Komatsu ecot3 WA430-6 Operation & Maintenance Manual page 71

EXPLANATION OF COMPONENTS
EMERGENCY STOP ITEMS
If these lamps light up and the buzzer sounds, stop operations immediately and carry out inspection and maintenance of the
applicable location.
If any abnormality is found in the emergency stop items, the alarm buzzer will sound intermittently, and the lamp for
the location of the abnormality and the central warning lamp will light up.
At the same time, the top line of the character display displays "E03" and the bottom line displays "CHECK RIGHT
NOW" and "CALL" alternately for 3 seconds each, so stop the machine immediately in a safe place, stop the engine,
and carry out inspection.
(1) Brake oil pressure caution lamp
(2) Engine oil pressure caution lamp
(3) Battery charge circuit caution lamp
BRAKE OIL PRESSURE CAUTION LAMP
This lamp (1) lights up when the brake oil pressure goes below the
specified value.
During checks before starting (when the starting switch is turned to
the ON position but the engine is not started), the brake circuit is
not actuated while the engine is stopped, so the brake oil pressure
caution lamp and central warning lamp do not light up and the
alarm buzzer does not sound.
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CAUTION
(4) Steering oil pressure caution lamp
(if equipped)
OPERATION