Toro 74592 Operator's Manual page 38

Problem
There is abnormal vibration.
The blades do not rotate.
The cutting height is uneven.
The cruise control will not engage or will
not stay engaged.
Possible Cause
1. The blades are bent or unbalanced.
2. The blade mounting screws are loose.
3. The engine mounting bolts are loose.
4. There is a loose engine pulley, idler
pulley, or blade pulley.
5. The engine pulley is damaged.
6. The blade drive belt is damaged.
1. The blade drive belt is worn, loose, or
broken.
2. The blade drive belt is off the pulley.
3. The grass collector is not in place.
1. The tire pressure is incorrect.
2. The mower is not level.
3. The underside of the mower is dirty.
4. The blade mounting screws are loose.
5. The blade drive belt tension is incorrect.
1. The battery is not fully charged.
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Corrective Action
1. Install a new blades.
2. Tighten the blade mounting screws.
3. Tighten the engine mounting bolts.
4. Tighten the appropriate pulley.
5. Contact an Authorized Service Dealer.
6. Install a new blade drive belt.
1. Install a new blade drive belt.
2. Install the blade drive belt and adjust it
for the correct tension.
3. Install the grass collector.
1. Set the tire pressure.
2. Adjust the height adjustment cable rod
assembly.
3. Clean the underside of the mower.
4. Tighten the blade mounting screws.
5. Adjust the blade drive belt.
1. Charge the battery.