Bosch Professional GLL 50 G - Working Advice

English | 17
2,5 m
2,5 m
2,5 m
2,5 m
2,5 m
2,5 m
– Mark the centre of the vertical laser line
on the floor of the door opening
(pointⅠ), 5m away on the other side of
the door opening (pointⅡ) and on the
upper edge of the door opening
(pointⅢ).
2 m
d
– Set up the measuring tool 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 way that its centre passes through
pointsⅠ andⅡ exactly.
– Mark the centre of the laser line on the upper edge of the door opening as pointⅣ.
– The discrepancy d between the two marked pointsⅢ and Ⅳ reveals the actual ver-
tical deviation of the measuring tool.
– Measure the height of the door opening.
You can calculate the maximum permitted deviation as follows:
Doubled height of the door opening×0.6mm/m
Example: At a door opening height of 2m, the maximum deviation amounts to
2×2m×±0.6mm/m=±2.4mm. The pointsⅢ and Ⅳ must therefore be no further
than 2.4mm from each other.
Working Advice
u Only the centre of the laser line must be used for marking. The width of the laser
line changes depending on the distance.
Bosch Power Tools 1 609 92A 8K4 | (01.06.2023)