XCMG XDN450 Operation Manual page 78

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Enter "rotation angle correction" area：
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Correction method:
1) In order to facilitate the correction, please remove the target box from the nose, connect
the operation line, and send power to the head.
2) Use the electronic leveler to correct the horizontal direction according to the following
figure.
3) Press
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4) Rotate clockwise about 5 degrees, then press the fine or coarse adjustment to make the
data on the display same as the electronic level (as shown above figure, rotation angle is
positive).
after adjust the target box to level；
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