Komatsu D31EX-21, Operation & Maintenance Manual, Page: 72 / 256

EXPLANATION OF COMPONENTS
OPERATION
3-20
LAMPS 3
WARNING LAMP
(Red)
NOTICE
If alarm buzzer sounds, stop work immediatey and perform
inspection and maintenance of the appropriate point.
This lamp (1) flashes when the caution lamp flashes and when
an action code is displayed on display panel B (multi-informa-
tion).
When the caution lamp (A) of an emergency warning item
flashes, or when the part of an action code is displayed, the
alarm buzzer sounds continuously at the same time.
FILTER/OIL REPLACEMENT INTERVAL LAMP
(Yellow)
If it is time to replace a filter or change the oil, this lamp (2)
lights up or flashes for approx. 30 seconds after the starting
switch is turned ON.
REMARK
This lamp (2) lights up if there is less than 30 hours remaining
until replacement, and flashes when the replacement interval
has passed.
At the same time, maintenance caution lamp (A) also lights up.
(1) Warning lamp (2) Filter/oil replacement interval lamp