Komatsu WA100M-7, Operation And Maintenance Manual

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4.6 Other troubles Troubleshooting
4-12
WA80M-7, WA100M-7 – VENAM03001
4.6.2 Engine
If errors or causes of errors occur that are not listed here, have
the repair performed by your Komatsu distributor.
*) These tasks should be performed by the distributor.
ENGINE
Fault Cause Remedy
Engine oil pressure caution lamp:
The engine oil pressure caution
lamp lights up and the acoustic
warning signal sounds while the
engine is running
Oil level in the engine is too low Add engine oil
Engine oil filter (filter cartridge)
clogged Replace engine oil filter (filter car-
tridge)
Lines or hoses of the engine lubrica-
tion damaged
Check lines and hoses (visual
inspection: discharge of oil)
Replace defective lines and
hoses *)
Line or hose connections of the
engine lubrication defective
Check line and hose connections
(visual inspection: discharge of oil)
Repair leaky line and hose
connections *)
Oil pressure switch is not function-
ing
Check the function of the oil pres-
sure switch; replace defective oil
pressure switch *)
Pressure is escaping from the pres-
sure valve of the radiator cap
Coolant level in the radiator too low
Add coolant (observe the correct
mixing ratio)
Coolant level too low Coolant system leaky
Check lines and hoses (visual
inspection: discharge of coolant)
Replace defective lines and
hoses *)