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XAS185 JD7 Compressors
Scott Malm
Committed tosustainable productivity.
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Hard Hat VersionUnit features
Two canopy choices
One made from composite material that does not dent or rust
Removable side and end panels for easy service
Rear mounted controls and discharge valves
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Standard VersionSteel construction
Removable side and end panels for easy service
Same rear mounted control panel
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Product nomination and grouping
Principle data Compressor systems:
Service Kits Warranty
XAS 185 JD7
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Product Nomination Oil Injected CompressorsNomination and
groupingPrinciple data Compressor systems Running conditions Electrical system Instrument panel
X A T S 185 J D
Product rangeX : Oil injected portable compressor
Working principleA : Single stage compressorR : Two stage compressor
Working pressure
: standard pressure 102psiT : “ten” pressure 150psiH : high pressure 175psi
Silencing : Un-silencedS : Silenced
Capacity (FAD)Liter/secCFM (US-version)
Engine supplierC : CaterpillarD : DeutzJ : John DeereK : Kabota
Prime moverd : diesel engineE : electric motor
7
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Principle DataNomination and
groupingPrinciple data Compressor systems Running conditions Electrical system Instrument panel
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Compressor Systems
*4 major systems Air system Oil system Regulating system Electrical system
Nomination and grouping
Principle data Compressor systems Running conditions Electrical system Instrument panel
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Air system
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Air System
Air filter
Unloading valve
Compressor element
Check valve
Air receiver
Minimum pressure nozzle
Air outlet valve
Nomination and grouping
Principle data Compressor systems Running conditions Electrical system Instrument panel
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Air Filter
Air inlet Centrifugal separation
Dust
Filter element
to compressor element
Vacuum indicator 1310 0348 91
Nomination and grouping
Principle data Compressor systems Running conditions Electrical system Instrument panel
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Air Filter Filtration of the inlet air in 2 stages :
– Centrifugal dust separation
– Paper filter element
– Optional safety element
– Air filter vacuum indicator
– Safety Filter XAS 185 JD7 1310 0343 81 Compressor
1310 0303 10 Engine
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Unloading Valve
Opens and closes the air inlet to the compressor element.– Open position at load condition
=> Air demand.
– Closed position at no load condition=> No air demand.
Valve is controlled by the regulating pressure.
Nomination and grouping
Principle data Compressor systems Running conditions Electrical system Instrument panel
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Unloading Valve
Valve
Spring loaded
Regulating pressure Air inlet
Integrated blow-down valve
Vent Hole
Nomination and grouping
Principle data Compressor systems Running conditions Electrical system Instrument panel
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Unloading Valve
LOAD UNLOAD
Reg
ulat
ing
pres
sure
Air inlet
Nomination and grouping
Principle data Compressor systems Running conditions Electrical system Instrument panel
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Compressor ElementNomination and
groupingPrinciple data Compressor systems Running conditions Electrical system Instrument panel
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Compressor Coupler
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Compressor ElementNomination and
groupingPrinciple data Compressor systems Running conditions Electrical system Instrument panel
Oil is injected in the bottom of the rotor housing,
on the bearings and gears
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Compressor Element
Oil
Oil
Air/Oil
Air inlet
Nomination and grouping
Principle data Compressor systems Running conditions Electrical system Instrument panel
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Check Valve
Check valve is integrated in the Unloader XAS 185 JD compressor.
Closed when the compressor is stopped.
The air receiver is pressurized, which would result in a reverse air flow. the check valve prevents this.
Nomination and grouping
Principle data Compressor systems Running conditions Electrical system Instrument panel
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Check Valve
LOAD
Check valve
SHUT-DOWN
Receiver pressureWhen compressor is shut-down
Nomination and grouping
Principle data Compressor systems Running conditions Electrical system Instrument panel
Valve Part # 1615766785
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Air Receiver
Air/Oil
Centrifugal Separation
Air outlet
Nomination and grouping
Principle data Compressor systems Running conditions Electrical system Instrument panel
SeparatorElement
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Minimum Pressure Nozzle
Guarantees a minimum pressure in the receiver tank (approx. 45 – 60 psi)
Minimum pressure is required to guarantee a continuous oil supply to the element.
NOZZLE
Nomination and grouping
Principle data Compressor systems Running conditions Electrical system Instrument panel
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OIL SYSTEM
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Oil System
Air receiver
Oil cooler
Oil filter
Compressor element
Oil separator
Scavenge line
Nomination and grouping
Principle data Compressor systems Running conditions Electrical system Instrument panel
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Air Receiver
Oil flow
Pressure
Nomination and grouping
Principle data Compressor systems Running conditions Electrical system Instrument panel
No Compressor Oil Pump Necessary
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Oil Cooler
Warm Oil
Cooling air
Nomination and grouping
Principle data Compressor systems Running conditions Electrical system Instrument panel
Cool Oil
Oil Temp Should Have no more than 40 F Drop Through The Cooler – Use Proper Oil and Filters
º
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Oil Filter
Dirty Oil Filtered Oil
By-pass valve
Nomination and grouping
Principle data Compressor systems Running conditions Electrical system Instrument panel
Part # 2914505000
By pass valve opens at 36 PSI
Ensures sufficient lubrication
And cooling if the filter gets clogged
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Compressor Element
Oil Air/Oil
Lubrication to the bearings
Air inlet
Nomination and grouping
Principle data Compressor systems Running conditions Electrical system Instrument panel
Scavenged oil
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Oil Separator & Scavenge Line
Air/Oil
Centrifugal separation
Separator Element
Oil
Scavenge line
Nomination and grouping
Principle data Compressor systems Running conditions Electrical system Instrument panel
When changing the separator element the retainer must be cleaned
Also works as ground
* Centrifugal force removes about 85% of the oil
Change of direction, about 99% of the oil
After separator element at discharge will be 3 to 5 PPM.
**Make sure the scavenge line runs ALONG SIDE the air outlet tube and NOT in the air outlet**
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Oil Separator
Classic Reasons For Oil Carryover– Over filled receiver– Plugged scavenge line or restricted orifice– Wrong type of oil (no anti foam agent and anti-corrosion additives)– Shut down with air outlet valves open (Only On XAS 185)– Scavenge tube installed improperly (in outlet tube)– Used incorrectly for application (Sandblasting)
Separator Kit Part Number 2911 0068 00
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REGULATING SYSTEM
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Regulating System
• Regulating valve
• Unloading valve
• Speed regulator
• Blow-down valve
• Safety valve
Regulating Valve
Unloading Valve
Speed Regulator
Safety Valve
Nomination and grouping
Principle data Compressor systems Running conditions Electrical system Instrument panel
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Regulating Valve
Regulates the effective pressure in the air receiver
Provides regulating pressure to :– unloading valve
=> regulates the air inlet according the air demand
– speed regulator=> regulates the engine speed to reduce fuel consumption
Regulating Valve Part Number 1615 7664 80
Nomination and grouping
Principle data Compressor systems Running conditions Electrical system Instrument panel
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Regulating Valve
LOAD UNLOAD
Nomination and grouping
Principle data Compressor systems Running conditions Electrical system Instrument panel
Receiver Pressure
Pressure Gauge
Adjusts Unload Pressure
Control Pressure
To speed reg
To unloading valve
To blow down valveScavenge line
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Speed Regulator
Regulates the engine speed in relation to the required air demand
Load condition : maximum engine speed
Unload condition : minimum engine speed
Reg. will adjust the engine speed to match air demand
Speed Regulator part number 1310 0305 73
Nomination and grouping
Principle data Compressor systems Running conditions Electrical system Instrument panel
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Speed RegulatorNomination and
groupingPrinciple data Compressor systems Running conditions Electrical system Instrument panel
Control airControl air
VentVent
Max Speed Idle Speed
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Blow Down Valve
Blows off the air receiver pressure once the compressor has shut-down=> this is to depressurize the receiver tank
Integrated in the unloading valve
Nomination and grouping
Principle data Compressor systems Running conditions Electrical system Instrument panel
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Unloading Valve – Cut Away
Blow Down Valve
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Blow Down Valve
LOAD / UNLOAD BLOW-DOWN
Blow-off receiver pressure
Nomination and grouping
Principle data Compressor systems Running conditions Electrical system Instrument panel
Receiver PressureReceiver pressure
blow-down valve
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Safety Valve
Blows off the air receiver pressure when it exceeds the preset value.
Protects the compressor and engine.
XAS 185 JD - 170 PSI
Nomination and grouping
Principle data Compressor systems Running conditions Electrical system Instrument panel
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Compressor Running Conditions
Major running conditions :
– UNLOADReceiver tank pressurized, no air being used
– LOADReceiver tank pressurized, air is being used
– BLOW-DOWNMachine stopped, blow-off of receiver pressure
Nomination and grouping
Principle data Compressor systems Running conditions Electrical system Instrument panel
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Electrical System
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Electrical System
12 Volts DC
Alternator has built in voltage regulator– B+ Positive to recharge battery– B- Ground– W Frequency for tachometer (optional)– D+ Ground when alternator is turning less than
650RPM12 Volts when turning more than 650 RPMCuts-out starter motor when engine is running through
K4 relay
Nomination and grouping
Principle data Compressor systems Running conditions Electrical system Instrument panel
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Electrical System
Safety shut-downs– Compressor :
Compressor element outlet temperature (255ºF) – 1310 0734 67– Engine :
Coolant temperature (221ºF) Oil pressure (17psi) Low fuel level (5%) Alternator not charging Fail safe as a loose wire will result in a shut-down
Good electrical contacts are important
Nomination and grouping
Principle data Compressor systems Running conditions Electrical system Instrument panel
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Electrical System / Std Unit - XAS 185 JD7Nomination and
groupingPrinciple data Compressor systems Running conditions Electrical system Instrument panel
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Switch In The Off Position
1
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Switch In The On Position
2
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Switch In The On Position S-4 Cold Start Pressed
3
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Switch In The # 2 Position
4
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Switch In The Start Position
5
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Switch Back To The On Position- Engine Running
6
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Control Panel
Comp Temp LampGeneral Alarm Lamp
Ignition Switch
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Control panel isMounted at therear of the unit
More visible and user friendly
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Control Panel
Coldstart
Fuel GageWorking
Pressure Compressor
temp
General alarm
Ignition Switch
Hour MeterCold Start
10 AMP Circuit Breaker Behind Control Panel
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Service Kits
XAS 185 CD
Kit number Designation– 2911 0051 00 Unloader
– 0665 0999 54 Speed Reg.(Piston Seal)
– 0665 9110 01 Speed Reg.(Wiper)
– 2911 0068 00 Oil separator
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Preventive Maintenance Filter Kits
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Spare Parts Recommendation
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Maintenance
DAILY
Check engine oil level
Check compressor oil level
Check air filter vacuum indicator
Empty air filter vacuator valve
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Maintenance
50 HOURS
Change compressor spin on filter (2914 5050 00)
Check battery terminals (Load Test)
Check tire pressure / re-torque wheel lug nuts
Check drawbar bolts
Check for leaks in the air, fuel, and oil system
Check engine minimum (1600) / maximum (2750) RPM
Lubricate door hinges / locks / etc.
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Maintenance
250 Hours
Perform 50 hour maintenance plus:
Change engine oil and filter
Clean the oil cooler / radiator
Clean fuel tank
Change fuel filters
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Maintenance
500 Hours/Annually
Perform the 250 hour maintenance plus:
Change compressor oil spin on filter
Check/Replace air filter elements
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Maintenance
1000 Hours/Annually
Perform 500 hour maintenance plus:
Adjust valves on engine
Replace Air oil separator
Test safety valve
Test operation of engine and compressor
Test safety switches and relays
Repack or Grease wheel bearings
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Torque values
Hex agon s c rews & nuts w ith s thength grade 8.8th s trength grade 8.8Thread s iz e M 6 M 8 M 10 M 12 M 14 M 16Nm 9 23 46 80 125 205Lb.ft 7 17 34 60 93 152
Hex agon s c rews & nuts w ith s thength grade 12.9nuts w ith s trength grade 12.9Thread s iz e M 6 M 8 M 10 M 12 M 14 M 16Nm 15 39 78 135 210 345Lb.ft 12 29 58 100 155 255
SAE Grade 5
SAE Grade 8
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Special Torque values
Wheel nuts 59 lb.ft (+7-0) Axle - beams 59 lb.ft (+/-7)Drawbar - axle 59 lb.ft (+/-7)Drawbar - bottom 59 lb.ft (+/-7)Towing eye - drawbar 59 lb.ft (+/-7)Lifting eye - flywheel housing 151 lb.ft (+15/-0)Engine - drive housing (M12) 59 lb.ft (+/-7)Engine - drive housing (M14) 92 lb.ft (+/-7)Compressor - drive housing 59 lb.ft (+/-4)Safety switches 26 lb.ft (+/-4)
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Warranty – Compressors – Replacement Parts
Atlas Copco portable air compressors are warranted to be free from defects with regard to materials and workmanship for the period of fifteen (15) months from date of shipment from the factory, or twelve (12) months from date of initial startup, whichever occurs first, without limitation in running hours.
All Spare Parts are sold with a 90 day warranty unless otherwise specified.
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Warranty – Air Compressor Elements Air compressor elements and gearbox assemblies used in Atlas Copco
portable air compressors, are warranted to be free from defects with regard to materials and workmanship for the period of thirty-nine (39) months from date of shipment from the factory, or thirty-six (36) months from date of initial startup, whichever occurs first, without limitation in running hours. This is provided only Atlas Copco kits and fluids are used throughout this period.
Replacement of Elements
In the event that there is a need to replace an element it will be warranted for 12 months or the balance of the machine warranty which ever is greater.
Extended warranty of 5 years 10,000 Hrs. on compressor element and gearbox assemblies provided only Atlas Copco kits and fluids are used throughout the 5 year period at the maintenance intervals indicated in the instruction manual.
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Warranty - Engines John Deere –
1 year unlimited hours or 2 years 2000 hours whichever occurs first.
Extended engine warranties may be purchased through the local engine dealers.
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Committed tosustainable productivity.
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