Komatsu WA380-6 Operation & Maintenance Manual page 66

OPERATION
ACTION CODE DISPLAY
If action code E03 is displayed, stop the machine immediately and check the failure code. For details, see "FAILURE CODE
DISPLAY (PAGE 3-11)".
Inform your Komatsu distributor of the failure code and ask for repairs.
If there is a failure on the machine, if it is necessary to change the method of operation, or if inspection or
maintenance must be carried out, action code E01, E02, or E03 is displayed on the character display in display
portion (2).
If different failures occur at the same time, the action code for the more serious problem is displayed.
The level of seriousness is as follows, starting with the most serious: E03, E02, E01.
In the case of action codes E02, and E03, the alarm buzzer sounds intermittently and the central warning lamp lights
up.
If action codes E01, E02, or E03 are displayed on the character display, stop operations, check the content of the
display, and take the following action.
E03: When this code is displayed, stop the machine immediately,
check the failure code, and contact your Komatsu distributor
for repairs.
REMARK
"E03" is displayed on the top line of the character display and
"CHECK RIGHT NOW" and "CALL" are displayed in turn on the
bottom line for 3 seconds each.
The telephone number is displayed to the right of "CALL". If no
telephone number has been set, the display is blank. For
details of the method of inputting the telephone number, see
Section "INPUT METHOD FOR TELEPHONE NUMBER
(PAGE 3-34)".
E02: If this code is displayed, stop the machine and run the engine
under no load at a mid-range speed.
If an action code is still displayed after taking the necessary
action, check the failure code and contact your Komatsu
distributor for repairs.
REMARK
The top line of the character display displays "E02" and the bottom
line displays the condition of the machine related to overheating.
WARNING
EXPLANATION OF COMPONENTS
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