Komatsu WA250PT-5H, Operation & Maintenance Manual

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OPERATION
Explanation of components
Machine monitor
3-15
Engine oil pressure caution lamp 0.
This lamp (2) lights up to warn the operator that the engine
lubricating oil pressure has dropped.
During checks before starting (starting switch at the ON posi-
tion, engine stopped) the lamps are lighted up, and when the
engine is started, the lamps go out.
During operation (engine running)
If the engine lubricating oil pressure goes down during opera-
tion, the engine lubricating oil pressure caution lamp and cen-
tral warning lamp light up and the alarm buzzer sounds
intermittently.
At the same time, “E03 CALL“ and “CHECK RIGHT NOW“ are displayed on the character display in turn, so stop
the machine immediately in a safe place, then stop the engine and carry out inspection.
Battery charge circuit caution lamp 0.
This lamp (3) lights up when the engine is running to warn the
operator that an abnormality has occurrred in the charging cir-
cuit.
During checks before starting (starting switch at the ON posi-
tion, engine stopped) the lamps are lighted up, and when the
engine is started, the lamps go out.
During operation (engine running)
If an abnormality occurrs in the charging circuit during opera-
tion, the battery charge circuit caution lamp and central warn-
ing lamp light up and the alarm buzzer sounds intermittently.
At the same time, “E03 CALL“ and “CHECK RIGHT NOW“ are
displayed on the character display in turn, so stop the machine
immediately in a safe place, then stop the engine and carry out
inspection.
Steering oil pressure caution lamp 0.
(Red)
This lamp (4) lights up to warn the operator that the steering oil
pressure has dropped.
During checks before starting (starting switch at the ON posi-
tion, engine stopped) the lamps are lighted up, and when the
engine is started, the lamps go out.
During operation (engine running)
If the steering oil pressure goes down during operation, the
steering oil pressure caution lamp and central warning lamp
light up and the alarm buzzer sounds intermittently.
At the same time, “E03 CALL“ and “CHECK RIGHT NOW“ are
displayed on the character display in turn, so stop the machine
immediately in a safe place, then stop the engine and carry out
inspection.