Troubleshooting - Toro 22321 Operator's Manual

Troubleshooting

Problem
The starter does not crank
The engine will not start, starts hard, or
fails to keep running.
Engine loses power.
The engine overheats.
Abnormal vibration.
The traction unit does not drive.
Possible Cause
1. The battery is discharged.
2. The electrical connections are corroded
or loose.
3. The relay or switch is damaged.
1. The fuel tank is empty.
2. The choke is not on.
3. The air cleaner is dirty.
4. The spark plug wires are loose or
disconnected.
5. The spark plugs are pitted, fouled, or
the gap is incorrect.
6. There is dirt in the fuel filter.
7. Dirt, water, or stale fuel is in fuel
system.
1. The engine load is excessive.
2. The air cleaner is dirty.
3. The oil level in crankcase is low.
4. The cooling fins and air passages
under the engine blower housing are
plugged.
5. The spark plugs are pitted, fouled, or
the gap is incorrect.
6. There is dirt in the fuel filter.
7. Dirt, water, or stale fuel is in fuel
system.
1. The engine load is excessive.
2. The oil level in crankcase is low.
3. The cooling fins and air passages
under the engine blower housing are
plugged.
1. The engine mounting bolts are loose.
1. The parking brake is on.
2. The hydraulic fluid level low.
3. The tow valves are open.
4. The hydraulic system is damaged.
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Corrective Action
1. Charge the battery or replace it.
2. Check the electrical connections for
good contact.
3. Contact your Authorized Service
Dealer.
1. Fill the fuel tank with gasoline.
2. Move the choke lever fully forward.
3. Replace the air cleaner element.
4. Install the wires on the spark plugs.
5. Install new, correctly gapped spark
plugs.
6. Replace the fuel filter.
7. Contact Authorized Service Dealer.
1. Reduce ground speed.
2. Replace the air cleaner element.
3. Check and add oil to the crankcase.
4. Remove any obstructions from the
cooling fins and air passages.
5. Install new, correctly gapped spark
plugs.
6. Replace the fuel filter.
7. Contact Authorized Service Dealer.
1. Reduce ground speed.
2. Check and add oil to the crankcase.
3. Remove any obstructions from the
cooling fins and air passages.
1. Tighten the engine mounting bolts.
1. Release the parking brake.
2. Check and add hydraulic fluid.
3. Close the tow valves.
4. Contact Authorized Service Dealer.