Mower Belt Maintenance; Inspecting The Belts; Replacing The Mower Belt - Toro TimeCutter SS 4225 Operator's Manual

Mower Belt Maintenance

Inspecting the Belts

Service Interval: Every 25 hours—Check the belts for wear
or cracks.
Check the belts for cracks, frayed edges, burn marks, or any
other damage. Replace damaged belts.

Replacing the Mower Belt

The signs of a worn belt include squealing while the belt is
rotating, blades slipping while cutting grass, and frayed edges,
burn marks, and cracks on the belt. Replace the mower belt if
any of these conditions are evident.
1. Park the machine on a level surface and disengage the
blade-control switch.
2. Move the motion-control levers outward to the P
position, shut off the engine, remove the key, and
wait for all moving parts to stop before leaving the
operating position.
3. Set the height-of-cut at the lowest cutting position of
38 mm (1-1/2 inches).
4. Remove the pulley covers
Figure 59
1. Cover
5. Using a spring-removal tool (Toro part no. 92-5771),
remove the idler spring from the deck hook to remove
tension on the idler pulley, and roll the belt off the
pulleys (Figure 60).
WARNING
The spring is under tension when installed
and can cause personal injury.
Be careful when removing the belt.
6. Route the new belt around the engine pulley and
mower pulleys (Figure
7. Using a spring-removal tool, install the idler spring over
the deck hook, and place tension on the idler pulley
and mower belt (Figure
(Figure 59).
2. Screw
60).
60).
8. Install the pulley covers
3 3
4
ARK
1. Idler pulley
2. Mower belt
3. Outside pulley
4
1. Idler pulley
2. Mower belt
3. Outside pulley
44
(Figure 59).
2 2
4 4
6
Figure 60
Mower Decks with 2 Blades
4. Spring
5. Engine pulley
6. Spring-removal tool
5
3
2
6
Figure 61
Mower decks with 3 blades
4. Spring
5. Engine pulley
6. Spring-removal tool
5 5
1 1
3 3
G014930
1
3
G014931