Belt Maintenance; Inspecting The Belts; Replacing The Mower Belt - Toro 74901 Operator's Manual

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
Figure 75
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).
2
2. Remove belt cover
1. Clutch pulley
2. Mower belt
3. Spring loaded idler pulley
4. Ratchet
10. Install the belt guide on the idler arm shown in
Figure 76.
11. Using the ratchet in the square hole, install the idler
spring (Figure 76).
Make sure the spring ends are seated in the anchor
G009036
grooves.
12. Install the belt covers (Figure 77).
50
Figure 76
5. Square hole in the idler
arm for the ratchet
6. Idler grease zerk
7. Belt guide