Toro TITAN 74891, Operator'S Manual, Page: 51 / 56

Problem Possible Cause Corrective Action
1. The by pass valves are not closed
tight.
1. Tighten the by pass valves.
2. The pump belt is worn, loose or broken. 2. Change the belt.
3. The pump belt is off a pulley. 3. Change the belt.
4. The idler spring is broken or missing. 4. Replace the spring.
The machine does not drive.
5. The hydraulic oil level is low or too hot. 5. Add hydraulic oil to reservoirs or let it
cool down.
1. The cutting blade(s) is/are bent or
unbalanced.
1. Install new cutting blade(s).
2. The blade mounting bolt is loose. 2. Tighten the blade mounting bolt.
3. The engine mounting bolts are loose. 3. Tighten the engine mounting bolts.
4. There is a loose engine pulley, idler
pulley, or blade pulley.
4. Tighten the appropriate pulley.
5. The engine pulley is damaged. 5. Contact an Authorized Service Dealer.
6. The blade spindle is bent. 6. Contact an Authorized Service Dealer.
The machine vibrates abnormally.
7. The motor mount is loose or worn.
7. Contact an Authorized Service Dealer.
1. The blade(s) is/are not sharp. 1. Sharpen the blade(s).
2. The cutting blade(s) is/are bent. 2. Install new cutting blade(s).
3. The mower deck is not level. 3. Level mower deck from side-to-side
and front-to-rear.
4. The underside of mower is dirty. 4. Clean the underside of the mower.
5. The tire pressure is not correct. 5. Adjust the tire pressure.
The machine cutting height is uneven.
6. The blade spindle bent. 6. Contact an Authorized Service Dealer.
1. The mower deck belt is worn, loose
or broken.
1. Install new deck belt.
2. The mower deck belt is off pulley. 2. Install mower deck pulley and check
the idler pulley, idler arm and spring for
correct position and function.
3. The pump drive belt is worn, loose or
broken.
3. Check the belt tension or install new
belt.
The blades do not rotate.
4. The idler spring is broken or missing. 4. Replace the spring.
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