Troubleshooting - Toro Z Master 4000 Series Operator's Manual

Troubleshooting

Problem
The engine overheats.
The malfunction-indicator light (MIL)
comes on.
The starter does not crank.
Possible Cause
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.
4. The air cleaner is dirty.
5. Dirt, water, or stale fuel is in the fuel
system.
1. The engine is too hot.
2. There is old fuel in the fuel tank.
3. The fuel-shutoff valve is not open
completely.
4. The air cleaner is dirty.
5. The battery is not charged.
6. Incorrect fuel filters are being used or
the fuel filters are dirty.
7. The connections to the sensors
electronic-control unit (ECU) and fuel
injectors are not secured properly.
8. There is low voltage from the battery.
9. A fuse is blown.
1. The blade-control switch is engaged.
2. The parking brake is disengaged.
3. The motion-control levers are not in
the N - position.
EUTRAL LOCK
4. You are not sitting in the operator's
seat.
5. The battery is dead.
6. The electrical connections are
corroded or loose.
7. A fuse is blown.
8. A relay or switch is damaged.
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Corrective Action
1. Reduce the ground speed.
2. Add oil to the crankcase.
3. Remove the obstruction from the
cooling fins and air passages.
4. Clean or replace the air-cleaner
element.
5. Contact an Authorized Service Dealer
1. Shut off the engine and let it cool.
2. Use new fuel.
3. Open the fuel-shutoff valve.
4. Make sure that the air cleaner and
precleaner are clean. Replace if
necessary.
5. Charge or replace the battery.
6. Contact an Authorized Service Dealer.
7. Contact an Authorized Service Dealer.
8. Ensure that you are using a good 12 V
battery and that it is fully charged.
9. Check and replace any blown fuses.
1. Disengage the blade-control switch.
2. Engage the parking brake.
3. Move the motion-control levers
outward to the N -
EUTRAL
4. Sit on the operator's seat.
5. Charge the battery.
6. Check the electrical connections for
good contact.
7. Replace the fuse.
8. Contact an Authorized Service Dealer.
position.
LOCK