Toro 34230 Operator's Manual page 79

Troubleshooting the Machine
Problem
The starter does not rotate the engine.
The engine does not start, it starts hard, or
it fails to keep running.
The engine loses power.
Possible Cause
1. The parking brake is not engaged.
2. The battery does not have a full
charge.
3. An electrical connection(s) is corroded,
loose or faulty.
4. A fuse is blown.
5. A relay or switch is worn or damaged.
1. The fuel tank is empty.
2. The fuel-shutoff valve is closed.
3. The throttle lever or choke lever or
both are not in the correct position.
4. There is dirt in fuel strainer.
5. There is dirt, water, or stale fuel is in
the fuel system.
6. The air-filter elements are dirty.
7. An electrical connection(s) is corroded,
loose or faulty.
8. A relay or switch is worn or damaged.
9. The spark plug is faulty.
10. The spark-plug wire is not connected
to the spark plug.
1. The engine load is excessive.
2. The air-filter elements are dirty.
3. The oil level in the engine is low.
4. The cooling fins and the air passages
for the engine are plugged with dirt or
debris.
5. The vent hole in the fuel cap is plugged.
6. There is dirt in the fuel strainer.
7. There is dirt, water, or stale fuel is in
the fuel system.
79
Corrective Action
1. Engage the parking brake.
2. Charge the battery; refer to the
Charging the Battery, and Jump
Starting the Machine procedures in the
Maintenance section.
3. Check the electrical connection(s)
for good contact. Clean the
connector terminals thoroughly with
electrical-contact cleaner, apply
dielectric grease to the terminals, and
connect the connectors.
4. Replace the blown fuse.
5. Contact an Authorized Service Dealer.
1. Fill the fuel tank with fuel.
2. Open the fuel-shutoff valve.
3. Move the throttle control is midway
between the S and F
LOW
Set the choke to the O
N
starting a cold engine or set the choke
to the O position when starting a
FF
warm engine.
4. Clean or replace the fuel strainer
(bottom of fuel tank).
5. Contact an Authorized Service Dealer.
6. Clean the foam-filter element or
replace the paper-filter element.
7. Check the electrical connection(s)
for good contact. Clean the
connector terminals thoroughly with
electrical-contact cleaner, apply
dielectric grease to the terminals, and
connect the connectors.
8. Contact an Authorized Service Dealer.
9. Clean, adjust or replace spark plug.
10. Check the spark-plug wire connection
at the spark plug.
1. Reduce the ground speed of the
machine.
2. Clean the foam-filter element or
replace the paper-filter element.
3. Add oil into the engine to the proper
oil level.
4. Clean the cooling fins and the air
passages.
5. Clean the vent hole or replace the fuel
cap.
6. Clean or replace the fuel strainer
(bottom of fuel tank).
7. Contact an Authorized Service Dealer.
positions.
AST
position when