Toro 30612 Operator's Manual page 34

Problem
The engine will not start, starts g
hard, or fails to keep running. h d f il t k i
The engine loses power. g
The engine overheats. g
There is abnormal vibration.
The machine does not drive.
Possible Causes
1. The operator is not seated.
2. The parking brake is off.
3. The fuel tank is empty.
4. The choke is not on.
5. The air cleaner is dirty.
6. The spark plug wire(s) is loose
or disconnected.
7. The spark plug(s) is pitted,
fouled, or the gap is incorrect.
8. There is dirt in the fuel filter.
9. Dirt, water, or stale fuel is in the
fuel system.
1. The engine load is excessive.
2. The air cleaner is dirty.
3. The oil level in the crankcase is
low.
4. The cooling fins and air
passages under the engine
blower housing are plugged.
5. A spark plug(s) is pitted, fouled,
or the gap is incorrect.
6. The vent hole in the fuel cap is
plugged.
7. There is dirt in the fuel filter.
8. Dirt, water, or stale fuel is in the
fuel system.
1. The engine load is excessive.
2. The oil level in the crankcase is
low.
3. The cooling fins and air
passages under the engine
blower housing are plugged.
1. The engine mounting bolts are
loose.
2. There is a loose engine pulley,
idler pulley, or blade pulley.
3. The engine pulley is damaged.
1. The traction belt is worn, loose,
or broken.
2. The traction belt is off of the
pulley.
34
Corrective Action
1. Sit on the seat.
2. Move the parking brake to ON.
3. Fill the fuel tank with gasoline.
4. Move the choke lever to ON.
5. Clean or replace the air cleaner
element.
6. Install the wire(s) on the spark
plug(s).
7. Install a new, correctly-gapped
spark plug(s).
8. Replace the fuel filter.
9. Contact an Authorized Service
Dealer.
1. Reduce your ground speed.
2. Clean the air cleaner element.
3. Add oil to the crankcase.
4. Remove the obstruction from
the cooling fins and air
passages.
5. Install a new, correctly-gapped
spark plug(s).
6. Clean or replace the fuel cap.
7. Replace the fuel filter.
8. Contact an Authorized Service
Dealer.
1. Reduce your ground speed.
2. Add oil to the crankcase.
3. Remove the obstruction from
the cooling fins and air
passages.
1. Tighten the engine mounting
bolts.
2. Tighten the appropriate pulley.
3. Contact an Authorized Service
Dealer.
1. Adjust the belt tension or
replace the belt.
2. Contact an Authorized Service
Dealer.