Toro 22303 Operator's Manual page 42

Troubleshooting
PROBLEM
The engine overheats. g
The engine loses power.
40
POSSIBLE CAUSES
1. More coolant is needed.
2. Restricted air flow to the
radiator.
3. The crankcase oil level is
incorrect.
4. Excessive loading.
5. The thermostat is damaged.
6. The fan belt is loose or
broken.
7. Incorrect fuel is in the fuel
system.
8. Injection timing is incorrect.
9. Coolant pump is damaged.
1. The crankcase oil level is
incorrect.
2. The air cleaner element is
dirty.
3. Dirt, water, stale fuel, or
incorrect fuel is in the fuel
system.
4. The engine is overheated.
5. Low compression.
6. The fuel tank vent is
restricted.
7. The engine load is excessive.
8. There is air in the fuel.
9. The injection pump timing is
incorrect.
10. The injection pump is
damaged.
CORRECTIVE ACTION
1. Check and add coolant.
2. Inspect and clean the radiator
screen with every use.
3. Fill or drain to the full mark.
4. Reduce load; use lower
ground speed.
5. Contact your Authorized
Service Dealer.
6. Contact your Authorized
Service Dealer.
7. Drain and flush the fuel
system; add fresh fuel.
8. Contact your Authorized
Service Dealer.
9. Contact your Authorized
Service Dealer.
1. Fill or drain to the full mark.
2. Clean or replace.
3. Drain and flush the fuel
system; add fresh fuel.
4. See ENGINE OVERHEATS.
5. Contact your Authorized
Service Dealer.
6. Contact your Authorized
Service Dealer.
7. Reduce ground speed.
8. Bleed the nozzles and check
for air leaks at the fuel hose
connections and fittings
between the fuel tank and
engine.
9. Contact your Authorized
Service Dealer.
10. Contact your Authorized
Service Dealer.