Toro 74204 Operator's Manual page 60

Troubleshooting
PROBLEM
Blades do not rotate.
58
POSSIBLE CAUSES
1. Drive belt is worn, loose or
broken.
2. Drive belt is off pulley.
3. Deck belt is worn, loose or
broken.
4. Deck belt is off pulley.
CORRECTIVE ACTION
1. Install new drive belt.
2. Install drive belt and check
adjusting shafts and belt
guides for correct position.
3. Install new deck belt.
4. Install deck pulley and check
the idler pulley, idler arm and
spring for correct position and
function.