Troubleshooting - Toro 74191 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 p
60
POSSIBLE CAUSES
1. Power take off (PTO) is
ENGAGED.
2. Parking brake is not on.
3. Motion control levers are not
in neutral. in neutral.
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. Choke is not ON.
3. Air cleaner is dirty.
4. Spark plug wires is loose or
disconnected.
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. 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.
CORRECTIVE ACTION
1. Move power take off (PTO) to
DISENGAGED.
2. Set parking brake.
3. Move motion control levers
into neutral. into neutral.
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. Move choke lever to ON.
3. Clean or replace air cleaner
element.
4. Install wires on spark plug.
5. Install new, correctly gapped
spark plugs.
6. Replace fuel filter.
7. 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.