Troubleshooting - Yanmar EF312T Operator's Manual

TROUBLESHOOTING

If abnormal operations are found, stop the engine and found a problem by referring to the following table.
1. Engine
PROBLEM
Starter motor
runs.
Engine hard
to start or
not start
Starter motor
doesn't run.
Engine runs irregularly or
stalls frequently
Engine knocks
Lack of engine power
CAUSE
No fuel or improper fuel
Water, dirt, or air in fuel system
Clogged fuel filter
Fuel shut-off valve closed
Accelerator lever not pulled
Engine oil too heavy
Reverser lever is not set to "N".
PTO shift lever is not set to "N".
Low voltage
Slow blow fuse blown
Vent in fuel tank cap clogged
Fuel filter clogged
Water, dirt, or air in fuel system
Dirty or faulty injection nozzles
Improper type of fuel
Engine solenoid linkage out of
adjustment
Insufficient oil
Low coolant temperature
Engine overheating
Idle speed too slow
Improper type of fuel
Engine overloaded
Air cleaner element clogged
Clogged fuel filter
Improper type of fuel
Engine overheating
Improper ballast
Hydraulic stop valve closed
Improper implement mounted
65
REMEDY
Fill fuel.
Drain wrong fuel and fill proper fuel.
Drain, flush & bleed fuel system.
Clean or replace fuel filter.
Open fuel shut-off valve.
Pull throttle lever.
Use oil of proper viscosity.
Set the lever to neutral.
Set the lever to neutral.
Charge battery.
Replace slow blow fuse.
Clean cap in solvent and blow dry.
Clean or replace fuel filter.
Drain, flush & bleed fuel system.
See your YANMAR dealer.
Use proper fuel.
See your YANMAR dealer.
Add oil
Remove and check glow plug.
See "Engine overheats".
Check idle speed.
Use proper fuel.
Reduce load or shift to lower gear.
Clean air cleaner element.
Clean or replace fuel filter.
Use proper fuel.
See "Engine overheats".
Adjust ballast to load.
Open stop valve.
Check required horsepower for
implement.
OPE_EF312T&352T_en.doc