Manitowoc Grove 5540F Service Manual page 174

ENGINE AND ENGINE SYSTEMS
Table 6-2: Engine Troubleshooting Chart
Problem
Engine hard to start or
will not start.
Engine runs irregularly
or stalls frequently.
Below normal engine
temperature.
Lack of power.
Low oil pressure.
Engine overheats
6-6
Probable Cause
1. Improper starting procedure.
2. No fuel.
3. Air in fuel line.
4. Crankcase oil too heavy.
5. Improper type of fuel.
6. Water, dirt or air in fuel system.
7. Clogged fuel filter.
1. Low coolant temperature.
2. Clogged fuel filter.
3. Water dirt or air in fuel system.
4. Dirty or faulty fuel injection nozzles.
5. Clogged air filter.
1. Defective thermostat.
2. Defective temperature gauge.
1. Engine overload.
2. Intake air restriction.
3. Clogged fuel filters.
4. Overheated engine.
5. Below normal engine temperature.
6. Faulty engine.
1. Low oil level.
2. Faulty gauge or sender.
3. Improper type of oil.
1. Engine overloaded.
2. Low coolant level.
3. Plugged radiator/oil cooler fins.
4. Faulty radiator cap.
5. Cooling system needs flushing.
6. Defective thermostat.
7. Defective temperature
sender.
Published 10-21-2010, Control# 198-04
5540F/YB5515 SERVICE MANUAL
1. Review
Operator's Manual.
2. Check fuel gauge.
3. Bleed the fuel line.
4. Use oil with proper viscosity.
5. User proper fuel for operating conditions.
6. Drain, flush, fill and bleed system.
7. Replace the filter element.
1. Remove and check thermostat.
2. Replace filter element.
3. Drain, flush, fill and bleed.
4. Have authorized dealer or distributor check
the nozzles.
5. Replace the filter elements.
1. Remove and check thermostat.
2. Check gauge, sender and all connections.
1. Reduce the load.
2. Service air cleaner.
3. Replace fuel filters.
4. Refer to Engine Operator's Manual. Check
for plugged radiator/oil cooler fins.
5. Remove and check thermostat.
6. Refer to Engine Operator's Manual.
1. Add oil.
2. Check gauge, sender and connections.
3. Drain and fill crankcase with proper viscosity
and quality.
1. Reduce the load.
2. Fill radiator to proper level, check radiator
and hose for loose connections or leaks.
3. Clean fins.
4. Replace radiator cap.
5. Flush cooling system.
6. Replace thermostat.
gauge or
7. Check and replace.
Action
starting procedure in Engine