Operator's Manual

43
Adjusting Traction Pedal
Friction Wheel
1. Loosen two nuts securing traction pedal shaft on right
side of pedal (Fig. 59).
2. Rotate shaft to relocate worn surface of friction wheel
away from underside of traction pedal.
3. Tighten nuts to secure shaft and wheel in position.
Adjusting the Traction Drive for
Neutral
1. Park vehicle on a level surface and turn engine off.
Apply the parking brake, tip seat forward, and actuate
pump lever (Fig. 60) to ensure assembly is properly
seated and operating freely. Correct any discrepancy.
Figure 60
2. Block right front tire and both rear tires so vehicle
cannot roll forward or backward.
3. Jack up frame so left front wheel is off the shop floor.
Use a jack stand to support the frame.
4. Start engine and allow it to idle for 5 minutes to heat oil
in transmission to operating temperature.
5. Release parking brake; then check left front wheel that
is off shop floor. Wheel must not be rotating. If wheel is
rotating, proceed to step 11 for an adjustment. If wheel
is not rotating, proceed to step 13. Verify the adjustment
with throttle in SLOW and FAST position.
6. Because the wheel is rotating, the pump plate must be
adjusted. But before adjusting the pump plate, move
throttle to SLOW. If wheel is rotating forward, loosen
capscrews, and lightly tap bottom of pump plate
counterclockwise (Fig. 60). By contrast, tap pump plate
clockwise if wheel is rotating backward (Fig. 60). When
wheel stops rotating, tighten capscrews holding pump
plate against side of transmission. Verify the adjustment
with throttle in SLOW and FAST position.
7. Block right front tire and both rear tires so vehicle
cannot roll forward or backward.
8. Jack up frame so left front wheel is off the shop floor.
Use a jack stand to support the frame.
9. Start engine and allow it to idle for 5 minutes to heat oil
in transmission to operating temperature.
10. Release parking brake; then check left front wheel that
is off shop floor. Wheel must not be rotating. If wheel is
rotating, proceed to step 11 for an adjustment. If wheel
is not rotating, proceed to step 13. Verify the adjustment
with throttle in SLOW and FAST position.
11. Because the wheel is rotating, the pump plate must be
adjusted. But before adjusting the pump plate, move
throttle to SLOW. If wheel is rotating forward, loosen
capscrews, and lightly tap bottom of pump plate
counterclockwise (Fig. 60). By contrast, tap pump plate
clockwise if wheel is rotating backward (Fig. 60). When
wheel stops rotating, tighten capscrews holding pump
plate against side of transmission. Verify the adjustment
with throttle in SLOW and FAST position.
12. Should front wheel continue to rotate, check for the
following:
• Ball bearing is loose or worn out (Fig. 60).
• Plunger on interlock switch is sticking.
• Loose or missing fasteners
• Worn bolt securing pump lever to transmission
• Pump lever loose on control shaft. (Correct by
applying Loctite 680 to shaft.)
• Weak or damaged leaf springs (Fig. 60). Replace.
• Internal transmission component malfunction.
Contact your local Toro distributor for assistance.
13. Shut engine off.
14. Adjust traction control rod; refer to Adjusting the
Traction Control Rod, page 37.
Adjusting the Traction Interlock
Switch
1. Adjust transmission for neutral; refer to Adjusting the
Traction Drive for Neutral, page 43.
2. Actuate the pump lever (Fig. 60) to ensure all parts are
operating freely and seated properly.
3. Loosen jam nut. Rotate switch adjusting screw (Fig. 60)
until there is a gap between head of screw and switch
button.