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OPERATION
ELECTRONIC CONTROL SYSTEM
When the user code is shown on the display portion of the machine
monitor, take the respective measures shown in the self-diagnosis
chart below.
MACHINE MONITORING SYSTEM
Failure
Caution
Buzzer
code
lamp
E01
-
-
Q
Q
E02
Q
Q
E03
E04
Q
Q
Remedy
Automatic functions stop, some functions
stop, but operation is possible
Ask your Komatsu distributor to carry out
repairs
After user action to stop engine,
operations are possible without limit
functions when engine is restarted.
However, user must be careful when
operating.
Ask your Komatsu distributor
immediately to carry out repairs
Move machine to safe place, then ask
your Komatsu distributor immediately to
carry out repairs
Stop machine immediately, then ask
your Komatsu distributor immediately to
carry out repairs
TROUBLESHOOTING
Problem that appears on machine
Inspect after completing operations
Automatic limits stop, but possible to
continue operations with care
After steering, directional, and gear shift
lever is returned to neutral, engine does
not run at full speed. Transmission is
fixed in 1st, so move to a safe place
and carry out inspection
After steering, directional, and gear shift
lever is returned to neutral, engine does
not run at full speed and machine
cannot travel
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