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OPERATION
Electronic Control System
If an error code appears on the machine monitor display (normally displays TIME), follow the countermeasure
table as shown below in the self-diagnosis.
Machine Monitoring System
Monitor
display
E02
PC-EPC valve system error
E03
Swing brake system error
E05
Governor system error
In the case where the monitor will not dis-
play error codes and work equipment
operation and swing operation can not be
carried out.
(*) For details of the method of handling the emergency pump drive switch and swing holding brake cancel switch,
see SWITCHES ( 3-27 ).
Error mode
If the pump override switch is set to the ON position, operation can
be carried out. However, immediately have the TVC valve system
inspected by your Komatsu distributor. (*)
Turn the swing prolix switch ON to cancel the brake.
When applying the swing brake, operate the swing lock switch
manually. Depending on the cause of the failure, it may be impos-
sible to release the brake. In any case, have the system inspected
immediately by your Komatsu distributor. (*)
Governor will not execute the control function.
Manually operate the governor-lever. To fix the governor lever at
the full stroke position, use the retaining bolt holes on bracket. In
this case, immediately have the governor system inspected by
your Komatsu distributor.
Have the machine inspected immediately by your Komatsu distrib-
utor.
TROUBLES AND ACTIONS
Countermeasure
0.
0.
3-131
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