Toro Z580-D Z Master Operator's Manual page 64

Problem
Uneven cutting height.
The cutting blades do not rotate.
Possible Cause
1. The cutting blade(s) is/are not sharp.
2. The cutting blade(s) is/are bent.
3. The mower deck is not level.
4. The underside of mower is dirty.
5. The tire pressure is not correct.
6. The blade spindle is bent.
1. The drive belt is worn, loose or broken.
2. The drive belt is off pulley.
3. The mower deck belt is worn, loose or
broken.
4. The mower deck belt came off a pulley.
5. The idler spring is broken or missing.
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Corrective Action
1. Sharpen the blade(s).
2. Install new cutting blade(s).
3. Level the mower deck 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 the drive belt and check
adjusting shafts and belt guides for
correct position.
3. Install a new mower deck belt.
4. Install mower deck belt and check the
idler pulley, idler arm and spring for the
correct position and function.
5. Replace the spring.