Komatsu WA200-8 Operation & Maintenance Manual page 90

EXPLANATION OF COMPONENTS OPERATION
ENGINE OIL PRESSURE CAUTION LAMP
Engine oil pressure caution lamp warns about low engine lubri-
cating oil pressure.
If the engine oil pressure drops below the specified value while
the engine is running, the caution lamp lights up in red and ac-
tion level "L03" is displayed.
At the same time, the centralized warning lamp lights up and
alarm buzzer sounds intermittently.
Stop the operation, move the machine to a safe place, stop the
engine, then ask your Komatsu distributor for inspection and
maintenance.
ENGINE OVERRUN CAUTION LAMP
The engine overrun caution lamp warns the operator that the
engine speed is higher than the allowable range.
When the caution lamp lights up in red, the centralized warning
lamp lights up and the alarm buzzer sounds intermittently.
If the engine speed increases more, action level "L02" is dis-
played.
Operate the machine with moderate engine speed and travel
speed.
RADIATOR COOLANT LEVEL CAUTION LAMP
Radiator coolant level caution lamp warns about drop of radia-
tor coolant level.
If the caution lamp lights up in yellow and action level "L01" is
displayed, inspect the coolant level in the reservoir tank and
add coolant.
See "METHOD FOR CHECKING COOLANT LEVEL, ADDING
COOLANT".
If it occurs again in a short time, the coolant may be leaking
from the radiator. Ask your Komatsu distributor for inspection
and maintenance.
CHARGE LEVEL CAUTION LAMP
Charge level caution lamp warns about abnormality in the
charging system while the engine is running.
If the battery is not charged properly while the engine is run-
ning, the caution lamp lights up in red.
At the same time, action level "L03" is displayed and the cen-
tralized warning lamp lights up and the alarm buzzer sounds in-
termittently.
Stop the engine and check the alternator belt for damage, then
ask your Komatsu distributor for inspection and maintenance.
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