Toro Z Master Z557 Operator's Manual page 55

Problem
Machine does not drive.
Abnormal vibration.
Uneven cutting height. g g
Blades do not rotate.
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Possible Causes
1. Traction belt is worn, loose or
broken.
2. Traction belt is off pulley.
3. Hydro fluid level low.
1. Cutting blade(s) is/are bent or
unbalanced.
2. Blade mounting bolt is loose.
3. Engine mounting bolts are
loose.
4. Loose engine pulley, idler
pulley, or blade pulley.
5. Engine pulley is damaged.
6. Blade spindle bent.
1. Blade(s) not sharp.
2. Cutting blade(s) is/are bent.
3. Mower is not level.
4. Anti–scalp roller not set
correctly.
5. Underside of mower is dirty.
6. Tire pressure is incorrect.
7. Blade spindle bent.
1. Mower belt is off the pulley.
2. Mower belt is worn, loose or
broken.
3. Electric clutch does not
engage.
4. Electric clutch is worn.
55
Corrective Action
1. Contact Authorized Service
Dealer.
2. Contact Authorized Service
Dealer.
3. Add hydro fluid to reservoir.
1. Install new cutting blade(s).
2. Tighten blade mounting bolt.
3. Tighten engine mounting bolts.
4. Tighten the appropriate pulley.
5. Contact Authorized Service
Dealer.
6. Contact Authorized Service
Dealer.
1. Sharpen blade(s).
2. Install new cutting blade(s).
3. Level mower from side-to-side
and front-to-rear.
4. Adjust gage wheel height.
5. Clean the underside of the
mower.
6. Adjust tire pressure.
7. Contact Authorized Service
Dealer.
1. Install the mower belt and
check the adjusting plate, idler
arm and spring, and belt guides
for correct position
2. Install a new mower belt.
3. Contact Authorized Service
Dealer.
4. Contact Authorized Service
Dealer.