Multiquip LT6K - Manual (Page 59)

LT6K LIgHT TOWeR • OpeRaTIOn manuaL — Rev. #1 (08/28/14) — page 59
troublesHooting (engine)
Table 12. Engine Troubleshooting
Symptom possible Cause Solution
Engine does not start.
No fuel? Replenish fuel.
Air in the fuel system? Bleed system.
Water in the fuel system? Remove water from fuel tank.
Fuel pipe clogged? Clean fuel pipe.
Fuel filter clogged? Clean or change fuel filter.
Excessively high viscosity of fuel or engine
oil at low temperature?
Use the specified fuel or engine oil.
Fuel with low cetane number? Use the specified fuel.
Fuel leak due to loose injection pipe
retaining nut?
Tighten nut.
Incorrect injection timing? Adjust.
Fuel cam shaft worn? Replace.
Injection nozzle clogged? Clean injection nozzle.
Injection pump malfunctioning? Repair or replace.
Seizure of crankshaft, camshaft, piston,
cylinder liner or bearing?
Repair or replace.
Compression leak from cylinder?
Replace head gasket, tighten cylinder head
bolt, glow plug and nozzle holder.
Improper valve timing? Correct or replace timing gear.
Piston ring and liner worn? Replace.
Excessive valve clearance? Adjust.
Starter does not run.
Battery discharged? Charge battery.
Starter malfunctioning? Repair or replace.
Key switch malfunctioning? Repair or replace.
Engine fails to start and
starter does not engage
Dead battery? Replace battery.
Defective ignition switch? Replace ignition switch.
Defective starter? Replace starter
Burned fuse? Replace fuse.
Engine fails to start and
starter engages
Broken preheat circuit? Check preheat circuit.
No fuel? Add diesel fuel.
Defective wiring? Check wiring.