Working Advice - Bosch BL 2L Professional Originalbetriebsanleitung

OBJ_BUCH-186-003.book Page 19 Monday, October 1, 2007 12:30 PM
– Mark the centre of the vertical laser line at
the floor of the door opening (point I), at a
distance of 5 metres beyond the other side of
the door opening (point II) and at the upper
edge of the door opening (point III).
– Position 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 manner that its
centre runs exactly throught points I and II.
– The difference d between point III and the
centre of the laser line at the upper edge of
the door opening results in the actual devia-
tion of the measuring tool from the vertical
plane.
– Measure the height of the door opening.
The maximum permitted deviation d
lated as follows:
d = double height of the door opening
max
x 0.3 mm/m
Example: With a door opening height of 2 me-
tres, the maximum permitted deviation is
d = 2 x 2 m x 0.3 mm/m = 1.2 mm. Thus, the
max
marks must not be more than 1.2 mm apart.

Working Advice

Always use the centre of the laser line for
marking. The width of the laser line changes
with the distance.
Working with the Alignment Plate
With the alignment plate 11, the measuring tool
can be aligned by a reference line or the vertical
laser line can be indicated at an angle of 45° or
90° to a reference line.
Bosch Power Tools
Position the measuring tool via the tripod mount
5 onto the pin 15 of the alignment plate. Posi-
tion it in such a manner on the alignment plate
that the vertical laser line (depending on the re-
quested angle) runs centrally through the align-
ment aid 12, 13 or 14.
Align the alignment plate 11 with the corre-
sponding alignment aids 12, 13 or 14 to the
desired reference line.
Working with the Measuring Plate (Accessory)
(see figure J)
With the measuring plate 19, it is possible to
project the laser mark onto the floor or the laser
height onto a wall.
With the zero field and the scale, the offset or
drop to the required height can be measured
and projected at another location. This elimi-
nates the necessity of precisely adjusting the
measuring tool to the height to be projected.
The measuring plate 19 has a reflective coating
that enhances the visibility of the laser beam at
greater distances or in intense sunlight. The
brightness intensification can be seen only
when viewing, parallel to the laser beam, onto
the measuring plate.
Working with the Tripod
A tripod provides for a sturdy, height-adjustable
measuring support. Screw the measuring tool
is calcu-
max
via the tripod mount 5 onto a commercially avail-
able 1/4" tripod.
Laser viewing glasses (Accessory)
The laser viewing glasses filter out the ambient
light. This makes the red light of the laser ap-
pear brighter for the eyes.
Do not use the laser viewing glasses as safe-
ty goggles. The laser viewing glasses are
used for improved visualisation of the laser
beam, but they do not protect against laser
radiation.
Do not use the laser viewing glasses as sun
glasses or in traffic. The laser viewing glass-
es do not afford complete UV protection and
reduce colour perception.
English | 19
1 609 929 K01 | (1.10.07)