Allis Chalmers WD Factory Service Manual

FOREWORD

The instructions given in this book cover the operation of theAllis-Chalmers Model “WD” Tractor. A close adherence tothese instructions will result in many hours of trouble-freeoperation and a longer operating life for the unit.

This book is written for the purpose of giving the operatoressential information regarding the day-to-day care, lubricationand adjustment of the machine. Economical operation will beinsured if these instructions are followed.

Many Allis-Chalmers owners employ the dealer’s ServiceDepartment for any work other than routine care and adjust-ments. This practice is encouraged as our dealers are keptwell informed by the factory regarding advanced methods ofservicing Allis-Chalmers products and are equipped to rendersatisfactory service.

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INDEX

BRAKESAdjustment . . . . . . . . . . . . . 2 6Operation . . . . . . . . . . . . . . 26Type. . . . . . . . . . . . . . . . . 26

CLUTCHESEngine Clutch . . . . . . . . . . . 2 6Transmission Clutch . . . . . . . . 2 6

DIAGNOSING ENGINE DIFFICULTY. . 28DRAWBAR . . . . . . . . . . . . . . . 2 7

ELECTRICAL SYSTEMAmmeter . . . . . . . . . . . . . . 1 9Battery . . . . . . . . . . . . . . . 22Cut-out Relay. . . . . . . . . . . . 21Fuse. . . . . . . . . . . . . . . . . 19Generator. . . . . . . . . . . . . . 2 1Lights. . . . . . . . . . . . . . . . 20Light Switch & Generator Control . 19Starter . . . . . . . . . . . . . . . 2 1Wiring Diagram & Information. . . 20

FRONT WHEELSAdjustment . . . . . . . . . . . . . 25Adjustable Wide Front Axle . . . . 25Lubrication . . . . . . . . . . . . . 25Maintenance . . . . . . . . . . . . 2 5Single Front . . . . . . . . . . . . 25Spacing . . . . . . . . . . . . . . . 25Tires . . . . . . . . . . . . . . . . 25Wide Front Axle . . . . . . . . . . 25

FUEL SYSTEMCarburetor . . . . . . . . . . . . . 17Fuels . . . . . . . . . . . . . . . . 16Fuel Filter . . . . . . . . . . . . . 1 6Manifolds . . . . . . . . . . . . . . 1 6

GENERAL INFORMATIONFuels . . . . . . . . . . . . . . . . 5Lubrication . . . . . . . . . . . . . 5Manifolds . . . . . . . . . . . . . . 5

GENERAL SPECIFICATlONS . . . . . 4GOVERNOR. . . . . . . . . . . . . . . 1 7

HYDRAULIC SYSTEMAdjustments and Operation

Delayed Lift . . . . . . . . . . .Drawbar Control. . . . . . . . .Hold Position . . . . . . . . . .Lift and Lower. . . . . . . . . .Linkage. . . . . . . . . . . . . .

Lubrication . . . . . . . . . . . .R a m s . . . . . . . . . . . . . . . .Remote Ram. . . . . . . . . . . .

3 23 33 33 230303434

IGNITION SYSTEMMagneto . . . . . . . . . . . . . .Spark Plugs . . . . . . . . . . . .

1 81 8

LUBRICATION & SERVICE CHART. . 6LUBRICATION & SERVICE GUIDE . . 8

OPERATING INSTRUCTIONSAfter Engine has Started-Check. .Belt Pulley. . . . . . . . . . . . .Break-in Period . . . . . . . . . .Hand Cranking . . . . . . . . . . .Light Switch & Generator Control.Operating Tractor . . . . . . . . .Power Take-off . . . . . . . . . .Starting Engine . . . . . . . . . .Stopping Engine . . . . . . . . . .Stopping Tractor. . . . . . . . . .Temperature Gauge . . . . . . . .

111 21 0121111121 0111211

RADIATOR & COOLING SYSTEMAnti-Freeze Solution . . . . . . .Draining Cooling System . . . . .Fan Belt Adjustment. . . . . . . .Operating Temperature . . . . . .Pressure Radiator. . . . . . . . .Radiator Capacity . . . . . . . . .Radiator Shutter . . . . . . . . . .Temperature Gauge . . . . . . . .

REAR WHEELSHydromatic Tractor Tires. . . . .T i r e s . . . . . . . . . . . . . . . .To Remove Rim from Wheel . . .Tread Adjustment . . . . . . . . .

1 51 51 51 41 4141 41 4

2 32 3242 4

SAFETY SUGGESTIONS . . . . . . . . 13S E A T . . . . . . . . . . . . . . . . . . 2 7STORAGE OF TRACTOR . . . . . . . 2 9V A L V E T A P P E T C L E A R A N C E . , . . 17

4

3

GENERAL SPECIFICATIONSENGINE :

Number of Cylinders . . . . . , , . . 4Bore . . . . . . . . . . . . . . . . . 4”Stroke . . . . . . . . . . . . . . . . . 4”R.P.M. . . . . . . . . . . . . . . . 1400Firing Order . . . . . . . . , l - 2 - 4 - 3Piston Displacement . . . . 201 Cu. In.Compression Ratio (Gasoline) 5-l/2 to 1

(Low Octane Fuel). . . 4-l/2 t o 1

MAGNETO:

Impulse Coupling . , . . . . . AutomaticLag Angle . . . . . . . . . . 30 degreesTiming Advance . . . . . . . 30 degreesPoint Gap . . . . . . . . . . . . . .020”Spark Plug Size . . . . . . . . . . 14mmSpark Plug Point Gap. , . .030” to .040”Spark Plug Heat Range

Gasoline . . . . . . . Autolite AN 7or equivilent

Spark Flug Heat RangeLow Octane . . . . . . . Autolite A9

or equivilent

TRANSMISSION: (Selective Sliding Gear)

First . . . . . . . . . . . . 2-l/2 MPHSecond, . . . . . . . . . . . 3-l/2 MPHThird . . . . . . . . . . . . 4-3/4 MPHFourth . . . . . . . . . . . . . .9 MPHReverse . . . , . . . . . . . . . 2 MPH

ENGINE CLUTCH: (Spring Loaded)

Single Plate - Dry DiscDiameter . . , . . . . . . . . . . . 10”

TRANSMISSION CLUTCH: (Over Center)OptionalDouble Plate - WetDiameter . . . . . . . . . . , . . . . 7”

BELT PULLEY: (Optional)

Diameter . . . . . . , . . . . . . . 9”Face . . . . . . . . . . . . . . . 6-l/2”RPM at 1400 Engine Speed . . . . . 1260

BRAKES:

Enclosed Contracting Type,Foot Operated

RADIATOR:

Capacity. . . . . . . . . . . . 3-l/2 Gal.

OIL SUMP:

Capacity . . . . . . . . . . . . 6 Quarts

TRANSMISSION, DIFFERENTIALAND CLUTCHCapacity . . . . . . . . , . , . 17 Quarts

(18 quarts with P.T.O. Installed)

FINAL DRIVE GEARS:

Capacity - Each . . . . . . . . . 1 Quart

F UEI. TANK:

Capacity . . . , . . . . . . . . . .15 Gal.Auxiliary Tank . . . . . . . . . . 1 Gal.

WHEEL TREAD:

Rear . . . . . . , . . . . . , 56” t o 90”

TIRE SIZE:

Front . . . . . . . . . . . . . 5.50 x 16”Rear... . . . . . . . . . . . . 11x28

TIRE PRESSURE:

Front. . . . . . . . . . . . . . . .28 lbs.Rear . . . . . . . . . . . . . . 12 lbs.

BATTERY:

6 Volt -- 15 Plate -- 95 Ampere Hour

HYDRAULIC PUMP (Optional)

Capacity . . . . . . . . . . . . . 5 QuartsLift Rams . . . . . . . Diameter l-1/4”R e m o t e R a m . . . . . D i a m e t e r l-3/4”

POWER TAKE-OFF

RPM at 1400 of Engine . . . . . . . 548

STEERING: (Semi-Reversible)

Ratio.. . . . . . . . . . . . . . . 12 to 1

HEIGHT

Overall . . . . . . . . . . . . 81-l/2”Height of top of Steering Wheel . . , 68”Wheel Base . . . . . . . . . . . . . 88”Overall Length . . . . . . . . . . . 128”Turning radius - With Brake . . . , 8’

The Allis-Chalmers Manufacturing Company reserves the right to make changes in theabove specifications or to add improvements at any time without notice or obligation.

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GENERAL INFORMATION

LUBRICATIONIT PAYS TO PAY A LITTLE MORE FOR QUALITY LUBRICANTS

It has long been recognized that the life of a lubricated, therefore, it will cause undue weartractor is largely determined by the kind of and engine sluggishness. Oil that is too lightlubrication it receives. Therefore always use will not form a protective film between movingoil and grease of high quality, manufactured parts. For best results and to assure lubrica-by a dependable oil company who has established tion between snug fitting parts refer to lubri-a reputation for quality products and whose cants recommended in Lubrication Guide.success depends on maintaining such quality.

In addition to using high quality oils it is also Some parts need more frequent lubrication thannecessary to use oils of proper viscosity. Oil other parts. Lubrication intervals outlined inthat is too heavy cannot reach all points to be LUBRICATION GUIDE pages 8 and 9 should

be followed closely.

FUELS FOR ECONOMY AND PERFORMANCE USE FUELS SPECIFIED FOR YOUR ENGINE

Engines for Model "WD" Tractors may be secured equipped to burn the above fuels are designatedwith either a high or low compression ratio. by the letter "K" following the engine serial num-Each is designed to efficiently burn a particular ber located on the left rear of engine block.class of fuel. For best performance use the (Example: WD110650 KA)class of fuel for which the engine was designed.

High compression engines are equipped toStandard compression engines are equipped to burn gasoline only. For average loads useburn distillate, tractor fuel or low octane gaso- 60 octane gasoline or higher. For continuedline. These fuels should have the following heavy loads use 70 octane gasoline or higher.specifications: Gravity -- 38 or higher; End These engines are designated by the letterPoint -- 525O or less; Octane Rating -- 30 or “G” following the engine serial number, (Ex-more; Gasoline -- 60 octane or higher. Engines ample: WD110650 GA)

MANIFOLD

Allis-Chalmers tractors are supplied with one uses gasoline only.of two styles of manifolds.

When using the two fuel manifold install theThe two fuel manifold is used with standard cover marked "K" when burning tractor fuelcompression engines and can be used for trac- or distillate. Install the cover marked ‘G”tor fuel or gasoline. The gasoline manifold when using gasoline.is supplied on high compression engines and

1 STEERING SP!NDLE SHAFT

7.-1 8. FRONT WHEEL19 STEERING WORM

AND GEAR

WATER PUMP

8.- 15 FILLER CAP

20. GENERATOR . STEERING SHAFTBEARING

9. BREATHER

10. AIR CLEANER

4 CLUTCH SHAFT

FUEL FILTER

16. FINAL DRIVE

2. UNIVERSAL JOINT

8.-l 5. OIL SUMP

22. OIL FILTER

Ii1 CLUTCH RELEASEB E A R I N G

5. PULLEY

1. HYDRAULIC PUMP

21. TRANSMlm ~~ __. _. .,TRANSMISSION AND DIFFERENTIAL

I:SlON CLUTCH.

LUBRICATION AND SERVICE CHART.’6

LUBRICATION AND SERVICE CHART (Cont’d.) -I

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LUBRICATION AND SERVICE GUIDE

DAILY CHECKLubricate items 1 thru 6 with Chassis Lubricant.

1. STEERING SPINDLE SHAFT2. UNIVERSAL JOINT3. LOWER STEERING SHAFT BEARING.4. CLUTCH SHAFT5. PULLEY (when in use)6. ENGINE CLUTCH RELEASE BEARING -

Lubricate every 10 to 20 hours with chassislubricant. Do not over grease. Fitting canbe reached by removing small cover atbottom of clutch housing. Lock clutch pedalforward to locate fitting 50 it may be reachedby gun.

7. FRONT WHEELS - If wide front axle is usedlubricate four king pins. (See 30 Day Check.)

8. OIL SUMP - Capacity 6 quarts. Maintainoil level to full mark on oil gauge rod. Whenusing low octane fuel drain to level of draincock located on right side of oil sump, every10 hours and refill with fresh motor oil.

Above 90°F. use SAE 40Above 32’F. use SAE 30Above lOoF. use SAE 20WBelow lOoF. use SAE 1OW

9. BREATHER CAP - Wash in gasoline and dipin motor oil - throw off excess oil before re-placing. Under extremely dusty conditions,service the breather cap twice daily.

10. AIR CLEANER - Clean and refill oil cup.Fill to level mark using motor oil of thes a m e v i s c o s i t y a s u s e d i n o i l s u m p .Under extreme dusty conditions service aircleaner twice daily. Each season removethe entire air cleaner and clean main bodyand element thoroughly. Keep all connectionsair tight.

11. HYDRAULIC PUMP - Oil used in hydraulicpump must not foam. Check daily and keepfilled to high mark on bayonet gauge or to topof filler neck on tractor not equipped withbayonet gauge. Filler plug is upper frontplug on torque tube. NOTE: This same oilalso lubricates belt pulley bearings andg e a r s . Change oil twice a year.

A magnetic drain plug is located at the bot-tom of the housing. This plug should becleaned periodically. To completely drainpump the pump control housing must also bedrained.

Above 45OF. use SAE 2OWBelow 45OF. use SAE 1OW

12. RADIATOR - Capacity 3-l/2 gallons. Draincocks are located at bottom of radiator andengine block ahead of carburetor.

WEEKLY CHECK

13. RIGHT HAND BRAKE PEDAL - Lubricatewith chassis lubricant.

14. ENGlNE CLUTCH PEDAL - Lubricate withchassis lubricant (not shown).

15. OIL SUMP - Drain and refill with fresh oilevery 60 hours when using gasoline. Whenusing low octane fuel drain completely andrefill every 40 hours. Drain plug is locatedat bottom of oil sump. Keep filled to fullmark on bayonet gauge.

Above 90°F use SAE 40Above 32OF use SAE 30Above lOoF use SAE 20WBelow lOoF use SAE 1OW

16. FINAL DRIVES - Capacity l-3/4 quarts each.Keep filled to level plug, For temperaturesabove 32OF. use SAE 140 gear lubricant; fortemperatures below 32’F. use SAE 90. Drainand refill twice a year.

17. BATTERY - Electrolyte solution should bel/4 inch above separators.

30 DAY CHECK18. FRONT WHEELS - Clean and repack with

No. 2 wheel bearing grease every 30 to 60days. (Applies to all types of front wheels)

19. STEERING WORM AND GEAR - Check every30 to 60 days. Remove cover from top offront support, maintain oil level so wormgear is one-third submerged. Use SAE 140gear lubricant. NOTE: With wide frontaxle and single front wheel use SAE #250.

20. GENERATOR - Lubricate with motor oil ofsame viscosity as used in oil sump at pre-vailing temperature. Two or three drops issufficient.

21. TRANSMISSION, DIFFERENTIAL ANDTRANSMISSION CLUTCH - Capacity 17quarts. Keep filled to level plugs. Use+SAE 8 0 E P a l l y e a r . D r a i n p l u g s a r elocated on bottom of transmission, bottomof differential and bottom of clutch housing.Drain and refill twice a year. When powertake-off is installed on transmission add one

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AIR CLEANERA clean air cleaner adds life to your engine.Service the air cleaner as mentioned in Itemnumber 10, Use the same viscosity oil as usedin the engine oil sump according to the pre-vailing temperature. Keep the oil cup filledto the proper level at all times. Do not diluteoil or use used crankcase oil. The efficiency

/ of cleaner depends on the proper viscosity oil.

LUBRICATION AND SERVICE GUIDE (Cont’d.)extra quart. Fill all three compartments 22. OIL FILTER - Replace when oil begins tothrough transmission filler plug. darken. Replacement is usually necessary

after 200 hours when operating on gasoline*his oil is sold under varied listings. Any oilfollowing U.S. Army specifications of 2-105B80 viscosity transmission oil is satisfactory.

and after 100 hours when operating on lowoctane fuel.

FILTER ELEMENT

EAFFLOIL LEVEL

BAFFLE RETAINER

AIR CLEANER

BREATHERService the breather cap daily as mentioned inItem Number 9. If breather should becomeclogged with dirt, pressure will be created in

the crankcase, causing oil leaks.

OIL FILTERInsure your engine life by regular replacement machine packed, to a specific density and suppliedof filter. The oil filter is a highly efficient unit by the Allis-Chalmers Mfg. Co. for the protectionfor the purpose of filtering abrasive particles of your engine.from the crankcase oil.

NOTE: A slight decrease in oil pressure isThe filter element consists of a metal container generally noted when a filter element is in-packed with a special long thread filtering yarn. stalled, until the element is thoroughly saturated

with oil.CAUTION: Install only a new element which is

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OPERATING INSTRUCTIONS

HYDRAULIC CO

GEAR SHIFT LEVER

AMMETER \

BREAK IN PERIOD - The tractor engine is as-sembled and tested and ready for work, how-ever for best results operate tractor undermedium loads for the first 10 to 20 hours ofoperation.. If possible it should be operatedat full governed r.p.m. of engine. If necessaryuse a lower gear to keep from overloadingengine. In cold weather the oil should bechanged after the first 20 to 30 hours ofoperation. However if the proper temperatureis maintained at all times the lubricatinginterval outlined in lubrication guide may befollowed.

STARTING ENGINE1. Before starting tractor make certain that all

points of care and lubrication outlined underdaily, weekly or 30 day check have been ser-viced as specified.

2. Close radiator shutter by turning screw cranklocated on right hand side of tractor.

3. If gasoline is to be used open valve underlarge tank. If low octane fuel is used openvalve under small tank. Move throttle controllever down about one fourth of quadrant.Place gear shift in neutral position. In coldweather hold clutch pedal down until enginestarts to relieve starter load.

4. Pull out magneto switch on instrument panel.

5. Pull carburetor choke rod located at rightside of steering column.

6. Pull out on starter pull rod located on leftside of steering column. Engage starterfirmly to insure good switch contact. Releaseimmediately when engine starts, When enginehas turned one complete turn, push choke rodforward, If weather is extremely cold morechoking may be necessary.

AFTER ENGINE HAS STARTED - CHECK

1. OIL PRESSURE GAUGE. When operatingengine look at oil gauge at frequent intervalsto make certain oil is being circulated bypump. The indicator needle should alwaysremain near the O.R. or M. in the wordNORMAL when the engine is hot and runningat its normal speed. A slight decrease willbe noted when engine idles. Do not operateunless gauge registers,

2. THE TEMPERATURE GAUGE needle shouldoperate in the green portion of gauge, andtemperature should be maintained by shutteradjustment.

3. THE LIGHT SWITCH & GENERATOR CON-TROL is located on the instrument panel, Toturn on lights pull switch to first notch. Thegenerator has two charging rates, with switchpushed all the way in the lights are off andrate of charge about 3 amperes as indicatedon ammeter, when pulled to first notch lightsare on and charging rate remains about 3amperes. When switch is pulled all the wayout about 10 to 13 amps. The high rate ofchange should be used only when the batteryis in a partially discharged condition. Inmost tractor operation the trend will be toovercharge the battery.

STOPPING ENGINE - Place throttle in idlingposition and allow engine to idle a few mo-ments. Shut off by pushing in on magnetoswitch. If using low octane fuel close valveunder fuel tank and allow engine to run untilit stops from lack of fuel. This will drainthe carburetor so gasoline may be used forstarting.

OPERATING TRACTOR - The clutch is providedfor engaging or disengaging the power ofengine from the tractor. When using clutchdepress pedal fully and allow tractor andclutch to come to a full stop before attemptingto shift gears. Reducing engine speed to lowidle before depressing clutch will help preventclashing gears. With the engine running, pushthe clutch pedal forward to release clutch,Hold in this position until the clutch stopsrevolving. Move the gear shift lever to thedesired position as indicated on top of trans-mission cover. Open throttle far enough toavoid stalling. Release clutch pedal slowly toavoid jerking. The transmission clutch isprovided to disengage the engine power fromthe transmission and rear wheels, leaving thepower applied only to the P.T.O., hydraulicpump and belt pulley, if used.

The transmission clutch is hand operated andthe lever is mounted to the right of the steer-ing shaft support. Pushing lever forwarddisengages clutch.

AMMETER

INSTRUMENT PANELWhen’using the belt pulley, the transmissionclutch should be engaged and the transmissionshifter lever placed in neutral position,

Easy turns may be made by simply turningsteering wheel to right or left as desired.Foot brakes are provided for making ex-tremely short turns. Turn steering wheelin direction desired and then apply brake onside towards which the tractor is beingturned. Do not attempt short turns whentraveling at high speeds. When using thebrakes for stopping, apply pressure to bothbrakes so that the brakes are engaged evenly.This will bring the tractor to an even stopwithout skidding. The latch on brake leveris conveniently located for locking the brakein the engaged position to hold the tractor onan incline, or for belt work.

Operate engine at full throttle or nearly fullthrottle and select the desired transmission

OPERATING INSTRUCTIONS (Cont’d.)gear to suit the work being done. To shift tolow or first gear with the gear shift lever inneutral position, disengage clutch, move gearshift lever to left and forward. Second fromneutral, left and back, third gear right andforward, fourth gear to right and back. Toshift to reverse, push lever to extreme rightand back, always stop tractor before changinggears. Severe overloads may be thrown onengine if tractor is operated at reduced enginespeeds on heavy loads.

Adjust the drawbar height to recommendedheight for the implement being drawn. Thedrawbar should be placed as near in thecenterline of draft as possible. Rear wheelweights are available for securing extratraction on heavy loads.

STOPPING TRACTOR - Push clutch pedal for-ward, allow tractor to stop or if necessaryapply brakes. Place gear shift in neutralposition, release clutch pedal.

HAND CRANKING - Push clutch pedal down andengage p e d a l lock. Proceed as under “‘StartingEngine . Engage crank grasping handle withthumb on same side of crank as fingers.Crank in quarter turns only, pulling up andover. DO NOT ATTEMPT TO “SPIN’ EN-GINE. When engine starts release clutchpedal lock. Do not operate engine for longperiods with pedal locked forward.

OPERATING BELT PULLEY - Push clutch pedaldown and engage pedal lock. Loosen beltpulley retaining screw and push pulley assem-bly into the tractor. The dealer will stampan arrow on tractor frame and on pulleytube. These arrows must be aligned to obtainproper gear mesh. Tighten lock screw andjam nut. Release clutch pedal, The clutchpedal lock may be engaged when pulley isstopped, however the engine should be stoppedif any work is to be done on the drivenmachine.

OPERATING POWER TAKE-OFF - The powertake-off is used to furnish power to P.T.O.driven machines and operates at a speed of548 r.p.m. at 1400 r.p.m. of engine. Thespeed of the P.T.O. remains at 548 regard-less of what gear the tractor is operated in.The P.T.O. is provided with a shift lever forengaging or disengaging. To engage theP.T.O., push the clutch pedal forward thesame as for shifting gears in the transmission.Allow the clutch to stop and, if the tractoris in motion, allow it to stop. Pull up on theP.T.O. shift rod located near the steeringrod support. If the P.T.O. is engaged, do notattempt to shift transmission gears until

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P. T. 0. SHAFT

POWER TAKE-OFF

driven machine stops. This P.T.O. will keepon running when the transmission clutch isdisengaged.

SAFETY SUGGESTIONS

Many hours of lost time and much suffering iscaused by the failure to practice simple safetyrules.

IT IS TOO LATE TO REMEMBER WHAT SHOULDHAVE BEEN DONE AFTER THE ACCIDENT HASHAPPENED.

1. Do not fill fuel tanks when engine is hot orwhile using a lantern or when smoking.

2. Do not attempt to spin engine when handcranking.

3. Do not attempt to oil or grease a machineor tractor while it is in operation.

4. Do not wear loose fitting clothing that maybe blown into moving parts.

5. Keep all shields and guards in place.

6. Place gear shift lever in neutral positionwhen starting engine.

7. Machinery should only be operated by thosewho are responsible and delegated to do SO.

8. Only one person -- the operator -- should bepermitted on tractor when tractor is inmotion.

9. The rate of travel on hillsides or curvesshould be regulated so there is no dangerof tipping.

10. Do not remove radiator cap when enginetemperature is above 212 F.

11. Brakes should be properly adjusted.

12. Do not drive too close to the edge of a ditchor creek.

13. Never operate your tractor in a closedgarage or shed.

14. When tractor is hitched to a stump or otherheavy load, always hitch to drawbar andnever take up slack in chain with a jerk.

15. Always keep tractor in gear when going downsteep grades.

16. Do not leave the engine running unattendedwhen any one is adjusting or repairing adriven machine.

17. Do not attempt to operate tractor unless youare in the driver’s seat.

18. Provide a first aid kit. Treat all scratches,cuts, etc. with the proper antiseptic im-mediately.

19. Always stop power take-off before leavingdriver’s seat.

20. Never stand between tractor and drawnimplement when hitching. Use an iron hookto handle drawbar.

21. Do not put on or remove belt from belt pulleywhile pulley is in operation.

22. Do not dismount from tractor while it is inmotion.

RADIATOR CAPACITY 3-l/2 gallons. Draincocks are located at bottom of radiator and onengine block ahead of carburetor. Be sure toremove cap when draining radiator.

TEMPERATURE GAUGE - The temperaturegauge is provided for a visual check onoperating temperature.

The gauge is marked in green indicatingnormal with a range of 170°F. to 220°F.

RADIATOR SHUTTER - The shutter is providedfor controlling the operating temperature ofengine. Turning the screw crank, located onright hand side of radiator to the right, opensthe shutter.

Always close shutter before starting engine.

OPERATING TEMPERATURE - LOW ENGINETEMPERATURES CAUSE CONDENSATION--SLUDGE AND CORROSION. KEEP ENGINEHOT. Always close radiator shutter com-pletely when engine is started and keep itclosed until engines reach operating temper-ature ( 170°F. when using gasoline, 190°F.when using low octane fuel). Then openshutter amount necessary to maintain thistemperature,

If burning low octane fuels, operate engine ongasoline until temperature reaches 190 F.to 200 F. before switching to low octane fuel.This is readily done by shutting valve undersmall tank and opening valve under large tank.Never open valve under larger tank beforeshutting valve under small tank as this willmix the two fuels.

The minimum operating temperatures are17OoF. for gasoline and 190°F. for low octanefuel. Strict adherence to these recommen-dations will guard against excessive dilutionof lubricating oil, condensation and corrosion

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PRESSURE RADIATOR - The pressure radiatorpermits the use of a higher operating tempera-ture. The cooling solution (pure water) willnot boil in the pressure radiator until atemperature of 230°F. is reached.

To remove the radiator cap, turn to the leftuntil it stops. Push down and continue toturn to the left until the cap is released.

Do not remove the cap when the temperatureis above 212OF. as the cooling solution willbreak into a violent boil which may splash ontoperson removing cap.

= TEMPERATURE GAUGE=

SHUTTER CONTROL HANDLE

..__.

RADIATOR AND COOLING SYSTEM

PRESSURE CAP STANDARD CAPRADIATOR CAPS

Never pour cold water in a hot engine. Cleanrain or soft water should be used in the cool-ing system if available. Hard or alkalinewater will form a scale which will impairradiation if allowed to build up in the coolingsystem. The use of washing soda will helpdissolve this scale. Where only hard water isavailable, washing soda should be used atintervals, and before the accumulation ofscale becomes heavy enough to scale off andstop up radiator passages.

If soda is used’, mix with water thoroughlybefore placing in radiator. Operate engineabout 2 hours. Drain and flush thoroughlywith clean water. Soluble oil is beneficial tothe cooling system. It will not prevent theaccumulation of lime but will retard suchformation. This water soluble oil may besecured from your Allis-Chalmers dealer.

TO DRAIN COOLING SYSTEM - Open the draincock located on lower radiator outlet and thedrain cock on motor block ahead of carburetor.

CAUTION: In freezing weather be sure todrain both places. Loosen radiator cap toprevent system from air locking, which willretard draining. Stay near tractor and makesure system is completely drained.

ANTI-FREEZE SOLUTION - If tractor is usedduring freezing weather it is advisable tofill the cooling system with anti-freezesolution. If low octane fuel is used, alcoholshould not be used in the cooling system,because of its low boiling point. When lowoctane fuel is used, a good grade of permanentanti-freeze with a higher boiling point isrecommended because of the higher operatingtemperature with this type of fuel.

FAN BELT ADJUSTMENT - To adjust loosenthe generator adjusting screw and move thegenerator away from cylinder block untilabout 1” free movement at “A " is obtained.Extreme tightness will reduce the life of thebelt, generator bearings and fan shaft bearing.If fan belt bottoms in the sheaves indicatingbelt wear the belt should be replaced.

ml.2 A TNTNC -

FUEL SYSTEM . FUELS FOR ECONOMY AND PERFORMANCE

USE FUELS SPECIFIED FOR YOUR ENGINE.Engines for Model “WD “Tractors may besecured with either a high or low compres-sion ratio. Each is designed to efficientlyburn a particular class of fuel. For bestperformance use the class of fuel for whichthe engine was designed.

Standard compression engines are equippedto burn distillate, tractor fuel or low octanegasoline. These fuels should have the fol-l o w i n g s p e c i f i c a t i o n s : G r a v i t y - - 3 8 o rhigher: End Point - 525O or less; OctaneRating -- 30 or more; Gasoline --60 octaneor higher. Engines equipped to burn theabove fuels are designated by the letter “K”following the engine serial number locatedon the left rear of engine block (ExampleWD-1106 50 KX.)

High compression engines are equipped toburn gasoline only. For average loads use60 octane gasoline or higher. For continuedheavy loads use 70 octane gasoline or higher.These engines are designated by the letter“G” following the engine serial number.(Example: W D - 1 1 0 6 5 0 G A . )

MANIFOLDS - The WD Tractor is supplied withtwo types of manifolds.

The two fuel manifold is used with standardcompression engines and can be used fortractor fuel or gasoline. The gasoline mani-fold is supplied on high compression enginesand uses gasoline only.

When using the two fuel manifold install thecover marked “K ” when burning tractor fuelor distillate. Install the cover marked “G”when using gasoline.

FUEL FILTER - The fuel filter is provided forthe purpose of keeping dirt and water fromentering the carburetor. However the bestresults are obtained by using adequate fuelstorage and handling facilties. If the fuel is

kept free of dirt and water by use of clean

1 containers and proper handling, the filter willhave little work to perform.

To clean the filter, shut off the fuel supply.Loosen the bowl retaining nut and move bailto one side.

Remove bowl, gasket and felt element. Notewhich side of the element is up and be sureto re-install with the same side up.

GASOLINE MANIFOLD -

FUELFILTER

The element can be cleaned with ordinarysoap and water and a small stiff brush. Theelement must be thoroughly dried beforere-installing.

It is well to carry an extra element on hand.This will avoid delay in the drying operation.

CARBURETOR - The Zenith Model 161 Serieshas three adjustments, one for controlling theidling speed of the engine and two for correct-ing changes in fuel and atmospheric condi-tions. To regulate idling speed of the engineadjust the throttle stop screw on inner sideof the carburetor. For correct fuel mixtureat idling speeds of engine adjust needle valveon front top of the carburetor. Turn needlein for richer mixture. Normal setting isapproximately one and one-half turns out.The main jet adjusting needle located on thelower front of the carburetor body regulatesthe fuel mixture at working speeds. Turn thisneedle out for richer mixture. Normal settingis two or three turns out depending on fueland atmospheric conditions. Always makecarburetor adjustment at normal operatingtemperature.

The adjustments of the Marvel ScheblerCarburetor Model TS159 are the same as theZenith, except for the main jet adjustingneedle located on the front upper portion ofbowl. The normal operating adjustment isapproximately one and three eighths turns out.

VALVE TAPPETCorrect clearance between valve stems androcker arms should be maintained at all times.

To adjust clearance, turn engine with crank untilvalvecloses and push rod is at its lowest posi-t i o n .

Loosen valve adjusting screw lock nut and turnscrew until there is .010" clearance betweenvalve stem and rocker arm. Tighten lock nutand recheck. The engine must be heated to itsnormal operating temperature when making thisadjustment.

Lack of compression because of leaky valvesmay be caused by either insufficient clearancebetween rocker arms and valve stems or by thecollection of carbon on the valve stems or seats.

ZENITH CARBURETOR

MAINLOAD ADJUSTING NEEDLE IDLING SPEEDey ADJUSTING SCREW

CHOKE LEVER

IDLING ADJUS

’ DRAIN COCK

-MARVEL SCHEBLER CARBURETOR -

C L E A R A N C E

ADJUSTbiG S C R E W AND LOCKNUT

.010” FEELER GAUGE

GOVERNORThe engine speed is adjustable by throttle only. To ensure good governor action it is important toThe governor, of the variable speed type, will have all linkage from governor to carburetor,control the engine speed within the range of low work freely.idle and 1725 r.p.m.

17

IGNITION SYSTEMSPARK PLUGS - The spark plugs should be

removed every 200 hours of operation, cleanedand the points respaced. The point gap shouldbe set from .030” to .040”. Make this ad-justment by bending the outside electrode.Never bend center electrode.

CAUTION: Failure to service spark plugsas recommended, causes a severe bverload tobe placed on magneto.

For gasoline use autolite AN7 or equivalent.F o r l o w g r a d e f u e l u s e a u t o l i t e A - 9 o requivalent. Incorrect plugs are shorter livedand cause poor engine performance.

Spark plug gap should be set properly; gaptoo wide will cause missing on heavy loadsand lack of power.

Gap too narrow will cause missing, pooridling and engine to die at slow speed.

The spark plugs and cables should be main-tained in good condition and free of dirt andgrease.

MAGNET0 - To time the magneto - Crank engineuntil No. 1 piston is approaching top centeron its compression stroke and mark F orfiring mark appears in center of inspectionopening in bottom of clutch housing.

The compression stroke of No. 1 piston canbe determined by removing the spark plugplacing thumb in spark plug hole. Crankslowly until air is forced past thumb. T h emark F on flywheel will be very near theinspection opening at this time. Turn untilcentered. I

- SPARK PLUG ADJUSTMENT

Remove the distributor compartment coverfrom the magneto that is retained by twoscrews. Turn magneto impulse couplingcounter-clockwise until the rotor contact linesup with the timing lug, located in upper lefthand corner of distributor compartment.Couple magneto to engine. If rotor does notexactly line up with lug, turn magneto onengine until it does. The slotted holes inmounting bracket are provided for this pur-

NO. 1ROTOR\

CONDENSER

K”l”K wwtPINION&

ADJUSTING SCREWpose.

OTOR VENTILATING HOLES

Attach number one spark plug wire to upperterminal nearest cylender block. number two

DISTRIBUTOR CAP

FMX MAGNETOto upper terminal farthest from block, numberfour to lower terminal farthest from block, four screws. If contact points are pitted orand number three in remaining terminal. In pyramided, file smooth with a fine cut file.event of difficulty in the ignition system, plugs, If points are worn or badly pitted they shouldwires having been checked, remove the dis- be replaced. Points should have .010" sepa-tributor compartment cover held in place by ration when breaker points rest on high side of

1 8

cam. Points may be adjusted by looseninglockscrews and turning adjusting screw.Reassembling distributor cap to magnetoinvolves meshing of rotor pinion with dis-tributor gear as follows: The marked toothof rotor drive gear (beveled tooth) must meshwith tooth marked “G " on rotor gear, Ifgaskets are broken they must be replaced.Make sure the vent holes are open in rotor

compartment. If these holes become plugged,the magneto will not be ventilated. The mag-neto was permanently oiled at factory andneeds no further lubrication.

For difficulties other than above mentionedremove the magneto and take it to the nearestauthorized service station for check up andrepair.

ELECTRICAL SYSTEMAMMETER - The ammeter indicates the charging

or discharging rate of battery. If ammetershould register discharge ,with lights off,disconnect the battery cable, to prevent thedischarge of battery, until the difficulty islocated and corrected. Such a condition isusually caused by a worn or frayed wiremaking a short circuit or by cut-off relaypoints being stuck together.

If ammeter fails to show a charging rate one ofthe following may be the cause:

1. Loose or corroded wire connections.2. Broken wires3. Faulty ammeter.4. Oily or gummy generator brushes or com-

mutator.5. Worn generator brushes.

Commutator and brushes can be cleaned withgrade “00” sandpaper. (Do not use emery cloth.)

LIGHT SWITCH & GENERATOR CONTROL - Thegenerator has two charging rates. These arecontrolled by the light switch.

When the light switch is pushed all the wayin, the lights are off and the charging rate isabout 3 amperes. When the switch is pulledout to first notch the lights are on and thecharging rate remains about 3 amperes.When the light switch is pulled all the wayout the lights are off and the charging rateis increased to about 10 to 13 amperes. Thehigh rate of charge should only be used whenthe battery is in a partially discharged condi-tion. In most tractor operations the trend willbe to overcharge the battery.

FUSE - The light circuit is provided with a20 ampere fuse. This fuse is located on theinside-of the instrument box.

t-

Y-

A M M E T E R

NET0

RATE CONTROL SWITCH

INSTRUMENT PANEL

1 9

ELECTRICAL SYSTEM (Cont’d.)

LIGHTS - The head lights are adjustable in orout and may be adjusted up or down, byloosening the retaining thumb screw andadjusting the lights to the desired position.

TAIL LIGHT,

WD TRACTOR WIRING DIAGRAM

WIRING DIAGRAM

WIRING DIAGRAM & INFORMATION - By re- #3 - Magneto ground switch to ground.ferring to the diagram the wires may be (White with black tracer)placed in position correctly. The wires are #4 - Light switch to headlight.identified by either colors or numbers listed (Red with white tracer to junction;below and may be checked as follows: black to light)

#l - Discharge side of ammeter to cutoutterminal (Black with white tracer).

#2 - Resistor to generator field terminal.(Green with white tracer).

#5 - Charge side of ammeter to starter(black). Short natural color with redtracer wire goes from discharge side ofammeter to fuse at terminal " B " Taillight wire, black is connected to lightswitch on terminal marked ‘S”.

STARTER - The starter very seldom causes dif-ficulty, however, if it fails to turn the engineproperly with a fully charged battery, checkall connections making sure they are cleanand tight.

If difficulty is experienced with the startingmotor, any one of the following may be thec a u s e :

1. Exhausted battery.2. Broken or loose wires.3. Loose or corroded battery terminals.4. Starter switch making poor contact.

GENERATOR - The generator charging rate iscontrolled by a resistance unit built into thelight switch. This resistance unit limits theamount of current allowed to flow through thefield coils of the generator.

The tractor is shipped with the field wire onthe generator disconnected. This wire mustbe connected in order to complete the circuit.If the battery is removed and the engine mustbe operated without the battery in place,disconnect the field wire to prevent damage tothe generator.

The generator very seldom causes any dif-ficulty, however, if it does it is usually causedby a dirty or oily commutator. To cleanremove the band over the brushes. Use grade“00” sandpaper, With engine running hold thesandpaper against the commutator. Do notuse emery cloth as emery will cause shortcircuiting,

CUTOUT RELAY - The cutout relay is mountedon the top of the generator and provides an

‘automatic switch for closing the generatorcircuit. If the points in the cutout fail toclose, the ammeter will remain at zero. Do

, not operate the tractor in this condition asdamage to the generator will result.

STARTER SWITCH

BATTERY CABLE TER

BRUSH DUST COVER

STARTER

If the points’ fail to open when the engine isstopped, the ammeter will show “discharge”.Disconnect the ,battery ground cable until thedifficulty is, corrected.

For best results, remove the generator andhave it checked by an authorized servicestation.

ELECTRICAL SYSTEM (Cont’d.)

BATTERY - The starting and lighting systemuses a six volt battery, designed and builtto meet the requirements of the tractor.

Check the electrolyte (solution) in the batteryat least once each week to see that it is atthe proper level. This level should be main-tained to lower edge of filler tube (which isabout l/4” above top of separators). Thebattery supplied with your tractor has a leadwasher type valve in the filler tube to pre-vent over filling. Never add anything to thesolution except DISTILLED or RAIN water.Boiled water will not do. The supply of watershould be kept in clean, covered vessels ofglass, china, rubber or lead.

Do not allow lighted matches or an openflame of any kind near battery cell covers.The need for frequent addition of water tobattery, indicates the charging rate maintainedis too high.

In cold weather, add water only immediatelybefore running the engine so that the chargingwill mix the electrolyte and water and preventfreezing. A fully charged battery will notfreeze in very cold temperatures, but if onlypartly charged, will freeze and be ruined atmuch higher temperatures. Weekly readingsof each battery cell should be taken with abattery hydrometer. The readings indicate

. as follows: 1.280, full charge; 1.225, halfcharge; 1.150 discharged.

By taking frequent readings with the hydrom-eter, it is possible to keep generator chargingrate so adjusted as to have battery fullycharged, but not over charged. When takingthe readings, return the electrolyte to the cellfrom which it was taken.

Due to the infrequent use of tractor in coldweather and the extra amount of electricalenergy required by starting motor, it isusually necessary to use a higher chargingrate than in summer, to keep battery fullycharged. Refer to instructions on ammeterfor charging information.

22

Keep the battery clean by using a stiff bristlebrush -- not metal. If terminals are corrodedor if the battery is acid soaked, wash withsoda solution (l/4 lb. of soda to one quart ofwater). Vent plug must be kept in place whencleaning battery. After washing battery checkgas escape holes in vent caps making surethey are open. If the battery is removedfrom tractor, disconnect the grounded posi-tive terminal first. When re-installing besure the ground cable is installed last andconnected to the positive post. Battery boxcover should be in place and tightened snuglyto prevent battery from being damaged byvibration. (Be sure that wood spacer is be-tween top of battery and cover.)

In event the tractor is not to be used for sometime, it is advisable to remove the battery,have it fully charged and stored in a drybasement or some similar place where thetemperature is to be as low as possible, butabove freezing.

REAR WHEELSTIRES - Size 11 x 28 - Air Pressure 12 pounds.

HYDROMATIC TRACTOR TIRES -As wateralone will freeze in cold weather, Allis-Chalmers Tractor tires are filled with theproper quantity of 15% calcium chloridesolution. Calcium chloride will in no wayharm the casing, tubes or valves. A mixtureof 15% calcium chloride and 85% water hasa specific gravity of 1.140 and may be testedby the use of an ordinary battery hydrometer.This mixture will form a slush at+10 F,but will not freeze at -20 F. If tractor isto be operated at temperatures below 20°F,below zero additional calcium chloride shouldbe added.

The rear tires are filled about 3/4 full ofthe solution and then inflated to the standardrecommended air pressure. To check levelturn valve about 45O from verticle as shownin sketch. This amount of solution will givethe same weight as two cast iron wheel weightson each wheel. If more weight is needed fordifficult traction conditions,wheel weights maybe added. Tire companies have instructedtheir service stations concerning liquidballast for tractor tires and they have thenecessary facilities for mixing and injectingthis fluid into the tires.

If the valve core is to be removed for anycause, it will be necessary to jack up tractorand turn the wheel, until the valve stem is ontop, otherwise the solution will be lost.

Calcium chloride and water solution assupplied in tractor tires is not dangerous,but because it may attack clothing or causeskin irritations on some persons, especiallyif it comes in contact with open cuts or sores,we urge every one to avoid coming in directcontact with it.

A remedy after having contacted this solution,is to simply wash the skin with plenty of cleanwater.

When plowing, the furrow wheel has greatertraction than the land wheel; do not decreasepressure to equalize, instead increase thepressure in the furrow wheel to 16 lbs.

High pressure will cause no damage to tiresunless slippage is excessive. Watch the treadwear and correct tire pressure if it is ex-cessive or uneven.

When mounted implements are used, addition-al pressure should be used. Use about 1 lb.

2 3

FLUID LEVEL

REAR WHEEL WEIGHT

additional air pressure for each 800 lbs. ofweight added.

Do not inflate tube when removed from tiremore than enough to make it fill out round.Tubes inflated beyond their elastic limit maynot return to their original shape and size.

To repair tubes, bevel sides of cut and slight-ly increase length and width. Buff tube length-wise of grain or mold marks. Place patchon inside of tube at least l/2” larger thanopening on each side. Knead or roll in place,fill cut with pure gum rubber and place secondpatch on outside, cutting it larger than patchon inside. Vulcanize at least 10 minutes.

REARPlace tube in tire and apply a good grade ofvegetable oil soap to base of tube and insideof tire. Place on rim and adjust tube and tireevenly all around. Inflate to seat tire on rimthen deflate. Tire may then be filled withcalcium chloride in usual manner or inflatedto recommended pressure.

REAR WHEEL TREAD ADJUSTMENT - Thepower of the tractor may be applied to thewheel to increase or decrease tread width.

Remove the clamps from the guide. Turn thefour eccentrics counter-clockwise as far aspossible. Place the tractor in reverse or low,depending on whether spacing is to be madewider or narrower. Hold brake on oppositewheel and engage clutch. It sometimes helpsto engage clutch suddenly to start movementin the wheel. If intermediate positions areneeded install the clamp in the desired hole inguide rail and use it as a stop for locatingposition of the rim. InstalI second clamp onopposite side. Tighten the eccentric in aclockwise direction. Turn eccentric overagainst its stop. If the remaining eccentricscannot be turned fully against the stop, re-turn to stop‘ in counter-clockwise direction.The eccentric must be turned against stopto be self locking. Additional spacing of 70”to90”may be secured by turning the dishedwheel out”. To make this change raisetractor from ground and block securely.Place the wheel on opposite side of tractor.This will keep direction of tire tread correct.

REAR WHEEL

The direction of travel should be with the openend of “V”towards the rear, (when viewingtop of tire).

TO REMOVE RIM FROM WHEEL - Looseneccentrics and remove clamps. Removethree of the four wheel brackets. To removewheel brackets, remove the two bolts andslide bracket out along rail. Do not lose theeccentric block.

I+ 85”

REAR WHEEL TREAD SPACING

24

FRONT WHEELSLUBRICATION - Clean and repack with #2 wheel

bearing grease every 30 to 60 days (appliesto all types of front wheels). If wide frontaxle is used lubricate four king pins dailywith chassis lubricant.

TIRES - 5.50 x 16 - Air pressure 28 pounds.The front tires on the “WD ” tractor are filledwith solution to the valve level when valve isat top. Enough air is added’to cause ‘a pres-sure of 28 lbs. See rear wheels for solutioninformation.

MAINTAINANCE - The front wheels are mountedon taper roller bearings. At frequent in-tervals remove weight from wheels and checkfor side play. If side play exists it will benecessary to adjust bearings.

ADJUSTMENT - To adjust bearings: Removethe hub cap and tighten nut on end of spindleuntil all play is removed and bearings havea free rolling fit; The inside of the wheelhub is provided with a felt washer to protectbearings from dirt and to retain grease inhub. This felt washer should be replaced eachseason, or oftener if necessary. The metalcupped washer is placed with the cupped sidetowards the bearings.

SINGLE FRONT - To adjust the bearings of thesingle front wheel raise the front wheel fromthe ground and block tractor solidly.

Remove wheel assembly from fork. Removeshims from between bearing retainer andwheel hub. Adjust the bearings to a freerolling fit without end play or binding.

SPACING - “WD ” tractors are equipped withreversible front wheels, and may be turnedout to fit certain row conditions such asfollowing lister ridges.

WIDE FRONT AXLE - Each time the wheeltread is changed the “toe in” of front wheelsmust be adjusted to l/8 I’. To adjust “toe in”have tractor on level ground with wheelsstraight ahead. Measure distance betweentires at front and at rear at hub height. Theyshould measure l/8” less at front than atrear. Have steering wheel in straight aheadposition and tighten clamps on drag links.To determine center or straight ahead posi-tion, count number of turns of steering wheelfrom .right to left and then turn back half thisnumber of turns.

To adjust wheel tread width, loosen drag linkclamps, remove bolts from axle center bar.

I WIDE FRONT AXLE

Slide stub axles out or in to desired width.

The second range of wheel treads given maybe secured by turning the dished front wheelwith dish out.

ADJUSTABLE WIDE FRONT AXLESpecifications:Tread . . . . . . . . . . . . . . . 52”to 77”Spacing . . . . . . . . . . . 5” incrementsWheels turned in . . . .52-57-62-67-72-77Wheels turned out . . .59-64-69-74-79-84Crop Clearance . . . . . . . . . . . 21-l/4Turning Radius . . . . . . . . 20 ’ w/brakes

25

ENGINE CLUTCH - Spring loaded - Single plate - TRANSMISSION CLUTCH - Over center - DoubleDry disc - Diameter 10”‘. plate, in oil, diameter 8”.

Lubrication Lubrication - From transmission and differentialClutch Shaft - Chassis lubricant daily. filler plug. SAE 8OE.P.

Clutch Release bearing - lubricate approxi- Operation - The transmission clutch is providedmately every 10 to 20 hours with chassis to disengage the power from the transmissionlubricant. Do not over grease. Fitting can and rear wheels, leaving the power applied tobe reached by removing small cover at the P.T.O., hydraulic pump and power pulley,bottom of clutch housing. Lock clutch pedalforward to locate fitting so it may be reached The clutch is hand operated and the lever isby gun. mounted to the right of the steering shaft

support.Operation - The clutch is provided for engaging

or disengaging the power of engine from the When using the pulley, the transmission clutchtractor. When using clutch depress pedal should be engaged and the transmission placedfully and allow tractor and clutch to come to in neutral.a full stop before attempting to shift gears.When engine clutch is disengaged all power Adjustment - See your dealer for clutch adjust-from engine to tractor is disengaged including ment - the hand lever may be adjusted closerbelt pulley. to or further from steering wheel at turn-

buckle for convenience of operator.Adjustment - Set the length of pedal rod so pedal

has 1/2”to 1”free pedal travel, measured atthe frame channel top side. If further adjust-ment is necessary see your dealer.

BRAKESTYPE - Enclosed contracting, foot operated.

OPERATION - Brake pedals located near theright toe plate for engaging the brakes. Alock is provided to hold brake in the engagedposition if required. Release pedal lock bypressing gently on relehse rod and at thesame time depress pedals further.

Right and left pedals engage brakes indi-vidually. Do not attempt short turns whentraveling at high speeds. When using brakesfor stopping, apply pressure so that thebrakes are engaged evenly.

ADJUSTMENT - Brake pedals should be adjustedto obtain equal pedal height when brake isapplied.

c

To adjust the brakes; remove the cover overthe brake housing. Turn the brake equalizingscrew in tight. Depress brake pedal twoinches. Adjust brake adjusting nut until liningcontacts drum. Release pedal. Adjust equal-

izing screw until front and rear lining hasequal clearance on brake drum. With thisadjustment any drag will be eliminated. Donot adjust brakes at pedal rod.

26

DRAWBARThe drawbar of drawn implement should beadjusted to meet the requirements of the load.(Refer to hitching height, implement instructionbook.) The line of draft effects steering andtraction. It can also cause the drawn implementto put excessive load on the tractor.

The pins may be removed from the sides of thetractor drawbar and the drawbar allowed toswing. This will allow easier steering on sharpturns with heavy loads. The tractor drawbar maybe raised or lowered, by removing the pins in thebail support and reinstalling in the desiredposition.

The drawbar is adjustable in length and shouldbe set to extend 14” beyond the end of the P.T.O.shaft when used with the P.T.O. Use shortposition for all drawbar work when P.T.O. is notused. Drawbar must be perfectly free to,slidewhen using drawbar control. When drawbarcontrol is not used keep drawbar clamp tightenedto eliminate wear on drawbar and keep universaljoints in alignment.

- A.S.A.E. DRAWBAR SETTING ~

The seat is adjustable. There are three positions1 - l/2 ” anart. Select the position most convenientfor

operator.

SEAT

27

DIAGNOSING ENGINE DIFFICULTYThe following suggestions are listed for your .-llways make one adjustment at a time and if theassistance. You can make simple adjustments adjustment made does not improve the condition,on your tractor that will improve its operation return to the original setting before proceedingand save you the time and expense of engaging a to the next adjustment.serviceman.

ENGINE FAILS TO START

Fuel valve shut off.Low octane fuel in carburetor from lastoperation,Float valve sticking.Fuel tank empty.Clogged fuel filter or fuel lines.Dirty or clogged air cleaner.Leaking or loose manifold.Engine flooded.Broken wires from magneto to engine.Wires not in proper position.Switch not turned on or defective.Spark plugs wet, dirty or broken.Magneto weak or out of time.Spark plug points not properly spaced.Magneto points pitted, dirty or improperlyspaced.

ENGINE OVERHEATED

Low water level in cooling system.Radiator clogged.Fan belt slipping.Collapsed radiator hose.Thermostat stuck.Tractor overloaded.ignition timed late.Fuel mixture too lean.Weak spark.Diluted lubricating oil.Pulling heavy load at reduced R.P.M.Water pump impellor vanes broken.

GENERATORFAILSTOCHARGE

The cut-out relay, attached to generator case,prevents the battery from discharging through thegenerator when generator is idle.

If ammeter fails to show a charging rate one ofthe following may be the cause:

1. Loose or corroded wire connections.2. Broken wires.3. Faulty ammeter.4. Oily or gumm y generator brushes or

commutator.5. Worn generator brushes.

Commutator and brushes can be cleaned withgrade “00” sandpaper. (Do not use emery cloth).

STARTER FAILS

The starting motor seldom causes any difficulty,but if it should, any one of the following mayhthe cause:

1. Exhausted battery.2. Broken or loose wires.3. Loose or corroded battery terminals.4. Starter switch making poor contact.

28

STORAGE OF TRACTORTRACTOR PROTECTION IS POCKET-BOOK PROTECTION

If tractor is stored for any length of time, a fewprecautionary measures are helpful in pre-serving various parts, also in avoiding futuredifficulty.

1. Store tractor under cover. If impossible toplace tractor under cover, be sure to coverair stack and exhaust pipe.

2. Drain radiator and engine block.

5. Block tractor up to remove weight from tiresand to keep tires from contact with moistfloor.

6. Remove battery and store as recommendedunder ‘Battery ‘.

7. Remove spark plugs and pour a small quantityof light motor oil on piston tops. Crank engineover a few times and replace spark plugs.

3. To avoid gum content collections, drain both 8. When tractor is removed from storage itfuel tanks and carburetor. should be serviced throughout, including

draining and refilling the oil sump with fresh4. Leave radiator and fuel caps slightly loose oil.

to protect gaskets.

.

2 9

HYDRAULIC SYSTEM

ADJUSTMENTS - HYDRAULIC PUMP LINKAGENOTE: It is extremely important that thislinkage be correctly adjusted - otherwisesatisfactory operation cannot be obtained.

correctly set this linkage needs nor adjustment unless disturbed.)

1. Turn drewbar control screw “A ” into pump(I/ //I body.

1 2. Turn screw “I3 ” into pump body, separat-ing plates .

3. Turn volume screw “D ” out against stop.

4. Set hand lever at top of quadrant.

5. Loosen set screw at top of long rod.

6. Push down on rod to take out slack andtighten set screw. (Added rod length canbe gained by reducing bend in rod.)

7. Start tractor and extend rams.

8. Shut off tractor.

9. Push down on ram arms while loweringthe hand lever slowly.

10. Stop lever on quadrant at point where ran%unload freely.

11. Adjust with l/32” clearance betweencapscrew head and link rod. See draw-bars page 70 “A” and “B”, \

WHEN PUMP IS NOT IN USE KEEP HAND CONTROL LEVER AT BOTTOM OF QUADRANT

LUBRICATION - Check daily and keep filled to Use S.A.E. 2OW for lowest expected tempera-high mark on bayonet gauge or to top of filler ture of 45OF. Use S,A,E, 1OW fo.r tempera-

,’ neck on tractors not equipped with bayonet tures below 45OF. A magnetic drain plug isgauge. The filler plug for the hydraulic located at the bottom of the housing. Thissystem and belt pulley compartment is located plug should be cleaned periodically. Whenon the left side of tractor and is the upper completely draining,the pump drive housing,forward of the three filler plugs. (Refer to the pump control housing must also be drained,

:’lubrication guide,) as oil trapped in pump control housing cannot

be drained by removal of the magnetic plug.

30

12. Loosen set screw in short rod.

13. Turn plates and lock together with screw“B ‘I, being careful not to move hand lever,

14. Rotate plates to detent position.

put correct preload on spring when cap istight. Adjust link rod to pump so it hasl/32” clearance between pin and end of slotwhen screw “A” is turned into pump body.(If link rod is too long it will decreasemaximum load. If it is too short, it maybreak control linkage.)

15. Lock set screw in short rod securely.

16. Check drawbar control linkage by firstloosening both capscrew at front of drawbarspring and noting distance between cap andadjusting washers with sprin at free length.This distance should be 1 P8” to 3/16’ to

NOTE: Misadjustment of these linkages willeffect the operation of system. If unit willnot lift, lifts slowly or maximum load cannotbe obtained, recheck linkage adjustment. Besure drawbar is free to move forward andback without binding.

LOWER IMPLEMENTS BEFORE MAKING ADJUSTMENTS

DRAWBAR CONTROL

For Plows, Listers, Bedders

Turn Screw “A” out of body.

Turn Screw “B” into body sepa-rating plates.

Turn Screw “D” out as far aspossible.

.’

HOLD POSITION DELAYED LIFT

For Mowers and Pull TypeImplements

Cultivators

Turn Screw “A” into body.

Turn Screw “B” out of body lock-ing the plates together.

Turn Screw “D” out as far as pos-sible.


Turn Screw “B” out of body lock-ing plates together.

Turn Screw “C” in to secure de-layed lifting of rear cultivatorbar.

Turn Screw “D” in to get furtherdelay.

PUMP ADJUSTMENT CHART

The chart above outlines the pump adjustments CAUTION: Never attempt to set pump adjust-to obtain either drawbar control, hold position or ments with implement in the raised position. Todelayed lift. Select the setting most suited to do so may drop implement and cause injury tojob. This chart is also on the side of the battery person making adjustments or nearby persons.box.

HYDRAULIC SYSTEM (Cont’d.)

TO ADTUST PUMP TO LIFT AND LOWERLift-and lower may be obtained with anysetting as long as volume control screw ‘b”is turned out far enough to allow pump todeliver oil to rams. However, to adjust,!turn screw “A ” into housing, turn screw “Binto housing separating plates, turn screw ‘c”out against stop and turn “D ” out as far aspossible.

To Operate Lift and Lower:Set pump for lift position. Raise hand leverto top of quadrant to lift. Pull hand lever tobottom of quadrant to lower.

TO ADJUST FOR DELAYED LIFTTo adjust for delayed lift, turn screw “A” into lock seat in housing. This screw locks outdrawbar regulation. Turn screw ‘8” untilthe two plates are locked together and screwis free of housing. These plates operateagainst a detent ball and spring which can befelt on the hand control lever. Turn screw‘C ” out against stop. Turn screw ‘D” out asfar as possible. With the pump in this positionthe front and rear gangs will lift together orthe rear gang may lift first.

- L I F T & L O W E R ADJUSTMENT-

To cause the front gang to lift before reargang, slowly turn screw ‘%” inward. Ifwhen screw ‘!Z” has been turned in as faras possible there is still uncultivated groundbetween the place where the front gangs liftedthe place where the rear gangs lifted screw‘D” may be adjusted. This screw cuts downthe output of pump and will increase the delaybetween the front and rear gangs. It is pos-sible to turn this screw too far or far enoughto prevent pump from delivering oil.

To Operate Delayed LiftRaise hand control lever to top of quadrantto raise both front and rear gangs. To lower-move hand control lever down until detentball is felt on hand control lever. This dropsthe front gang only. When the tractor movesforward until the rear gang is above the spotwhere front gang was lowered the hand controllever may be pushed to bottom of quadrant,lowering rear gang.

32

DELAYED LIFT

Cultivators


Turn Screw ‘3” out of body lock-

ing plates together.

Turn Screw “C” in to secure de-layed lifting of rear cultivatorbar.

Turn Screw “D” in to get further

delay.

TO ADJUST FOR HOLD POSITION

To adjust for hold position turn screw ‘!A” inlocking to housing, turn %” out locking platestogether, turn screw ‘c” in to about mid-position and ‘b”out as far as possible. If therate of lift is too fast, screw ‘D” may beturned inward to slow lift.

To Operate Under Hold Position

Set pump for hold position, To lower imple-ment, move hand control lever down past thehold or detent position (a catch on quadrantwill be noted at hold position), With the leverin the detent position the pump is actually inthe lowering position and the load on the ramis held by the check valve in the hold positionvalve assembly. To lower, move the leverdown until desired depth is reached and thenreturn lever to detent position to hold ram atrequired setting. To raise, move lever upuntil desired lift has been secured and thenreturn lever to detent position to hold ram indesired position.

The hold position valve enables the operatorto control the remote ram and hold it in anyposition or partial extension.

TO ADJUST PUMP FOR DRAWBAR CONTROL

Turn screw “A”out until it is free from body,turn screw “B” until screw enters housingseparating plates, screw “G” may be in anyposition, however, it is best to turn it outagainst stop and screw “D” must be out topermit maximum output.

To Obtain Drawbar Control

Set the pump for drawbar control to regulatedepth and gain weight transfer. For anexample on the pickup plow move the handcontrol lever to the bottom of quadrant andset the plow through the beaming and wingingscrew to plow the desired depth and to do thejob of plowing you want it to do (Refer to PlowInstruction Book). Then slowly, while plowing,move the hand control lever up on quadrantuntil the slack is just taken out of the liftlinks. If the pull becomes greater, the plow,through the hydraulic system, has a tendencyto raise; the weight of ground plus the weightof plow through the linkage is transferred torear wheels providing more traction to get

through this tough spot which created theadditional drawbar load.

HOLD POSITION

For Mowers and Pul l Type

Implements


Turn Screw ‘3” out of body lock-ing the plotes together.

Turn Screw 9” o@ as for OS pos-sible.

DRAWBAR CONTROL

For Plows, Listers, Bedders

Turn Screw “A” out of body.

Turn Screw “B” into body sepa-rating plates.

Turn Screw “D” out os for ospossible.

33

HYDRAULIC SYSTEM (Cont’d.)

RAMS - The two lift rams are connected to therear lift shaft assembly. The left hand rammay be installed with the ram mounted for-ward so that both front and rear tools can belifted. When a ram is used in connection withhold position the ram hose must be attachedto one of the forward holes closest to screw‘C ‘I.

Ram packing nuts require only a light pressurefor sealing. Do not over-tighten.

REMOTE RAM - The remote ram for pull typeimplements is equipped with quick couplinghose connector. To disconnect pull ring oncoupler towards center of coupler and detachhose. To install, depress ring and move hoseinto place. Releasing ring will fasten hose.The hose is equipped with check valves toclose end of hoses when uncoupled preventingloss of oil. Hose removal should only be madewhen the ram is collapsed and line is withoutpressure.

A ramanchor bolt of special material is used.Keep these bolts tight.

When the hose is removed, keep the protectorcaps in place. When reinstalling hose be surethe parts are perfectly clean and that dirtdoes not enter system.

REPAIR PARTS SECTION

REPAIR PARTS

Order all repair parts for this machine fromyour local Allis-Chalmers dealer.

have prepared the following illustrationswhich identify the various assemblies and

To guide you in ordering repair parts, wethe basic parts of your tractor.

HOW TO ORDER REPAIR PARTS

When ordering repair parts for your tractor,supply the following information:

1. The tractor and engine serial numbers.

The serial number of your tractor is lo-cated at the left brake cover or the leftrear of axle housing. Give the completenumber and prefix letter. Example:WD-4004.

The engine serial number is located onleft hand side of the engine as shown below.

Give complete number and all the letters.Example: WD.185607GA

2. Mention if tractor is a standard or widefront axle model.

3. State the common name of the part youwish to order, or a description of the partand its location on the tractor.

4. Always print your name and post office ad-dress, where parts are to be shipped; alsospecify whether material is to be shippedby freight, express or parcel post.

IMPORTANT

Unless claims for shortages or errors aremade immediately upon receipt of goods, theywill not be considered.

When broken goods are received, a full de-scription of the damage should be made bythe carrier agent on the freight bill. If thisdescription is insisted upon full damage canalways be collected from the transportationcompany.

responsibility ceases upon delivery of ship-ment to the transportation company, fromwhom a receipt is received showing that ship-ment was in good condition when delivered tothem; therefore, claims (if any) should befiled with the transportation company and notwith Allis-Chalmers Manufacturing Company.The right is reserved to change the construc-tion or material of any parts where it seemsdesirable to do so, without incurring the obli-gation of installing such changes on units

No responsibility is assumed for delay ordarnage to merchandise while in transit. Our

already delivered.

Order Repair Parts By Description. Always Give the Tractor and Engine Serial Numbers.35

DRAIN COCK

I

CYLINDER BLOCKGAUGE ROD SEAL

I PUSH ROD COVER

COVER GASKET

B U S H I N GEXPANSION PLUG

\ I

SEAL RETAINER+&-;@&

CAPSCREW /

RELIEF VALVE PLUNGER

REtIEF VALVE SPRING

FRONT BEARING CAP R E L I E F V A L V E P L U G\CENTER BEARING CAP

SEAi HALFI

_. . , _-.._

REAR BEARING CAP

CYLINDER BLOCK

SET SCREW-4

FLYWHEEL/

c

~ -r& TlMlNd GEAR

I FRONT BEARING(Half)

CENTER BEARING(Half)

IREAR &WING

(Half)REAR SEAL

(Half)

RING ‘GEARCRANKSHAFT & FLYWHEEL


- S C R A P E R R I N G

PISTON

LOCK SCREW

CYLINDER LINER

- PISTON & CONNECTING ROD - CYLINDER HEAD

CoRE ‘:“” INTAKE VALVE GUIDE\

VALVE GUIDE

‘ii” DIAM. STUD

LONG STUD

Sl-iORT STUD(‘i” Dim.)

C A M

REAR PLUG THRUST SCREW

BUSHING

CAMSHAF T

Order Repair Parts By Description. Always Give the Tractor and Engine Serial Numbers.3 7

BREATHER CAP

ROCKER ARM COVER

COPPER WASHER

ROCKER ARM SHAFT

COVER GASKET

ARM SPACING SPRING

INTAKE ROCKER ARM EXHAUST ROCKER ARM

ADJUSTING SCREW

SHAFT SUPPORT

SUPPORT STUD SPRING RETAINER

INTAKE VALVE GUIDE

EXHAUST VALVE GUIDE

SNAP R INGEXHAUST VALVE SEAT

INTAKE VALVEEXHAUST VALVE

VALVES & ROCKER ARMS

Order Repair Parts By Description. Always Give the Tractor and Engine Serial Numbers.

\OIL SUMP

OIL SUMP

CAMSHAF T SCREW

TIMING GEAR COVER

TIMING GEAR COVER


39

I i/

LINK

1 CONTROL SHAFT

A .

\

OIL. SEAL BUSHING

LEATHER WASHER

SHAFT WASHER/

/

II

CROSS SHAFT

(USED 1LINK SPRING

‘RIOR TO ENGINE 24400)

SKET

GEAR 8 SHAFT

PIVOT PINWEIGHT & PIN

CLIP

GOVERNOR

LEVER KNOB

HAND LEVER & SHAFT

6 FRICTION BLOCK

-7

BELL CRANK/

GOVERNORCONTROL I


40

F I L L E R C A P + __ _ _ _GtAH 8. W A F T

No. 2 AND 4 PLUG CABLE No. 1 PLUG CABLE

CABLE ,-\(f( k-”

CABLE NlPPLi MAGNiTO

IGNITION

DRIVE

‘,--.

‘k

/

GASKET- - _ -.

;-: _ --.__ I COVER

BODY

T H R U S T COL’MR

DRIVEN GEAR

SCREEN

OIL PUMP


4 1

PRSSURE

-z.

GASKET

r/c

w OIL *FILTER

BASE GhKET \, ‘IL ‘“\

OIL TUBE

OIL FILTER & LINES


42

MUFFLER CLAMP

\ --__

M U F F L E R SUPPORT )

COVER

--

- M U F F L E R

I ‘- . . ‘x. _ ~ MANIFOLD

MANIFOLD GASKETx I

MANIFOLD STUDCARBURETOR GASKET

-CARBURETOR

INTAKE & EXHAUST MANIFOLD - GASOLINE -

MUFFLER

\ /\BRONZE NUT \,\ \

IMANIFOLD

GASKET’ ~&,~CARsURETo~l~~~

-INTAKE & EXHAUST MANIFOLD - LOW OCTANE FUEL-


4 3

THROTTLE PLATE

\

PLUG

\

SHAFT & LEVER

STOP SCREW

/IDLING SCREW

SEAT GASKET

VALVE & SEAT

AXLEIMPORTANT -

G I V E O U T L I N E N o . FLOAT YSTAMPED ON DISC ON /

THROTTLE BODY WHENGASKET

ORDERING CARBURETOR /PARTS.

WELL VENT JET

DISCHARGE JET SHAFT & FRICTION LEVER

SHAFT PACKING

EXPANSION PLUG DRAl-N COCK ‘BODY SCREW

CARBURETOR - ZENITHOrder Repair Parts By Description. Always Give the Tractor and Engine Serial Numbers.

44

ADJUSTING SCREW

IDLING SCREW

‘THROTTLE PLATE

\4’ &1 SPRING

,IBODY SCREW

PACKING

SPRING

AIVF R SEAT.-. - - _-.

’

IMPORTANT

3lVE O U T L I N E N o .STAMPED ON DISC ON

THROTTLE BODY WHENORDERING CARBURETORPARTS. FRICTION SCREW

DISCHARGE JET

SHAFT & FRICTION LEV

CHOKE PLATE SHAFT PACKING

’DRAIN COCK \EXPANSION PLUG

‘ER

CARBURETOR - MARVEL SCHEBLEROrder Repair Parts Fly Description. Always Give the Tractor and Engine Serial Numbers.

45

CHOKE ROD

L E V E R

CROSS SHAFT 8. LEVER EXTENSION ROD

CHOKECONTROL

TANK CAP

FUEL TANK

\/- c--a ---_

,A”,/ .\

1’

SET SCREW

PACKING STRIP

SUPPbRT PACK1N.G STRIP

FUEL TANK, FILTER & LINES


46

PACKI

/STRAP SCREW

SQUARE WASHER

HOOD

&J&-STACK C A P

BAIL

AIR CLEANER!Order Repair Parts By Description. Always Give the Tractor and Engine Serial Numbers.

47

C O P P E R W A S H E R

PULLEY (Adjusting Half)I F A N B L A D E S

S N A P R I N G

B E A R I N G

/B O D Y I

FAN BELTC O V E R

WATER PUMP & FAN

P/HOUSING xc ,/’

WATER MANIFOLD

MANIFOLD GASKET

\HOUSING GASKET

HEAD STUD

WATER MANIFOLD


48

UPPER HOSE

LOWER HOSE

/DRAIN COCK PLUG \

DRAIN COCK

-7f9

’ \SHELL 8. GRILL

RADIATOR & SHELL

VENT TUBE

CAPSCRE%- FIELD INSTALLATION-

PRIOR TO TRACTOR 19095

GASKET

INSPECTION COVER

THUMB SCREk BOTTOM COVER ICOVER

I1 “SED PRIOR TO TRACTOR 10595 b

ENGINE CLUTCH HOUSING


49

DISC 8, FACINGS THICK FACING

LEVER SPRING

P I V O T P I N

PRESSURE PLATE

PRESSURE SPRING

ADJUSTING SCREW BACK PLATE SPRING CUP

ENGINE CLUTCH

CLUTCH CONTROL

ADJUST ING P IN

FORK SHAFT RELEASE BEARING

SHIFTER BRACKET

SHIFTER SPRING STUD SHIFTER SPRING

PEDAL SHAFT

1 ENGINE CLUTCH CONTROL


50

COUPUNG FLANGE DRIVE GEAR FRONT OIL SEAI

CENTER BEARING AND SNAP RlNG

PltOT BEARING

REAR OIL SEAL

COUPLING SLEEVE

SLEEVE SNAP RING

ENGINE CLUTCH SHAFT

H\OUSING

P. T. 0. COVER

/eq- COPPER WASHER

-TRANSMISSION CLUTCH HOUSING


5 1

FRONT PLATE

PRESSURE WASHER

DRIVEN DIGS

SNAP RING BACK PLATE WASHER RETAINER

TRANSMISSION CLUTCH

HAND LEVER

SHIFTER & BUSHING

TRANSMISSION CLUTCH CONTROL


52

REAR COVER

HOUSING,

LEFT BRAKF CDVFR ^.^.._ ^_. ,,_ - -

<- P.T.O. COVER

TKANSMlSSION & DlFFERENTIAL HOUSING

lst, 2nd 8. REVERSE GEAR

ADJUSTING NUT

BEAR ING \

\

REVERSE IDLER SHAFT

LO’iKI

BEARINGCOUNTER SHAFT

I TRANSMISSION GEARS & SHAFTS I


RETAINER

C O V E R ,

GASKETSPACER

DETENT SPRlNG

0

F~FWARD FORK

REVERSE LUG,

INTERLOCK PLUNGER., Ih.ITLr,l nrv n,.,

TRANSMISSION CONTROL

SIDE GEAR PINION & BUSHINGTHRUST WASHER

/ /THRUST WASHER

CARRIER S H I M

BEARING CUP’

BEARING CONE

LOCKING PIN

/PIN

I \ \CASE RING GEAR BUSHING

DIFFERENTIAL


5 4

I SPRING SNAP RING

ADJUSTING BOLTI

P I N-. _. . . _ \

ANCHOR PINTOI

BRAKE SHOE LOCK

SGLE P I N/

SNAP RING

BRAKE

PEDAL LAkH

/

RIGHT PEDAL

PEDAL STOP

USED PRJOR TO TRACTOR 248OJ-

BRAKECONTROL

Order Repair Parts By Description. Always Give the Tractor and Engine Seriirl Numbers.55


,TUBE SEAL TLJRF SNAP DIMS ,nrV rrnr,,, -

/PULLEY SHAFT

INNER BEARING

SHAFT SNkP RING Q9-_ -_

BELT PULLEY

INTERMEDIATE GEAR

ROLLER BEARING

WASHER ’ SET SCREW

WASHER LOCKWIRE

IDLER GI

Sl ke H O U S I N G S T U D

IDLER GEAR SHAFT\ WGASKET

1’ 1

E R B E A R I N G

SLIDING GEARB E A R I N G C A G E S H I M

B A L L B E A R I N G

POWER TAKE-OFF


57

GEAR SMFT;;A;/y’ 7l$9 f’=$’

SET SCREW/’

SHIFTER LEVER

- POWER TAKE-OFF CONTROL

LEVER KNOB

FRICTION BLOCK

LEVER AND SHAFT

LEVER SPRING

CONTROL ROD

HYDRAULIC PUMP CONTROL


Order Repair Paris By Description. Always Give the Tractor and Engine Serial Numbers.5 9

Order Repair Ports By Description. Always Give the Tractor and Engine .Serial Numbers.60

““4’ R’NG VALVE BALL\ ADJUST’N/G

S C R E W

SEAL

/LEVER SCREW

VALVE BODY

CONTROL LEVER’ ISNAP RING

4LEVER LINK.

HYDRAULIC PUMP - HOLD POSITIONING VALVE

SUPPORT

R H. H O S E

HYDRAULIC RAM, LINES & LIFT


6 1

COLLAR \NO;E

COUP1

CLIPI

w ’ SNAP RINGSPACER

.._.. . I

END PIN

HYDRAULIC REMOTE RAM & LINES

SUPPORT BOLT

MAIN FRAME


._ , / I WORM GEAR

FRONT SUPPORT

BEARING CONE

BEARING CUP

I FRONT SUPPORT

WO’RM

SPINDLE SHAFT-

‘SET SCREW

GEAR

UPPER SEAL

KEY

BEARING CUP-@&f

LOWER SEAL RETAINERBEARING CONE

SPINDLE BLOCK

i- FRONT AXLE-STANDARD DUAL FRONT WHEELS1


m

AXLE SUPPORT

LH SPINDLE

5PKlNG WASHER

RADIUS ROD NUT

DUST COVEI\

Sfl5CREWSP!NDLE A R M \

S P I N D L E S U P P O R T4,_IL~USHING+~ ‘I

T H R U S T W A S H E R < ” ;

R H S P I N D L E .

I

ADJ 1JSTARLE F R O N T A X L E


SHAFT RETAININGWASHER

i”-~iUPPER BEARING CONE----%@~~

UPPER BEARING CUP

~/em--. STEERING WORMRETAINER GASKET

BEARING RETAINERRETAINER STUD

LOWER BEARING CUP

LOWER BEARING CON!

SEAL RETAINING WASHER

AND SHAFT

AXLE

FRONT AXLE - SINGLE FRONT WHEEL (Prior to Tractor WD-25129)Order Repair Parts By Description. Always Give the Tractor and Engine Serial Numbers.

6 5

‘!--- CAPSCREW

RETAINING WASHER + ,?&L+?

SHIM!i/

UPPER BEARING CONfi

STEERING WORM

WORM GEAR

LOWER BEARING CUP

LOWER BEARING CONE

OIL SLA,--&>

FORK SHAFT

FRONT AXLE - SINGLE FRONT WHEEL (E,ff. on Tractor WI?-25129)Order Repair Parts By Description. A/ways Give the tiacfor and Engine Serial Numbers.

66

TIRE 8, TUBE

INNER BEARING CUP

OUTER BEARING CUP HUB SEAL

F R O N T W H E E L - S T A N D A R D A N D A D J U S T A B L E A X L E S

SPINDLE

S E A L R E T A I N E R

S E A L R E T A I N E R

FRONT WHEEL-SINGLE FRONT WHEEL AXLEFRONT WHEEL-SINGLE FRONT WHEEL AXLE

BEAR ING CONE

\ I

* _ ,\‘\BEARING SHIM , ~ \/ \‘\

FRONT WHEFL

I


PIN BLOCK

SNAP R ING

CAPSCREW

WHEEL STOP

REAR WHEEL


.

WHEEL WEIGHT

REAR WHEEL WEIGHT

RIGHT ;OE PLATE4

,I

PLFTFORM

WHEEL. GUARDS, PLATFORM & TOOL BOX


1

LlNK STOP BOLTSUPPORT

L\,-/&,;;;& g$ M

e”=

iI!FIELD INSTALLATION ONLY-

Prior to Tracfor 42855

A N C H O R

h

USED PRIOR.TO TRACTOR 238881

1 LEFT BRACKET,

FORK PIN

BL?CK

I LOCATING PIN

DRAWBAR

DRAWBAR’EXTENSION GUIDE

DRAWBARS

CRANK

.&


70

SHOCK ABSORBER -.j 1 ~

RETAINER-

BRACKET COLER SPACER

S EAT

SNAP RING-BEARING +

-EFF. ON TRACTOR 41552-

UNIVERSAL JOINT

STEERING GEAR


7 1


72

TAIL LIGHTI BUJB MOLPI NG

REFLECTOR

MOLDING SCREW

SWITCH SCREW

INSTRUMENT BOX

\CORK PLUG

ELECTRIC LIGHTING


7 3

WHEEL WRENCH

GREASE GUN

SPARK PLUG WRENCH-Y

HANDLE

IJ

TOOLS

NOZZLE PACKING

I

NOZZLE CAP NOZZLE EXTENSION

GREASE GUN REPA .IR PARTS


A V O I D A C C I D E N T S

MOST ACCIDENTS, WHETHER THEY OCCUR IN INDUSTRY, ON THEFARM, AT HOME OR ON THE HIGHWAY, ARE CAUSED BY THE FAILUREOF SOME INDIVIDUAL TO FOLLOW SIMPLE AND FUNDAMENTAL SAFETY

RULES OR PRECAUTIONS. FOR THIS REASON MOST ACCIDENTS CAN BEPREVENTED BY RECOGNIZING THE REAL CAUSE AND DOING SOME-THING ABOUT IT BEFORE THE ACCIDENT OCCURS.

REGARDLESS OF THE CARE USED IN THE DESIGN AND CONSTRUC-TION OF ANY TYPE OF EQUIPMENT THERE ARE MANY CONDITIONS THATCANNOT BE COMPLETELY SAFEGUARDED AGAINST WITHOUT INTERFER-ING WITH REASONABLE ACCESSIBILITY AND EFFICIENT OPERATION.

A careful operator is the best insurance againstan accident, The complete observance of onesimple rule would prevent many thousand seri-ous injuries each year. That rule is:Never attempt to clean, oil or adjust a machine

while it is in motion,

NATIONAL SAFETY COUNCIL

76

Documents

Allis Chalmers WD Factory Service Manual