Mower Belt Maintenance - Toro 74790 Operator's Manual

Note:
Retain all parts for future installation.

Mower Belt Maintenance

Inspecting the Belts
Service Interval: Every 25 hours—Check the belts
for wear/cracks.
Check the belts for cracks, frayed edges, burn marks,
or any other damage. Replace damaged belts.
Replacing the Mower-Deck 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. Park the machine on a level surface and
disengage the blade-control switch.
2. Engage the parking brake, 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
(38 mm or 1-1/2 inches).
4. Remove the pulley covers
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
60).
WARNING
The spring is under tension when
installed and can cause personal injury.
Be careful when removing the belt.
(Figure 58).
Figure 58
2. Screw
(Figure 59 and
1. Idler pulley
2. Mower belt
3. Outside pulley
4. Spring
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Figure
1. Idler pulley
2. Mower belt
3. Outside pulley
47
Figure 59
Mower Decks with 2 Blades
5. Engine pulley
6. Spring-removal tool
7. Mower-deck handles
Figure 60
Mower Decks with 3 Blades
4. Spring
5. Engine pulley
6. Spring-removal tool
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