Belt Maintenance; Replacing The Mower Deck Belt - Toro 74549 Operator's Manual

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Figure 67
1. 1/8 inch (3mm) gap
needed between switch
and brake lever
2. Brake lever
3. Switch
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4
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4. Switch button
5. Face of the switch

Belt Maintenance

Replacing the Mower Deck
Belt
Service Interval: Every 100 hours—Check 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 deck belt. Replace the deck belt if any of
these conditions are evident.
1. Disengage the PTO 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. Unlatch and remove the belt covers.
4. Loosen the front idler pulley by loosening the nut.
5. Remove the worn mower belt (Figure 68 and Figure 69).
6. Install the new mower belt around the deck pulleys and
clutch pulley (Figure 68 and Figure 69).
7. Using a ratchet in the idler arm, tighten the idler pulley
until the spring is stretched 6-1/2 inches (165 mm)
from hook to hook (Figure 68 and Figure 69).
8. Tighten the front idler pulley by tightening the nut.
9. Install the belt covers onto the cutting unit and secure
the latches.
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