Komatsu WA250PT-5H, Operation & Maintenance Manual

Page: 66 / 255

Explanation of components
OPERATION
Machine monitor
3-8
Types of warning 0.
If an abnormality occurs on the machine, or if any switch or
lever is operated accidently, the monitor display and buzzer
give a warning to inform the operator.
Following are the types of warning depending on the level of
danger.
REMARK
For details of action codes “E03“ to “E00“, see “Action
code display on page 3-11“.
Emergency stop 0.
This warning is given if there is a serious failure that affects the normal operation of the machine or if the setting is
incorrect.
The central warning lamp on the monitor and the caution lamp for the location of the abnormality light up, and at
the same time, the alarm buzzer sounds and action code “E03“ is displayed on character display (1).
Caution 0.
This warning is given if the cooling water or lubricating oil overheat.
The central warning lamp on the monitor and the individual caution lamps light up, and at the same time, the alarm
buzzer sounds and action code “E02“ is displayed on character display (1).
MIistaken operation 0.
This warning is given if any switch or lever is operated mistakenly.
The central warning lamp on the monitor lights up and the alarm buzzer sounds at the same time. In addition, if
the travel speed is too high, action code “E00“ is displayed on character display (1).
Inspection and maintenance 0.
This warning is given if it is necessary to carry out inspection and maintenance of wear parts, or if it is necessary to
check the oil or cooling water level.
The individual caution lamp on the monitor lights up, and at the same time, action code “E01“ is displayed on
character display (1).
In the case of this warning, the central warning lamp does not light up and the alarm buzzer does not sound.