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Rotate the unit by 180° without changing the height. Allow it to level and mark the center point of the laser
beam on Wall A (point III). Take note that point III is as vertical as possible above or below point I.
The difference (D) of both marked points I and III on Wall A amounts to the actual deviation of the plumb up
beam.
D-value should be less than 0.15” (4mm).
D
Содержание HV8RL
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