WORKING ACCURACY
Phenomena
Check item
Reference
The value varies
largely when check-
ing or adjusting the
accuracy of bucket
edge.
Reciprocate each cylinder by 1 round trip to place it to both stroke
ends.
Detection of cylinder stroke may have an error, reset the detection by
placing it to the stroke end.
-
Check that the IMU adjustment is normal.
If the adjustment is necessary, perform the adjustment execute, and
then check the accuracy of bucket edge again.
IMU ADJUSTMENT
Finishing accuracy is
poor.
•
Average eleva-
tion of finished
face is deeper
than the design
data or does not
reach the de-
sign data.
•
The finished
surface is rip-
pled.
Check that the error message of “Initializing...”, etc. is displayed on
the screen of control box.
The accuracy of bucket edge is deteriorated if an error message is
displayed.
Wait for the message to be cleared, and then start the work.
PHENOMENA AND
ACTIONS FOR CON-
TROL BOX
Check that the coordinates of bucket edge position changes largely.
The changes of bucket edge behavior may occur irregularly due to
the fluctuation of GNSS antenna position.
If the things are not improved after waiting a while, acquire the satel-
lite again.
BUCKET EDGE PO-
SITION
METHOD FOR RE-
SETTING CONNEC-
TION
Check that there is no defect such as hole or protrusion exists on the
design data.
If there is any defect, semi-auto mode may not operate normally.
-
Check that the machine is on the stable ground so that it is not shak-
en.
Depending on the response of IMU sensor which detects the ma-
chine posture, if the machine rocks largely, machine may dig in the
design data, but it is not a trouble.
PRECAUTIONS FOR
REPLACING PARTS
AND FAILURES
Check that the IMU adjustment is normal.
If the adjustment is necessary, perform the "Adjustment Execute",
and then check again that the facing angle compass is normally dis-
played.
IMU ADJUSTMENT
Check that the bucket weight setting is complied with the actual
bucket installed.
The accuracy of construction may decrease if the bucket weight set-
ting is not correct.
Change the setting to be appropriate with the bucket weight setting.
BUCKET WEIGHT
SETTING
Check that the boom fine control adjustment is completed.
When the bucket weight setting is changed, the starting movement of
the work equipment becomes unstable, so does the machine behav-
ior.
Perform the Boom Fine Control Adjustment always when the bucket
weight setting is changed.
BOOM FINE CON-
TROL ADJUSTMENT
Check the stop control adjustment.
SEMI-AUTO AD-
JUSTMENT
TROUBLESHOOTING
EXECUTIONS
8-60
Summary of Contents for A31001
Page 12: ...LOCATION OF SAFETY LABELS Options are shown with marks in the figure SAFETY LABELS SAFETY 2 4...
Page 106: ......
Page 107: ...SPECIFICATIONS 5 1...
Page 110: ......
Page 116: ......
Page 117: ...SETTING 7 1...
Page 311: ...EXECUTIONS 8 1...
Page 376: ...PC360LCi 11 PC390LCi 11 HYDRAULIC EXCAVATOR Form No CEAM032703...
