Maintenance Instructions
REPLACING/REPAIRING/ ADJUSTMENTS
4.Reinstall the solenoid. At this point, move the solenoid linkage by hand and check for any binding or dragging of the solenoid plunger and linkage. If the solenoid does not move freely, adjust the solenoid mounting position by bend- ing the mount and/or loosening the mounting bolts. The solenoid must move freely for proper operation.
5.Refer to ADJUSTMENTS of Fuel Valve Sole- noid Linkage in this section and make the fuel valve linkage adjustment for the 1/16 in. (1.6
mm)air gap with injector pump stop.
6.Reinstall the engine air intake hose. Make sure the hose clamps are tight and the hose is se- cure.
ADJUSTMENTS
DANGER
If the engine must be running to perform a maintenance adjustment, keep hands, feet, and clothing from moving parts. DO NOT wear jewelry or loose clothing.
Safety Switches
There are three (3) safety interlock switches on the tractor; Seat Switch, FSC Neutral - Park Switch, and PTO Switch.
If any of the following conditions occur during starting or operating, a safety interlock switch may be malfunctioning. Contact your Walker dealer for troubleshooting and/or replacement.
Slight adjustments can be made by carefully bending the leaf switch up or down as needed.
•With an operator in the seat, the engine starts with the Forward Speed Control (FSC) and/or the PTO engaged.
•With an operator in the seat, the engine starts but dies soon after the Forward Speed Control (FSC) or PTO is engaged.
•Without an operator on the seat, the engine starts and continues to run with the Forward Speed Con- trol (FSC) and/or PTO engaged.
•With an operator in the seat, the Forward Speed Control (FSC) and PTO disengaged and panel horn works, but the starter is not engaging.
Tail Wheel Bearing Preload
Preload the tail wheel bearings by tightening the axle nut until the wheel begins to tighten as it turns (not spin freely), then loosen the nut 1/2 to 1 turn. The wheel should spin freely without excessive end play. Lock the axle nut with the set screw in the nut.
Steering Levers
An adjustment range of approximately 3 inches is available on the steering levers - the levers can be adjusted forward or aft depending on the arm length of the operator. The levers can be adjusted by loosening the locknut at the pivot point and the locknut holding the lever in position in the adjustment slide. Adjust levers into most comfortable position and tighten both locknuts.
Adjustment
Slide
Locknut
(Position)
Locknut
(Pivot Point)
Steering Lever Adjustment
77