Belt Maintenance; Inspecting The Belts; Replacing The Mower Belt - Toro 78922 Operator's Manual

Figure 74
Left Hand Brake Shown
1. Cable anchor
2. Hold threaded rod here
3. Measure
4. Lock nut
10. Disengage the park brake. Turn the wheel hub by
hand in both directions relative to the caliper; no
drag of the caliper pad on the wheel hub is desired.
11. If there is no movement between the hub and the
caliper then repeat the adjustment (drive release
valves must be in the released position on the
hydros).
12. After adjusting the brakes on both sides of the
mower, cycle the brake handle a minimum of six
times to allow the cable to seat into the sheath and
mounting tabs.
13. Recheck the spring length; engage the park brake
and repeat steps 8 through 11 if the length is not in
the correct range.
14. Rotate the drive wheel release handle to the
operating position. Refer to the Using the Drive
Wheel Release Valves section in Operation.
15. Install the rear tires and torque lug nuts between 90
and 95 ft-lb (122 and 129 N-m).
16. Remove jack stands.
5. Caliper
6. Compression spring
7. Threaded rod
8. Hub

Belt Maintenance

Inspecting the Belts

Service Interval: Every 50 hours
Check the belts for squealing when the belt is rotating,
blades slipping when cutting grass, frayed belt edges,
burn marks and cracks are signs of a worn mower belt.
Replace the mower belt if any of these conditions are
evident.

Replacing the Mower Belt

Squealing when the belt is rotating, blades slipping when
cutting grass, frayed belt edges, burn marks and cracks
are signs of a worn mower belt. Replace the mower belt
if any of these conditions are evident.
1. Disengage the PTO, move the motion control levers
to the neutral locked position and set the parking
brake.
2. Stop the engine, remove the key, and wait for all
moving parts to stop before leaving the operating
position.
3. Lower the mower to the 3 inch (76mm)height of cut.
4. Remove the belt covers (Figure 75).
1
1. Push tab down
5. Use a ratchet in the square hole in the idler arm to
remove tension on the idler spring (Figure 76).
6. Remove the belt from the mower deck pulleys.
7. Remove the belt guide on the spring loaded idler arm
shown in Figure 76.
8. Remove the existing belt.
9. Install the new belt around the mower pulleys and
the clutch pulley under the engine (Figure 76).
50
2
Figure 75
2. Remove belt cover
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