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Drive System
Maintenance
Adjusting the Traction Drive
for Neutral
The machine must not creep when you release the traction
pedal. If it does creep, adjust it as follows:
1. Park the machine on a level surface, stop the engine,
and lower the cutting units to the ground.
2. Jack up the front of the machine until the front tires are
off the ground. Support the machine with jack stands
to prevent it from falling accidentally.
Note: On 4-wheel-drive models, the rear tires must
also be off the ground.
3. On the right side of the hydrostat, loosen the locknut
on the traction-adjustment cam
Figure 66
1. Locknut
WARNING
The engine must be running while you
perform the final adjustment on the traction
adjustment cam. This could cause personal
injury.
Keep your hands, feet, face, and other body
parts away from the muffler, other hot parts of
the engine, and any rotating parts.
4. Start the engine and rotate the cam hex in either
direction until the wheels stop rotating.
(Figure
66).
2. Traction-adjustment cam
5. Tighten the locknut to secure the adjustment.
6. Stop the engine, remove the jack stands, and lower the
machine to the ground.
7. Test drive the machine to make sure that it does not
creep.
Adjusting the Rear Wheel
Toe-in
Service Interval: Every 800 hours—Check the rear wheel
toe-in.
1. Rotate the steering wheel to position the rear wheels
straight ahead.
2. Loosen the jam nut on each end of the tie rod
67).
Note: The end of the tie rod with the external groove
is a left-hand thread.
1. Jam nut
2. Tie rod
3. Using the wrench slot, rotate the tie rod.
4. Measure the distance at the front and rear of the rear
wheels at axle height.
Note: The distance at the front of the rear wheels
should be less than 6 mm (1/4 inch) of the distance
measured at the rear of the wheels.
5. Repeat this procedure as required.
47
Figure 67
3. Wrench slot
(Figure
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