Troubleshooting (Engine) - MULTIQUIP LT6D Operation Manual

Symptom
Engine does not start.
Starter does not run.
Engine fails to start and
starter does not engage
Engine fails to start and
starter engages
LT6D LIgHT TOWeR • OpeRaTIOn manuaL — Rev. #0 (07/16/13) — page 59
Table 12. Engine Troubleshooting
possible Cause
No fuel?
Air in the fuel system?
Water in the fuel system?
Fuel pipe clogged?
Fuel filter clogged?
Excessively high viscosity of fuel or engine
oil at low temperature?
Fuel with low cetane number?
Fuel leak due to loose injection pipe
retaining nut?
Incorrect injection timing?
Fuel cam shaft worn?
Injection nozzle clogged?
Injection pump malfunctioning?
Seizure of crankshaft, camshaft, piston,
cylinder liner or bearing?
Compression leak from cylinder?
Improper valve timing?
Piston ring and liner worn?
Excessive valve clearance?
Battery discharged?
Starter malfunctioning?
Key switch malfunctioning?
Dead battery?
Defective ignition switch?
Defective starter?
Burned fuse?
Broken preheat circuit?
No fuel?
Defective wiring?

troublesHooting (engine)

Replenish fuel.
Bleed system.
Remove water from fuel tank.
Clean fuel pipe.
Clean or change fuel filter.
Use the specified fuel or engine oil.
Use the specified fuel.
Tighten nut.
Adjust.
Replace.
Clean injection nozzle.
Repair or replace.
Repair or replace.
Replace head gasket, tighten cylinder head
bolt, glow plug and nozzle holder.
Correct or replace timing gear.
Replace.
Adjust.
Charge battery.
Repair or replace.
Repair or replace.
Replace battery.
Replace ignition switch.
Replace starter
Replace fuse.
Check preheat circuit.
Add diesel fuel.
Check wiring.
Solution