Troubleshooting - Toro 30672 Operator's Manual

Troubleshooting

Problem
The engine will not start, starts hard, or
fails to keep running.
The engine loses power.
The engine overheats.
The machine does not drive.
The machine vibrates abnormally.
The cutting height of the machine is
uneven.
Possible Cause
1. The fuel tank is empty.
2. The fuel shut off valve is closed.
3. The choke is not in the On position.
4. The air cleaner is dirty.
5. One or both of the spark plug wires are
loose or disconnected.
6. One or both of the spark plugs are
pitted, fouled, or the gap is incorrect.
7. The fuel filter is dirty.
8. The fuel system is contaminated with
dirt, water, or stale fuel.
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. One or both of the spark plugs are
pitted, fouled, or the gap is incorrect.
6. The vent hole in the fuel cap is plugged.
7. The fuel filter is dirty.
8. The fuel system is contaminated with
dirt, water, or stale fuel.
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 shift lever is in neutral.
2. The traction belt is worn, loose or
broken.
3. The traction belt is off a pulley.
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.
1. The blade(s) not sharp.
2. The cutting blade(s) is/are bent.
3. The mower is not level.
4. The underside of mower is dirty.
5. The tire pressure is not correct.
6. The blade spindle bent.
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Corrective Action
1. Fill the fuel tank with gasoline.
2. Open the fuel shut off valve.
3. Move the throttle lever to choke
position.
4. Clean or replace the air cleaner
element.
5. Install the wire(s) on spark plug(s).
6. Install a new, correctly gapped spark
plug(s).
7. Replace the fuel filter.
8. Contact an Authorized Service Dealer.
1. Reduce the 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 the ground speed.
2. Add oil to the crankcase.
3. Remove the obstruction from the
cooling fins and air passages.
1. Move the shift lever to a drive gear
position.
2. Change the belt.
3. Change the belt.
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.
1. Sharpen the blade(s).
2. Install new cutting blade(s).
3. Level the mower from side-to-side and
front-to-rear.
4. Clean the underside of the mower.
5. Adjust the tire pressure.
6. Contact an Authorized Service Dealer.