Komatsu PW160-7K Series, Operation And Maintenance Manual

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OPERATION TROUBLESHOOTING
221
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 monitor trouble display
(*) For detail of operating the pump override switch and the swing
override switch, refer to "SWITCHES"
Monitor display Error mode Countermeasure
E01 Suspension lock system error
Place the machine in a safe posture, then have it
inspected immediately by your Komatsu distribu-
tor
E02 TVC valve system error
If the pump override switch is set to the ON posi-
tion, operation can be carried out. However,
immediately have the PC-EPC valve system
inspected by your Komatsu distributor. (*)
E03 Swing brake system error
Turn the swing prolix switch ON to cancel the
brake.
When applying the swing brake, operate the
swing lock manually.Depending on the cause of
the failure, it may be impossible to release the
brake. In any case, have the system inspected
immediately by your Komatsu distributor. (*)
E05 Governor system error
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.
E20 Travel system error
If the travel override switch is set to ON position,
operation can be carried out. However, immedi-
ately have the TVC valve system inspected by
your Komatsu distributor.
CALL
Error indicating that operation can-
not be continued
Place the machine in a safe posture, then have it
inspected immediately by your Komatsu distribu-
tor.
In the case where the monitor will not display error codes
and work equipment operation and swing operation cannot
be carried out.
Have the machine inspected immediately by
your Komatsu distributor.