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A
d
– Turn the measuring tool 180° without adjusting the height. Allow it to level in, then
mark the centre point of the laser beam on wall A (point Ⅲ). Ensure that point Ⅲ is as
vertical as possible above or below point Ⅰ.
– The discrepancy d between the two marked points Ⅰ and Ⅲ on wall A reveals the ac-
tual height deviation of the measuring tool along the longitudinal axis.
The maximum permitted deviation on the measuring distance of 2 × 5 m = 10 m is as fol-
lows:
10 m × ±0.35 mm/m = ±3.5 mm. The discrepancy d between points Ⅰ and Ⅲ must there-
fore amount to no more than 3.5 mm.
GPL 5 G: Repeat the measuring process for the two side laser beams that run along the
transverse axis of the measuring tool. To do this, turn the measuring tool 90° clockwise
or anticlockwise before beginning the measuring process.
Checking Plumb Accuracy
For this check, you will need a clear measuring space on firm ground with a distance of
approx. 2.5 m between the floor and the ceiling.
– Place the measuring tool on the floor. Switch the measuring tool on and rotate it on
the magnetic rotating mount (3) in such a manner that the bottom laser point can be
seen on the floor. Allow the measuring tool to level in.
Bosch Power Tools
B
180°
1 609 92A 7S8 | (17.05.2022)
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