Aksa APD 12E - 10. ENGINE TROUBLESHOOTING GUIDE; Common Engine Problems and Solutions

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Other controls
• Clean the dust and dirt on the Gen. Sets by com-
pressed air.
• Check the exhaust system’s pipes, supports and flex-
ible pipes.
• Check the mounting bolts of the Genset and AVM’s
bolt tightness.
• Check transfer switch, bus bars, and connections.
• Check control panel cable connections.
D) 12 Months or 800 Hours Check
Repeat Maintenance “C” Check
• Check the valves setting and injectors.
Fuel System;
• Analyze/replace diesel fuel.
Cooling System
• Clean, exterior of radiators.
• Check, coolant treatment.
• Check, anti-freeze solution.
• Check, water pumps and circulating pumps.
• Examine duck work.
• Clean/check motor operated louvers (if installed).
Inspect the engine fan blades.
• Inspect the fan belt.
Intake System
• Check air cleaner element and change at 635 mm
H2O,
Clean
• The engine.
• Generator rotor and stator with compressed air.
Inspect
• Magnetic pick-up and adjust.
• Circuit breakers and fuse holders.
Additional to all above check
• Measure/record generator winding resistance with
Megger. • Perform full load test at Nameplate kW.
E) 24 Months or 2,000 Hours Check
• Exhaust restriction
• The valves settings
• The injectors settings
• Change Coolant and antifreeze and flush system
Additional to all above, do the regular maintenance.
10. ENGINE TROUBLESHOOTING
The starter turns the engine too slowly
• Battery capacity to low.
• Bad electrical connection.
• Faulty in starter.
• Wrong grade of lubricating oil.
The engine does not start or difficult to start
• Starter turns engine too slowly.
• Fuel tank empty .
• Faulty in fuel control solenoid.
• Restriction in a fuel pipe.
• Faulty in fuel lift pump.
• Dirty fuel filter element.
• Air in fuel system.
• Faulty in injectors or their adjustments.
• Fault in cold start system.
• Restriction in fuel tank vent.
• Wrong type or grade of fuel used.
• Restriction in exhaust pipe.
• Oil pressure sensor / switch or its connection is
faulty.
• Oil pressure is too high.
• Wrong grade of lubrication.
• Oil pressure indicator is faulty.
Not enough power
• Restriction in a fuel pipe. Faulty in fuel lift pump.
• Dirty fuel filter element.
• Air in fuel system.
• Restriction air filter/cleaner or induction system.
• Restriction in exhaust pipe.
• Fault in injectors or injectors are out of adjustment.
• Restriction in fuel tank vent.
• Wrong type or grade of fuel used.
• Restricted movement of engine speed control.
• Engine temperature is too high or low.
Misfire
• Restriction in a fuel pipe.