Toro 74179 Operator's Manual page 51

Problem
Machine does not drive.
Abnormal vibration.
Uneven cutting height. g g
Blades do not rotate.
Possible Causes
1. Traction belt is worn, loose or
broken.
2. Traction belt is off pulley.
3. Hydro fluid level low.
1. Engine mounting bolts are
loose.
2. Loose engine pulley, idler
pulley, or blade pulley.
3. Engine pulley is damaged.
4. Cutting blade(s) is/are bent or
unbalanced.
5. Blade mounting bolt is loose.
6. Engine mounting bolts are
loose.
7. Loose engine pulley, idler
pulley, or blade pulley.
8. Engine pulley is damaged.
9. Blade spindle bent.
1. Blade(s) not sharp.
2. Cutting blade(s) is/are bent.
3. Mower is not level.
4. Gage wheel not set correctly.
5. Underside of mower is dirty.
6. Tire pressure is incorrect.
7. Blade spindle bent.
1. Drive belt is worn, loose or
broken.
2. Drive belt is off pulley.
3. Deck belt is worn, loose or
broken.
51
Corrective Action
1. Contact Authorized Service
Dealer.
2. Contact Authorized Service
Dealer.
3. Add hydro fluid to reservoir.
1. Tighten engine mounting bolts.
2. Tighten the appropriate pulley.
3. Contact Authorized Service
Dealer.
4. Install new cutting blade(s).
5. Tighten blade mounting bolt.
6. Tighten engine mounting bolts.
7. Tighten the appropriate pulley.
8. Contact Authorized Service
Dealer.
9. 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 new drive belt.
2. Install drive belt and check
adjusting shafts and belt guides
for correct position.
3. Install new deck belt.