Gravely 991091 ZT HD60 Owner's/Operator's Manual page 25

4. Start the engine, run engine at full
throttle, and release the parking brake.
5. Move the steering levers from Forward
to Reverse several times to make sure
controls are free. Then return steering
levers to neutral position.
6. Check wheel(s) for movement.
NOTE: The right and left hydraulic pumps are
adjusted the same way.
7. If a wheel moves, adjust the return to
neutral mechanism on the hydraulic
pump:
a. Loosen the return to neutral screw
on the pump.
b. Slowly move the speed and
direction control bracket clockwise
or counterclockwise until the
wheel stops moving.
c. Hold the stop bracket in position
and tighten the return to neutral
screw on the pump.
8. Move steering levers from Forward to
Reverse several times and return
steering levers to neutral position.
Check wheel(s) for movement.
9. If wheel is still moving, repeat steps 7
and 8.
10. Shut OFF engine.
11. Replace drive wheels.
Axle Direction
Figure 13
Return to Neutral
Adjusting Screw
Speed and
Direction
Control Arm
GB - 25
Aligning the Steering Levers
(Figure 14)
1. Shut OFF engine. Engage parking
brake. Remove the ignition key.
2. Place seat in the service position (See
Service Position on page 20).
3. Loosen brake interlock on the same side
as steering lever to be adjusted.
4. Loosen tie rod jam nuts and turn tie rod
until steering levers are aligned.
5. Tighten jam nut on tie rod, tighten brake
interlock.
4
1
1. Tie-Rod Jam
Nut
2. Tie-Rod
3. Steering
Lever
Figure 14
3
1
2
5
4. Brake
Interlock
5. Hydrostatic
Transmission
OF3381