.
OPERATION
TROUBLESHOOTING
MONITOR PANEL
When an error code appears on the display panel B
(multi-information), take appropriate remedies based upon the
table below.
(1): Display panel B
(2): Warning lamp (red)
REMARK
If different kinds of failures occur at the same time, their failure
codes are arranged in the order of seriousness in the display.
The order of seriousness in this case is E04, E03, E02 and E01,
starting from the most serious one.
Error code Abnormality
Method of displaying
abnormality
Remedy
E01
Backup alarm does not sound
Fan rotation is too fast
Displays in turn with
service meter
Automatic functions stop, some
functions stop, but operation is
possible.
Please contact your Komatsu
distributor for repairs.
E02
Tilt limit does not work
Does not shift up or shift down
Pitch does not work
Abnormality code and
service hour are
displayed in turn on
service meter portion,
caution lamp flashes,
buzzer sounds
If user stops engine and then
starts again, operations are
possible without limit functions.
However, user must be careful.
Please contact your Komatsu
distributor immediately for repairs.
E03+CALL
Number of speed ranges that
can be used is limited
Engine does not run at full
speed
Excessive shock when shifting
gear
Turning ability becomes poor
Excessive braking shock
Abnormality in engine water
temperature sensor
Abnormality code and
service hour are
displayed in turn on
service meter portion,
caution lamp flashes,
buzzer sounds
Move machine to a safe place,
then contact your Komatsu
distributor immediately for repairs.
E04+CALL
Engine control impossible
Travel impossible
Machine does not stop
Abnormality code and
service hour are
displayed in turn on
service meter portion,
caution lamp flashes,
buzzer sounds
Stop machine, then contact your
Komatsu distributor immediately
for repairs.
Note: If a problem display appears on display panel B, check the fault code. For details, see "METHOD OF USING
FAULT CODE DISPLAY MODE (PAGE 3-30)".
When contacting your Komatsu distributor, please give the fault code also.
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