68 sr triplex – ce owner's manual68" sr triplex – ce national mower co. 700 raymond...

68" SR TRIPLEX – CE

NATIONAL MOWER CO. 700 Raymond Ave., P.O. Box 14299, St. Paul, Minnesota 55114-0299, U.S.A.Phone (651) 646-4079 – Fax (651) 646-2887

www.nationalmower.com

OWNER'S MANUALIncludes Operation, Maintenance and

Parts Lists for SR 68" and DL 68"

OCTOBER – 2001

68OMCE-10/01-3502

NATIONAL MOWER COMPANY

ONE YEARLIMITED WARRANTY

For the period of one year from the date of purchase (45 days if the productis used for rental purposes), National Mower Company will repair or replace freeof charge, for the original purchaser, any part or parts found by inspection to bedefective by our Factory Authorized Service Station or by the Factory at St. Paul,Minnesota to be defective in material or workmanship or both. All transportationcharges on parts submitted for repair or replacement under this warranty shall bepaid for by the purchaser.

This warranty does not include engines, engine parts or tires which arecovered under separate warranties furnished by their manufacture or supplier.

All service under this warranty will be furnished and performed by our FactoryAuthorized Service Stations.

-THERE IS NO OTHER EXPRESS WARRANTY-

IMPLIED WARRANTIES, INCLUDING THOSE OF MERCHANTABILITY ANDFITNESS FOR A PARTICULAR PURPOSE, ARE LIMITED TO ONE YEARFROM PURCHASE OR 45 DAYS IF THE PRODUCT IS RENTED AND TOTHE EXTENT PERMITTED BY LAW, ANY AND ALL IMPLIED WARRANTIESARE EXCLUDED. THE ABOVE REMEDY OF REPAIR AND REPLACEMENTOF DEFECTIVE PARTS IS THE PURCHASER’S EXCLUSIVE REMEDY FORANY DEFECT, MALFUNCTION OR BREACH OF WARRANTY. LIABILITYFOR INCIDENTAL OR CONSEQUENTIAL DAMAGES UNDER ANY AND ALLWARRANTIES IS EXCLUDED TO THE EXTENT PERMITTED BY LAW.

NATIONAL MOWER COMPANY700 Raymond Avenue, St. Paul, Minnesota 55414, U.S.A.

NATIONAL 68" SR & DL TRIPLEX – CE®

3

TABLE OF CONTENTSDeclaration Of Conformity ............................................................................... 4Specifications

Dimensions – Mower ................................................................................ 5Engine – Briggs & Straton ...................................................................... 5Disposal Numbers .................................................................................... 5Noise Emission and Vibration .................................................................. 5

Safe Operating Practices ................................................................................ 6Decal (Transfer) Identification ................................................................... 7 & 8Introduction ..................................................................................................... 9Receipt Of Shipment ....................................................................................... 9Uncrating Instructions ..................................................................................... 9Assembly Instructions

Rear Mower .................................................................................... 10 & 11Seat ................................................................................................ 10 & 11Wing Mowers .................................................................................. 10 & 11Engine ............................................................................................ 10 & 11Differential ...................................................................................... 10 & 11

MaintenanceLubrication .............................................................................................. 13Bed Knife Replacement .......................................................................... 14Lapping and Grinding Procedures......................................................... 15

AdjustmentsHeight Of Cut .......................................................................................... 16Reel To Bed Knife Adjustment ............................................................... 16Reel End Play Adjustment ...................................................................... 16Brake Adjustment ................................................................................... 17Wing Mower Drive Belt Tension ............................................................. 17Rear Mower Drive Belt Tension ............................................................. 17Engine Drive Belt Tension ...................................................................... 17Main Drive Belt Tension ......................................................................... 17

Troubleshooting ............................................................................................ 18Wiring Diagram—SR Electrical Interlock ...................................................... 18Parts List

Ordering Information............................................................................... 19Frame and Running Gear ............................................................... 20 & 21Rear End ........................................................................................ 22 & 23Drive Mechanism and Wing Mower Supports ................................ 24 & 25Rear Mower .................................................................................... 26 & 27Wing Mower .................................................................................... 28 & 29Drive and Mower Skids and Shields ....................................................... 30Deluxe 68" Running Gear and Misc. Parts ............................................. 31Deluxe 68" Drive Parts ................................................................... 32 & 33Deluxe 68" Electrical Diagram ........................................................ 34 & 35

68OMCE-10/01-3504

DECLARATION OF CONFORMITYaccording to Directive 89/392/EEC

We NATIONAL MOWER COMPANY..............................................................................................................................................................(Name of supplier)

700 Raymond Avenue, St. Paul, Minnesota 55114 U.S.A...............................................................................................................................................................(Full address of the manufacturer—authorized representative in the community must also give thebusiness name and address of the manufacturer)

declare under our sole responsibility, that the product

68" NATIONAL TRIPLEX MOWER(Make and model)

to which this declaration relates corresponds to the relevant basic safety and health requirements ofthe Directive 89/392/EEC, (if applicable)and to the requirements of other relevant Directives:

EN292-1&2--EN294--EN349..............................................................................................................................................................(Title and/or number and date of issue of the other Directives)

(If applicable)

For the relevant implementation of the safety and health requirements mentioned in the directives,the following standard(s) and/or technical specification(s) has (have) been respected:

ANSI B71.4..............................................................................................................................................................(Title and/or number and date of issue of standard(s) and/or technical specification(s))

St. Paul, MN, USA 10/15/2001

(Place and date of issue) (Name, function and signature of the authorized person)


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SPECIFICATIONS

Overall Length .............................................................................................. 79.13" (201 cm)Width, Wing Mowers Folded .......................................................................... 61.8" (157 cm)Width, Wing Mowers Down ............................................................................... 76" (193 cm)Height ............................................................................................................ 39.37"(100 cm)Weight (empty) ......................................................................................... 639.5 lbs. (290 kg)

Engine Type .............................. Forced Air Cooled, 4-cycle, Horizontal Shaft, OHV EngineNumber Of Cylinders ...................................................................................................... OneBore and Stroke .......................................................................... 2.99" x 2.17" (76 x 55 mm)Piston Displacement .................................................................................................... 215ccMaximum Horsepower .................. 7.5 hp (5.6 kW)) / 3600 rpm (Corrected per SAE J1349)Maximum Torque ............................................................ 12.5 ft/lbs (16.5 N-m) at 2500 rpmDirection Of Rotation ............................................ Counterclockwise Facing The PTO ShaftFast Idle Speed .......................................................................................................4000 rpmSlow Idle Speed ......................................................................................................1750 rpmFuel ............................................................................................ Unleaded Gasoline (Petrol)Fuel Tank Capacity .................................................................................... 4.80 US qt (4.54)Minimum Specific Fuel Consumption Ratio ............................... 240 gr/hp-hr (322 gr/kW-hr)Oil ................................................................................................... Engine Oil SAE 10W-30Oil Capacity .................................................................................................. 1.90 US pt (.90)Carburetor ............................................................................. Float Type with Fixed Main JetBalancing ......................................................................................... Reciprocating BalancerIgnition .......................................................................... Flywheel Magneto, Transistor TypeSpark Plug ...................................................................................................... Resistor TypeStarter ................................................. Recoil Starter with Automatic Compression ReleaseGovernor ............................................................................................................. MechanicalLubrication Type ..........................................................Splash with Low Oil Shut-off SystemAir Cleaner ....................................................................................................... Dual ElementMuffler ........................................................................................................... Low Tone TypeLighting Coil ......................................................................................................... 12 V–25 WCharging Coil ................................................................................................................. 10 ANet Weight (Engine) .................................................................................. 59.1 lbs (26.8 kg)Dimensions (L x W x H) ........................... 13.5" x 15.6" x 17.0" (344.5 x 395.5 x 432.5 mm)

Gasoline (Petrol), Lead Free ....................................................................................... 54104Engine Oil .................................................................................................................... 54112Fiberglass Parts ........................................................................................................... 57103Tires ............................................................................................................................. 57502Gear Oil ........................................................................................................................ 54112Grease ......................................................................................................................... 54202Plastic Tanks ................................................................................................................ 57127

Sound*: Operator Position ...................................................................................... 86 dBASound Power Level (LwA) ........................................................................ 99 dBA

Vibration*: Maximum Vibration 16.1 m/s2 RMSLocation ................................................................................................ Left Hand

*Operating Condition: Engine rpm–3400, Unit Stationary

DIMENSIONS & WEIGHT– MOWER

ENGINE – BRIGGS & STRATTON

DISPOSAL NUMBERS

NOISE EMISSION AND VIBRATION

68OMCE-10/01-3506

National Mower Safe Operation PracticesFor Riding Mowers

1. Know control functions and how to stop quickly. READ THE OWNER’S MANUAL. 2. Wear approved safety glasses or goggles when operating the mower. 3. Do not allow children to operate mower. Do not allow adults to operate mower without proper instruction. 4. Do not carry passengers. Keep children and pets at a safe distance from an operating mower. 5. Clear the work place of objects which might be picked up by the blades and thrown. 6. Disengage all reel clutches and shift into neutral before attempting to start the engine (motor). Disengage main

clutch before shifting reel clutches. 7. Disengage power to the reels and stop the engine (motor) before leaving the operator’s position. 8. Disengage power to the reels and stop the engine (motor) before making any repairs or adjustments. 9. Disengage power to the reels when transporting or not in use.10. Take all possible precautions when leaving the mower unattended, such as, shifting into neutral, setting the

parking brake, stopping the engine and removing the ignition key.11. Do not stop or start suddenly when going uphill or downhill. Mow up and down the face of steep slopes – never

across steep slopes. Do not exceed a slope of 25o in any direction.12. Reduce travel speed on slopes and in sharp turns to prevent tipping or loss of control. Use extreme caution

when changing direction on slopes.13. Watch for holes in the terrain and other hidden hazards.14. Watch for dangerous traffic when crossing or near roadways.15. Never direct the discharge of material from operating reels toward bystanders nor allow anyone near the mower.16. Handle gasoline (petro)l with CAUTION - it is highly flammable.

a. Use an approved gasoline (petrol) container.b. Never remove the fuel tank cap or add gasoline (petrol) to a running or hot engine. Never fill the fuel tank

indoors. Wipe spilled gasoline (petrol) immediately.c. Open garage doors to allow ventilation if engine is run inside – exhaust fumes are dangerous. Do not run

engine in any enclosed area.17. Keep the mower in good operating condition. Make sure that all safety switches are operating properly and

all safety guards are in place at all times, except during servicing.18. Keep all nuts, bolts, and screws tight to be sure that the mower is in a safe working condition.19. Never store the mower, with gasoline (petrol) in the tank, inside a building where fumes could reach an open flame

or spark. Allow the engine to cool before storing in any enclosure.20. Keep the engine free of grass, leaves or excessive grease to reduce a fire hazard.21. The mower and reels should be stopped and inspected for damage after striking a foreign object. The damage

should be repaired before restarting and operating the mower.22. Do not change the engine governor settings or overspeed the engine.23. Proceed as follows when mowing:

a. Mow only in the daylight or in good artificial light.b. Never make a cutting height adjustment while the engine (motor) is running.c. Shut the engine (motor) off when removing grass or unclogging reels.

24. This machine is to be used only as a grass cutter or lawn mower.

IMPORTANT

WARNING– California, USA residents are required by law (CA PRC 4442 & CA H & SC 13005) to equip theirengines with spark arresters when operating in flammable vegitation. Arresters must be obtained from yourengine dealer and are not available from National Mower Company.


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TRANSFER IDENTIFICATION

1

2

3

4 5

NATIONAL MOWER CO.700 RAYMOND AVE.

ST. PAUL, MINNESOTA 55114 USA651-646-4079 FAX 651-646-2887

YEAR OF MANUFACTURE: 2000POWER RATING: 7.5 (5.6 kW) at 3600 RPM

WEIGHT: 639.5 lbs (290 kg)

68OMCE-10/01-3508

6

7

8 9

NO. PART NO. TRANSFER DESCRIPTION

1 07358 Do not exceed 25o slope. Located on main belt shield.2 07358 Manufacturer's identification and specifications. Located

on the main belt shield.3 07358 Read Operator's Manual. Refer to manual for adjustments.

Caution: Machine is used only as a lawn mower. Keepaway bystanders. Located on main belt shield.

4 07363 Sound power level. Located on main belt shield.5 07363 Sound Level, operator's position. Located on main belt

shield.6 07359 Forward, Neutral and Reverse positions. Located on main

belt shield.7 07359 Rear mower clutch engagement. Located on the rear

mower shield.8 07359 Wing mower clutch engagement. Located on main belt

shield.9 07359 Engine clutch lever: Back, Neutral & Forward. Located on

main belt shield.


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FIGURE A

CAUTION

Claims for shipping damages must be noted by theconsignee at the point of destination and filed with thetransportation company that delivers the shipment.

CAUTION

INTRODUCTIONThis machine has been designed to meet European

CE Safety Standards. Metric eqivalents are providedwherever possible for users outside the United States.

This manual has been prepared by National MowerCompany as an aid to users for assembly, maintenance,adjustment and ordering replacement parts. Additional

information will gladly be furnished by calling or writing themanufacturer or his authorized agent.

Please furnish us with the Model Number, SerialNumber and Date of Purchase when contacting us aboutyour machine. Designations of right, left, front and rearare used as if the operator was sitting in the mower seat.

NOTE

4. Lift Rear Mower (4, Fig. A) off the crate supportingmembers and set aside for later attachment.

Handle mowers carefully with protective gloves.Reels rotate freely and are very sharp.

5. Make sure Wing Mowers (5, Fig. A) are secure to themower frame with Wing Mower Hooks (15, Fig. B).

6. Knock down all sides of crate and remove. Roll mowerbackwards off of crate base.

UNCRATING INSTRUCTIONS

RECEIPT OF SHIPMENTCarefully inspect your machine and crate for dam-

age that could have occured during shipment. If damagesor shortages are noted, have the transportation company’srepresentative note this on the bill of lading.

In order to prevent possible damage to the machine orpersonal injury, the following uncrating procedure mustbe followed:1. Position Crate 1 as shown in Figure A, on a hard, level surface.2 Cut and remove all Steel Banding (2, Fig. A).3. Remove the entire top of the crate. Unbolt Seat (3,

Fig. A) from crate bracing and lay seat aside forinstallation later. Save the bolt and washer to use formounting the seat mounting member.

68OMCE-10/01-35010

FIG

UR

E B


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WING MOWERS

1. Remove Wing Mower Belts (17, Fig. B) from the steer-ing column.

2. Unlock Hooks (18, Fig. B) from Wing Mower Assem-blies (19, Fig. B), lower them carefully to the ground.Slip wing mower belts over Countershaft Pulleys (20,Fig. B).

3. Block mower wheels to prevent mower from movingforward. Pull Wing Mower Assemblies (19, Fig. B)forward so that they slide on Pull Rods (21, Fig. B) andcompress springs. This will allow enough slack toenable belts to be installed over Reel Pulleys (22, Fig. B).

ENGINE

MOWER IS SHIPPED WITH DRY ENGINE. DONOT START ENGINE UNTIL OIL IS ADDED TOCRANKCASE. See Engine Manual for additionalinformation.

DIFFERENTIAL

Grease has been installed in the differential at thefactory. Refer to the Maintenance Section, page 7, foradditional information.

ASSEMBLY INSTRUCTIONS

REAR MOWER

1. Remove two 1/2" x 1-1/2" Hex Head Bolts (1, Fig. B)and nuts from the shipping position in the Seat Hingeassembly (2, Fig. B). Position Seat Hinge Assemblywith pivot facing rearward, over the seat mount of themower frame and fasten with Bolts (1, Fig. B) and locknuts.

2. Pivot Seat Brace (3, Fig. B) from the axle so that thetop end aligns with the tab at the back of the seathinge assembly. Fasten with a 5/16" x 1" Hex HeadBolt, Lock Washer and Hex Nut.

3. Remove the Lifter Tee (4, Fig. B) from the shippingposition in the Pivot Tube (5, Fig. B) and set asidecotter pin and washer for later use. Insert the rod endof lifter tee through the slotted hole in the pad on therear mower frame and secure with the cotter pin andwasher as shown.

4. Fasten Rear Mower Pull Rod (6, Fig. B) inner leg byremoving Bolts (7, Fig. B) and reinserting it throughpull rod and attaching flanges on tractor axle. Notethat Spacers (8, Fig. B) must be in each pivot point toallow free movement of the pull rod.

5. Attach Pull Rod (6, Fig. B) to Pivot Tube (9, Fig. B) withPin (3, Fig. K on page 17) and Spacers (1, Fig. K).NOTE: Before completing assembly, it will be neces-sary to refer to the rear Mower Drive Belt Tensionsection and Figure K, page 17 for adjusting belttension.

6. Install Rear Mower Belt (10, Fig. B) from CountershaftPulley (11, Fig. B) to outer Drive Pulley (12, Fig. B).Idler Pulley (13, Fig. B) must ride on top of lower beltto provide proper tension. NOTE: It will be necessaryto raise rear mower to allow enough slack to get beltover pulleys.

SEAT

1. Fasten Seat (15, Fig. B) to seat mounts by threadingfour 5/16" x 1" Hex Bolts (16, Fig. B), through 5/16"lockwashers, through holes in seat mounts and intothe threaded holes in the bottom of the seat.

68OMCE-10/01-35012

OPERATION

FIGURE C

The following is a description of the machine controlsand their function. Refer to Figure C.1. Engine Clutch Lever (labeled Mowing Clutch) –Engages power for travel and mowing. Down position isdisengaged and up position is engaged. IMPORTANT –Engage slowly before full engagement. Always disengagethe drive when stopping or leaving the machine. SeeCaution Decal.

The engine clutch lever has an electrical interlock andengine will not start if clutch is engaged. For added safety,the interlock system should be checked periodically toensure that it is adjusted to function properly.2. Wing Mower Clutch – Engages drive to wing mowers.Pull lever back and down to engage. Never engage driveunless wing mowers have been lowered to cutting position.3. Ignition Key Switch – Provides a means to secure themower when unattended. Turn the key clockwise tounlock the ignition.4. Throttle Control – Regulates mowing and travel speeds.Moving the control handle back or lowering it will reduceengine speed for starting and idling engine. Push forwardto increase engine speed. Never operate mower at speedsfaster than necessary to do a good, safe job.5. Brake – Is designed to slow the mower and lock the rearwheels in the full stop position. Depress the foot pedal toengage. Note: It is best to slow the mower with the throttleand then disengage clutch lever before applying brake.This prevents excessive wear and engine overload.

6. Parking Brake Lever – Provides a lock for the brake.Push brake lever forward, over center, to lock. Pullingbrake lever back, toward the rear of the machine willdisengage the brake. 7. Shifter Lever – Located on the mower differential, thiscontrol has three positions: Forward, Neutral (centerposition), and Reverse. The lever must be pulled towardthe center of the machine to clear the notch in the stop discand positioned securely in the new notch.IMPORTANT: Never shift while machine is in motionbecause it could cause damage to the gears. Alwaysdisengage engine clutch before attempting to shift. 8. Rear Mower Clutch Shifter Lever – Engages driveto the rear mower. Pull lever forward and toward thecenter of the machine to engage sliding jaw clutch. Todisengage, pull lever forward and out to engage lockingpin. Never engage the drive unless the rear mower hasbeen lowered to the cutting position. 9. Rear Mower Lifter Handle – Raises rear mower to thetransport position. Pull handle up, forward and over centerto lock it in an up position.10. Wing Mower Lifter Handles – Raises wing mower tothe transport position. Lift wing mowers until they can besecured with hooks on frame.

Moving machinery can be dangerous if not operatedproperly. Follow all safe operating suggestions listed onSafe Operation Practices, Page 6.


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grease be checked once each year. Check grease levelby loosening the bolts in the differential case flanges andspreading case halves. It is not necessary to totallydisassemble the case or remove the wheels for thisinspection. Add Multi-purpose Gear Grease such asPennzoil No. 303 or equivalent if necessary. Total greasecapacity is 1-1/2 pounds.

Do not use oil in the differential case in placeof grease–it will leak through the seals.

MAINTENANCELUBRICATION

Figure D shows the top view of the 68" Triplex Mowerwith guards removed. Lubricate the machine at therecommended locations and intervals using the properlubicants to ensure maximum service and long life of yourmachine. Refer to the engine manual (separatelyfurnished) for proper lubrication and maintenanceinstructions.

Since the mower does not operate at high speeds, thegrease level in the differential is not critical providing thatthere is sufficient grease to coat the gears.

Unless leakage is evident, it is recommended that the

FIGURE D

LUBRICATION CHART

ITEM GREASE OIL FEQUENCY

1

2

3

4

8 Hours

8 Hours

30 Hours

YearlyGear Grease

Figure E shows the top view of the leftwing mower with guards removed andshows the proper lubrication locations.These areas on both wing mowers mustbe free of dirt and grass clippings and bewell lubricated for proper drive belt ten-sion and operation. Support collars for thewing mower pull rods must be kept inalignment to maintain belt tension.

IMPORTANT

FIGURE E

68OMCE-10/01-35014

BED KNIFE REPLACEMENT

FIGURE F

When the bed knife becomes damaged or too worn tokeep sharp, it must be replaced. Design improvementshave made bed knife replacement easier with bolt-onconstruction. Follow the procedure below.

1. The backbar (1, Fig. F), bed knife (2, Fig. F) andfasteners have been assembled at the factory undertension. To ease replacement and prevent misalign-ment of components, the leading edge of the backbarmust be tack welded two or three places before the oldfasteners are removed.

2. Remove shoulder nuts (3, Fig. F) and flat headscrews (4, Fig. F). If shoulder nuts are badly rusted or

corroded, they may have to be cut off and screwsdriven out to be removed.

3. Clean the bottom surface of the backbar formaximum metal contact with the new bed bar.

4. Fasten the new bed knife to the bottom of thebackbar in the position shown (bent edge up). Shoul-der of shoulder nuts must be seated firmly in thebackbar and screws must be flush with the bottom ofthe bed knife.

5. Torque shoulder nuts 35 to 40 ft/lbs.


15

FIGURE G

INTRODUCTION

Back lapping is a very important step in maintaining sharpreel blades on the rear and wing mowers.

This procedure should be performed when the reel bladesand the bed knife become slightly rounded and the grassis not cut cleanly with only a slight bed knife adjustment.Also, after grinding the bed knife and reels, you shouldback lap to establish a perfect match between the bedknife and reel blades.

RECOMMENDED STEPS

1. Adjust the bed knife to the reel so that the bed knife islevel with the reel and light contact is maintained.

2. Reels must be run in a reverse direction to be lapped.Remove the lower drive belts and attach a back lappingmachine (not supplied by National Mower) to the reels.Follow the instructions furnished by the machine manu-facture.

FIGURE H

Many types of compounds are available for lapping.However, we recommend a good pre-mixed water solublecompound. Many different grit ranges are available. Pre-mixed compound saves the time required to mix, eliminatesthe waste of abrasive, rinses off easily with water and isavailable in all grit ranges from course to extra fine.

4. Stop the reel and examine both bed knife and reelblades to see that the cutting edges are uniformly sharp.If not, gradually tighten the reel adjuster bolts (see FigureI, Page 16) and repeat Step 3 untill the proper sharpnessresults.

5. Rinse off the compound thoroughly with water toremove all abrasive. Check for sharpness and readjustthe bed knife if necessary. Reel to bed knife contactshould be adjusted to easily cut a sheet of paper (seeAdjustments, Page 16 for detailed instructions).

3. Apply the lapping compound with the reels running,using a 2" or a 3" brush. Apply the compound evenly to themoving blades.

Be extremely careful not to let the brush, yourfingers or your clothing get caught in the reels.Use approved safety glasses to protect youreyes from flying particles and abrasives.

GRINDING

Reels must be ground at 25° in the direction shown belowby the arrow in Figure G. Back grind until reel blades arefree from roundness, dents and nicks. Spin grind toremove all burrs. All blades must be on the same diam-eter.For maximum cutting efficiency, grind bed knife top andfront edges at 5° as shown in Figure H.

BACK GRIND IN THEDIRECTION

OF THE ARROW AT 25O

Note centerlinePOSITION OF

REELTO THE BLADE

25O

5O

GRIND BED KNIFEAT ANGLES SHOWN

5O

LAPPING PROCEDURE

68OMCE-10/01-35016

ADJUSTMENTS

To ensure safety, all of the following adjust-ments must be made only after the engineclutch lever has been disengaged and theignition key and spark plug wire have beenremoved.

HEIGHT OF CUTThe height of cut is variable and may be adjusted on

both wing mowers and the rear mower by loosening thetop and bottom Adjusting Nuts (1, Fig. I) which hold RollerAdjusters (2, Fig. I) in Roller Brackets (3, Fig. I). Roller (4,Fig. I) may then be moved up and down.

It is important to get all rollers adjusted to the sameheight so that there will be uniform cutting across the

FIGURE I

NOTEGuards removed or cut

away to show detail

entire width of the mower. Do not adjust by sight. Place themower on a hard, level surface. Loosen the AdjustingNuts (1, Fig. I) on each side of reel assemblies and placea board or gauge plate of the desired height under eachbed knife back bar. Tighten bolts securely.

REEL TO BED KNIFE ADJUSTMENTThe reel is adjusted to a fixed position bed knife. This

construction allows a more rugged and durable frame andretains the proper adjustment longer. The Reel AdjusterBolt (5, Fig. I) regulates reel distance from the bed knife.

To reduce the distance, turn the upper hex adjuster nuton each side of the reel down. Proceed slowly and do notoveradjust—use about 1/8 of a turn on each side at first.Do not adjust one side more than the other unless the reelis obviously out of alignment. Do not get the reel so tightthat it is hard to turn by hand. A too tight reel will wear muchfaster. Ideally, the reel should “wipe” or lightly touch thebed knife. It is not necessary to adjust or change theposition of the lower adjustment nut.

Proper cutting action may be tested by holding paperstrips between the reel and the bed knife. Turn the reel byhand and check to see if the assembly cuts the paper allthe way across the width of the bed knife. Make sure thatthe adjusting and the locking nuts on both side aretightened securely.

Handle reel assemblies carefully withprotective gloves.

Reels rotate freely and are very sharp.Special care should be taken in the area

where the reel contacts the bed knife.

REEL END PLAY ADJUSTMENTWith extended use, normal wear of the reel bearings

will cause end play. This condition could cause unevenwear to mower parts and uneven cutting of turf.

Test for end play periodically by trying to move the reelfrom side to side in the frame. If there is ANY movement,adjust the bearings by loosening the lock nut on theadjustment bolt (6, Fig. I) which is located on the insideright end of the reels, and turning the adjustment bolt INone half turn or less. Do not overtighten. An overtightenedbearing will cause excessive bearing wear. Test again forend play and if reel is rotating freely and end play is notnoticeable, tighten the lock nut.


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BRAKE ADJUSTMENT

The foot brake is properly adjusted if it slows themachine when depressed and can be locked when thepedal is depressed fully.

Adjust brake tension by removing cotter pin and brakepedal pin and turning brake clevis located under pedal onbrake rod. When adjustment is complete, attach clevis topedal with pin and cotter pin.

WING MOWER DRIVE BELT TENSION

Proper Belt tension allows mowers to be driven withoutslippage but loose enough to be deflected slightly at apoint midway between the pulleys. An overtight belt willcause excessive bearing wear and a slipping belt causesexcessive belt wear. IMPORTANT: Never allow oil to geton the belt which could cause slipping.

Adjust tension by loosening set screw (Fig. E) in thewing mower pull arm, sliding the mower rearward andretightening set screw.

REAR MOWER DRIVE BELT TENSION

Follow the recommendations above for determiningproper tension and refer to Figure J.

Spacers (1, Fig. J) are provided on the rear mower PullRod (2, Fig. J) to adjust the belt tension. Remove Pin (3,Fig. J) from the end of the pull rod and slip out the pull rodfrom the Pivot Tube (4, Fig. J). Move as many spacers asnecessary to the location indicated and reassemble.

ENGINE DRIVE BELT (Engine to Main Countershaft)

Belt tension is increased by loosening the four enginemounting bolts and sliding the engine forward in theslotted frame holes. Test for the proper tension as detailed

for the wing mower adjustment. When tension is correct,tighten all the bolts securely.

MAIN DRIVE BELT (Main Countershaft to Rear Drive)

Belt tension is increased by loosening the four boltsholding the Main Countershaft Housing (45, Fig. 3) andsliding the housing forward in the slotted frame holes.NOTE - It will probably be necessary to loosen or removebelt guards to reach the adjustment bolts. Also, if this beltis adjusted, it will probably be necessary to readjust theengine belt.

FRONTOF

MACHINE

NOTEGuards removed

to show detail

FIGURE J

68OMCE-10/01-35018

Engine will not start Turn ignition switch to onEnsure that there is sufficient gasoline (petrol) in the tankMake sure safety switch is making contact and mowing clutch is downLook for a loose wire on Ignition or spark plug wire not connectedOperator must be positioned on seat to depress presence switchesInterlock system inoperative—check wiring, see Figure K

Tractor will not move Gear selector must be in one of the drive positionsforward Engine drive clutch must be engaged (rearward and up)

Drive belts too loose (see page 17)Visually check to see that pulleys are not slipping on shaftsIf everything above is OK, check for a damaged gear in the gear box

Tractor will not move Same as above. If all of the above check OK, check the reverse gear in therearward gear box

Tractor will not stop Ensure that the main clutch is disengaged (brake will not stop engine)Brake adjustment or service may be needed (see page 17)

Wing and/or rear mow- Bed knife to reel position may be out of adjustment (see page 16)er will not cut Drive belts or drive chains may need tightening

Visually check that both the drive pulleys and the shafts are rotating

Cutting units will not turn. Clutches may not be engagedLook for anything that could be jammed between the reel and the bed knifeDrive belts or drive chains may need tighteningVisually check that both the drive pulleys and the shafts are rotating

Units will not stop turning Disengage all clutches

Uneven cut Height of cut not the same on each cutting unit (see page 16)Check to see if any part is bentSomething jammed in cutting unit pivots, not allowing them to float

Cutting Units

Situation Things To Check

All adjusting must be made with the engine off.Do not do any investigation of the working parts of the machine with the motor running.Always turn the engine off!

Situation Things To Check

Tractor Unit

TROUBLE-SHOOTING

Electrical System (DL 68" only) Check wiring connections and switch operation—see Figure 9, page 34


19

PARTS LIST

Note: For your records and future ordering, fill in the following information.

DATE PURCHASED MODEL NO. SERIAL NO.

ORDERING INFORMATION

When ordering replacement parts, always furnish:1. Your complete name, address and phone number.2. Model Number and Serial Number (stamped on the main frame

rear axle gusset below seat).3. Part Number (it is recommended that the correct number be verified

with a current Master Price List).4. The full Description of the part.5. Quantity desired (quantity shown is the total number of parts con-

tained in the particular view shown).

If the Part Number and the Description of your order do notagree, the Part Number will be used to fill your order.

FIGURE K

INTERLOCK

CONNECTOR

INTERLOCKMODULE ASSY.

204988

GROUND

TOKEY

SWITCH

NEUTRAL STARTSWITCH N/O

07035

ENGINE

OPERATOR PRESENCESWITCH N/O

07035

OPERATORPRESENCESWITCH N/O

07035

Yellow

YellowBrown

Red

YellowBlack Black

A B C D E F

68OMCE-10/01-35020

FIG

UR

E 1

WH

EN O

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G, S

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E M

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EL A

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IAL

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ERS

OF

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MO

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FIG

UR

E 1

— F

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& R

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1 1 2 1 2 6 1 1 2 1 1 1 1 1 1 4 2 2 1 1 1 1 1 1 — 1 1 1 1 1 1 2 2AR

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Item

Des

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Part

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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36

68OMCE-10/01-35022

WH

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FIG

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E 2


23

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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 34 35

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Item

Part

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Des

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FIG

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EN

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Item

Part

No.

68OMCE-10/01-35024

WHEN ORDERING, STATE THE MODEL AND SERIAL NUMBERS OF THE MOWER

FIG

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68OMCE-10/01-35028

FIGURE 5


29

________________________________________________________________________________________________________________________________________

_______________________________________________________________________________________________________________________________________

________________________________________________________________________________________________________________________________________

______________________________________________________________________________________________________________________________________________

____________________________________________________________________________________________________________________________________________

______________________________________________________________________________________________________________________________________________

_____________________________________________________________________________________________________________________________________________

________________________________________________________________________________________________________________________________________________

1 201513 BRACKET, Shield 42 200235 UPRIGHT, Shield 43 203250 ROLLER 24 203248 ROLLER BRACKET, L.H. 25 302847 ADJUSTER, Roller, L.H. 2

302846 ADJUSTER, Roller, R.H. 26 201775 FRAME, Bed Knife, Bolt-on 27 201460 SCREW, Flat Head 14

201802 NUT, Bed Knife Screw 148 201504 BED KNIFE, 21", 29 04549 SPRING, Reel Adjusting 2

10 200236 REEL TAKE-UP ASSEMBLY 411 201734 REEL CARRIER ASSEMBLY, Left Hand 212 06120 BEARING, Reel, (Includes Race) 413 200296 REEL ASSEMBLY, 6 Blade 214 201781 FRAME, Wing Mower 215 200256 ADJUSTING SCREW & NUT, Bearing 216 201437 TAKE-UP WASHER, Reel Bearing 217 201383 CAP SCREW (Special), Pulley Scraper 218 200287 PULLEY SCRAPER 219 201735 REEL CARRIER ASSEMBLY, Right Hand 220 03932 BELT, A35, Wing Mower 221 03601 PULLEY 222 201520 SHIELD, Right Hand 1

201521 SHIELD, Left Hand 123 203172 ROLLER BRACKET, R.H. 2

Item DescriptionPart No. Qty.

FIGURE 5 — WING MOWERS

68OMCE-10/01-35030

___________________________________________________________________________________________________________________________________________________________

1 203728 SKID BAR, L.H. 12 202959 SHIELD, Wing Mower 33 201585 SKID, Mower 24 203727 SKID BAR, R.H. 25 202410 GUARD, Inside, Rear Mower 16 202281 CHAIN GUARD, Rear Mower 1


FIGURE 6 — SKIDS, REEL END SHIELDS & GUARDS

FIGURE 6


31

________________________________________________________________________________________________________________________________________

_______________________________________________________________________________________________________________________________________

_________________________________________________________________________________________________________________________________________

______________________________________________________________________________________________________________________________________________

___________________________________________________________________________________________________________________________________

1 07065 KEY SWITCH 12 07064 AMPMETER 13 07063 HOURMETER 14 09098 DASHBOARD 15 09099 GUARD, Main Belt 16 201994 EXTENSION, Main Belt Shield 17 201996 STEERING WHEEL, DL68 18 204987 BRACKET, Seat Switch 19 07035 SAFETY SWITCH, Seat 2

10 09101 COVER, Battery 111 201754 HOLDOWN, Battery 112 201582 BATTERY BOX 113 08057 ROD, Side Post Battery 214 201925 FOOT REST, Left 115 07237 TIRE, Deluxe Wide 216 07572 INTERLOCK 1


FIGURE 7 — DL 68" RUNNING GEAR & MISC. PARTS

FIGURE 7

68OMCE-10/01-3503226

________________________________________________________________________________________________________________________________________

_______________________________________________________________________________________________________________________________________

_________________________________________________________________________________________________________________________________________

______________________________________________________________________________________________________________________________________________

1 09100 GUARD, Engine Clutch 12 201881 RETAINER, Mowing Belt 13 201884 RETAINER, Transport Belt 14 201890 MOUNT, Belt Guides 15 201872 STEP PULLEY, Main Countershaft 16 03603 PULLEY, Transport, Main Countershaft 17 02507 Washer, 10 GA. 28 03502 O-RING, 7/8" Dia. 29 06101 NEEDLE BEARING 2

10 03902 BELT, Drive, B66 111 03655 PULLEY, Main Countershaft 112 04013 KEY, Woodruff, #11 313 201871 COUNTERSHAFT, Main 1


FIGURE 8 — DL 68" DRIVE PARTS

FIGURE 8


33

14 201740 HOUSING, Main Countershaft 115 200208 KEY, Square, Engine 216 03926 BELT, Engine, Transport, 6841 Gates Power Rated 117 202071 PULLEY, Engine, Transport Belt 118 03903 BELT, Engine, Mowing, 6844 Gates Power Rated 119 03609 PULLEY, Engine, Mower Belt 120 202780 BELT GUIDE WELDMENT, Engine 121 202446 STUD, Belt Guide 122 201946 BRACKET, Idler Pivot with Bushings 123 200530 GUIDE, Belt 124 202441 SPRING, Transport Pedal Return 125 03608 PULLEY, Idler 126 201721 FOOT LEVER 127 201728 ARM, Idler, Lower Countershaft 128 201730 ARM., Idler, Mowing Belt 129 03607 PULLEY, Clutch Lever 130 201718 PULLEY LEVER, Transport 131 201889 GUIDE, Belt 132 201919 ROD, Transport Clutch 133 202440 SPRING, Transport 134 201966 PEDAL, Transport 135 200135 COUNTERSHAFT, Lower 136 201926 CARRIER, Lower Countershaft 1

________________________________________________________________________________________________________________________________________

_______________________________________________________________________________________________________________________________________

_________________________________________________________________________________________________________________________________________

______________________________________________________________________________________________________________________________________________

____________________________________________________________________________________________________________________________________________

____________________________________________________________________________________________________________________________________

____________________________________________________________________________________________________________________________________


68OMCE-10/01-35034

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68OMCE-10/01-35036

68 sr triplex – ce owner's manual68" sr triplex – ce national mower co. 700 raymond...

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