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3. Raise the rear of the machine onto jack stands
high enough to raise the drive wheels off of
the ground.
4. Disengage the parking brake.
5. Start the engine and move the throttle ahead to
the full throttle position.
6. Press and hold the 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.
7. Place the left drive lever in the full forward
position.
8. Place the speed control lever in the neutral
position.
Electrical system will not perform proper
safety shut off with Operator Presence
Control (OPC) levers fastened 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
fastened in place.
9. Loosen the front adjusting nut on left hydro
control linkage as shown in Figure 48.
10. Turn the left rear adjusting nut
counter-clockwise until wheel rotates
forward (Figure 48).
11. Turn the rear adjusting nut clockwise 1/4 of a
turn at a time. Then move the speed control
lever forward and back to neutral. Repeat
this until left wheel stops rotating forward
(Figure 48).
Note: Make sure flat part of the linkage
is perpendicular to the pin of the swivel
(Figure 48).
12. After adjusting the left hydro control linkage,
move the speed control lever forward and then
back to the neutral position.
13. Make sure the speed control lever is in the
neutral position and the tire does not rotate.
14. Repeat the adjustment if needed.
Figure 48
1. Hydro control linkage
2. Front adjusting nut
3. Rear adjusting nut
Note: If inconsistent neutral occurs, check
to be sure both springs are properly tightened
on the speed control lever under the console,
especially the rear pivot spring. Repeat above
adjustments if necessary (Figure 49).
39
4. Correct position
5. Incorrect position
6. Control arm
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