Engine Trouble Shooting - Atlas Copco Qas 58Jd Manuel D'instructions

ENGINE TROUBLE SHOOTING

POSSIBLE CAUSE
SYMPTOM
Engine cranks but will not
Incorrect starting procedure.
start.
No fuel.
Exhaust restricted.
Fuel filter plugged or full of water.
Injection pump not getting air or fuel.
Faulty injection pump or nozzles.
Engine hard to start or will
Improper starting procedure.
not start.
No fuel.
Air in fuel line.
Cold weather.
Slow starter speed.
Crankcase oil too heavy.
Improper type of fuel.
Water, dirt or air in fuel system.
Clogged fuel filter.
Dirty or faulty injection nozzles.
Engine knocks Low engine oil level.
Injection pump out of time.
Low coolant temperature.
Engine overheating.
Engine runs irregularly or Low coolant temperature.
stalls frequently
Clogged fuel filter.
Water, dirt, or air in fuel system.
Dirty or faulty injection nozzles.
Below normal engine
Defective thermostat.
temperature
Defective temperature gauge or sender.
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CORRECTIVE ACTION
Verify correct starting procedure.
Check fuel in tank and manual shut-off valve.
Check and correct exhaust restriction.
Replace fuel filter or drain water from filter.
Check fuel flow at supply pump or bleed fuel system.
Consult authorized diesel repair station.
Verify correct starting procedure.
Check fuel tank.
Bleed fuel line.
Use cold weather starting aids.
See "Starter cranks slowly".
Use oil of proper viscosity.
Consult fuel supplier; use proper type of fuel for operating conditions.
Drain, flush, fill, and bleed system.
Replace filter element.
Consult authorized diesel repair station.
Add oil to engine crankcase.
See your authorized servicing dealer or engine distributor.
Remove and check thermostat.
See "Engine Overheats".
Remove and check thermostat.
Replace fuel filter element,
Drain, flush, fill and bleed system.
See your authorized servicing dealer or engine distributor.
Remove and check thermostat.
Check gauge, sender and connections.
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