Komatsu PC138US-11 Operation & Maintenance Manual page 100

EXPLANATION OF COMPONENTS
AIR CONDITIONER SYSTEM CAUTION LAMP
Air conditioner system caution lamp warns about abnormality in
air conditioner system.
When abnormal
The caution lamp lights up in yellow and indicates action level
"L01".
The air conditioner system has abnormality.
Ask your Komatsu distributor for inspection and maintenance
as soon as possible.
MAINTENANCE TIME CAUTION LAMP
Maintenance time caution lamp displays notices and alarms concerning maintenance time.
This lamp lights up when the starting switch is turned to "ON"
position. It goes out after 30 seconds and the display changes
to the standard screen.
When the due time is over
The caution lamp lights up in red.
The maintenance due time is over.
If no action is taken, the machine performance will become
worse and the machine life will be shortened.
Perform necessary maintenance as soon as possible.
When giving the notice of the due time
The warning lamp lights up in yellow.
The maintenance due time is approaching.
Prepare necessary parts for the maintenance.
REMARK
• Check maintenance items on "Maintenance" tab screen by
pressing switch F6 on the maintenance time warning
screen shown in the right drawing or on the standard
screen.
• The lighting time of maintenance due time notice (yellow)
has been initially set to 30 hours, but it can be changed.
To change the setting, ask your Komatsu distributor.
• For operations on "Maintenance" tab screen, see "MAIN-
TENANCE SCREEN SETTING (3-73)".
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OPERATION