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Mechanical or hydraulic jacks may fail to
support machine and cause a serious injury.
• Use jack stands when supporting machine.
• Do not use hydraulic jacks.
1. Disengage the PTO and set the parking brake.
2. Stop the engine and wait for all moving parts to stop
before leaving the operating position.
3. Raise the rear of the machine onto jack stands to
raise the drive wheels off the ground.
4. Disengage the parking brake.
5. Start the engine and move the throttle ahead to the
full throttle position.
6. Place the neutral locks in the full forward position
and move the speed control lever to the medium
speed position.
7. Hold OPC levers down.
Note: The OPC levers must be held down
whenever the speed control lever is out of the neutral
position or the engine will kill.
Electrical system will not perform proper safety
shut off with Operator Presence Control (OPC)
levers held down in place.
• Make sure Operator Presence Control
(OPC) levers are working when adjustment
is completed.
• Never operate this unit with Operator
Presence Control (OPC) levers held down
in place.
8. Squeeze one drive lever until an increased resistance
is felt. This is where neutral should be.
Note: Make sure you have not reached the end of
the neutral lock slot. If you have, shorten the control
lever linkage. Refer to Adjusting the Control Rod.
9. If the wheel turns while holding the drive lever
in neutral, the neutral control linkages need to be
adjusted (Figure 35). If wheel stops then go to step
12.
10. Loosen the nut against the neutral control linkage
yoke (Figure 35).
11. Adjust the neutral control linkage until the
respective drive wheel stops while the drive lever is
pulled against the neutral spring (neutral position)
(Figure 35).
12. Turn the adjusting bolt approximately 1/4 turn
clockwise if the wheel is turning in reverse or turn
the bolt approximately 1/4 turn counter-clockwise if
the wheel is turning forward (Figure 35).
13. Release the drive lever to the forward drive position
and squeeze back into the neutral position. Check
to see if the wheel stops. If not, repeat the above
adjustment procedure.
14. After adjustments are made, tighten the nuts against
the yokes.
15. Repeat this procedure for the opposite side.
1. Neutral control linkage
2. Yoke
Adjusting the Hydro Control
Linkages
Engine must be running so control linkage
adjustments can be performed. Contact
with moving parts or hot surfaces may cause
personal injury.
Keep hands, feet, face, clothing and other body
parts away from rotating parts, muffler and
other hot surfaces.
33
Figure 35
3. Adjusting bolt
4. Nut
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