Toro 72098 Operator's Manual page 69

Problem
The machine does not drive.
The machine vibrates abnormally.
The cutting height is uneven.
The blades do not rotate.
The clutch does not engage.
Possible Cause
1. The bypass valves are not closed tight.
2. The pump belt is worn, loose, or
broken.
3. The pump belt is off a pulley.
4. The idler spring is broken or missing.
5. The hydraulic fluid level is low or too
hot.
1. The cutting blade(s) is/are bent or
unbalanced.
2. The blade mounting bolt is loose.
3. The engine mounting bolts are loose.
4. The engine pulley, idler pulley, or blade
pulley is loose.
5. The engine pulley is damaged.
6. The blade spindle is bent.
7. The motor mount is loose or worn.
1. The blade(s) is not sharp.
2. A cutting blade(s) is/are bent.
3. The mower is not level.
4. An anti-scalp roller (if applicable) is not
set correctly.
5. The underside of the mower deck is
dirty.
6. The tire pressure is incorrect.
7. A blade spindle is bent.
1. The mower deck belt is damaged,
worn, loose, or broken.
2. The mower deck belt is off the pulley.
3. The pump drive belt is worn, loose, or
broken.
4. The idler spring is broken or missing.
1. A fuse is blown.
2. There is low voltage supply at the
clutch.
3. There is an inadequate current supply.
4. Engine has overheated.
5. The wing decks are not fully lowered.
69
Corrective Action
1. Tighten the bypass valves.
2. Change the belt.
3. Change the belt.
4. Replace the spring.
5. Add hydraulic fluid to the reservoirs or
let it cool down.
1. Install new cutting blade(s).
2. Tighten the blade mounting bolt.
3. Tighten the engine mounting bolts.
4. Tighten the appropriate pulley.
5. Contact an Authorized Service Dealer.
6. Contact an Authorized Service Dealer.
7. Contact an Authorized Service Dealer.
1. Sharpen the blade(s).
2. Install a new cutting blade(s).
3. Level the mower from side-to-side and
front-to-rear.
4. Adjust the anti-scalp wheel height.
5. Clean the underside of the mower
deck.
6. Adjust the tire pressure.
7. Contact an Authorized Service Dealer.
1. Install a new deck belt.
2. Install the mower belt on the deck
pulley and check the idler pulley, idler
arm, and spring for correct position
and function.
3. Check the belt tension or install a new
belt.
4. Replace the spring.
1. Replace the fuse. Check the coil
resistance, battery charge, charging
system, and wire connections.
Replace if necessary.
2. Check the coil resistance, battery
charge, charging system, and wire
connections. Replace if necessary.
3. Repair or replace the clutch-lead
wire or electrical system. Clean the
connector contacts.
4. The engine has overheated; determine
the cause of overheating.
5. Lower the wing decks.