Komatsu ecot3 GALEO HM300-2 Operation And Maintenance Manual page 60

OPERATION
ACTION CODE DISPLAY
If action code E03 is displayed, stop the machine immediately. Then see "ACTION CODE (PAGE 3-140)" and contact your Komatsu
distributor for 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 (4) 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 central warning lamp lights
up.
E03: When this code is displayed, stop the machine immediately,
check the failure code, and contact your Komatsu distributor
for repairs.
REMARK
The top line of the character display displays "E03" and the
bottom line displays "CHECK RIGHT NOW" and "CALL" in turn
for 3 seconds each.
The telephone number is displayed on the right of the "CALL"
display. If the telephone number has not been set, there is a
blank. For details of the method of setting the telephone
number, see "INPUT METHOD FOR TELEPHONE NUMBER
(PAGE 3-28)".
E02: If overrun related information is displayed, reduce the engine
speed and the speed of the machine while continuing
operations.
If the overheat related display is given, stop the machine and
run the engine under no load at a mid-range speed.
If an action code is still displayed after doing this, 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 overrun or
overheat.
CAUTION
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EXPLANATION OF COMPONENTS
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