Toro 74549 Operator's Manual page 62

Problem
Uneven cutting height.
Blades do not rotate.
Possible Cause
1. Blade(s) not sharp.
2. Cutting blade(s) is/are bent.
3. Mower deck is not level.
4. Mower deck pitch is wrong.
5. Underside of mower deck is dirty.
6. Tire pressure is not correct.
7. Blade spindle bent.
1. Pump drive belt is worn, loose or
broken.
2. Pump drive belt is off pulley.
3. Mower deck belt is worn, loose or
broken.
4. Mower deck belt is off pulley.
5. Broken or missing idler spring.
6. Electric clutch out of adjustment.
7. Clutch connector or wire damaged.
8. Damaged electric clutch.
9. Safety interlock system prevents blade
rotation.
10. PTO switch is faulty.
62
Corrective Action
1. Sharpen the blade(s).
2. Install new cutting blade(s).
3. Level the mower deck side-to-side
position.
4. Adjust the front-to-rear pitch.
5. Clean the underside of the mower
deck.
6. Adjust the tire pressure.
7. 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.
6. Adjust the clutch air gap.
7. Contact an Authorized Service Dealer.
8. Contact an Authorized Service Dealer.
9. Contact an Authorized Service Dealer.
10. Contact an Authorized Service Dealer.