Bosch GPL 5 C Original Instructions Manual page 21

OBJ_BUCH-847-001.book Page 21 Friday, May 29, 2009 7:50 AM
– Without turning the measuring tool, position
it close to wall B. Switch the measuring tool
on and allow it to level in.
A
– Align the height of the measuring tool (using
the tripod or by underlaying, if required) in
such a manner that the centre point of the
laser beam is projected exactly against the
previously marked point II on wall B.
A
d
– Rotate the measuring tool by 180° without
changing the height. Allow it to level in and
mark the centre point of the laser beam on
wall A (point III). Take care 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 results in the actual height devi-
ation of the measuring tool for the first point
beam.
Repeat the measuring procedure for both other
point beams. For this, turn the measuring tool
by 90° each time before starting the measuring
procedure.
On the measuring distance of 2 x 20 m = 40 m,
the maximum allowable deviation is:
40 m x ±0.2 mm/m = ±8 mm.
Consequently, the difference d between points
I and III for each of the three individual measure-
ments may not exceed 8 mm.
Bosch Power Tools
Working Advice
For marking, always use only the centre of
the laser point or the laser line. The size of
the laser point as well as the width of the
B laser line change with distance.
Working with the laser target plate
The laser target plate 14 increases the visibility of
the laser beam under unfavourable conditions
and at large distances.
The reflective part of the laser target plate 14
improves the visibility of the laser line. Thanks to
the transparent part, the laser line is also visible
from the back side of the laser target plate.
Working with the Tripod (Accessory)
A tripod offers a stable, height-adjustable meas-
uring support. Position the measuring tool with
the 1/4" tripod mount 7 onto the thread of the
B
tripod 17 or a commercially available camera
180˚
tripod. For fastening to a commercially available
construction tripod, use the 5/8" tripod mount 6.
Tighten the measuring tool with the tripod
mounting stud.
Adjust the tripod roughly before switching on
the measuring tool.
Fastening with the Universal Holder
(Accessory)
With the universal holder 13, you can fasten the
measuring tool, e.g., to vertical surfaces, pipes
or magnetizable materials. The universal holder
is also suitable for use as a ground tripod and
makes the height adjustment of the measuring
tool easier.
Adjust the universal holder roughly before 13
switching on the measuring tool.
English | 21
1 609 929 S06 | (29.5.09)