The instructions given in this book cover the operation of the Allis-Chalmers Model “WD” Tractor. A close adherence to these instructions will result in many hours of trouble-free operation and a longer operating life for the unit.
This book is written for the purpose of giving the operator essential information regarding the day-to-day care, lubrication and adjustment of the machine. Economical operation will be insured if these instructions are followed. Many Allis-Chalmers owners employ the dealer’s Service
Department for any work other than routine care and adjustments. This practice is encouraged as our dealers are kept well informed by the factory regarding advanced methods of servicing Allis-Chalmers products and are equipped to render satisfactory service.
Allis Chalmers WD Service Manual
It has long been recognized that the life of a tractor is largely determined by the kind of lubrication it receives. Therefore always use oil and grease of high quality, manufactured by a dependable oil company who has established a reputation for quality products and whose success depends on maintaining such quality.
In addition to using high quality oils it is also necessary to use oils of proper viscosity. Oil that is too heavy cannot reach all points to be lubricated, therefore, it will cause undue wear and engine sluggishness. Oil that is too light will not form a protective film between moving parts. For best results and to assurelubrica-tion between snug fitting parts refer tolubricants recommended in Lubrication Guide. Some parts need more frequent lubrication than other parts. Lubrication intervals outlined in LUBRICATION GUIDE pages 8 and 9 should be followed closely.
Allis Chalmers WD Factory Service Manual
Engines for Model"WD"Tractors may be secured with either a high or low compression ratio. Each is designed to efficiently burn a particular class of fuel.For best performance use the class of fuel for which the engine was designed. Standard compression engines are equipped to burn distillate, tractor fuel or low octane gasoline.
Allis-Chalmers tractors are supplied with one of two styles of manifolds. The two fuel manifold is used with standard compression engines and can be used fortrac-tor fuel or gasoline.The gasoline manifold is supplied on high compression engines and uses gasoline only. When using the two fuel manifold install the cover marked"K"when burning tractor fuel or distillate.Install the cover marked‘G” when using gasoline.
The clutch is providedfor engaging or disengaging the power of engine from the tractor. When using clutch depress pedal fully and allow tractor and clutch to come to a full stop before attempting to shift gears. Reducing engine speed to low idle before depressing clutch will help prevent clashing gears. With the engine running, push the clutch pedal forward to release clutch,Hold in this position until the clutch stops revolving. Move the gear shift lever to the desired position as indicated ontopof transmission cover. Open throttle far enough to avoid stalling. Release clutch pedal slowly to avoid jerking. The transmission clutch is provided to disengage the engine power from the transmission and rear wheels, leaving the power applied only to the P.T.O., hydraulic pump and belt pulley, if used.
The transmission clutch is hand operated and the lever is mounted to the right of the steering shaft support. Pushing lever forward disengages clutch.
When’using the belt pulley, the transmission clutch should be engaged and the transmission shifter lever placed in neutral position, Easy turns may be made by simply turning steering wheel to right or left as desired. Foot brakes are provided for making ex-tremely short turns. Turn steering wheel in direction desired and then apply brake on side towards which the tractor is being turned.Do not attempt short turns when traveling at high speeds. When using the brakes for stopping, apply pressure to both brakes so that the brakes are engaged evenly.This will bring the tractor to an even stop without skidding. The latch on brake lever is conveniently located for locking the brake in the engaged position to hold the tractor on an incline, or for belt work.
Operate engine at full throttle or nearly full throttle and select the desired transmission gear to suit the work being done. To shift to low or first gear with the gear shift lever in neutral position, disengage clutch, move gear shift lever to left and forward. Second from neutral, left and back, third gear right and forward, fourth gear to right and back. To shift to reverse, push lever to extreme right and back, always stop tractor before changing gears.Severe overloads may be thrown on engine if tractor is operated at reduced engine speeds on heavy loads.
Adjust the draw bar height to recommended height for the implement being drawn. The draw bar should be placed as near in the centerline of draft as possible. Rear wheel weights are available for securing extra traction on heavy loads.
STOPPING TRACTOR-Push clutch pedal for-ward, allow tractor to stop or if necessary apply brakes.Place gear shift in neutral position, release clutch pedal.
HAND CRANKING-Push clutch pedal down and engage pedal lock. Proceed as under “‘StartingEngine .Engage crank grasping handle withthumb on same side of crank as fingers Crank in quarter turns only, pullingupand over. DO NOT ATTEMPT TO “SPIN’ EN-GINE. When engine starts release clutch pedal lock. Do not operate engine for long periods with pedal locked forward.
OPERATING BELT PULLEY
Push clutch pedal down and engage pedal lock. Loosen belt pulley retaining screw and push pulley assem-bly into the tractor. The dealer will stamp an arrow ontractor frame and on pulley tube. These arrows must be aligned to obtain proper gear mesh. Tighten lock screw and jam nut. Release clutch pedal, The clutch pedal lock may be engaged when pulley is stopped, however the engine should be stoppedif any work is to be done on the driven machine.
OPERATING POWER TAKE-OFF
The power take-off is used to furnish power to P.T.O. driven machines and operates at a speed of 548r.p.m.at1400r.p.m.of engine. The speed 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 for engaging or disengaging. To engage the P.T.O., push the clutch pedal forward the same as for shifting gears in the transmission.Allow the clutch to stop and, if the tractoris in motion, allow it tostop.Pullupon the P.T.O. shift rod located near the steeringrod support. If the P.T.O. is engaged, do not attempt to shift transmission gears until driven machine stops. This P.T.O. will keep on running when the transmission clutch is disengaged.
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