Bosch GLL 2 Professional Notice Originale page 17

OBJ_BUCH-2413-002.book Page 17 Tuesday, August 30, 2016 12:40 PM
– Mark the centre of the vertical laser line at the floor of the door opening
(point I), at a distance of 5 m beyond the other side of the door open-
ing (point II) and at the upper edge of the door opening (point III).
– Rotate the measuring tool by 180° and position it on the other side of
the door opening directly behind point II. Allow the measuring tool to
level in and align the vertical laser line in such a manner that its centre
runs exactly through points I and II.
– Mark the centre of the laser line at the upper edge of the door opening
as point IV.
– The difference d of both marked points III and IV results in the actual
deviation of the measuring tool to the plumb line.
The maximum admissible deviation is calculated as follows:
Doubled height of the door opening x 0.5 mm/m
Example: For a door-opening height of 2 m, the maximum
deviation may be 2 x 2 m x ±0.5 mm/m = ±2 mm. Consequently, points
III and IV may be no more than 2 mm (max.) apart from each other for
each of both measurements.
Bosch Power Tools
English | 17
1 609 92A 21X | (30.8.16)