burned out 3 Replace pressure switch
4 Starting switch in motor bad 4 Install new starting switch
5 Motor burned out 5 Replace motor
6 Circuit breaker kicked out 6 Allow to re- set Replace it or faulty circuit breaker will not
automatically re-set
Motor runs-cam drive plate 1 Loose cam drive plate 1 Tighten set screw in cam will not turn drive plate Check woodruff key
2 Gear stripped 2 Replace gear
Pump will not shut off Mix 1 Pressure swilch actuating 1 Free button-check pressure shoots out pressure relief bulton stuck closed (out) switch alignment
2 Pressure switch stuck in 2 Replace pressure switch closed position
3 Pressure switch assy out 3 Using pressure gauge adjust of adjustment pressure
4 Dirty or plugged diaphragm 4 Disassemble and clean housing (Ref 42) housing
5 Defective O-Ring on 5 Replace O-Ring pressure relief piston
Pump will not prime 1 Insufficient supply of mix 1 Replenish mix supply
2 Piston O-ring defective-no 2 Replace piston O-Ring and suction lubricate
3 Washer valve not sealing 3 Replace washer valve DO NOT LUBRICATE
Pump primes No pressure in 1 Sleeve (Rei 29) not sealing 1 Replace sleeve DO NOT cylinder properly LUBRICATE
2 Loose hose connection on 2 Install or tighten hose clamp pump valve housing (Ref 27)
Mix shoots out Of air intake line 1 Washer valve (Ref 25) 1 Replace washer valve-DO not sealing properly NOT LUBRICATE
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOfT SERVE bull SHAKE bull SLUSH
47
48
TROUBLE-SHOOTING DPR PUMP
Too much air overrun too high-popping problems
Product dispenses slowly out of disPenSing head
1 Air meter too large (Ref 45)
2 Air leak befween mix conshytainer and mix inlet
3 Air line hose crackedshysucking air (Ref 44)
4 Pump pressure too lowshycylinder not full
1 Pump pressure too low
2 PrOduct too cold
3 Low overrun
Diaphragm housing leaking mix 1 Diaphragm housing loose
2 Diaphragm defective
Piston drive assy noisy 1 Bushing bearing worn
2 Defective gear in gear motor
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SIfAKE bull SLUSH
REMEDY
1 Replace washer valve-DO NOT LUBRICATE
2 Install clamp on hose
1 Replace O-Ring and LUBRIshyCATE
1 Clean or replace air meter
2 Replace tube
1 Install smaller air meier
2 Repair as needed
3 Replace air line hose
4 Using pressure gauge adjust pressure switch
1 Using pressure gauge adjust pump pressure
2 Check product temperatureshyshould be about 18 F
3 Check meter-if plugged-clean
1 Tighten wing nuls (Ref 41)
2 Replace diaphragm (Ref 43)
1 Replace bushing bearing (Ref 19)
2 Replace gear
TROUBLE
Mix inlet hose loses prime
Mix on top of piston
PROBABLE CAUSE
1 Washer valve (Ref 25) not sealing properly
2 Mix inlet hose loose
1 Piston O-Ring leaking (Ref 22)
No Air (Overrun) 11 Ai r meter plugged (Ref I 45)
2 Curved air tube pinched
--
DPR PUMP aI
PART NO 199019(i) PART NO 199020 reg DIAPHRAGM RUBBER SLEEVE
PART NO159295 PART NO 159282reg O-RING O-RING0
PART NO 160581reg O-RING
o PART NO PART NO
PART NO199011() 160611(8) 160582 WASHER VALVE O-RING O-RING
PISTON
cJ
DIAPHRAGM HOUSING
CYLINDER
VALVE HOUSIN6 ASSEMBLY
PUUPOUTLET
DRAIN PORT
I PHNO309-755-4553 O-RING CHART HCDUKEampSONINC I
1 I84Z08 SOFT SERVE DISPENSING HEADS I
o PART NO 1605620
PAR~159--1b
PART NO PART NO 1605841 59295()
I PHNO 309-755-4553 O-R ING CHART HCDUKEampSONINC I
- Cover
- Table of Contents
- Safety
- Uncrating amp Inspection13
- Explanation of Electrical Controls
- Operation of Machine
- General Information
- Maintenance amp Adjustment
- Parts Breakdowns
- Trouble-Shooting Charts
- O-ring Charts
-
Duke Soft Serve Freezer Models 917R and 927RN
5 -______
7
6
UPDATEDDispense Head Assembly
Item Part No
115130 1 116321 2 160583 3 115129 4 160562 5 136126 6 134921 SA 162624 68 134922 7 159295 8 160584 9 162625 9A 114341 10 196185 10A 137870 108 136713
116410
Includes items 1-4 6-8
Description
Head-Assy Dispense (Complete) Head-Assy wActualor O-ring (Head-4-inch) Bleeder-Assy (Air Relief Plug) O-ring (Bleeder-Assy) Rod-Spigot Switch Spigot-long Single Handle-Black Tapered Handle-Spigot (Stainless Steel) O-ring (Spigot) O-ring (Extension) Knob-Hand Stud-Assy Cylinder 1-15116 inch (not shown) Nouie-Slar Adapter (accessory) Adapter-Yogurt Nozzle (not shown) Extension-Spigot (accessory-cake not shown) Kit-Dispense Head Switch
( Use only original or authorized replacement parts with this freezer )
DISPENSING HEAD
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH uu
REF PART No 114765
1 196082 2 114313 3 137018 5 136618 6 162626 8 134499 9 162625
10 115129 11 136794 12 159309 13 159295 14 160562 15 136713 16 160584
DESCRIPTION Door Assy-Complete Door-Less Parts Spigot Assy-Side Spigot Only-Center Extension Only-Center Handle Stud-Handle Stop Hand Knob Air Re1ief-Assy Rod-Spigot Switch O-Ring-4-Door O-Ring-Spigot O-Ring-Air Relief Extension-Spigot a-Ring
39
40
PUMP MOTOR AND HOUSING ASSEMBLY SAFETY SWITCH ASSEMBLY
PRESSURE SWITCH ASSEMBLY ijreg~
I
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH IIIUaA
CAB DPR PUMP BREAKDOWN
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 196091 Pump Base 46 114009 Pump Cover 2 136088 Pump Support 47 113464 Base Bracket Assembly 3 150784 Strain Relief Bushing 48 135725 Stud 1-78 4 Power Cord 49 160131 516 Flatwasher 5 160075 10-24 x 38 Screw 50 160293 Speed Clip 6 135416 Cover Electric Box 51 135724 Button 7 160141 14 Lockwasher 52 160140 10 Lockwasher 8 160491 14-20 x 34 Socket Screw 53 135726 Stud 3 9 113497 Motor Cord 18-3 SJT 54 160109 10-24 Hex Nut 10 151127 Motor 40 RPM Soft Serve 55 135729 Switch Actuator 11 160023 14-20 x 1 Screw 56 135731 Stop - Max Pressure 12 153317 Half Moon Key 57 162315 Spring - Soft Serve 13 112925 Cam Drive Plate Assembly 58 160138 10 Flat Washer 14 160495 14-20 x 14 Set Screw 59 160304 10-24 Stop Nut 15 160369 Pin 60 150456 Pressure Switch 16 134614 Swing Clamp 61 135744 Insulator - Fiber 17 134521 Adjusting Clamp 62 160381 6-32 x 1 Socket Screw 18 160488 Thumb Screw 63 160393 6 Flatwasher 19 134604 Bearing Bushing 64 160146 6 Lockwasher 20 134602 Connecting Rod 65 160309 6-32 Hex Nut 21 134601 Piston 66 160006 6-32 x 14 Screw 22 159295 O-Ring 67 160001 8-32 x 38 Screw 23 134603 Wrist Pin 68 160470 8 Lockwasher 24 136089 Cylinder 69 150481 Circuit Breaker 25 199011 Washer Valve 70 135727 Switch Bracket 26 159282 O-Ring 71 136311 Spacer - Cover Switch 27 113839 Pump Valve Housing 72 160028 Truss Head Screw
Assembly (Metal) 14-20 x 34 SST 28 160582 O-Ring 73 160141 Lockwasher 14 29 199020 Sleeve Rubber 74 160104 Hex Nut 14-20 30 135793 Retainer Clip 75 136312 Button Guard 31 135791 Adapter Hose Outlet 76 160020 Hex Hd Cap Screw 32 160581 O-Ring 14-20 x 1 SST 33 135790 Piston 77 113869 Switch Bracket 34 162308 Spring Soft Serve 78 136110 Button Cover Switch 35 135792 Drain Port 79 162314 Spring 36 160611 O-Ring 80 150456 Switch Pump Safety 37 135896 Hose 24 81 135004 Switch Cover 38 160738 Hose Clamp 82 160296 Screw RH 39 136288 Keeper 6-32 x 1-14 40 160554 O-Ring 83 160146 Lockwasher 6 41 160368 Wing Nut Int Tooth 42 130054 Diaphragm Housing 84 160393 Flatwasher 6 43 199019 Diaphragm 85 160309 Hex Nut 6-32 44 196074 Air Tube-Curved 86 114572 Hose Clamp 45 163433 Air Meter - 20 87 160048 14-20 x 12 TRHM
(other sizes available) 88 160308 6-32 x 516 RDHM 89 114581 Circuit Breaker Bracket
Not Shown 90 163109 Stop Pivot 112791 DPR Pressure Gauge
41
Mfg by H C DUKE amp SON INC 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
42
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Unit does not operate 1 Fuse blown at main disconshy 1 Check fuse size check for low nect voltage if not within 10 of
nameplate rating install transformer or call power company
2 Beater motor out on overload 2 Press starter reset button and check for low voltage Check producllemperalure and overrun
3 Disconnected or broken wife 3 Check wiring and wire connecshyin electrical circuit lions repair or replace lead
wires as necessary
4 Faulty selector switch 4 Replace selector switch
5 Out on high pressure 5 Check for low waler supply or dirty air conden ser
6 Out on low pressure 6 Check limit control and freon charge
Compressor does not operate f Troubte in compressor con- I Refer to Trouble-Shootingshyor operates improperly densing circuit Compressor I Condensing
Circuit
2 Faulty capacitor assembly 2 Replace capaCitor assembly (Single phase only)
3 Faulty contactor 3 Replace contaclOr or pOints
Compressor operates but 1 Loose con neclion at motor 1 Tighten connection beater motor does not starter coil (electrical box)
2 Open starter coil 2 Replace coil
3 Faulty capacitor assembly 3 Replace capaCitor assembly (Single phase only)
Dispensed product too hard 1 Cylinder themostat erratic 1 Adjust thermo slat or replace or set too low
2 Faulty time delay relay 2 Replace time delay relay
3 Solenoid valve leaking 3 Replace solenoid valve
4 Low suction pressure 4 See chart on page 15 for adshyjustments
Leaking of mix from rear housshy 1 Damaged bealer shalt seal 1 Replace shaft seal or O-ring ing discharge tube to drip tray inside seal assy
Mig by H C DUKE amp SON INC bull 2116 Eighlh Avenue Easl Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Mix leaking at dispensing head 1 Faulty 4 O-Ring
2 Head not properly installed
1 Replace 4 O-Ring
2 Install head properly
Mix sours in cabinet 1 Cabinet thermostat setting too high
2 Cabinet thermostat detective
3 Cabinet solenoid valve deshyfective
4 Cabinet switch defective
5 Beater motor out on overshyload (cab side)
1 Adjust thermostat
2 Replace thermostat
3 Replace coil or solenoid
4 Replace cabinet switch
S Reset overload for beater motor See pg 42 unit does not operate
Cabinet too COld
Machine runs continually and Product continues to get colder
Compressor operates only when dispensing
Unit runs conMuously Product does nol reach 180 F temperature
6 Door sWitch defectIVe
1 Cabinet thermostat setting too low
2 Defective thermostat
3 Cabinet solenoid stuck open
4 Cabinet expansion valve set too low
1 Plunger switch out of adjustshyment
2 Su ction pressure too low
3 Defective plunger switch
4 Plunger switch rod engaged
5 Faulty time delay relay
6 Starter or relay contacts stuck
7 Faulty thermostat or bulb not deep enough in well
6 Replace door SWitch
1 Adjust thermostat
2 Replace thermostat
3 Replace solenoid
4 Adjust cabinet expansion valve (See pg 15)
1 Adjust plunger switch
2 Adjust expansion valve and check freon charge
3 Replace plunger switch
4 Close plunger completely
5 Replace time delay relay
I 6 Check contacts i
7 Check bulb location or replace thermostat
1 Cylinder themostat setting 1 Adjust thermostat or replace too high or thermostat deshyfective
1 Trouble in compressor I condensing system
2 ExpanSion valve setiing is too high
3 Low on refrigeranl
1 See Trouble-Shooling-CompressorI Condensing circuit
2 Adjust expansion valve
3 Check and repair leak and recharge
1
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE SLUSHbull
43
44
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Dispensed product too soft (Product temperature above 21 0 F)
1 Automatic expansion yalve incorrectly set or erratic in operation
-2 Leak in refrigeration system
resulting in little or no refrigeration
1 Adjust or replace expanSion valve
2 Pump down system or remove refrigerant charge repair leak evacuate and recharge
3 Excessive oil in system 3 Drain compressor to proper oil leyel pump down and flush system
4 Thermostat set too high taulty
or 4 Adiust thermostat or replace
Product dispenses slOWly out dispensing head
1 Reverse rotation 1 Change rotation to clockshywise from front of freezer
2 Dispensing speed adjustshyment boll too far down
2 Adjust bolt upward
3 Pum p problem 3 See pump Trouble-Shooting chart
4 Product too cold 4 See dispensed product too hard pg42
TROUBLE-SHOOTING CHART COMPRESSORICONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor will not start -hums intermittently (cycling on oyerload)
1 Improperly wired
2 Low line Yoltage
3 Open starting capacitor (single phase only)
4 High discharge pressure
1 Check wiring against diagram
2 Ask power company to increase YOltage to not less than 10 below nameplate rating or install transformer Check for inadequate wire size
3 Replace starting capacitor
4 CheCK water regulating valve setting Check water or air condenser and clean if necessary Make sure disshycharge shut-oft valve is open
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor starts but remains 1 Low line voltage 1 Ask power company to in start windings increase voltage to not less (Single phase only) than 10 below nameplate
rating or install transrormer
2 Improperly wired 2 Check wiring against drawing Check wire size
3 Running capacitor shorted 3 Check by disconnecting running capacitor
4 Starting capacitor weak 4 Check capacitor replace
5 High disCharge pressure 5 Check water regulating valve check water or air condenser and clean il necessary Check discharge shut-off valve
Starter burned out 1 Low line voltage 1 Ask power company to inshycrease voltage to not less than 10 below nameplate rating or install transformer
2 Excessive line voltage 2 Ask power company to reduce voltage to maximum of 10 over nameplate rating
Starting capacitors burn out 1 Voltage 100 low 1 Ask power company to (Single phase only) increase voltage to not less
than 10 below nameplate rating or install translonmer
2 Improper capacitor 2 Replace capacitor with properly rated capacitor as listed in manual
Running capacitors burn out 1 Excessive line voltage 1 Ask power company to reshy(Single phase only) duce line voltage to not more
than 10 above rating 01 motor
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
45
46
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Unit operates long or continuously
1 Shortage of gas
2 Dirty condenser
3 Moisture in system
4 Compressor failing
1 Repair leak and recharge
2 Clean condenser
3 Evacuate and recharge system
4 Check compressor lor proper pressures If inadequate replace compressor
Head pressure too high 1 Refrigerant overcharge
2 Air in system
3 Dirty condenser (air cooled)
4 Unit location too warm (air cooled)
5 Restricted water cooled condenser
6 Water turned off or defective
1 Purge system
2 Purge system evacuate and recharge
3 Clean condenser
4 Relocate unIt away from restriction Place nothing against back or on top of unit
5 Clean or replace condenser
6 Turn on water Or replace water regulating valve regulating valve
Head pressure too low 1 Shortage 01 refrigerant 1 Repair leak and recharge
2 Water regulating valve open 2 Adjust regulating valve too wide
Water 1I0wing through water 1 Water regulating valve 1 Replace water regulating valve waste line when unit is not in operation
defective
Noisy compressor 1 Tubing raUle 1 Bend tubes away from contact
NOTE Refer to warranty card prior to compressor replacement
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING DPR PUMP
TROUBLE PROBABLE CAUSE REMEDY
Pump will not run 1 Pump cover removed 1 Install pump cover
2 Pressure switch actuating 2 Free bulton-check spring and
bulton stuck open (in) pressure switch alignment
3 Pressure switch burned out 3 Replace pressure switch
4 Starting switch in motor bad 4 Install new starting switch
5 Motor burned out 5 Replace motor
6 Circuit breaker kicked out 6 Allow to re- set Replace it or faulty circuit breaker will not
automatically re-set
Motor runs-cam drive plate 1 Loose cam drive plate 1 Tighten set screw in cam will not turn drive plate Check woodruff key
2 Gear stripped 2 Replace gear
Pump will not shut off Mix 1 Pressure swilch actuating 1 Free button-check pressure shoots out pressure relief bulton stuck closed (out) switch alignment
2 Pressure switch stuck in 2 Replace pressure switch closed position
3 Pressure switch assy out 3 Using pressure gauge adjust of adjustment pressure
4 Dirty or plugged diaphragm 4 Disassemble and clean housing (Ref 42) housing
5 Defective O-Ring on 5 Replace O-Ring pressure relief piston
Pump will not prime 1 Insufficient supply of mix 1 Replenish mix supply
2 Piston O-ring defective-no 2 Replace piston O-Ring and suction lubricate
3 Washer valve not sealing 3 Replace washer valve DO NOT LUBRICATE
Pump primes No pressure in 1 Sleeve (Rei 29) not sealing 1 Replace sleeve DO NOT cylinder properly LUBRICATE
2 Loose hose connection on 2 Install or tighten hose clamp pump valve housing (Ref 27)
Mix shoots out Of air intake line 1 Washer valve (Ref 25) 1 Replace washer valve-DO not sealing properly NOT LUBRICATE
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOfT SERVE bull SHAKE bull SLUSH
47
48
TROUBLE-SHOOTING DPR PUMP
Too much air overrun too high-popping problems
Product dispenses slowly out of disPenSing head
1 Air meter too large (Ref 45)
2 Air leak befween mix conshytainer and mix inlet
3 Air line hose crackedshysucking air (Ref 44)
4 Pump pressure too lowshycylinder not full
1 Pump pressure too low
2 PrOduct too cold
3 Low overrun
Diaphragm housing leaking mix 1 Diaphragm housing loose
2 Diaphragm defective
Piston drive assy noisy 1 Bushing bearing worn
2 Defective gear in gear motor
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SIfAKE bull SLUSH
REMEDY
1 Replace washer valve-DO NOT LUBRICATE
2 Install clamp on hose
1 Replace O-Ring and LUBRIshyCATE
1 Clean or replace air meter
2 Replace tube
1 Install smaller air meier
2 Repair as needed
3 Replace air line hose
4 Using pressure gauge adjust pressure switch
1 Using pressure gauge adjust pump pressure
2 Check product temperatureshyshould be about 18 F
3 Check meter-if plugged-clean
1 Tighten wing nuls (Ref 41)
2 Replace diaphragm (Ref 43)
1 Replace bushing bearing (Ref 19)
2 Replace gear
TROUBLE
Mix inlet hose loses prime
Mix on top of piston
PROBABLE CAUSE
1 Washer valve (Ref 25) not sealing properly
2 Mix inlet hose loose
1 Piston O-Ring leaking (Ref 22)
No Air (Overrun) 11 Ai r meter plugged (Ref I 45)
2 Curved air tube pinched
--
DPR PUMP aI
PART NO 199019(i) PART NO 199020 reg DIAPHRAGM RUBBER SLEEVE
PART NO159295 PART NO 159282reg O-RING O-RING0
PART NO 160581reg O-RING
o PART NO PART NO
PART NO199011() 160611(8) 160582 WASHER VALVE O-RING O-RING
PISTON
cJ
DIAPHRAGM HOUSING
CYLINDER
VALVE HOUSIN6 ASSEMBLY
PUUPOUTLET
DRAIN PORT
I PHNO309-755-4553 O-RING CHART HCDUKEampSONINC I
1 I84Z08 SOFT SERVE DISPENSING HEADS I
o PART NO 1605620
PAR~159--1b
PART NO PART NO 1605841 59295()
I PHNO 309-755-4553 O-R ING CHART HCDUKEampSONINC I
- Cover
- Table of Contents
- Safety
- Uncrating amp Inspection13
- Explanation of Electrical Controls
- Operation of Machine
- General Information
- Maintenance amp Adjustment
- Parts Breakdowns
- Trouble-Shooting Charts
- O-ring Charts
-
DISPENSING HEAD
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH uu
REF PART No 114765
1 196082 2 114313 3 137018 5 136618 6 162626 8 134499 9 162625
10 115129 11 136794 12 159309 13 159295 14 160562 15 136713 16 160584
DESCRIPTION Door Assy-Complete Door-Less Parts Spigot Assy-Side Spigot Only-Center Extension Only-Center Handle Stud-Handle Stop Hand Knob Air Re1ief-Assy Rod-Spigot Switch O-Ring-4-Door O-Ring-Spigot O-Ring-Air Relief Extension-Spigot a-Ring
39
40
PUMP MOTOR AND HOUSING ASSEMBLY SAFETY SWITCH ASSEMBLY
PRESSURE SWITCH ASSEMBLY ijreg~
I
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH IIIUaA
CAB DPR PUMP BREAKDOWN
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 196091 Pump Base 46 114009 Pump Cover 2 136088 Pump Support 47 113464 Base Bracket Assembly 3 150784 Strain Relief Bushing 48 135725 Stud 1-78 4 Power Cord 49 160131 516 Flatwasher 5 160075 10-24 x 38 Screw 50 160293 Speed Clip 6 135416 Cover Electric Box 51 135724 Button 7 160141 14 Lockwasher 52 160140 10 Lockwasher 8 160491 14-20 x 34 Socket Screw 53 135726 Stud 3 9 113497 Motor Cord 18-3 SJT 54 160109 10-24 Hex Nut 10 151127 Motor 40 RPM Soft Serve 55 135729 Switch Actuator 11 160023 14-20 x 1 Screw 56 135731 Stop - Max Pressure 12 153317 Half Moon Key 57 162315 Spring - Soft Serve 13 112925 Cam Drive Plate Assembly 58 160138 10 Flat Washer 14 160495 14-20 x 14 Set Screw 59 160304 10-24 Stop Nut 15 160369 Pin 60 150456 Pressure Switch 16 134614 Swing Clamp 61 135744 Insulator - Fiber 17 134521 Adjusting Clamp 62 160381 6-32 x 1 Socket Screw 18 160488 Thumb Screw 63 160393 6 Flatwasher 19 134604 Bearing Bushing 64 160146 6 Lockwasher 20 134602 Connecting Rod 65 160309 6-32 Hex Nut 21 134601 Piston 66 160006 6-32 x 14 Screw 22 159295 O-Ring 67 160001 8-32 x 38 Screw 23 134603 Wrist Pin 68 160470 8 Lockwasher 24 136089 Cylinder 69 150481 Circuit Breaker 25 199011 Washer Valve 70 135727 Switch Bracket 26 159282 O-Ring 71 136311 Spacer - Cover Switch 27 113839 Pump Valve Housing 72 160028 Truss Head Screw
Assembly (Metal) 14-20 x 34 SST 28 160582 O-Ring 73 160141 Lockwasher 14 29 199020 Sleeve Rubber 74 160104 Hex Nut 14-20 30 135793 Retainer Clip 75 136312 Button Guard 31 135791 Adapter Hose Outlet 76 160020 Hex Hd Cap Screw 32 160581 O-Ring 14-20 x 1 SST 33 135790 Piston 77 113869 Switch Bracket 34 162308 Spring Soft Serve 78 136110 Button Cover Switch 35 135792 Drain Port 79 162314 Spring 36 160611 O-Ring 80 150456 Switch Pump Safety 37 135896 Hose 24 81 135004 Switch Cover 38 160738 Hose Clamp 82 160296 Screw RH 39 136288 Keeper 6-32 x 1-14 40 160554 O-Ring 83 160146 Lockwasher 6 41 160368 Wing Nut Int Tooth 42 130054 Diaphragm Housing 84 160393 Flatwasher 6 43 199019 Diaphragm 85 160309 Hex Nut 6-32 44 196074 Air Tube-Curved 86 114572 Hose Clamp 45 163433 Air Meter - 20 87 160048 14-20 x 12 TRHM
(other sizes available) 88 160308 6-32 x 516 RDHM 89 114581 Circuit Breaker Bracket
Not Shown 90 163109 Stop Pivot 112791 DPR Pressure Gauge
41
Mfg by H C DUKE amp SON INC 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
42
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Unit does not operate 1 Fuse blown at main disconshy 1 Check fuse size check for low nect voltage if not within 10 of
nameplate rating install transformer or call power company
2 Beater motor out on overload 2 Press starter reset button and check for low voltage Check producllemperalure and overrun
3 Disconnected or broken wife 3 Check wiring and wire connecshyin electrical circuit lions repair or replace lead
wires as necessary
4 Faulty selector switch 4 Replace selector switch
5 Out on high pressure 5 Check for low waler supply or dirty air conden ser
6 Out on low pressure 6 Check limit control and freon charge
Compressor does not operate f Troubte in compressor con- I Refer to Trouble-Shootingshyor operates improperly densing circuit Compressor I Condensing
Circuit
2 Faulty capacitor assembly 2 Replace capaCitor assembly (Single phase only)
3 Faulty contactor 3 Replace contaclOr or pOints
Compressor operates but 1 Loose con neclion at motor 1 Tighten connection beater motor does not starter coil (electrical box)
2 Open starter coil 2 Replace coil
3 Faulty capacitor assembly 3 Replace capaCitor assembly (Single phase only)
Dispensed product too hard 1 Cylinder themostat erratic 1 Adjust thermo slat or replace or set too low
2 Faulty time delay relay 2 Replace time delay relay
3 Solenoid valve leaking 3 Replace solenoid valve
4 Low suction pressure 4 See chart on page 15 for adshyjustments
Leaking of mix from rear housshy 1 Damaged bealer shalt seal 1 Replace shaft seal or O-ring ing discharge tube to drip tray inside seal assy
Mig by H C DUKE amp SON INC bull 2116 Eighlh Avenue Easl Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Mix leaking at dispensing head 1 Faulty 4 O-Ring
2 Head not properly installed
1 Replace 4 O-Ring
2 Install head properly
Mix sours in cabinet 1 Cabinet thermostat setting too high
2 Cabinet thermostat detective
3 Cabinet solenoid valve deshyfective
4 Cabinet switch defective
5 Beater motor out on overshyload (cab side)
1 Adjust thermostat
2 Replace thermostat
3 Replace coil or solenoid
4 Replace cabinet switch
S Reset overload for beater motor See pg 42 unit does not operate
Cabinet too COld
Machine runs continually and Product continues to get colder
Compressor operates only when dispensing
Unit runs conMuously Product does nol reach 180 F temperature
6 Door sWitch defectIVe
1 Cabinet thermostat setting too low
2 Defective thermostat
3 Cabinet solenoid stuck open
4 Cabinet expansion valve set too low
1 Plunger switch out of adjustshyment
2 Su ction pressure too low
3 Defective plunger switch
4 Plunger switch rod engaged
5 Faulty time delay relay
6 Starter or relay contacts stuck
7 Faulty thermostat or bulb not deep enough in well
6 Replace door SWitch
1 Adjust thermostat
2 Replace thermostat
3 Replace solenoid
4 Adjust cabinet expansion valve (See pg 15)
1 Adjust plunger switch
2 Adjust expansion valve and check freon charge
3 Replace plunger switch
4 Close plunger completely
5 Replace time delay relay
I 6 Check contacts i
7 Check bulb location or replace thermostat
1 Cylinder themostat setting 1 Adjust thermostat or replace too high or thermostat deshyfective
1 Trouble in compressor I condensing system
2 ExpanSion valve setiing is too high
3 Low on refrigeranl
1 See Trouble-Shooling-CompressorI Condensing circuit
2 Adjust expansion valve
3 Check and repair leak and recharge
1
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE SLUSHbull
43
44
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Dispensed product too soft (Product temperature above 21 0 F)
1 Automatic expansion yalve incorrectly set or erratic in operation
-2 Leak in refrigeration system
resulting in little or no refrigeration
1 Adjust or replace expanSion valve
2 Pump down system or remove refrigerant charge repair leak evacuate and recharge
3 Excessive oil in system 3 Drain compressor to proper oil leyel pump down and flush system
4 Thermostat set too high taulty
or 4 Adiust thermostat or replace
Product dispenses slOWly out dispensing head
1 Reverse rotation 1 Change rotation to clockshywise from front of freezer
2 Dispensing speed adjustshyment boll too far down
2 Adjust bolt upward
3 Pum p problem 3 See pump Trouble-Shooting chart
4 Product too cold 4 See dispensed product too hard pg42
TROUBLE-SHOOTING CHART COMPRESSORICONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor will not start -hums intermittently (cycling on oyerload)
1 Improperly wired
2 Low line Yoltage
3 Open starting capacitor (single phase only)
4 High discharge pressure
1 Check wiring against diagram
2 Ask power company to increase YOltage to not less than 10 below nameplate rating or install transformer Check for inadequate wire size
3 Replace starting capacitor
4 CheCK water regulating valve setting Check water or air condenser and clean if necessary Make sure disshycharge shut-oft valve is open
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor starts but remains 1 Low line voltage 1 Ask power company to in start windings increase voltage to not less (Single phase only) than 10 below nameplate
rating or install transrormer
2 Improperly wired 2 Check wiring against drawing Check wire size
3 Running capacitor shorted 3 Check by disconnecting running capacitor
4 Starting capacitor weak 4 Check capacitor replace
5 High disCharge pressure 5 Check water regulating valve check water or air condenser and clean il necessary Check discharge shut-off valve
Starter burned out 1 Low line voltage 1 Ask power company to inshycrease voltage to not less than 10 below nameplate rating or install transformer
2 Excessive line voltage 2 Ask power company to reduce voltage to maximum of 10 over nameplate rating
Starting capacitors burn out 1 Voltage 100 low 1 Ask power company to (Single phase only) increase voltage to not less
than 10 below nameplate rating or install translonmer
2 Improper capacitor 2 Replace capacitor with properly rated capacitor as listed in manual
Running capacitors burn out 1 Excessive line voltage 1 Ask power company to reshy(Single phase only) duce line voltage to not more
than 10 above rating 01 motor
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
45
46
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Unit operates long or continuously
1 Shortage of gas
2 Dirty condenser
3 Moisture in system
4 Compressor failing
1 Repair leak and recharge
2 Clean condenser
3 Evacuate and recharge system
4 Check compressor lor proper pressures If inadequate replace compressor
Head pressure too high 1 Refrigerant overcharge
2 Air in system
3 Dirty condenser (air cooled)
4 Unit location too warm (air cooled)
5 Restricted water cooled condenser
6 Water turned off or defective
1 Purge system
2 Purge system evacuate and recharge
3 Clean condenser
4 Relocate unIt away from restriction Place nothing against back or on top of unit
5 Clean or replace condenser
6 Turn on water Or replace water regulating valve regulating valve
Head pressure too low 1 Shortage 01 refrigerant 1 Repair leak and recharge
2 Water regulating valve open 2 Adjust regulating valve too wide
Water 1I0wing through water 1 Water regulating valve 1 Replace water regulating valve waste line when unit is not in operation
defective
Noisy compressor 1 Tubing raUle 1 Bend tubes away from contact
NOTE Refer to warranty card prior to compressor replacement
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING DPR PUMP
TROUBLE PROBABLE CAUSE REMEDY
Pump will not run 1 Pump cover removed 1 Install pump cover
2 Pressure switch actuating 2 Free bulton-check spring and
bulton stuck open (in) pressure switch alignment
3 Pressure switch burned out 3 Replace pressure switch
4 Starting switch in motor bad 4 Install new starting switch
5 Motor burned out 5 Replace motor
6 Circuit breaker kicked out 6 Allow to re- set Replace it or faulty circuit breaker will not
automatically re-set
Motor runs-cam drive plate 1 Loose cam drive plate 1 Tighten set screw in cam will not turn drive plate Check woodruff key
2 Gear stripped 2 Replace gear
Pump will not shut off Mix 1 Pressure swilch actuating 1 Free button-check pressure shoots out pressure relief bulton stuck closed (out) switch alignment
2 Pressure switch stuck in 2 Replace pressure switch closed position
3 Pressure switch assy out 3 Using pressure gauge adjust of adjustment pressure
4 Dirty or plugged diaphragm 4 Disassemble and clean housing (Ref 42) housing
5 Defective O-Ring on 5 Replace O-Ring pressure relief piston
Pump will not prime 1 Insufficient supply of mix 1 Replenish mix supply
2 Piston O-ring defective-no 2 Replace piston O-Ring and suction lubricate
3 Washer valve not sealing 3 Replace washer valve DO NOT LUBRICATE
Pump primes No pressure in 1 Sleeve (Rei 29) not sealing 1 Replace sleeve DO NOT cylinder properly LUBRICATE
2 Loose hose connection on 2 Install or tighten hose clamp pump valve housing (Ref 27)
Mix shoots out Of air intake line 1 Washer valve (Ref 25) 1 Replace washer valve-DO not sealing properly NOT LUBRICATE
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOfT SERVE bull SHAKE bull SLUSH
47
48
TROUBLE-SHOOTING DPR PUMP
Too much air overrun too high-popping problems
Product dispenses slowly out of disPenSing head
1 Air meter too large (Ref 45)
2 Air leak befween mix conshytainer and mix inlet
3 Air line hose crackedshysucking air (Ref 44)
4 Pump pressure too lowshycylinder not full
1 Pump pressure too low
2 PrOduct too cold
3 Low overrun
Diaphragm housing leaking mix 1 Diaphragm housing loose
2 Diaphragm defective
Piston drive assy noisy 1 Bushing bearing worn
2 Defective gear in gear motor
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SIfAKE bull SLUSH
REMEDY
1 Replace washer valve-DO NOT LUBRICATE
2 Install clamp on hose
1 Replace O-Ring and LUBRIshyCATE
1 Clean or replace air meter
2 Replace tube
1 Install smaller air meier
2 Repair as needed
3 Replace air line hose
4 Using pressure gauge adjust pressure switch
1 Using pressure gauge adjust pump pressure
2 Check product temperatureshyshould be about 18 F
3 Check meter-if plugged-clean
1 Tighten wing nuls (Ref 41)
2 Replace diaphragm (Ref 43)
1 Replace bushing bearing (Ref 19)
2 Replace gear
TROUBLE
Mix inlet hose loses prime
Mix on top of piston
PROBABLE CAUSE
1 Washer valve (Ref 25) not sealing properly
2 Mix inlet hose loose
1 Piston O-Ring leaking (Ref 22)
No Air (Overrun) 11 Ai r meter plugged (Ref I 45)
2 Curved air tube pinched
--
DPR PUMP aI
PART NO 199019(i) PART NO 199020 reg DIAPHRAGM RUBBER SLEEVE
PART NO159295 PART NO 159282reg O-RING O-RING0
PART NO 160581reg O-RING
o PART NO PART NO
PART NO199011() 160611(8) 160582 WASHER VALVE O-RING O-RING
PISTON
cJ
DIAPHRAGM HOUSING
CYLINDER
VALVE HOUSIN6 ASSEMBLY
PUUPOUTLET
DRAIN PORT
I PHNO309-755-4553 O-RING CHART HCDUKEampSONINC I
1 I84Z08 SOFT SERVE DISPENSING HEADS I
o PART NO 1605620
PAR~159--1b
PART NO PART NO 1605841 59295()
I PHNO 309-755-4553 O-R ING CHART HCDUKEampSONINC I
- Cover
- Table of Contents
- Safety
- Uncrating amp Inspection13
- Explanation of Electrical Controls
- Operation of Machine
- General Information
- Maintenance amp Adjustment
- Parts Breakdowns
- Trouble-Shooting Charts
- O-ring Charts
-
40
PUMP MOTOR AND HOUSING ASSEMBLY SAFETY SWITCH ASSEMBLY
PRESSURE SWITCH ASSEMBLY ijreg~
I
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH IIIUaA
CAB DPR PUMP BREAKDOWN
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 196091 Pump Base 46 114009 Pump Cover 2 136088 Pump Support 47 113464 Base Bracket Assembly 3 150784 Strain Relief Bushing 48 135725 Stud 1-78 4 Power Cord 49 160131 516 Flatwasher 5 160075 10-24 x 38 Screw 50 160293 Speed Clip 6 135416 Cover Electric Box 51 135724 Button 7 160141 14 Lockwasher 52 160140 10 Lockwasher 8 160491 14-20 x 34 Socket Screw 53 135726 Stud 3 9 113497 Motor Cord 18-3 SJT 54 160109 10-24 Hex Nut 10 151127 Motor 40 RPM Soft Serve 55 135729 Switch Actuator 11 160023 14-20 x 1 Screw 56 135731 Stop - Max Pressure 12 153317 Half Moon Key 57 162315 Spring - Soft Serve 13 112925 Cam Drive Plate Assembly 58 160138 10 Flat Washer 14 160495 14-20 x 14 Set Screw 59 160304 10-24 Stop Nut 15 160369 Pin 60 150456 Pressure Switch 16 134614 Swing Clamp 61 135744 Insulator - Fiber 17 134521 Adjusting Clamp 62 160381 6-32 x 1 Socket Screw 18 160488 Thumb Screw 63 160393 6 Flatwasher 19 134604 Bearing Bushing 64 160146 6 Lockwasher 20 134602 Connecting Rod 65 160309 6-32 Hex Nut 21 134601 Piston 66 160006 6-32 x 14 Screw 22 159295 O-Ring 67 160001 8-32 x 38 Screw 23 134603 Wrist Pin 68 160470 8 Lockwasher 24 136089 Cylinder 69 150481 Circuit Breaker 25 199011 Washer Valve 70 135727 Switch Bracket 26 159282 O-Ring 71 136311 Spacer - Cover Switch 27 113839 Pump Valve Housing 72 160028 Truss Head Screw
Assembly (Metal) 14-20 x 34 SST 28 160582 O-Ring 73 160141 Lockwasher 14 29 199020 Sleeve Rubber 74 160104 Hex Nut 14-20 30 135793 Retainer Clip 75 136312 Button Guard 31 135791 Adapter Hose Outlet 76 160020 Hex Hd Cap Screw 32 160581 O-Ring 14-20 x 1 SST 33 135790 Piston 77 113869 Switch Bracket 34 162308 Spring Soft Serve 78 136110 Button Cover Switch 35 135792 Drain Port 79 162314 Spring 36 160611 O-Ring 80 150456 Switch Pump Safety 37 135896 Hose 24 81 135004 Switch Cover 38 160738 Hose Clamp 82 160296 Screw RH 39 136288 Keeper 6-32 x 1-14 40 160554 O-Ring 83 160146 Lockwasher 6 41 160368 Wing Nut Int Tooth 42 130054 Diaphragm Housing 84 160393 Flatwasher 6 43 199019 Diaphragm 85 160309 Hex Nut 6-32 44 196074 Air Tube-Curved 86 114572 Hose Clamp 45 163433 Air Meter - 20 87 160048 14-20 x 12 TRHM
(other sizes available) 88 160308 6-32 x 516 RDHM 89 114581 Circuit Breaker Bracket
Not Shown 90 163109 Stop Pivot 112791 DPR Pressure Gauge
41
Mfg by H C DUKE amp SON INC 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
42
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Unit does not operate 1 Fuse blown at main disconshy 1 Check fuse size check for low nect voltage if not within 10 of
nameplate rating install transformer or call power company
2 Beater motor out on overload 2 Press starter reset button and check for low voltage Check producllemperalure and overrun
3 Disconnected or broken wife 3 Check wiring and wire connecshyin electrical circuit lions repair or replace lead
wires as necessary
4 Faulty selector switch 4 Replace selector switch
5 Out on high pressure 5 Check for low waler supply or dirty air conden ser
6 Out on low pressure 6 Check limit control and freon charge
Compressor does not operate f Troubte in compressor con- I Refer to Trouble-Shootingshyor operates improperly densing circuit Compressor I Condensing
Circuit
2 Faulty capacitor assembly 2 Replace capaCitor assembly (Single phase only)
3 Faulty contactor 3 Replace contaclOr or pOints
Compressor operates but 1 Loose con neclion at motor 1 Tighten connection beater motor does not starter coil (electrical box)
2 Open starter coil 2 Replace coil
3 Faulty capacitor assembly 3 Replace capaCitor assembly (Single phase only)
Dispensed product too hard 1 Cylinder themostat erratic 1 Adjust thermo slat or replace or set too low
2 Faulty time delay relay 2 Replace time delay relay
3 Solenoid valve leaking 3 Replace solenoid valve
4 Low suction pressure 4 See chart on page 15 for adshyjustments
Leaking of mix from rear housshy 1 Damaged bealer shalt seal 1 Replace shaft seal or O-ring ing discharge tube to drip tray inside seal assy
Mig by H C DUKE amp SON INC bull 2116 Eighlh Avenue Easl Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Mix leaking at dispensing head 1 Faulty 4 O-Ring
2 Head not properly installed
1 Replace 4 O-Ring
2 Install head properly
Mix sours in cabinet 1 Cabinet thermostat setting too high
2 Cabinet thermostat detective
3 Cabinet solenoid valve deshyfective
4 Cabinet switch defective
5 Beater motor out on overshyload (cab side)
1 Adjust thermostat
2 Replace thermostat
3 Replace coil or solenoid
4 Replace cabinet switch
S Reset overload for beater motor See pg 42 unit does not operate
Cabinet too COld
Machine runs continually and Product continues to get colder
Compressor operates only when dispensing
Unit runs conMuously Product does nol reach 180 F temperature
6 Door sWitch defectIVe
1 Cabinet thermostat setting too low
2 Defective thermostat
3 Cabinet solenoid stuck open
4 Cabinet expansion valve set too low
1 Plunger switch out of adjustshyment
2 Su ction pressure too low
3 Defective plunger switch
4 Plunger switch rod engaged
5 Faulty time delay relay
6 Starter or relay contacts stuck
7 Faulty thermostat or bulb not deep enough in well
6 Replace door SWitch
1 Adjust thermostat
2 Replace thermostat
3 Replace solenoid
4 Adjust cabinet expansion valve (See pg 15)
1 Adjust plunger switch
2 Adjust expansion valve and check freon charge
3 Replace plunger switch
4 Close plunger completely
5 Replace time delay relay
I 6 Check contacts i
7 Check bulb location or replace thermostat
1 Cylinder themostat setting 1 Adjust thermostat or replace too high or thermostat deshyfective
1 Trouble in compressor I condensing system
2 ExpanSion valve setiing is too high
3 Low on refrigeranl
1 See Trouble-Shooling-CompressorI Condensing circuit
2 Adjust expansion valve
3 Check and repair leak and recharge
1
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE SLUSHbull
43
44
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Dispensed product too soft (Product temperature above 21 0 F)
1 Automatic expansion yalve incorrectly set or erratic in operation
-2 Leak in refrigeration system
resulting in little or no refrigeration
1 Adjust or replace expanSion valve
2 Pump down system or remove refrigerant charge repair leak evacuate and recharge
3 Excessive oil in system 3 Drain compressor to proper oil leyel pump down and flush system
4 Thermostat set too high taulty
or 4 Adiust thermostat or replace
Product dispenses slOWly out dispensing head
1 Reverse rotation 1 Change rotation to clockshywise from front of freezer
2 Dispensing speed adjustshyment boll too far down
2 Adjust bolt upward
3 Pum p problem 3 See pump Trouble-Shooting chart
4 Product too cold 4 See dispensed product too hard pg42
TROUBLE-SHOOTING CHART COMPRESSORICONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor will not start -hums intermittently (cycling on oyerload)
1 Improperly wired
2 Low line Yoltage
3 Open starting capacitor (single phase only)
4 High discharge pressure
1 Check wiring against diagram
2 Ask power company to increase YOltage to not less than 10 below nameplate rating or install transformer Check for inadequate wire size
3 Replace starting capacitor
4 CheCK water regulating valve setting Check water or air condenser and clean if necessary Make sure disshycharge shut-oft valve is open
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor starts but remains 1 Low line voltage 1 Ask power company to in start windings increase voltage to not less (Single phase only) than 10 below nameplate
rating or install transrormer
2 Improperly wired 2 Check wiring against drawing Check wire size
3 Running capacitor shorted 3 Check by disconnecting running capacitor
4 Starting capacitor weak 4 Check capacitor replace
5 High disCharge pressure 5 Check water regulating valve check water or air condenser and clean il necessary Check discharge shut-off valve
Starter burned out 1 Low line voltage 1 Ask power company to inshycrease voltage to not less than 10 below nameplate rating or install transformer
2 Excessive line voltage 2 Ask power company to reduce voltage to maximum of 10 over nameplate rating
Starting capacitors burn out 1 Voltage 100 low 1 Ask power company to (Single phase only) increase voltage to not less
than 10 below nameplate rating or install translonmer
2 Improper capacitor 2 Replace capacitor with properly rated capacitor as listed in manual
Running capacitors burn out 1 Excessive line voltage 1 Ask power company to reshy(Single phase only) duce line voltage to not more
than 10 above rating 01 motor
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
45
46
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Unit operates long or continuously
1 Shortage of gas
2 Dirty condenser
3 Moisture in system
4 Compressor failing
1 Repair leak and recharge
2 Clean condenser
3 Evacuate and recharge system
4 Check compressor lor proper pressures If inadequate replace compressor
Head pressure too high 1 Refrigerant overcharge
2 Air in system
3 Dirty condenser (air cooled)
4 Unit location too warm (air cooled)
5 Restricted water cooled condenser
6 Water turned off or defective
1 Purge system
2 Purge system evacuate and recharge
3 Clean condenser
4 Relocate unIt away from restriction Place nothing against back or on top of unit
5 Clean or replace condenser
6 Turn on water Or replace water regulating valve regulating valve
Head pressure too low 1 Shortage 01 refrigerant 1 Repair leak and recharge
2 Water regulating valve open 2 Adjust regulating valve too wide
Water 1I0wing through water 1 Water regulating valve 1 Replace water regulating valve waste line when unit is not in operation
defective
Noisy compressor 1 Tubing raUle 1 Bend tubes away from contact
NOTE Refer to warranty card prior to compressor replacement
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING DPR PUMP
TROUBLE PROBABLE CAUSE REMEDY
Pump will not run 1 Pump cover removed 1 Install pump cover
2 Pressure switch actuating 2 Free bulton-check spring and
bulton stuck open (in) pressure switch alignment
3 Pressure switch burned out 3 Replace pressure switch
4 Starting switch in motor bad 4 Install new starting switch
5 Motor burned out 5 Replace motor
6 Circuit breaker kicked out 6 Allow to re- set Replace it or faulty circuit breaker will not
automatically re-set
Motor runs-cam drive plate 1 Loose cam drive plate 1 Tighten set screw in cam will not turn drive plate Check woodruff key
2 Gear stripped 2 Replace gear
Pump will not shut off Mix 1 Pressure swilch actuating 1 Free button-check pressure shoots out pressure relief bulton stuck closed (out) switch alignment
2 Pressure switch stuck in 2 Replace pressure switch closed position
3 Pressure switch assy out 3 Using pressure gauge adjust of adjustment pressure
4 Dirty or plugged diaphragm 4 Disassemble and clean housing (Ref 42) housing
5 Defective O-Ring on 5 Replace O-Ring pressure relief piston
Pump will not prime 1 Insufficient supply of mix 1 Replenish mix supply
2 Piston O-ring defective-no 2 Replace piston O-Ring and suction lubricate
3 Washer valve not sealing 3 Replace washer valve DO NOT LUBRICATE
Pump primes No pressure in 1 Sleeve (Rei 29) not sealing 1 Replace sleeve DO NOT cylinder properly LUBRICATE
2 Loose hose connection on 2 Install or tighten hose clamp pump valve housing (Ref 27)
Mix shoots out Of air intake line 1 Washer valve (Ref 25) 1 Replace washer valve-DO not sealing properly NOT LUBRICATE
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOfT SERVE bull SHAKE bull SLUSH
47
48
TROUBLE-SHOOTING DPR PUMP
Too much air overrun too high-popping problems
Product dispenses slowly out of disPenSing head
1 Air meter too large (Ref 45)
2 Air leak befween mix conshytainer and mix inlet
3 Air line hose crackedshysucking air (Ref 44)
4 Pump pressure too lowshycylinder not full
1 Pump pressure too low
2 PrOduct too cold
3 Low overrun
Diaphragm housing leaking mix 1 Diaphragm housing loose
2 Diaphragm defective
Piston drive assy noisy 1 Bushing bearing worn
2 Defective gear in gear motor
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SIfAKE bull SLUSH
REMEDY
1 Replace washer valve-DO NOT LUBRICATE
2 Install clamp on hose
1 Replace O-Ring and LUBRIshyCATE
1 Clean or replace air meter
2 Replace tube
1 Install smaller air meier
2 Repair as needed
3 Replace air line hose
4 Using pressure gauge adjust pressure switch
1 Using pressure gauge adjust pump pressure
2 Check product temperatureshyshould be about 18 F
3 Check meter-if plugged-clean
1 Tighten wing nuls (Ref 41)
2 Replace diaphragm (Ref 43)
1 Replace bushing bearing (Ref 19)
2 Replace gear
TROUBLE
Mix inlet hose loses prime
Mix on top of piston
PROBABLE CAUSE
1 Washer valve (Ref 25) not sealing properly
2 Mix inlet hose loose
1 Piston O-Ring leaking (Ref 22)
No Air (Overrun) 11 Ai r meter plugged (Ref I 45)
2 Curved air tube pinched
--
DPR PUMP aI
PART NO 199019(i) PART NO 199020 reg DIAPHRAGM RUBBER SLEEVE
PART NO159295 PART NO 159282reg O-RING O-RING0
PART NO 160581reg O-RING
o PART NO PART NO
PART NO199011() 160611(8) 160582 WASHER VALVE O-RING O-RING
PISTON
cJ
DIAPHRAGM HOUSING
CYLINDER
VALVE HOUSIN6 ASSEMBLY
PUUPOUTLET
DRAIN PORT
I PHNO309-755-4553 O-RING CHART HCDUKEampSONINC I
1 I84Z08 SOFT SERVE DISPENSING HEADS I
o PART NO 1605620
PAR~159--1b
PART NO PART NO 1605841 59295()
I PHNO 309-755-4553 O-R ING CHART HCDUKEampSONINC I
- Cover
- Table of Contents
- Safety
- Uncrating amp Inspection13
- Explanation of Electrical Controls
- Operation of Machine
- General Information
- Maintenance amp Adjustment
- Parts Breakdowns
- Trouble-Shooting Charts
- O-ring Charts
-
CAB DPR PUMP BREAKDOWN
REF PART No DESCRIPTION REF PART No DESCRIPTION 1 196091 Pump Base 46 114009 Pump Cover 2 136088 Pump Support 47 113464 Base Bracket Assembly 3 150784 Strain Relief Bushing 48 135725 Stud 1-78 4 Power Cord 49 160131 516 Flatwasher 5 160075 10-24 x 38 Screw 50 160293 Speed Clip 6 135416 Cover Electric Box 51 135724 Button 7 160141 14 Lockwasher 52 160140 10 Lockwasher 8 160491 14-20 x 34 Socket Screw 53 135726 Stud 3 9 113497 Motor Cord 18-3 SJT 54 160109 10-24 Hex Nut 10 151127 Motor 40 RPM Soft Serve 55 135729 Switch Actuator 11 160023 14-20 x 1 Screw 56 135731 Stop - Max Pressure 12 153317 Half Moon Key 57 162315 Spring - Soft Serve 13 112925 Cam Drive Plate Assembly 58 160138 10 Flat Washer 14 160495 14-20 x 14 Set Screw 59 160304 10-24 Stop Nut 15 160369 Pin 60 150456 Pressure Switch 16 134614 Swing Clamp 61 135744 Insulator - Fiber 17 134521 Adjusting Clamp 62 160381 6-32 x 1 Socket Screw 18 160488 Thumb Screw 63 160393 6 Flatwasher 19 134604 Bearing Bushing 64 160146 6 Lockwasher 20 134602 Connecting Rod 65 160309 6-32 Hex Nut 21 134601 Piston 66 160006 6-32 x 14 Screw 22 159295 O-Ring 67 160001 8-32 x 38 Screw 23 134603 Wrist Pin 68 160470 8 Lockwasher 24 136089 Cylinder 69 150481 Circuit Breaker 25 199011 Washer Valve 70 135727 Switch Bracket 26 159282 O-Ring 71 136311 Spacer - Cover Switch 27 113839 Pump Valve Housing 72 160028 Truss Head Screw
Assembly (Metal) 14-20 x 34 SST 28 160582 O-Ring 73 160141 Lockwasher 14 29 199020 Sleeve Rubber 74 160104 Hex Nut 14-20 30 135793 Retainer Clip 75 136312 Button Guard 31 135791 Adapter Hose Outlet 76 160020 Hex Hd Cap Screw 32 160581 O-Ring 14-20 x 1 SST 33 135790 Piston 77 113869 Switch Bracket 34 162308 Spring Soft Serve 78 136110 Button Cover Switch 35 135792 Drain Port 79 162314 Spring 36 160611 O-Ring 80 150456 Switch Pump Safety 37 135896 Hose 24 81 135004 Switch Cover 38 160738 Hose Clamp 82 160296 Screw RH 39 136288 Keeper 6-32 x 1-14 40 160554 O-Ring 83 160146 Lockwasher 6 41 160368 Wing Nut Int Tooth 42 130054 Diaphragm Housing 84 160393 Flatwasher 6 43 199019 Diaphragm 85 160309 Hex Nut 6-32 44 196074 Air Tube-Curved 86 114572 Hose Clamp 45 163433 Air Meter - 20 87 160048 14-20 x 12 TRHM
(other sizes available) 88 160308 6-32 x 516 RDHM 89 114581 Circuit Breaker Bracket
Not Shown 90 163109 Stop Pivot 112791 DPR Pressure Gauge
41
Mfg by H C DUKE amp SON INC 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
42
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Unit does not operate 1 Fuse blown at main disconshy 1 Check fuse size check for low nect voltage if not within 10 of
nameplate rating install transformer or call power company
2 Beater motor out on overload 2 Press starter reset button and check for low voltage Check producllemperalure and overrun
3 Disconnected or broken wife 3 Check wiring and wire connecshyin electrical circuit lions repair or replace lead
wires as necessary
4 Faulty selector switch 4 Replace selector switch
5 Out on high pressure 5 Check for low waler supply or dirty air conden ser
6 Out on low pressure 6 Check limit control and freon charge
Compressor does not operate f Troubte in compressor con- I Refer to Trouble-Shootingshyor operates improperly densing circuit Compressor I Condensing
Circuit
2 Faulty capacitor assembly 2 Replace capaCitor assembly (Single phase only)
3 Faulty contactor 3 Replace contaclOr or pOints
Compressor operates but 1 Loose con neclion at motor 1 Tighten connection beater motor does not starter coil (electrical box)
2 Open starter coil 2 Replace coil
3 Faulty capacitor assembly 3 Replace capaCitor assembly (Single phase only)
Dispensed product too hard 1 Cylinder themostat erratic 1 Adjust thermo slat or replace or set too low
2 Faulty time delay relay 2 Replace time delay relay
3 Solenoid valve leaking 3 Replace solenoid valve
4 Low suction pressure 4 See chart on page 15 for adshyjustments
Leaking of mix from rear housshy 1 Damaged bealer shalt seal 1 Replace shaft seal or O-ring ing discharge tube to drip tray inside seal assy
Mig by H C DUKE amp SON INC bull 2116 Eighlh Avenue Easl Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Mix leaking at dispensing head 1 Faulty 4 O-Ring
2 Head not properly installed
1 Replace 4 O-Ring
2 Install head properly
Mix sours in cabinet 1 Cabinet thermostat setting too high
2 Cabinet thermostat detective
3 Cabinet solenoid valve deshyfective
4 Cabinet switch defective
5 Beater motor out on overshyload (cab side)
1 Adjust thermostat
2 Replace thermostat
3 Replace coil or solenoid
4 Replace cabinet switch
S Reset overload for beater motor See pg 42 unit does not operate
Cabinet too COld
Machine runs continually and Product continues to get colder
Compressor operates only when dispensing
Unit runs conMuously Product does nol reach 180 F temperature
6 Door sWitch defectIVe
1 Cabinet thermostat setting too low
2 Defective thermostat
3 Cabinet solenoid stuck open
4 Cabinet expansion valve set too low
1 Plunger switch out of adjustshyment
2 Su ction pressure too low
3 Defective plunger switch
4 Plunger switch rod engaged
5 Faulty time delay relay
6 Starter or relay contacts stuck
7 Faulty thermostat or bulb not deep enough in well
6 Replace door SWitch
1 Adjust thermostat
2 Replace thermostat
3 Replace solenoid
4 Adjust cabinet expansion valve (See pg 15)
1 Adjust plunger switch
2 Adjust expansion valve and check freon charge
3 Replace plunger switch
4 Close plunger completely
5 Replace time delay relay
I 6 Check contacts i
7 Check bulb location or replace thermostat
1 Cylinder themostat setting 1 Adjust thermostat or replace too high or thermostat deshyfective
1 Trouble in compressor I condensing system
2 ExpanSion valve setiing is too high
3 Low on refrigeranl
1 See Trouble-Shooling-CompressorI Condensing circuit
2 Adjust expansion valve
3 Check and repair leak and recharge
1
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE SLUSHbull
43
44
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Dispensed product too soft (Product temperature above 21 0 F)
1 Automatic expansion yalve incorrectly set or erratic in operation
-2 Leak in refrigeration system
resulting in little or no refrigeration
1 Adjust or replace expanSion valve
2 Pump down system or remove refrigerant charge repair leak evacuate and recharge
3 Excessive oil in system 3 Drain compressor to proper oil leyel pump down and flush system
4 Thermostat set too high taulty
or 4 Adiust thermostat or replace
Product dispenses slOWly out dispensing head
1 Reverse rotation 1 Change rotation to clockshywise from front of freezer
2 Dispensing speed adjustshyment boll too far down
2 Adjust bolt upward
3 Pum p problem 3 See pump Trouble-Shooting chart
4 Product too cold 4 See dispensed product too hard pg42
TROUBLE-SHOOTING CHART COMPRESSORICONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor will not start -hums intermittently (cycling on oyerload)
1 Improperly wired
2 Low line Yoltage
3 Open starting capacitor (single phase only)
4 High discharge pressure
1 Check wiring against diagram
2 Ask power company to increase YOltage to not less than 10 below nameplate rating or install transformer Check for inadequate wire size
3 Replace starting capacitor
4 CheCK water regulating valve setting Check water or air condenser and clean if necessary Make sure disshycharge shut-oft valve is open
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor starts but remains 1 Low line voltage 1 Ask power company to in start windings increase voltage to not less (Single phase only) than 10 below nameplate
rating or install transrormer
2 Improperly wired 2 Check wiring against drawing Check wire size
3 Running capacitor shorted 3 Check by disconnecting running capacitor
4 Starting capacitor weak 4 Check capacitor replace
5 High disCharge pressure 5 Check water regulating valve check water or air condenser and clean il necessary Check discharge shut-off valve
Starter burned out 1 Low line voltage 1 Ask power company to inshycrease voltage to not less than 10 below nameplate rating or install transformer
2 Excessive line voltage 2 Ask power company to reduce voltage to maximum of 10 over nameplate rating
Starting capacitors burn out 1 Voltage 100 low 1 Ask power company to (Single phase only) increase voltage to not less
than 10 below nameplate rating or install translonmer
2 Improper capacitor 2 Replace capacitor with properly rated capacitor as listed in manual
Running capacitors burn out 1 Excessive line voltage 1 Ask power company to reshy(Single phase only) duce line voltage to not more
than 10 above rating 01 motor
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
45
46
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Unit operates long or continuously
1 Shortage of gas
2 Dirty condenser
3 Moisture in system
4 Compressor failing
1 Repair leak and recharge
2 Clean condenser
3 Evacuate and recharge system
4 Check compressor lor proper pressures If inadequate replace compressor
Head pressure too high 1 Refrigerant overcharge
2 Air in system
3 Dirty condenser (air cooled)
4 Unit location too warm (air cooled)
5 Restricted water cooled condenser
6 Water turned off or defective
1 Purge system
2 Purge system evacuate and recharge
3 Clean condenser
4 Relocate unIt away from restriction Place nothing against back or on top of unit
5 Clean or replace condenser
6 Turn on water Or replace water regulating valve regulating valve
Head pressure too low 1 Shortage 01 refrigerant 1 Repair leak and recharge
2 Water regulating valve open 2 Adjust regulating valve too wide
Water 1I0wing through water 1 Water regulating valve 1 Replace water regulating valve waste line when unit is not in operation
defective
Noisy compressor 1 Tubing raUle 1 Bend tubes away from contact
NOTE Refer to warranty card prior to compressor replacement
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING DPR PUMP
TROUBLE PROBABLE CAUSE REMEDY
Pump will not run 1 Pump cover removed 1 Install pump cover
2 Pressure switch actuating 2 Free bulton-check spring and
bulton stuck open (in) pressure switch alignment
3 Pressure switch burned out 3 Replace pressure switch
4 Starting switch in motor bad 4 Install new starting switch
5 Motor burned out 5 Replace motor
6 Circuit breaker kicked out 6 Allow to re- set Replace it or faulty circuit breaker will not
automatically re-set
Motor runs-cam drive plate 1 Loose cam drive plate 1 Tighten set screw in cam will not turn drive plate Check woodruff key
2 Gear stripped 2 Replace gear
Pump will not shut off Mix 1 Pressure swilch actuating 1 Free button-check pressure shoots out pressure relief bulton stuck closed (out) switch alignment
2 Pressure switch stuck in 2 Replace pressure switch closed position
3 Pressure switch assy out 3 Using pressure gauge adjust of adjustment pressure
4 Dirty or plugged diaphragm 4 Disassemble and clean housing (Ref 42) housing
5 Defective O-Ring on 5 Replace O-Ring pressure relief piston
Pump will not prime 1 Insufficient supply of mix 1 Replenish mix supply
2 Piston O-ring defective-no 2 Replace piston O-Ring and suction lubricate
3 Washer valve not sealing 3 Replace washer valve DO NOT LUBRICATE
Pump primes No pressure in 1 Sleeve (Rei 29) not sealing 1 Replace sleeve DO NOT cylinder properly LUBRICATE
2 Loose hose connection on 2 Install or tighten hose clamp pump valve housing (Ref 27)
Mix shoots out Of air intake line 1 Washer valve (Ref 25) 1 Replace washer valve-DO not sealing properly NOT LUBRICATE
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOfT SERVE bull SHAKE bull SLUSH
47
48
TROUBLE-SHOOTING DPR PUMP
Too much air overrun too high-popping problems
Product dispenses slowly out of disPenSing head
1 Air meter too large (Ref 45)
2 Air leak befween mix conshytainer and mix inlet
3 Air line hose crackedshysucking air (Ref 44)
4 Pump pressure too lowshycylinder not full
1 Pump pressure too low
2 PrOduct too cold
3 Low overrun
Diaphragm housing leaking mix 1 Diaphragm housing loose
2 Diaphragm defective
Piston drive assy noisy 1 Bushing bearing worn
2 Defective gear in gear motor
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SIfAKE bull SLUSH
REMEDY
1 Replace washer valve-DO NOT LUBRICATE
2 Install clamp on hose
1 Replace O-Ring and LUBRIshyCATE
1 Clean or replace air meter
2 Replace tube
1 Install smaller air meier
2 Repair as needed
3 Replace air line hose
4 Using pressure gauge adjust pressure switch
1 Using pressure gauge adjust pump pressure
2 Check product temperatureshyshould be about 18 F
3 Check meter-if plugged-clean
1 Tighten wing nuls (Ref 41)
2 Replace diaphragm (Ref 43)
1 Replace bushing bearing (Ref 19)
2 Replace gear
TROUBLE
Mix inlet hose loses prime
Mix on top of piston
PROBABLE CAUSE
1 Washer valve (Ref 25) not sealing properly
2 Mix inlet hose loose
1 Piston O-Ring leaking (Ref 22)
No Air (Overrun) 11 Ai r meter plugged (Ref I 45)
2 Curved air tube pinched
--
DPR PUMP aI
PART NO 199019(i) PART NO 199020 reg DIAPHRAGM RUBBER SLEEVE
PART NO159295 PART NO 159282reg O-RING O-RING0
PART NO 160581reg O-RING
o PART NO PART NO
PART NO199011() 160611(8) 160582 WASHER VALVE O-RING O-RING
PISTON
cJ
DIAPHRAGM HOUSING
CYLINDER
VALVE HOUSIN6 ASSEMBLY
PUUPOUTLET
DRAIN PORT
I PHNO309-755-4553 O-RING CHART HCDUKEampSONINC I
1 I84Z08 SOFT SERVE DISPENSING HEADS I
o PART NO 1605620
PAR~159--1b
PART NO PART NO 1605841 59295()
I PHNO 309-755-4553 O-R ING CHART HCDUKEampSONINC I
- Cover
- Table of Contents
- Safety
- Uncrating amp Inspection13
- Explanation of Electrical Controls
- Operation of Machine
- General Information
- Maintenance amp Adjustment
- Parts Breakdowns
- Trouble-Shooting Charts
- O-ring Charts
-
42
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Unit does not operate 1 Fuse blown at main disconshy 1 Check fuse size check for low nect voltage if not within 10 of
nameplate rating install transformer or call power company
2 Beater motor out on overload 2 Press starter reset button and check for low voltage Check producllemperalure and overrun
3 Disconnected or broken wife 3 Check wiring and wire connecshyin electrical circuit lions repair or replace lead
wires as necessary
4 Faulty selector switch 4 Replace selector switch
5 Out on high pressure 5 Check for low waler supply or dirty air conden ser
6 Out on low pressure 6 Check limit control and freon charge
Compressor does not operate f Troubte in compressor con- I Refer to Trouble-Shootingshyor operates improperly densing circuit Compressor I Condensing
Circuit
2 Faulty capacitor assembly 2 Replace capaCitor assembly (Single phase only)
3 Faulty contactor 3 Replace contaclOr or pOints
Compressor operates but 1 Loose con neclion at motor 1 Tighten connection beater motor does not starter coil (electrical box)
2 Open starter coil 2 Replace coil
3 Faulty capacitor assembly 3 Replace capaCitor assembly (Single phase only)
Dispensed product too hard 1 Cylinder themostat erratic 1 Adjust thermo slat or replace or set too low
2 Faulty time delay relay 2 Replace time delay relay
3 Solenoid valve leaking 3 Replace solenoid valve
4 Low suction pressure 4 See chart on page 15 for adshyjustments
Leaking of mix from rear housshy 1 Damaged bealer shalt seal 1 Replace shaft seal or O-ring ing discharge tube to drip tray inside seal assy
Mig by H C DUKE amp SON INC bull 2116 Eighlh Avenue Easl Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Mix leaking at dispensing head 1 Faulty 4 O-Ring
2 Head not properly installed
1 Replace 4 O-Ring
2 Install head properly
Mix sours in cabinet 1 Cabinet thermostat setting too high
2 Cabinet thermostat detective
3 Cabinet solenoid valve deshyfective
4 Cabinet switch defective
5 Beater motor out on overshyload (cab side)
1 Adjust thermostat
2 Replace thermostat
3 Replace coil or solenoid
4 Replace cabinet switch
S Reset overload for beater motor See pg 42 unit does not operate
Cabinet too COld
Machine runs continually and Product continues to get colder
Compressor operates only when dispensing
Unit runs conMuously Product does nol reach 180 F temperature
6 Door sWitch defectIVe
1 Cabinet thermostat setting too low
2 Defective thermostat
3 Cabinet solenoid stuck open
4 Cabinet expansion valve set too low
1 Plunger switch out of adjustshyment
2 Su ction pressure too low
3 Defective plunger switch
4 Plunger switch rod engaged
5 Faulty time delay relay
6 Starter or relay contacts stuck
7 Faulty thermostat or bulb not deep enough in well
6 Replace door SWitch
1 Adjust thermostat
2 Replace thermostat
3 Replace solenoid
4 Adjust cabinet expansion valve (See pg 15)
1 Adjust plunger switch
2 Adjust expansion valve and check freon charge
3 Replace plunger switch
4 Close plunger completely
5 Replace time delay relay
I 6 Check contacts i
7 Check bulb location or replace thermostat
1 Cylinder themostat setting 1 Adjust thermostat or replace too high or thermostat deshyfective
1 Trouble in compressor I condensing system
2 ExpanSion valve setiing is too high
3 Low on refrigeranl
1 See Trouble-Shooling-CompressorI Condensing circuit
2 Adjust expansion valve
3 Check and repair leak and recharge
1
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE SLUSHbull
43
44
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Dispensed product too soft (Product temperature above 21 0 F)
1 Automatic expansion yalve incorrectly set or erratic in operation
-2 Leak in refrigeration system
resulting in little or no refrigeration
1 Adjust or replace expanSion valve
2 Pump down system or remove refrigerant charge repair leak evacuate and recharge
3 Excessive oil in system 3 Drain compressor to proper oil leyel pump down and flush system
4 Thermostat set too high taulty
or 4 Adiust thermostat or replace
Product dispenses slOWly out dispensing head
1 Reverse rotation 1 Change rotation to clockshywise from front of freezer
2 Dispensing speed adjustshyment boll too far down
2 Adjust bolt upward
3 Pum p problem 3 See pump Trouble-Shooting chart
4 Product too cold 4 See dispensed product too hard pg42
TROUBLE-SHOOTING CHART COMPRESSORICONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor will not start -hums intermittently (cycling on oyerload)
1 Improperly wired
2 Low line Yoltage
3 Open starting capacitor (single phase only)
4 High discharge pressure
1 Check wiring against diagram
2 Ask power company to increase YOltage to not less than 10 below nameplate rating or install transformer Check for inadequate wire size
3 Replace starting capacitor
4 CheCK water regulating valve setting Check water or air condenser and clean if necessary Make sure disshycharge shut-oft valve is open
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor starts but remains 1 Low line voltage 1 Ask power company to in start windings increase voltage to not less (Single phase only) than 10 below nameplate
rating or install transrormer
2 Improperly wired 2 Check wiring against drawing Check wire size
3 Running capacitor shorted 3 Check by disconnecting running capacitor
4 Starting capacitor weak 4 Check capacitor replace
5 High disCharge pressure 5 Check water regulating valve check water or air condenser and clean il necessary Check discharge shut-off valve
Starter burned out 1 Low line voltage 1 Ask power company to inshycrease voltage to not less than 10 below nameplate rating or install transformer
2 Excessive line voltage 2 Ask power company to reduce voltage to maximum of 10 over nameplate rating
Starting capacitors burn out 1 Voltage 100 low 1 Ask power company to (Single phase only) increase voltage to not less
than 10 below nameplate rating or install translonmer
2 Improper capacitor 2 Replace capacitor with properly rated capacitor as listed in manual
Running capacitors burn out 1 Excessive line voltage 1 Ask power company to reshy(Single phase only) duce line voltage to not more
than 10 above rating 01 motor
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
45
46
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Unit operates long or continuously
1 Shortage of gas
2 Dirty condenser
3 Moisture in system
4 Compressor failing
1 Repair leak and recharge
2 Clean condenser
3 Evacuate and recharge system
4 Check compressor lor proper pressures If inadequate replace compressor
Head pressure too high 1 Refrigerant overcharge
2 Air in system
3 Dirty condenser (air cooled)
4 Unit location too warm (air cooled)
5 Restricted water cooled condenser
6 Water turned off or defective
1 Purge system
2 Purge system evacuate and recharge
3 Clean condenser
4 Relocate unIt away from restriction Place nothing against back or on top of unit
5 Clean or replace condenser
6 Turn on water Or replace water regulating valve regulating valve
Head pressure too low 1 Shortage 01 refrigerant 1 Repair leak and recharge
2 Water regulating valve open 2 Adjust regulating valve too wide
Water 1I0wing through water 1 Water regulating valve 1 Replace water regulating valve waste line when unit is not in operation
defective
Noisy compressor 1 Tubing raUle 1 Bend tubes away from contact
NOTE Refer to warranty card prior to compressor replacement
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING DPR PUMP
TROUBLE PROBABLE CAUSE REMEDY
Pump will not run 1 Pump cover removed 1 Install pump cover
2 Pressure switch actuating 2 Free bulton-check spring and
bulton stuck open (in) pressure switch alignment
3 Pressure switch burned out 3 Replace pressure switch
4 Starting switch in motor bad 4 Install new starting switch
5 Motor burned out 5 Replace motor
6 Circuit breaker kicked out 6 Allow to re- set Replace it or faulty circuit breaker will not
automatically re-set
Motor runs-cam drive plate 1 Loose cam drive plate 1 Tighten set screw in cam will not turn drive plate Check woodruff key
2 Gear stripped 2 Replace gear
Pump will not shut off Mix 1 Pressure swilch actuating 1 Free button-check pressure shoots out pressure relief bulton stuck closed (out) switch alignment
2 Pressure switch stuck in 2 Replace pressure switch closed position
3 Pressure switch assy out 3 Using pressure gauge adjust of adjustment pressure
4 Dirty or plugged diaphragm 4 Disassemble and clean housing (Ref 42) housing
5 Defective O-Ring on 5 Replace O-Ring pressure relief piston
Pump will not prime 1 Insufficient supply of mix 1 Replenish mix supply
2 Piston O-ring defective-no 2 Replace piston O-Ring and suction lubricate
3 Washer valve not sealing 3 Replace washer valve DO NOT LUBRICATE
Pump primes No pressure in 1 Sleeve (Rei 29) not sealing 1 Replace sleeve DO NOT cylinder properly LUBRICATE
2 Loose hose connection on 2 Install or tighten hose clamp pump valve housing (Ref 27)
Mix shoots out Of air intake line 1 Washer valve (Ref 25) 1 Replace washer valve-DO not sealing properly NOT LUBRICATE
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOfT SERVE bull SHAKE bull SLUSH
47
48
TROUBLE-SHOOTING DPR PUMP
Too much air overrun too high-popping problems
Product dispenses slowly out of disPenSing head
1 Air meter too large (Ref 45)
2 Air leak befween mix conshytainer and mix inlet
3 Air line hose crackedshysucking air (Ref 44)
4 Pump pressure too lowshycylinder not full
1 Pump pressure too low
2 PrOduct too cold
3 Low overrun
Diaphragm housing leaking mix 1 Diaphragm housing loose
2 Diaphragm defective
Piston drive assy noisy 1 Bushing bearing worn
2 Defective gear in gear motor
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SIfAKE bull SLUSH
REMEDY
1 Replace washer valve-DO NOT LUBRICATE
2 Install clamp on hose
1 Replace O-Ring and LUBRIshyCATE
1 Clean or replace air meter
2 Replace tube
1 Install smaller air meier
2 Repair as needed
3 Replace air line hose
4 Using pressure gauge adjust pressure switch
1 Using pressure gauge adjust pump pressure
2 Check product temperatureshyshould be about 18 F
3 Check meter-if plugged-clean
1 Tighten wing nuls (Ref 41)
2 Replace diaphragm (Ref 43)
1 Replace bushing bearing (Ref 19)
2 Replace gear
TROUBLE
Mix inlet hose loses prime
Mix on top of piston
PROBABLE CAUSE
1 Washer valve (Ref 25) not sealing properly
2 Mix inlet hose loose
1 Piston O-Ring leaking (Ref 22)
No Air (Overrun) 11 Ai r meter plugged (Ref I 45)
2 Curved air tube pinched
--
DPR PUMP aI
PART NO 199019(i) PART NO 199020 reg DIAPHRAGM RUBBER SLEEVE
PART NO159295 PART NO 159282reg O-RING O-RING0
PART NO 160581reg O-RING
o PART NO PART NO
PART NO199011() 160611(8) 160582 WASHER VALVE O-RING O-RING
PISTON
cJ
DIAPHRAGM HOUSING
CYLINDER
VALVE HOUSIN6 ASSEMBLY
PUUPOUTLET
DRAIN PORT
I PHNO309-755-4553 O-RING CHART HCDUKEampSONINC I
1 I84Z08 SOFT SERVE DISPENSING HEADS I
o PART NO 1605620
PAR~159--1b
PART NO PART NO 1605841 59295()
I PHNO 309-755-4553 O-R ING CHART HCDUKEampSONINC I
- Cover
- Table of Contents
- Safety
- Uncrating amp Inspection13
- Explanation of Electrical Controls
- Operation of Machine
- General Information
- Maintenance amp Adjustment
- Parts Breakdowns
- Trouble-Shooting Charts
- O-ring Charts
-
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Mix leaking at dispensing head 1 Faulty 4 O-Ring
2 Head not properly installed
1 Replace 4 O-Ring
2 Install head properly
Mix sours in cabinet 1 Cabinet thermostat setting too high
2 Cabinet thermostat detective
3 Cabinet solenoid valve deshyfective
4 Cabinet switch defective
5 Beater motor out on overshyload (cab side)
1 Adjust thermostat
2 Replace thermostat
3 Replace coil or solenoid
4 Replace cabinet switch
S Reset overload for beater motor See pg 42 unit does not operate
Cabinet too COld
Machine runs continually and Product continues to get colder
Compressor operates only when dispensing
Unit runs conMuously Product does nol reach 180 F temperature
6 Door sWitch defectIVe
1 Cabinet thermostat setting too low
2 Defective thermostat
3 Cabinet solenoid stuck open
4 Cabinet expansion valve set too low
1 Plunger switch out of adjustshyment
2 Su ction pressure too low
3 Defective plunger switch
4 Plunger switch rod engaged
5 Faulty time delay relay
6 Starter or relay contacts stuck
7 Faulty thermostat or bulb not deep enough in well
6 Replace door SWitch
1 Adjust thermostat
2 Replace thermostat
3 Replace solenoid
4 Adjust cabinet expansion valve (See pg 15)
1 Adjust plunger switch
2 Adjust expansion valve and check freon charge
3 Replace plunger switch
4 Close plunger completely
5 Replace time delay relay
I 6 Check contacts i
7 Check bulb location or replace thermostat
1 Cylinder themostat setting 1 Adjust thermostat or replace too high or thermostat deshyfective
1 Trouble in compressor I condensing system
2 ExpanSion valve setiing is too high
3 Low on refrigeranl
1 See Trouble-Shooling-CompressorI Condensing circuit
2 Adjust expansion valve
3 Check and repair leak and recharge
1
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE SLUSHbull
43
44
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Dispensed product too soft (Product temperature above 21 0 F)
1 Automatic expansion yalve incorrectly set or erratic in operation
-2 Leak in refrigeration system
resulting in little or no refrigeration
1 Adjust or replace expanSion valve
2 Pump down system or remove refrigerant charge repair leak evacuate and recharge
3 Excessive oil in system 3 Drain compressor to proper oil leyel pump down and flush system
4 Thermostat set too high taulty
or 4 Adiust thermostat or replace
Product dispenses slOWly out dispensing head
1 Reverse rotation 1 Change rotation to clockshywise from front of freezer
2 Dispensing speed adjustshyment boll too far down
2 Adjust bolt upward
3 Pum p problem 3 See pump Trouble-Shooting chart
4 Product too cold 4 See dispensed product too hard pg42
TROUBLE-SHOOTING CHART COMPRESSORICONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor will not start -hums intermittently (cycling on oyerload)
1 Improperly wired
2 Low line Yoltage
3 Open starting capacitor (single phase only)
4 High discharge pressure
1 Check wiring against diagram
2 Ask power company to increase YOltage to not less than 10 below nameplate rating or install transformer Check for inadequate wire size
3 Replace starting capacitor
4 CheCK water regulating valve setting Check water or air condenser and clean if necessary Make sure disshycharge shut-oft valve is open
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor starts but remains 1 Low line voltage 1 Ask power company to in start windings increase voltage to not less (Single phase only) than 10 below nameplate
rating or install transrormer
2 Improperly wired 2 Check wiring against drawing Check wire size
3 Running capacitor shorted 3 Check by disconnecting running capacitor
4 Starting capacitor weak 4 Check capacitor replace
5 High disCharge pressure 5 Check water regulating valve check water or air condenser and clean il necessary Check discharge shut-off valve
Starter burned out 1 Low line voltage 1 Ask power company to inshycrease voltage to not less than 10 below nameplate rating or install transformer
2 Excessive line voltage 2 Ask power company to reduce voltage to maximum of 10 over nameplate rating
Starting capacitors burn out 1 Voltage 100 low 1 Ask power company to (Single phase only) increase voltage to not less
than 10 below nameplate rating or install translonmer
2 Improper capacitor 2 Replace capacitor with properly rated capacitor as listed in manual
Running capacitors burn out 1 Excessive line voltage 1 Ask power company to reshy(Single phase only) duce line voltage to not more
than 10 above rating 01 motor
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
45
46
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Unit operates long or continuously
1 Shortage of gas
2 Dirty condenser
3 Moisture in system
4 Compressor failing
1 Repair leak and recharge
2 Clean condenser
3 Evacuate and recharge system
4 Check compressor lor proper pressures If inadequate replace compressor
Head pressure too high 1 Refrigerant overcharge
2 Air in system
3 Dirty condenser (air cooled)
4 Unit location too warm (air cooled)
5 Restricted water cooled condenser
6 Water turned off or defective
1 Purge system
2 Purge system evacuate and recharge
3 Clean condenser
4 Relocate unIt away from restriction Place nothing against back or on top of unit
5 Clean or replace condenser
6 Turn on water Or replace water regulating valve regulating valve
Head pressure too low 1 Shortage 01 refrigerant 1 Repair leak and recharge
2 Water regulating valve open 2 Adjust regulating valve too wide
Water 1I0wing through water 1 Water regulating valve 1 Replace water regulating valve waste line when unit is not in operation
defective
Noisy compressor 1 Tubing raUle 1 Bend tubes away from contact
NOTE Refer to warranty card prior to compressor replacement
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING DPR PUMP
TROUBLE PROBABLE CAUSE REMEDY
Pump will not run 1 Pump cover removed 1 Install pump cover
2 Pressure switch actuating 2 Free bulton-check spring and
bulton stuck open (in) pressure switch alignment
3 Pressure switch burned out 3 Replace pressure switch
4 Starting switch in motor bad 4 Install new starting switch
5 Motor burned out 5 Replace motor
6 Circuit breaker kicked out 6 Allow to re- set Replace it or faulty circuit breaker will not
automatically re-set
Motor runs-cam drive plate 1 Loose cam drive plate 1 Tighten set screw in cam will not turn drive plate Check woodruff key
2 Gear stripped 2 Replace gear
Pump will not shut off Mix 1 Pressure swilch actuating 1 Free button-check pressure shoots out pressure relief bulton stuck closed (out) switch alignment
2 Pressure switch stuck in 2 Replace pressure switch closed position
3 Pressure switch assy out 3 Using pressure gauge adjust of adjustment pressure
4 Dirty or plugged diaphragm 4 Disassemble and clean housing (Ref 42) housing
5 Defective O-Ring on 5 Replace O-Ring pressure relief piston
Pump will not prime 1 Insufficient supply of mix 1 Replenish mix supply
2 Piston O-ring defective-no 2 Replace piston O-Ring and suction lubricate
3 Washer valve not sealing 3 Replace washer valve DO NOT LUBRICATE
Pump primes No pressure in 1 Sleeve (Rei 29) not sealing 1 Replace sleeve DO NOT cylinder properly LUBRICATE
2 Loose hose connection on 2 Install or tighten hose clamp pump valve housing (Ref 27)
Mix shoots out Of air intake line 1 Washer valve (Ref 25) 1 Replace washer valve-DO not sealing properly NOT LUBRICATE
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOfT SERVE bull SHAKE bull SLUSH
47
48
TROUBLE-SHOOTING DPR PUMP
Too much air overrun too high-popping problems
Product dispenses slowly out of disPenSing head
1 Air meter too large (Ref 45)
2 Air leak befween mix conshytainer and mix inlet
3 Air line hose crackedshysucking air (Ref 44)
4 Pump pressure too lowshycylinder not full
1 Pump pressure too low
2 PrOduct too cold
3 Low overrun
Diaphragm housing leaking mix 1 Diaphragm housing loose
2 Diaphragm defective
Piston drive assy noisy 1 Bushing bearing worn
2 Defective gear in gear motor
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SIfAKE bull SLUSH
REMEDY
1 Replace washer valve-DO NOT LUBRICATE
2 Install clamp on hose
1 Replace O-Ring and LUBRIshyCATE
1 Clean or replace air meter
2 Replace tube
1 Install smaller air meier
2 Repair as needed
3 Replace air line hose
4 Using pressure gauge adjust pressure switch
1 Using pressure gauge adjust pump pressure
2 Check product temperatureshyshould be about 18 F
3 Check meter-if plugged-clean
1 Tighten wing nuls (Ref 41)
2 Replace diaphragm (Ref 43)
1 Replace bushing bearing (Ref 19)
2 Replace gear
TROUBLE
Mix inlet hose loses prime
Mix on top of piston
PROBABLE CAUSE
1 Washer valve (Ref 25) not sealing properly
2 Mix inlet hose loose
1 Piston O-Ring leaking (Ref 22)
No Air (Overrun) 11 Ai r meter plugged (Ref I 45)
2 Curved air tube pinched
--
DPR PUMP aI
PART NO 199019(i) PART NO 199020 reg DIAPHRAGM RUBBER SLEEVE
PART NO159295 PART NO 159282reg O-RING O-RING0
PART NO 160581reg O-RING
o PART NO PART NO
PART NO199011() 160611(8) 160582 WASHER VALVE O-RING O-RING
PISTON
cJ
DIAPHRAGM HOUSING
CYLINDER
VALVE HOUSIN6 ASSEMBLY
PUUPOUTLET
DRAIN PORT
I PHNO309-755-4553 O-RING CHART HCDUKEampSONINC I
1 I84Z08 SOFT SERVE DISPENSING HEADS I
o PART NO 1605620
PAR~159--1b
PART NO PART NO 1605841 59295()
I PHNO 309-755-4553 O-R ING CHART HCDUKEampSONINC I
- Cover
- Table of Contents
- Safety
- Uncrating amp Inspection13
- Explanation of Electrical Controls
- Operation of Machine
- General Information
- Maintenance amp Adjustment
- Parts Breakdowns
- Trouble-Shooting Charts
- O-ring Charts
-
44
TROUBLE-SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Dispensed product too soft (Product temperature above 21 0 F)
1 Automatic expansion yalve incorrectly set or erratic in operation
-2 Leak in refrigeration system
resulting in little or no refrigeration
1 Adjust or replace expanSion valve
2 Pump down system or remove refrigerant charge repair leak evacuate and recharge
3 Excessive oil in system 3 Drain compressor to proper oil leyel pump down and flush system
4 Thermostat set too high taulty
or 4 Adiust thermostat or replace
Product dispenses slOWly out dispensing head
1 Reverse rotation 1 Change rotation to clockshywise from front of freezer
2 Dispensing speed adjustshyment boll too far down
2 Adjust bolt upward
3 Pum p problem 3 See pump Trouble-Shooting chart
4 Product too cold 4 See dispensed product too hard pg42
TROUBLE-SHOOTING CHART COMPRESSORICONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor will not start -hums intermittently (cycling on oyerload)
1 Improperly wired
2 Low line Yoltage
3 Open starting capacitor (single phase only)
4 High discharge pressure
1 Check wiring against diagram
2 Ask power company to increase YOltage to not less than 10 below nameplate rating or install transformer Check for inadequate wire size
3 Replace starting capacitor
4 CheCK water regulating valve setting Check water or air condenser and clean if necessary Make sure disshycharge shut-oft valve is open
Mig by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUAUTY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor starts but remains 1 Low line voltage 1 Ask power company to in start windings increase voltage to not less (Single phase only) than 10 below nameplate
rating or install transrormer
2 Improperly wired 2 Check wiring against drawing Check wire size
3 Running capacitor shorted 3 Check by disconnecting running capacitor
4 Starting capacitor weak 4 Check capacitor replace
5 High disCharge pressure 5 Check water regulating valve check water or air condenser and clean il necessary Check discharge shut-off valve
Starter burned out 1 Low line voltage 1 Ask power company to inshycrease voltage to not less than 10 below nameplate rating or install transformer
2 Excessive line voltage 2 Ask power company to reduce voltage to maximum of 10 over nameplate rating
Starting capacitors burn out 1 Voltage 100 low 1 Ask power company to (Single phase only) increase voltage to not less
than 10 below nameplate rating or install translonmer
2 Improper capacitor 2 Replace capacitor with properly rated capacitor as listed in manual
Running capacitors burn out 1 Excessive line voltage 1 Ask power company to reshy(Single phase only) duce line voltage to not more
than 10 above rating 01 motor
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
45
46
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Unit operates long or continuously
1 Shortage of gas
2 Dirty condenser
3 Moisture in system
4 Compressor failing
1 Repair leak and recharge
2 Clean condenser
3 Evacuate and recharge system
4 Check compressor lor proper pressures If inadequate replace compressor
Head pressure too high 1 Refrigerant overcharge
2 Air in system
3 Dirty condenser (air cooled)
4 Unit location too warm (air cooled)
5 Restricted water cooled condenser
6 Water turned off or defective
1 Purge system
2 Purge system evacuate and recharge
3 Clean condenser
4 Relocate unIt away from restriction Place nothing against back or on top of unit
5 Clean or replace condenser
6 Turn on water Or replace water regulating valve regulating valve
Head pressure too low 1 Shortage 01 refrigerant 1 Repair leak and recharge
2 Water regulating valve open 2 Adjust regulating valve too wide
Water 1I0wing through water 1 Water regulating valve 1 Replace water regulating valve waste line when unit is not in operation
defective
Noisy compressor 1 Tubing raUle 1 Bend tubes away from contact
NOTE Refer to warranty card prior to compressor replacement
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING DPR PUMP
TROUBLE PROBABLE CAUSE REMEDY
Pump will not run 1 Pump cover removed 1 Install pump cover
2 Pressure switch actuating 2 Free bulton-check spring and
bulton stuck open (in) pressure switch alignment
3 Pressure switch burned out 3 Replace pressure switch
4 Starting switch in motor bad 4 Install new starting switch
5 Motor burned out 5 Replace motor
6 Circuit breaker kicked out 6 Allow to re- set Replace it or faulty circuit breaker will not
automatically re-set
Motor runs-cam drive plate 1 Loose cam drive plate 1 Tighten set screw in cam will not turn drive plate Check woodruff key
2 Gear stripped 2 Replace gear
Pump will not shut off Mix 1 Pressure swilch actuating 1 Free button-check pressure shoots out pressure relief bulton stuck closed (out) switch alignment
2 Pressure switch stuck in 2 Replace pressure switch closed position
3 Pressure switch assy out 3 Using pressure gauge adjust of adjustment pressure
4 Dirty or plugged diaphragm 4 Disassemble and clean housing (Ref 42) housing
5 Defective O-Ring on 5 Replace O-Ring pressure relief piston
Pump will not prime 1 Insufficient supply of mix 1 Replenish mix supply
2 Piston O-ring defective-no 2 Replace piston O-Ring and suction lubricate
3 Washer valve not sealing 3 Replace washer valve DO NOT LUBRICATE
Pump primes No pressure in 1 Sleeve (Rei 29) not sealing 1 Replace sleeve DO NOT cylinder properly LUBRICATE
2 Loose hose connection on 2 Install or tighten hose clamp pump valve housing (Ref 27)
Mix shoots out Of air intake line 1 Washer valve (Ref 25) 1 Replace washer valve-DO not sealing properly NOT LUBRICATE
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOfT SERVE bull SHAKE bull SLUSH
47
48
TROUBLE-SHOOTING DPR PUMP
Too much air overrun too high-popping problems
Product dispenses slowly out of disPenSing head
1 Air meter too large (Ref 45)
2 Air leak befween mix conshytainer and mix inlet
3 Air line hose crackedshysucking air (Ref 44)
4 Pump pressure too lowshycylinder not full
1 Pump pressure too low
2 PrOduct too cold
3 Low overrun
Diaphragm housing leaking mix 1 Diaphragm housing loose
2 Diaphragm defective
Piston drive assy noisy 1 Bushing bearing worn
2 Defective gear in gear motor
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SIfAKE bull SLUSH
REMEDY
1 Replace washer valve-DO NOT LUBRICATE
2 Install clamp on hose
1 Replace O-Ring and LUBRIshyCATE
1 Clean or replace air meter
2 Replace tube
1 Install smaller air meier
2 Repair as needed
3 Replace air line hose
4 Using pressure gauge adjust pressure switch
1 Using pressure gauge adjust pump pressure
2 Check product temperatureshyshould be about 18 F
3 Check meter-if plugged-clean
1 Tighten wing nuls (Ref 41)
2 Replace diaphragm (Ref 43)
1 Replace bushing bearing (Ref 19)
2 Replace gear
TROUBLE
Mix inlet hose loses prime
Mix on top of piston
PROBABLE CAUSE
1 Washer valve (Ref 25) not sealing properly
2 Mix inlet hose loose
1 Piston O-Ring leaking (Ref 22)
No Air (Overrun) 11 Ai r meter plugged (Ref I 45)
2 Curved air tube pinched
--
DPR PUMP aI
PART NO 199019(i) PART NO 199020 reg DIAPHRAGM RUBBER SLEEVE
PART NO159295 PART NO 159282reg O-RING O-RING0
PART NO 160581reg O-RING
o PART NO PART NO
PART NO199011() 160611(8) 160582 WASHER VALVE O-RING O-RING
PISTON
cJ
DIAPHRAGM HOUSING
CYLINDER
VALVE HOUSIN6 ASSEMBLY
PUUPOUTLET
DRAIN PORT
I PHNO309-755-4553 O-RING CHART HCDUKEampSONINC I
1 I84Z08 SOFT SERVE DISPENSING HEADS I
o PART NO 1605620
PAR~159--1b
PART NO PART NO 1605841 59295()
I PHNO 309-755-4553 O-R ING CHART HCDUKEampSONINC I
- Cover
- Table of Contents
- Safety
- Uncrating amp Inspection13
- Explanation of Electrical Controls
- Operation of Machine
- General Information
- Maintenance amp Adjustment
- Parts Breakdowns
- Trouble-Shooting Charts
- O-ring Charts
-
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Compressor starts but remains 1 Low line voltage 1 Ask power company to in start windings increase voltage to not less (Single phase only) than 10 below nameplate
rating or install transrormer
2 Improperly wired 2 Check wiring against drawing Check wire size
3 Running capacitor shorted 3 Check by disconnecting running capacitor
4 Starting capacitor weak 4 Check capacitor replace
5 High disCharge pressure 5 Check water regulating valve check water or air condenser and clean il necessary Check discharge shut-off valve
Starter burned out 1 Low line voltage 1 Ask power company to inshycrease voltage to not less than 10 below nameplate rating or install transformer
2 Excessive line voltage 2 Ask power company to reduce voltage to maximum of 10 over nameplate rating
Starting capacitors burn out 1 Voltage 100 low 1 Ask power company to (Single phase only) increase voltage to not less
than 10 below nameplate rating or install translonmer
2 Improper capacitor 2 Replace capacitor with properly rated capacitor as listed in manual
Running capacitors burn out 1 Excessive line voltage 1 Ask power company to reshy(Single phase only) duce line voltage to not more
than 10 above rating 01 motor
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
45
46
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Unit operates long or continuously
1 Shortage of gas
2 Dirty condenser
3 Moisture in system
4 Compressor failing
1 Repair leak and recharge
2 Clean condenser
3 Evacuate and recharge system
4 Check compressor lor proper pressures If inadequate replace compressor
Head pressure too high 1 Refrigerant overcharge
2 Air in system
3 Dirty condenser (air cooled)
4 Unit location too warm (air cooled)
5 Restricted water cooled condenser
6 Water turned off or defective
1 Purge system
2 Purge system evacuate and recharge
3 Clean condenser
4 Relocate unIt away from restriction Place nothing against back or on top of unit
5 Clean or replace condenser
6 Turn on water Or replace water regulating valve regulating valve
Head pressure too low 1 Shortage 01 refrigerant 1 Repair leak and recharge
2 Water regulating valve open 2 Adjust regulating valve too wide
Water 1I0wing through water 1 Water regulating valve 1 Replace water regulating valve waste line when unit is not in operation
defective
Noisy compressor 1 Tubing raUle 1 Bend tubes away from contact
NOTE Refer to warranty card prior to compressor replacement
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING DPR PUMP
TROUBLE PROBABLE CAUSE REMEDY
Pump will not run 1 Pump cover removed 1 Install pump cover
2 Pressure switch actuating 2 Free bulton-check spring and
bulton stuck open (in) pressure switch alignment
3 Pressure switch burned out 3 Replace pressure switch
4 Starting switch in motor bad 4 Install new starting switch
5 Motor burned out 5 Replace motor
6 Circuit breaker kicked out 6 Allow to re- set Replace it or faulty circuit breaker will not
automatically re-set
Motor runs-cam drive plate 1 Loose cam drive plate 1 Tighten set screw in cam will not turn drive plate Check woodruff key
2 Gear stripped 2 Replace gear
Pump will not shut off Mix 1 Pressure swilch actuating 1 Free button-check pressure shoots out pressure relief bulton stuck closed (out) switch alignment
2 Pressure switch stuck in 2 Replace pressure switch closed position
3 Pressure switch assy out 3 Using pressure gauge adjust of adjustment pressure
4 Dirty or plugged diaphragm 4 Disassemble and clean housing (Ref 42) housing
5 Defective O-Ring on 5 Replace O-Ring pressure relief piston
Pump will not prime 1 Insufficient supply of mix 1 Replenish mix supply
2 Piston O-ring defective-no 2 Replace piston O-Ring and suction lubricate
3 Washer valve not sealing 3 Replace washer valve DO NOT LUBRICATE
Pump primes No pressure in 1 Sleeve (Rei 29) not sealing 1 Replace sleeve DO NOT cylinder properly LUBRICATE
2 Loose hose connection on 2 Install or tighten hose clamp pump valve housing (Ref 27)
Mix shoots out Of air intake line 1 Washer valve (Ref 25) 1 Replace washer valve-DO not sealing properly NOT LUBRICATE
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOfT SERVE bull SHAKE bull SLUSH
47
48
TROUBLE-SHOOTING DPR PUMP
Too much air overrun too high-popping problems
Product dispenses slowly out of disPenSing head
1 Air meter too large (Ref 45)
2 Air leak befween mix conshytainer and mix inlet
3 Air line hose crackedshysucking air (Ref 44)
4 Pump pressure too lowshycylinder not full
1 Pump pressure too low
2 PrOduct too cold
3 Low overrun
Diaphragm housing leaking mix 1 Diaphragm housing loose
2 Diaphragm defective
Piston drive assy noisy 1 Bushing bearing worn
2 Defective gear in gear motor
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SIfAKE bull SLUSH
REMEDY
1 Replace washer valve-DO NOT LUBRICATE
2 Install clamp on hose
1 Replace O-Ring and LUBRIshyCATE
1 Clean or replace air meter
2 Replace tube
1 Install smaller air meier
2 Repair as needed
3 Replace air line hose
4 Using pressure gauge adjust pressure switch
1 Using pressure gauge adjust pump pressure
2 Check product temperatureshyshould be about 18 F
3 Check meter-if plugged-clean
1 Tighten wing nuls (Ref 41)
2 Replace diaphragm (Ref 43)
1 Replace bushing bearing (Ref 19)
2 Replace gear
TROUBLE
Mix inlet hose loses prime
Mix on top of piston
PROBABLE CAUSE
1 Washer valve (Ref 25) not sealing properly
2 Mix inlet hose loose
1 Piston O-Ring leaking (Ref 22)
No Air (Overrun) 11 Ai r meter plugged (Ref I 45)
2 Curved air tube pinched
--
DPR PUMP aI
PART NO 199019(i) PART NO 199020 reg DIAPHRAGM RUBBER SLEEVE
PART NO159295 PART NO 159282reg O-RING O-RING0
PART NO 160581reg O-RING
o PART NO PART NO
PART NO199011() 160611(8) 160582 WASHER VALVE O-RING O-RING
PISTON
cJ
DIAPHRAGM HOUSING
CYLINDER
VALVE HOUSIN6 ASSEMBLY
PUUPOUTLET
DRAIN PORT
I PHNO309-755-4553 O-RING CHART HCDUKEampSONINC I
1 I84Z08 SOFT SERVE DISPENSING HEADS I
o PART NO 1605620
PAR~159--1b
PART NO PART NO 1605841 59295()
I PHNO 309-755-4553 O-R ING CHART HCDUKEampSONINC I
- Cover
- Table of Contents
- Safety
- Uncrating amp Inspection13
- Explanation of Electrical Controls
- Operation of Machine
- General Information
- Maintenance amp Adjustment
- Parts Breakdowns
- Trouble-Shooting Charts
- O-ring Charts
-
46
TROUBLE-SHOOTING CHART COMPRESSORCONDENSING CIRCUIT
TROUBLE PROBABLE CAUSE REMEDY
Unit operates long or continuously
1 Shortage of gas
2 Dirty condenser
3 Moisture in system
4 Compressor failing
1 Repair leak and recharge
2 Clean condenser
3 Evacuate and recharge system
4 Check compressor lor proper pressures If inadequate replace compressor
Head pressure too high 1 Refrigerant overcharge
2 Air in system
3 Dirty condenser (air cooled)
4 Unit location too warm (air cooled)
5 Restricted water cooled condenser
6 Water turned off or defective
1 Purge system
2 Purge system evacuate and recharge
3 Clean condenser
4 Relocate unIt away from restriction Place nothing against back or on top of unit
5 Clean or replace condenser
6 Turn on water Or replace water regulating valve regulating valve
Head pressure too low 1 Shortage 01 refrigerant 1 Repair leak and recharge
2 Water regulating valve open 2 Adjust regulating valve too wide
Water 1I0wing through water 1 Water regulating valve 1 Replace water regulating valve waste line when unit is not in operation
defective
Noisy compressor 1 Tubing raUle 1 Bend tubes away from contact
NOTE Refer to warranty card prior to compressor replacement
MIg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SHAKE bull SLUSH
TROUBLE-SHOOTING DPR PUMP
TROUBLE PROBABLE CAUSE REMEDY
Pump will not run 1 Pump cover removed 1 Install pump cover
2 Pressure switch actuating 2 Free bulton-check spring and
bulton stuck open (in) pressure switch alignment
3 Pressure switch burned out 3 Replace pressure switch
4 Starting switch in motor bad 4 Install new starting switch
5 Motor burned out 5 Replace motor
6 Circuit breaker kicked out 6 Allow to re- set Replace it or faulty circuit breaker will not
automatically re-set
Motor runs-cam drive plate 1 Loose cam drive plate 1 Tighten set screw in cam will not turn drive plate Check woodruff key
2 Gear stripped 2 Replace gear
Pump will not shut off Mix 1 Pressure swilch actuating 1 Free button-check pressure shoots out pressure relief bulton stuck closed (out) switch alignment
2 Pressure switch stuck in 2 Replace pressure switch closed position
3 Pressure switch assy out 3 Using pressure gauge adjust of adjustment pressure
4 Dirty or plugged diaphragm 4 Disassemble and clean housing (Ref 42) housing
5 Defective O-Ring on 5 Replace O-Ring pressure relief piston
Pump will not prime 1 Insufficient supply of mix 1 Replenish mix supply
2 Piston O-ring defective-no 2 Replace piston O-Ring and suction lubricate
3 Washer valve not sealing 3 Replace washer valve DO NOT LUBRICATE
Pump primes No pressure in 1 Sleeve (Rei 29) not sealing 1 Replace sleeve DO NOT cylinder properly LUBRICATE
2 Loose hose connection on 2 Install or tighten hose clamp pump valve housing (Ref 27)
Mix shoots out Of air intake line 1 Washer valve (Ref 25) 1 Replace washer valve-DO not sealing properly NOT LUBRICATE
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOfT SERVE bull SHAKE bull SLUSH
47
48
TROUBLE-SHOOTING DPR PUMP
Too much air overrun too high-popping problems
Product dispenses slowly out of disPenSing head
1 Air meter too large (Ref 45)
2 Air leak befween mix conshytainer and mix inlet
3 Air line hose crackedshysucking air (Ref 44)
4 Pump pressure too lowshycylinder not full
1 Pump pressure too low
2 PrOduct too cold
3 Low overrun
Diaphragm housing leaking mix 1 Diaphragm housing loose
2 Diaphragm defective
Piston drive assy noisy 1 Bushing bearing worn
2 Defective gear in gear motor
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SIfAKE bull SLUSH
REMEDY
1 Replace washer valve-DO NOT LUBRICATE
2 Install clamp on hose
1 Replace O-Ring and LUBRIshyCATE
1 Clean or replace air meter
2 Replace tube
1 Install smaller air meier
2 Repair as needed
3 Replace air line hose
4 Using pressure gauge adjust pressure switch
1 Using pressure gauge adjust pump pressure
2 Check product temperatureshyshould be about 18 F
3 Check meter-if plugged-clean
1 Tighten wing nuls (Ref 41)
2 Replace diaphragm (Ref 43)
1 Replace bushing bearing (Ref 19)
2 Replace gear
TROUBLE
Mix inlet hose loses prime
Mix on top of piston
PROBABLE CAUSE
1 Washer valve (Ref 25) not sealing properly
2 Mix inlet hose loose
1 Piston O-Ring leaking (Ref 22)
No Air (Overrun) 11 Ai r meter plugged (Ref I 45)
2 Curved air tube pinched
--
DPR PUMP aI
PART NO 199019(i) PART NO 199020 reg DIAPHRAGM RUBBER SLEEVE
PART NO159295 PART NO 159282reg O-RING O-RING0
PART NO 160581reg O-RING
o PART NO PART NO
PART NO199011() 160611(8) 160582 WASHER VALVE O-RING O-RING
PISTON
cJ
DIAPHRAGM HOUSING
CYLINDER
VALVE HOUSIN6 ASSEMBLY
PUUPOUTLET
DRAIN PORT
I PHNO309-755-4553 O-RING CHART HCDUKEampSONINC I
1 I84Z08 SOFT SERVE DISPENSING HEADS I
o PART NO 1605620
PAR~159--1b
PART NO PART NO 1605841 59295()
I PHNO 309-755-4553 O-R ING CHART HCDUKEampSONINC I
- Cover
- Table of Contents
- Safety
- Uncrating amp Inspection13
- Explanation of Electrical Controls
- Operation of Machine
- General Information
- Maintenance amp Adjustment
- Parts Breakdowns
- Trouble-Shooting Charts
- O-ring Charts
-
TROUBLE-SHOOTING DPR PUMP
TROUBLE PROBABLE CAUSE REMEDY
Pump will not run 1 Pump cover removed 1 Install pump cover
2 Pressure switch actuating 2 Free bulton-check spring and
bulton stuck open (in) pressure switch alignment
3 Pressure switch burned out 3 Replace pressure switch
4 Starting switch in motor bad 4 Install new starting switch
5 Motor burned out 5 Replace motor
6 Circuit breaker kicked out 6 Allow to re- set Replace it or faulty circuit breaker will not
automatically re-set
Motor runs-cam drive plate 1 Loose cam drive plate 1 Tighten set screw in cam will not turn drive plate Check woodruff key
2 Gear stripped 2 Replace gear
Pump will not shut off Mix 1 Pressure swilch actuating 1 Free button-check pressure shoots out pressure relief bulton stuck closed (out) switch alignment
2 Pressure switch stuck in 2 Replace pressure switch closed position
3 Pressure switch assy out 3 Using pressure gauge adjust of adjustment pressure
4 Dirty or plugged diaphragm 4 Disassemble and clean housing (Ref 42) housing
5 Defective O-Ring on 5 Replace O-Ring pressure relief piston
Pump will not prime 1 Insufficient supply of mix 1 Replenish mix supply
2 Piston O-ring defective-no 2 Replace piston O-Ring and suction lubricate
3 Washer valve not sealing 3 Replace washer valve DO NOT LUBRICATE
Pump primes No pressure in 1 Sleeve (Rei 29) not sealing 1 Replace sleeve DO NOT cylinder properly LUBRICATE
2 Loose hose connection on 2 Install or tighten hose clamp pump valve housing (Ref 27)
Mix shoots out Of air intake line 1 Washer valve (Ref 25) 1 Replace washer valve-DO not sealing properly NOT LUBRICATE
Mfg by H C DUKE amp SON INC bull 2116 Eighth Avenue East Moline IllinOIS 61244
SUPERIOR QUALITY FREEZERS bull SOfT SERVE bull SHAKE bull SLUSH
47
48
TROUBLE-SHOOTING DPR PUMP
Too much air overrun too high-popping problems
Product dispenses slowly out of disPenSing head
1 Air meter too large (Ref 45)
2 Air leak befween mix conshytainer and mix inlet
3 Air line hose crackedshysucking air (Ref 44)
4 Pump pressure too lowshycylinder not full
1 Pump pressure too low
2 PrOduct too cold
3 Low overrun
Diaphragm housing leaking mix 1 Diaphragm housing loose
2 Diaphragm defective
Piston drive assy noisy 1 Bushing bearing worn
2 Defective gear in gear motor
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SIfAKE bull SLUSH
REMEDY
1 Replace washer valve-DO NOT LUBRICATE
2 Install clamp on hose
1 Replace O-Ring and LUBRIshyCATE
1 Clean or replace air meter
2 Replace tube
1 Install smaller air meier
2 Repair as needed
3 Replace air line hose
4 Using pressure gauge adjust pressure switch
1 Using pressure gauge adjust pump pressure
2 Check product temperatureshyshould be about 18 F
3 Check meter-if plugged-clean
1 Tighten wing nuls (Ref 41)
2 Replace diaphragm (Ref 43)
1 Replace bushing bearing (Ref 19)
2 Replace gear
TROUBLE
Mix inlet hose loses prime
Mix on top of piston
PROBABLE CAUSE
1 Washer valve (Ref 25) not sealing properly
2 Mix inlet hose loose
1 Piston O-Ring leaking (Ref 22)
No Air (Overrun) 11 Ai r meter plugged (Ref I 45)
2 Curved air tube pinched
--
DPR PUMP aI
PART NO 199019(i) PART NO 199020 reg DIAPHRAGM RUBBER SLEEVE
PART NO159295 PART NO 159282reg O-RING O-RING0
PART NO 160581reg O-RING
o PART NO PART NO
PART NO199011() 160611(8) 160582 WASHER VALVE O-RING O-RING
PISTON
cJ
DIAPHRAGM HOUSING
CYLINDER
VALVE HOUSIN6 ASSEMBLY
PUUPOUTLET
DRAIN PORT
I PHNO309-755-4553 O-RING CHART HCDUKEampSONINC I
1 I84Z08 SOFT SERVE DISPENSING HEADS I
o PART NO 1605620
PAR~159--1b
PART NO PART NO 1605841 59295()
I PHNO 309-755-4553 O-R ING CHART HCDUKEampSONINC I
- Cover
- Table of Contents
- Safety
- Uncrating amp Inspection13
- Explanation of Electrical Controls
- Operation of Machine
- General Information
- Maintenance amp Adjustment
- Parts Breakdowns
- Trouble-Shooting Charts
- O-ring Charts
-
48
TROUBLE-SHOOTING DPR PUMP
Too much air overrun too high-popping problems
Product dispenses slowly out of disPenSing head
1 Air meter too large (Ref 45)
2 Air leak befween mix conshytainer and mix inlet
3 Air line hose crackedshysucking air (Ref 44)
4 Pump pressure too lowshycylinder not full
1 Pump pressure too low
2 PrOduct too cold
3 Low overrun
Diaphragm housing leaking mix 1 Diaphragm housing loose
2 Diaphragm defective
Piston drive assy noisy 1 Bushing bearing worn
2 Defective gear in gear motor
Mfg by H C DUKE amp SON INCbull 2116 Eighth Avenue East Moline Illinois 61244
SUPERIOR QUALITY FREEZERS bull SOFT SERVE bull SIfAKE bull SLUSH
REMEDY
1 Replace washer valve-DO NOT LUBRICATE
2 Install clamp on hose
1 Replace O-Ring and LUBRIshyCATE
1 Clean or replace air meter
2 Replace tube
1 Install smaller air meier
2 Repair as needed
3 Replace air line hose
4 Using pressure gauge adjust pressure switch
1 Using pressure gauge adjust pump pressure
2 Check product temperatureshyshould be about 18 F
3 Check meter-if plugged-clean
1 Tighten wing nuls (Ref 41)
2 Replace diaphragm (Ref 43)
1 Replace bushing bearing (Ref 19)
2 Replace gear
TROUBLE
Mix inlet hose loses prime
Mix on top of piston
PROBABLE CAUSE
1 Washer valve (Ref 25) not sealing properly
2 Mix inlet hose loose
1 Piston O-Ring leaking (Ref 22)
No Air (Overrun) 11 Ai r meter plugged (Ref I 45)
2 Curved air tube pinched
--
DPR PUMP aI
PART NO 199019(i) PART NO 199020 reg DIAPHRAGM RUBBER SLEEVE
PART NO159295 PART NO 159282reg O-RING O-RING0
PART NO 160581reg O-RING
o PART NO PART NO
PART NO199011() 160611(8) 160582 WASHER VALVE O-RING O-RING
PISTON
cJ
DIAPHRAGM HOUSING
CYLINDER
VALVE HOUSIN6 ASSEMBLY
PUUPOUTLET
DRAIN PORT
I PHNO309-755-4553 O-RING CHART HCDUKEampSONINC I
1 I84Z08 SOFT SERVE DISPENSING HEADS I
o PART NO 1605620
PAR~159--1b
PART NO PART NO 1605841 59295()
I PHNO 309-755-4553 O-R ING CHART HCDUKEampSONINC I
- Cover
- Table of Contents
- Safety
- Uncrating amp Inspection13
- Explanation of Electrical Controls
- Operation of Machine
- General Information
- Maintenance amp Adjustment
- Parts Breakdowns
- Trouble-Shooting Charts
- O-ring Charts
-
--
DPR PUMP aI
PART NO 199019(i) PART NO 199020 reg DIAPHRAGM RUBBER SLEEVE
PART NO159295 PART NO 159282reg O-RING O-RING0
PART NO 160581reg O-RING
o PART NO PART NO
PART NO199011() 160611(8) 160582 WASHER VALVE O-RING O-RING
PISTON
cJ
DIAPHRAGM HOUSING
CYLINDER
VALVE HOUSIN6 ASSEMBLY
PUUPOUTLET
DRAIN PORT
I PHNO309-755-4553 O-RING CHART HCDUKEampSONINC I
1 I84Z08 SOFT SERVE DISPENSING HEADS I
o PART NO 1605620
PAR~159--1b
PART NO PART NO 1605841 59295()
I PHNO 309-755-4553 O-R ING CHART HCDUKEampSONINC I
- Cover
- Table of Contents
- Safety
- Uncrating amp Inspection13
- Explanation of Electrical Controls
- Operation of Machine
- General Information
- Maintenance amp Adjustment
- Parts Breakdowns
- Trouble-Shooting Charts
- O-ring Charts
-
1 I84Z08 SOFT SERVE DISPENSING HEADS I
o PART NO 1605620
PAR~159--1b
PART NO PART NO 1605841 59295()
I PHNO 309-755-4553 O-R ING CHART HCDUKEampSONINC I
- Cover
- Table of Contents
- Safety
- Uncrating amp Inspection13
- Explanation of Electrical Controls
- Operation of Machine
- General Information
- Maintenance amp Adjustment
- Parts Breakdowns
- Trouble-Shooting Charts
- O-ring Charts
-