Troubleshooting - Toro 74411 Operator's Manual

Troubleshooting

Problem
Starter does not crank.
Engine will not start, starts hard, or g
fails to keep running. f il t k i
Engine loses power. g
Engine overheats. g
Possible Causes
1. Blade control (PTO) is
engaged.
2. Parking brake is not on.
3. Operator is not seated.
4. Battery is dead.
5. Electrical connections are
corroded or loose.
6. Fuse is blown.
7. Relay or switch is defective.
1. Fuel tank is empty.
2. Fuel valve turned off.
3. Choke is not on.
4. Air cleaner is dirty.
5. Spark plug wires are loose or
disconnected.
6. Spark plugs are pitted, fouled,
or gap is incorrect.
7. Dirt in fuel filter.
8. Dirt, water, or stale fuel is in
fuel system.
1. Engine load is excessive.
2. Air cleaner is dirty.
3. Oil level in crankcase is low.
4. Cooling fins and air passages
under engine blower housing
are plugged.
5. Spark plugs are pitted, fouled,
or gap is incorrect.
6. Dirt in fuel filter.
7. Dirt, water, or stale fuel is in
fuel system.
1. Engine load is excessive.
2. Oil level in crankcase is low.
3. Cooling fins and air passages
under engine blower housing
are plugged.
50
Corrective Action
1. Move blade control (PTO) to
Disengaged.
2. Set parking brake.
3. Sit on the seat.
4. Charge the battery.
5. Check electrical connections
for good contact.
6. Replace fuse.
7. Contact Authorized Service
Dealer.
1. Fill fuel tank with gasoline.
2. Open fuel valve.
3. Move choke lever to on.
4. Clean or replace air cleaner
element.
5. Install wires on spark plug.
6. Install new, correctly gapped
spark plugs.
7. Replace fuel filter.
8. Contact Authorized Service
Dealer.
1. Reduce ground speed.
2. Clean air cleaner element.
3. Add oil to crankcase.
4. Remove obstruction from
cooling fins and air passages.
5. Install new, correctly gapped
spark plugs.
6. Replace fuel filter.
7. Contact Authorized Service
Dealer.
1. Reduce ground speed.
2. Add oil to crankcase.
3. Remove obstruction from
cooling fins and air passages.