Belt Maintenance; Inspecting The Belts; Replacing The Mower Belt - Toro 72949 Operator's Manual

Belt Maintenance

Inspecting the Belts

Service Interval: Every 50 hours
Replace the belt if it is worn. The signs of a worn belt
include squealing while the belt is rotating; the blades
slipping while cutting grass; and frayed edges, burn
marks, and cracks on the belt.

Replacing the Mower Belt

1. Park the machine on a level surface, disengage
the blade-control switch (PTO), and engage the
parking brake.
2. Shut off the engine, remove the key, and wait
for all moving parts to stop before leaving the
operating position.
3. Lower the mower to the 76 mm (3 inch) height
of cut.
4. Remove the belt covers
Figure 74
1. Push the tab down.
5. Use a ratchet in the square hole in the idler arm
to remove tension on the idler spring
6. Remove the belt from the mower-deck pulleys.
7. Remove the belt guide on the spring-loaded
idler arm (Figure
8. Remove the existing belt.
9. Install the new belt around the mower pulleys
and the clutch pulley under the engine
75).
(Figure 74).
2. Remove the belt cover.
(Figure
75).
(Figure
1. Clutch pulley
2. Mower belt
3. Spring-loaded idler pulley
4. Ratchet
10. Install the belt guide on the idler arm
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11. Using the ratchet in the square hole, install the
idler spring
Note:
Make sure that the spring ends are
seated in the anchor grooves.
75).
12. Install the belt covers
54
Figure 75
5. Square hole in the idler
arm for the ratchet
6. Idler-grease fitting
7. Belt guide
(Figure 75).
(Figure 76).
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(Figure 75).