5 - 36
System
Faults
Possible causes
Solutions
Engine
Engine overheat
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Lack of engine coolant
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Bad fan belt tension or broken
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Dirt attached to the radiator
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Supplement
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Adjust belt tension or
replace
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Clean
The color of exhausted
smoke is white.
▲
Air cleaner clogged
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Engine oil exceeded
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Lack of fuel supply
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Wash element
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Adjust in proper level
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Repair
The color of exhausted
smoke is black.
▲
Bad quality of fuel
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Oversupply of fuel
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Fault of nozzle
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Use good quality fuel
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Repair
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Repair
Engine power is low.
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Injection nozzle clogged
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Carbon piled to valve seat
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Bad adjustment of valve gap
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Bad injection timing
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Lack of fuel supply
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Air cleaner clogged
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Repair
▲
Repair
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Repair
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Repair
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Check fuel system
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Clean or replace
Engine oil pressure
indicator is ON during
operation.
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Lack of engine oil
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Low viscosity of engine oil
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Warning light switch error
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Fault of oil pump
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Oil filter element is clogged
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Supplement
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Replace the proper oil
viscosity
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Replace
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Repair
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Replace element
Battery charging
indicator is ON during
operation
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Abnormal wiring
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Fault of alternator
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Fault of battery
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Bad fan belt tension or broken
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Check battery terminals and
ground, repair
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Repair or replace
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Replace
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Adjust belt tension or replace
Electronic control
errors related with
TIER4 engine.
Fault of electric sensors or wire
harness or ECU
▲
Contact your authorized
local dealer.
Clutch
Clutch is slipped.
▲
Wrong clutch pedal play
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Friction lining worn or broken
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Adjust
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Replace
Clutch does not cut-off.
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Lining damaged
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Wrong clutch pedal play
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Repair or replace
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Adjust