Troubleshooting - Toro 74405FR Operator's Manual

Troubleshooting

Problem
The engine overheats.
The starter does not crank
The engine will not start,
starts hard, or fails to keep
running.
Possible Cause
1. The engine load is
excessive.
2. The oil level in the
crankcase is low.
3. The cooling ns and
air passages under the
engine blower housing
are plugged.
4. The air cleaner is dirty.
5. Dirt, water, or stale fuel
is in fuel system.
1. The blade control (PTO)
is engaged.
2. The parking brake is not
on.
3. The operator is not
seated.
4. The battery is dead.
5. The electrical
connections are
corroded or loose.
6. A fuse is blown.
7. A relay or switch is
damaged.
1. The fuel tank is empty.
2. The fuel valve turned off. 2. Open the fuel valve.
3. The choke is not on.
4. The air cleaner is dirty.
5. The spark plug wire(s) is
loose or disconnected.
6. The spark plug(s) is
pitted, fouled, or the gap
is incorrect.
7. There is dirt in fuel lter.
8. Dirt, water, or stale fuel
is in fuel system.
37
Corrective Action
1. Reduce ground speed.
2. Add oil to the crankcase.
3. Remove the obstruction
from the cooling ns and
air passages.
4. Clean or replace the air
cleaner element.
5. Contact an Authorized
Service Dealer
1. Move the PTO to
Disengaged.
2. Move the motion control
levers to the brake
position.
3. Sit on the seat.
4. Charge the battery.
5. Check the electrical
connections for good
contact.
6. Replace the fuse.
7. Contact an Authorized
Service Dealer.
1. Fill the fuel tank.
3. Move the choke lever to
On.
4. Clean or replace the air
cleaner element.
5. Install the wire(s) on the
spark plug.
6. Install a new, correctly
gapped spark plug(s).
7. Replace the fuel lter.
8. Contact an Authorized
Service Dealer.