Toro 30177 Operator's Manual page 30

PROBLEM
Engine loses power. g
Engine overheats. g
Abnormal vibration.
Machine does not drive.
POSSIBLE CAUSES
1. Engine load is excessive.
2. Air cleaner is dirty.
3. Oil level in crankcase is low.
4. Cooling fins and air passages
under engine blower housing
are plugged.
5. Spark plug is pitted, fouled, or
gap is incorrect.
6. Vent hole in fuel cap is
plugged.
7. Dirt in fuel filter.
8. Dirt, water, or stale fuel is in
fuel system.
1. Engine load is excessive.
2. Oil level in crankcase is low.
3. Cooling fins and air passages
under engine blower housing
are plugged.
1. Engine mounting bolts are
loose.
2. Loose engine pulley, idler
pulley, or blade pulley.
3. Engine pulley is damaged.
1. Shift lever is in neutral.
2. Traction belt is worn, loose or
broken.
3. Traction belt is off pulley.
30
CORRECTIVE ACTION
1. Reduce ground speed.
2. Clean air cleaner element.
3. Add oil to crankcase.
4. Remove obstruction from
cooling fins and air passages.
5. Install new, correctly gapped
spark plug.
6. Clean or replace the fuel cap.
7. Replace fuel filter.
8. Contact Authorized Service
Dealer.
1. Reduce ground speed.
2. Add oil to crankcase.
3. Remove obstruction from
cooling fins and air passages.
1. Tighten engine mounting bolts.
2. Tighten the appropriate pulley.
3. Contact Authorized Service
Dealer.
1. Move shift lever to a drive gear
position.
2. Change Belt.
3. Change Belt.