Toro 74412 Operator's Manual page 53

Problem
Blades do not rotate.
Possible Cause
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.
5. Broken or missing idler
spring.
53
Corrective Action
1. Check the belt tension.
2. Install the drive belt
and check adjusting
shafts and belt guides for
correct position.
3. Install a new deck belt.
4. Install the deck pulley
and check the idler
pulley, idler arm and
spring for correct
position and function.
5. Replace the spring.