Toro 74274 Operator's Manual page 60

Problem
Uneven cutting height.
Blades do not rotate.
Possible Cause
1. Blade(s) not sharp.
2. Cutting blade(s) is/are bent.
3. Mower is not level.
4. Underside of mower is dirty.
5. Tire pressure is not correct.
6. Blade spindle bent.
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.
60
Corrective Action
1. Sharpen the blade(s).
2. Install new cutting blade(s).
3. Level mower from side-to-side and
front-to-rear.
4. Clean the underside of the mower.
5. Adjust the tire pressure.
6. Contact an Authorized Service Dealer.
1. Check the belt tension.
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.
5. Replace the spring.