Table 4-1.--Diesel Engine Troubleshooting Chart--Continued
Starter operates but engine Fuel inadequate for combustion.
Test fuel pump drive.
Check supply at tank.
Check fuel cutoff valve.
Change fuel filter.
Test fuel pump volume output.
Test fuel system pressure.
Drain contaminated fuel from sys-
Injector timing wrong.
Correct injector timing.
Engine stop solenoid stuck in stop Check electrical stop circuit.
Governor stop lever stuck in stop Service governor linkage. Check
Air entering fuel lines between fuel Check hoses and hose connections
pump and fuel tank.
Check fuel strainer gasket for air
Fuel system priming lost (if tractor Prime fuel system.
ran out of fuel).
Check air cleaner.
Emergency shutdown valve closed.
Reset emergency shutdown valve.
Uneven running or stalling:
remains below 170
Exhaust valve and/or injector timing Perform turn-up.
Drain fuel tanks, add specified
Fuel inadequate due to faulty injec- Service injectors.
Fuel pressure low.
Test fuel pressure.
Test cylinder compression.