Komatsu WA250PT-5H, Operation & Maintenance Manual

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OPERATION
Explanation of components
Machine monitor
3-11
Action code display 0.
WARNING
If action code E03 is displayed, stop the machine immediately and check the failure code. For details,
see “Failure code display on page 3-12“.
Inform your Komatsu distributor of the failure code and ask for repairs.
If there is a failure on the machine, or it is necessary to change the method of operation, or if inspection or mainte-
nance must be carried out, action code E00, E01, E02, or E03 is displayed on the character display in display por-
tion (3).
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, E00.
In the case of action codes E00, E02, and E03, the alarm buzzer sounds intermittently and the central warning
lamp lights up.
If action codes E00, 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 immedi-
ately, check the failure code, and contact your Komatsu dis-
tributor for repairs.
REMARK
“E03 CALL“ is displayed on the character display, and
then “CHECK RIGHT NOW“ and “E03 CALL“ are displayed
in turn for 3 seconds each.
E02: If overrun related information is displayed, reduce the
engine speed and the speed of the machine while continu-
ing 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
“E02“ is displayed on the character display, and then the
condition of the machine related to the overheating or
overrun is displayed in turn with “E02“ for 3 seconds each.
E01: When a failure occurs in the mechanical system, such as
a drop in the level of the engine cooling water, the mainte-
nance location is displayed. If the maintenance caution
lamp lights up at the same time, carry out inspection and
maintenance of the item indicated after completion of the
day's work or when changing shifts. If “MAINTENANCE“ is
displayed together with E01, check the failure code and ask
for repairs to be carried out.
REMARK
“E01“ is displayed on the character display, and then
“MAINTENANCE“ or the part of the machine requiring
inspection, filling of fluid, or replacement is displayed on
the bottom line.