Maintenance
Adjustments
Note: Disengage PTO, shut off engine, wait for all moving parts to stop, engage parking brake, and remove key before servicing, cleaning, or making any adjustments to the unit.
Deck Leveling
See Adjusting the Cutting Height section in Operation.
Pump Drive Belt Tension
PTO Clutching Belt Tension
See Inspect PTO Clutching Belt Tension section.
Deck Belt Tension
Park Brake Adjustment
1.Shut off engine and wait for all moving parts to stop.
2.Disengage the park brake.
3.Remove the hairpin in the park brake linkage. Turn the linkage in the yoke until there is 3/16 inch (4.8 mm) to 1/4 inch (6.4 mm) clearance between the park brake tire bars and the tires with the park brake disengaged.
Hydro Drive Linkage
Adjustment
•Adjust Speed Control Linkage and Neutral Safety Switch:
1.Stop engine and wait for all moving parts to stop. Engage parking brake. Remove key or spark plug wire(s).
2.Move the speed control lever (located on the console) to the full forward position and check the orientation of the tabs on the ends of the speed control crank (see Figure 18). These tabs should be pointing straight down at the 6 o’clock position or slightly forward.
Adjust the threaded yoke at the bottom of the speed control linkage (see Figure 18) until the tabs are positioned correctly.
Figure 18
Viewed from Left Side of Unit
1. Neutral Safety Switch | 3. 5/16 inch (7.9 mm) |
2.Actuating Tab in neutral position
3.Pull the speed control lever back to neutral. Check that the neutral safety switch actuating tab has depressed the plunger of the switch so that there is about 5/16 inch (7.9 mm) between the tab and the switch (see Figure 18). If necessary, move the switch fore and aft.
•Adjust Neutral Control Linkages:
1.Raise the rear of the machine up onto jack stands high enough to raise the drive wheels off of the ground.
2.Start the engine and move the throttle ahead to the full throttle position. Place the neutral lock latches in the “forward” position as shown in Figure 4. Release the park brake and move the speed control lever to the
Note: The OPC levers must be held down and the park brake must be disengaged whenever the speed control lever is moved out of neutral or the engine will kill.
3.Squeeze the respective drive lever until an increased resistance is felt, this is where neutral should be.
If the wheel turns while holding the drive lever in neutral, the neutral control linkages need to be adjusted. If the wheel stops then go to step 7.
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