Toro 39988 Operator's Manual page 35

12. After adjusting the left hydro control linkage, move
the speed control lever forward and then back to the
neutral position.
13. 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.
14. Make sure the speed control lever is in the neutral
position and the tire does not rotate.
15. Repeat the adjustment if needed.
1. Hydro control linkage
2. Front adjustingnut
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 38).
Figure 36
Figure 37
3. Rear adjusting nut
4. Control arm
1. Speed control lever
2. Rear pivot spring
Adjusting the Right Side Linkage
1. Place the speed control lever in the neutral position.
2. Place the right drive lever in the full forward position.
3. Adjust the right side linkage by turning the quick
track knob counterclockwise until the tire begins to
rotate forward (Figure 39).
4. Turn the knob clockwise 1/4 of a turn at a time.
Then move the speed control forward and back to
neutral. Repeat this until right wheel stops rotating
forward (Figure 39).
5. 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.
6. The spring that keeps tension on the knob should
normally not need adjustment. However if an
adjustment is needed, adjust the length of spring to
1 inch (26 mm) between the washers (Figure 39).
7. Adjust spring length by turning nut at front of spring
(Figure 39).
35
Figure 38
3. spring