Maintenance
to see if the wheel stops. If not, repeat the | Note: If inconsistent neutral occurs, | ||||||||
above adjustment procedure. | check to be sure both springs are properly | ||||||||
6. Make this adjustment on both sides. | tightened on the speed control lever under the | ||||||||
7. After adjustments are made and the wheels | |||||||||
Repeat above adjustments if necessary. | |||||||||
stop when the drive levers are in the neutral | |||||||||
position, tighten the nuts against the yokes. | 3. Place the speed control lever in neutral. Adjust | ||||||||
• Adjust Hydro Control Linkages: | the right side linkage by turning the quick track | ||||||||
1. Place the speed control lever in the “neutral” | knob counterclockwise until the tire begins to | ||||||||
rotate forward. Begin to retighten the knob | |||||||||
position. This adjustment is again made with | |||||||||
clockwise about 1/4 turn at a time, stopping | |||||||||
rear of machine on jack stands and engine | |||||||||
to move the speed control forward and back | |||||||||
running at full throttle. OPC levers will have | |||||||||
to neutral. Recheck the drive wheel rotation | |||||||||
to be held down and the park brake must be | |||||||||
to see if further adjustment is necessary. | |||||||||
disengaged whenever speed control levers are | |||||||||
4. The spring that keeps tension on the knob | |||||||||
moved out of the neutral position. | |||||||||
Note: The neutral lock latches should be | should normally not need adjustment. | ||||||||
However, if adjustment is needed, adjust to | |||||||||
“unlocked” and in the forward position. | where length of spring is about 1 inch (2.5 cm) | ||||||||
2. Loosen the front nut on left hydro control | between the washers. Adjust spring length by | ||||||||
linkage as shown in Figure 20. Turn the rear | turning nut at front of spring. | ||||||||
control linkage adjusting nut counterclockwise | • Drive Lever Linkage Adjustment: | ||||||||
until wheel rotates forward. Turn the rear nut | 1. With rear of machine still on jack stands and | ||||||||
of left control linkage clockwise 1/4 of a turn | |||||||||
engine running at full throttle, disengage | |||||||||
at a time, stopping to move the speed control | |||||||||
the park brake and move the speed control | |||||||||
forward and back to neutral, until left wheel | |||||||||
lever to the midway position. Move the | |||||||||
stops rotating forward. | |||||||||
respective drive lever upward until it reaches | |||||||||
Turn the rear nut an additional 1/2 turn and | |||||||||
the neutral position and engage neutral lock | |||||||||
tighten the front nut making sure not to put | latches (Figure 22). If the tire rotates in either | ||||||||
a bind on the linkage. Make sure flat part of | direction, the length of the drive lever link will | ||||||||
linkage is perpendicular to pin part of swivel | need to be adjusted. | ||||||||
(see Figure 21). |
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Figure 21
1. | Left Hydro Control Link | 4. | Linkage is perpendicular |
| (left side shown) |
| to pin (correct position) |
2. | Front nut | 5. | Linkage in incorrect |
3. | Rear nut |
| position |
6. | End view of swivel |
After adjusting the left hydro control linkage, move the speed control lever to the
Figure 22
2.Adjust the linkage length by loosening the jam nuts at both ends of the linkage and rotating the linkage in the ball joints. Lengthen the linkage if the tire is turning in reverse and
34
