Komatsu D31EX-21, Operation & Maintenance Manual, Page: 58 / 256

EXPLANATION OF COMPONENTS
OPERATION
3-6
CHECK MONITOR SYSTEM 3
MONITOR SYSTEM
NOTICE
q
Stop the machine on level ground and carry out the monitor check.
q
Stop the engine, then turn the starting switch to the ON position and check that the lamps light up for
approx. 2 seconds. If they do not light up, please ask your Komatsu distributor to carry out inspec-
tion.
q
The monitor check cannot be carried out until at least 5 seconds has passed after the engine was
stopped.
When carrying out the checks before starting, use the monitor system check.
1. Turn the starting switch to the ON position.
2. Check that the monitor liquid-crystal display and the lamps
all light up for 2 seconds, that the alarm buzzer sounds for
2 seconds, and that “KOMATSU SYSTEM CHECK“ is dis-
played for 3 seconds on display panel B (multi-information)
(1).
q
After 2 seconds, the current status of the machine is
displayed on liquid-crystal display (2).
q
After 2 seconds, the lamp portion (3) goes out.
q
After 3 seconds, the operating mode is displayed on
display panel B (multi-information) (1).
REMARK
The following cases do not indicate any abnormality.
When the replacement interval is reached for the oil and filter,
maintenance caution lamp (4) and filter/oil replacement interval
lamp (5) light up or flash for 30 seconds, and the action code is
displayed on display panel B (multi-information) (1).