LS tractor J2020H Operator's Manual page 88

System Faults
Engine stops at low
speed revolution.
Engine overheat
The color of exhausted
smoke is white.
The color of exhausted
smoke is black.
Engine
Engine power is low.
Engine oil pressure
indicator is ON during
operation.
Battery charging
indicator is ON during
operation
Clutch is slipped.
Clutch
Clutch does not cut-off.
Possible causes
Fault of injection pump
▲
Valve gap is not correct
▲
Poor nozzle pressure
▲
Lack of coolant
▲
Bad fan belt tension or broken
▲
Dirt attached to the radiator
▲
Air cleaner clogged
▲
Engine oil exceeded
▲
Lack of fuel supply
▲
Bad quality of fuel
▲
Over fuel supply
▲
Fault of nozzle
▲
Injection nozzle clogged
▲
Carbon piled to valve seat
▲
Bad adjustment of valve gap
▲
Bad injection timing
▲
Lack of fuel supply
▲
Air cleaner clogged
▲
Lack of engine oil
▲
Low viscosity of engine oil
▲
Pressure switch error
▲
Fault of oil pump
▲
Engine oil filter clogged
▲
Bad electrical connection Bad electrical connection
▲ ▲
Fault of alternator
▲
Fault of battery
▲
Bad fan belt tension or broken
▲
Wrong adjustment of clutch
▲
pedal play
Friction lining worn or broken
▲
Lining damaged
▲
Clutch pedal play exceeded
▲
5 5 5 5 - 30
Solutions
Repair
▲
Adjust the gap
▲
Repair
▲
Supplement
▲
Adjust belt tension or
▲
replace
Wash
▲
Clean element or replace
▲
Adjust in proper level
▲
Repair
▲
Use good quality fuel
▲
Repair
▲
Repair
▲
Repair
▲
Repair
▲
Repair
▲
Repair
▲
Check fuel system
▲
Clean or replace
▲
Supplement
▲
Replace the proper oil viscosity
▲
Replace
▲
Repair
▲
Replace the filter
▲
Check battery terminals, Check battery terminals,
▲ ▲
ground, and repair
Repair or replace
▲
Replace
▲
Adjust belt tension or replace
▲
Adjust the pedal play
▲
correctly
Replace
▲
Repair or replace
▲
Adjust the pedal play
▲