Komatsu GD555-5 Operation & Maintenance Manual page 62

OPERATION
ACTION CODE DISPLAY
If action code E03 is displayed, stop the machine immediately and ask your Komatsu distributor to carry out repairs.
If the machine has failed, or if there has been excessive load on the machine, or if it is necessary to carry out
inspection and maintenance, an action code is displayed on this panel (3) to recommend suitable action.
If more than one failure occurs at the same time, the most important action code is displayed. The order of
importance, starting from the highest, is E03, E02, and E01. If failures of equal importance occur at the same time,
the latest one is displayed.
When action codes E02 or E03 occur, the alarm buzzer sounds intermittently and the centralized warning lamp
lights up.
E03
If code E03 is displayed, stop the machine immediately, check the
failure code, then ask your Komatsu distributor to carry out repairs.
For details of the method of displaying the failure code, see
"FAILURE CODES (PAGE 3-192)".
REMARK
"E03" is displayed on the top line of the character display, and
"CHECK RIGHT NOW" and "CALL" are displayed in turn for 3
seconds each on the bottom line.
On the right side of the "CALL" display, a telephone number is
displayed. If no telephone number has been set, this space is
blank. For details of the method of setting the telephone
number, see "INPUT METHOD FOR TELEPHONE NUMBER
(PAGE 3-31)".
E02
If an overrun related display is given, reduce the engine speed and
machine speed while continuing operations.
If an overheat related display is given, stop the machine and run at
the engine at a mid-range speed under no load.
After taking the above action, if an action code is displayed, check
the failure code and ask your Komatsu distributor to carry out
repairs.
For details of the method of displaying the failure code, see
"FAILURE CODES (PAGE 3-192)".
REMARK
The top line of the character display displays "E02" and the bottom
line displays the condition of the machine related to overrun or
overheat.
CAUTION
EXPLANATION OF COMPONENTS
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