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Controls System
Maintenance
Adjusting the Traction Drive
for Neutral
Note: If the machine has recently had the hydraulic fluid
changed or the traction motors or hoses replaced, any air
trapped in the system will have to be worked out prior to
performing this procedure. This can be accomplished by
operating the machine in forward and reverse for a few
minutes and then replenishing the oil as required.
Note: When positioned on a level surface, the machine must
not creep when the traction pedal is released.
1. Park the machine on a level surface, shut off the
engone, and lower the cutting unit to the floor.
2. Jack up the rear of the machine until the rear tires are
off the shop floor. Support the machine with jack
stands to prevent it from falling accidentally.
Note: On 4-wheel-drive models, the front tires must
also be off the shop floor and supported by jack stands.
WARNING
The engine must be running so that this
adjustment can be performed. This could
cause personal injury.
Keep hands, feet, face, and other body parts
away from any hot parts of the engine and any
rotating parts.
3. Start the engine, set the throttle to the Slow position,
and observe which direction the rear tires rotate.
Important: Make sure that the traction pedal is in
the N
position.
EUTRAL
•
If the left rear tire is rotating, loosen the jam nuts
on the left side transmission control rod
39).
Note: The forward end of the control rod has a
left-hand thread. The rear end of the rod, which
is connected to the transmission, has a right-hand
thread.
1. Transmission control rods
•
If the left rear tire is rotating in reverse, lengthen
the rod by slowly turning the rod counterclockwise
(as viewed from the front) until the left rear tire
stops rotating or has minimal rotation in reverse.
•
If the left rear tire is rotating forward, shorten the
rod by slowly turning the rod clockwise (as viewed
from the front) until the left rear tire stops rotating.
4. Move the throttle to the Fast position. Make sure that
the wheel remains stopped or has minimal rotation in
reverse. Adjust it as required.
5. Tighten the jam nuts.
6. Repeat the procedure for the right rear tire, if required,
by using the right-side transmission control rod.
7. Stop the engine. Remove the jack stands and lower the
machine to the shop floor.
8. Test drive the machine to make sure that it does not
(Figure
creep.
Adjusting the Maximum
Ground Speed
1. Disengage the PTO, release the traction pedal to the
N
EUTRAL
2. Move the throttle lever to the Slow position, shut off
the engine, remove the key, and wait for all moving
parts to stop before leaving the operating position.
3. Loosen the jam nut on the stop bolt for the traction
pedal
40
Figure 39
position, and set the parking brake.
(Figure
40).
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