6. Make sure the speed control lever is in the
neutral position and the tires do not rotate.
7. Repeat the linkage adjustments if needed to
obtain neutral position.
Figure 51
1. Gap needs to be equal on
left and right side
3. Control arm
2. Hydro control linkage
Adjusting the Neutral Stud
Electrical system will not perform proper
safety shut off with Operator Presence
Control (OPC) levers held 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 in
place.
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. With the machine on jack stands, place the
speed control lever in the neutral position.
2. 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.
3. Adjust the left and right neutral stud until the
clevis pin in the yoke touches the back end of
the slot in the control arm (Figure 52).
4. Move the speed control lever to the full
forward position.
5. Squeeze one drive lever until an increased
resistance is felt. This is neutral position. This
is where the clevis pin in the yoke comes to the
back end of the slot in the control arm bracket.
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.
6. If the wheel turns while holding the drive lever
in neutral, the neutral stud needs to be adjusted
(Figure 52). If wheel stops then go to .
7. Loosen the nut against the yoke (Figure 52).
8. Adjust the adjustment stud until the respective
drive wheel stops while holding the drive in
the neutral position (increased resistance)
(Figure 52).
9. 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 52).
10. 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.
11. After adjustments are made, tighten the nuts
against the yokes.
12. Repeat this procedure for the opposite side.
41
