Troubleshooting - Toro 23518 Operator's Manual

Troubleshooting

Important: It is essential that all operator safety mechanisms be connected and in proper operating
condition prior to use.
When a problem occurs, do not overlook the simple causes. For example: starting problems could be caused
by an empty fuel tank.
The following table lists some of the common causes of trouble. Do not attempt to service or replace major
items or any items that call for special timing of adjustments procedures (such as valves, governor, etc.).
Have this work done by your Engine Service Dealer.
Note: When disconnecting electrical connectors Do not pull on the wires to separate the connectors.
Problem
The starter does not crank.
The engine will not start, starts hard, or
fails to keep running.
The engine loses power.
Possible Cause
1. The parking brake is not engaged.
2. The brake switch is not adjusted
properly.
3. The battery does not have a full charge.
4. The electrical connections are
corroded, loose or faulty.
5. A fuse is blown.
6. A relay or switch is defective.
1. The fuel tank is empty.
2. The fuel shutoff valve is closed.
3. The throttle and choke are not in the
correct position.
4. There is dirt in the fuel filter.
5. Dirt, water, or stale fuel is in the fuel
system.
6. The air cleaner is dirty.
7. The electrical connections are
corroded, loose or faulty.
8. A elay or switch is defective.
9. The spark plug is faulty.
10. The spark plug wire is not connected.
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 for
the engine are plugged.
5. There is dirt in the fuel filter.
6. Dirt, water, or stale fuel is in the fuel
system.
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Corrective Action
1. Engage the parking brake.
2. Adjust the brake switch.
3. Charge the battery.
4. Check the electrical connections for
good contact. Clean the connector
terminals thoroughly with electrical
contact cleaner, apply dielectric grease,
and reconnect.
5. Replace the blown fuse.
6. Contact an Authorized Service Dealer.
1. Fill the fuel tank.
2. Open the fuel shutoff valve.
3. Be sure the throttle control is midway
between the Slow and Fast positions,
and the choke is in the On position for
a cold engine or the Off position for a
warm engine.
4. Replace the fuel filter.
5. Contact an Authorized Service Dealer.
6. Clean or replace the air cleaner
element.
7. Check the electrical connections
for good contact. Clean connector
terminals thoroughly with electrical
contact cleaner, apply dielectric grease,
and reconnect.
8. Contact an Authorized Service Dealer.
9. Clean, adjust, or replace the spark
plug.
10. Check the spark plug wire connection.
1. Reduce the ground speed or aeration
depth.
2. Clean or replace the air cleaner
element.
3. Add oil to the crankcase.
4. Remove the obstructions from the
cooling fins and air passages.
5. Replace the fuel filter.
6. Contact an Authorized Service Dealer.