Working Advice - Bosch GPL 5 Professional Manual Original

OBJ_BUCH-815-005.book Page 12 Monday, June 27, 2016 9:58 AM
12 | English
A
180˚
– Turn the measuring tool around by 180°, allow it to level in
and mark the centre point of the laser beam on the oppo-
site wall B (point II).
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 cen-
tre 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 deviation of the measuring tool
alongside the longitudinal axis.
On the measuring distance of 2 x 20 m = 40 m, the maximum
allowable deviation is: 40 m x ±0.3 mm/m = ±12 mm.
Thus, the difference d between points I and III may not ex-
ceed 12 mm (max.).
1 609 92A 272 | (27.6.16)

Working Advice

 Always use the centre of the laser point for marking.
B
The size of the laser point changes with the distance.
Attaching with the Holder
To fasten the measuring tool on the holder 8, screw the lock-
ing screw 9 of the holder into the 1/4" tripod mount 6 on the
measuring tool and tighten. To rotate the measuring tool on
the holder, slightly loosen the screw 9.
– Rotate the measuring tool on the holder 8 sideward or to-
ward the rear to make the bottom plumb beam visible.
– Rotate the measuring tool on the holder 8 to project
heights with the horizontal laser beam.
With the holder 8, the measuring tool can be attached as fol-
lows:
– Mount the holder 8 to the tripod 18 or a commercially
available camera tripod via the 1/4" tripod mount 13. For
fastening to a commercially available construction tripod,
B
use the 5/8" tripod mount 14.
– The holder 8 can be fastened to steel parts via the magnets
12.
– The holder 8 can be fastened to drywalls or wood walls
with screws. For this, insert screws with a minimum length
of 60 mm into the screw holes 10 of the holder.
– The holder 8 can also be fastened to pipes or similar beams
using a commercially available strap by threading it
through the opening 11 for strap attachment.
Working with the Tripod (Accessory)
A tripod 18 offers a stable, height-adjustable measuring sup-
port. Place the measuring tool via the tripod mount 6 onto the
1/4" male thread of the tripod and screw the locking screw of
the tripod tight.
Working with the Measuring Plate (Accessory)
B
180˚
With the measuring plate 15, 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 re-
quired height can be measured and projected at another loca-
tion. This eliminates the necessity of precisely adjusting the
measuring tool to the height to be projected.
The measuring plate 15 has a reflective coating that enhances
the visibility of the laser beam at greater distances or in in-
tense sunlight. The brightness intensification can be seen on-
ly when viewing, parallel to the laser beam, onto the measur-
ing plate.
Laser Viewing Glasses (Accessory)
The laser viewing glasses filter out the ambient light. This
makes the red light of the laser appear brighter for the eyes.
 Do not use the laser viewing glasses as safety goggles.
The laser viewing glasses are used for improved visualisa-
tion 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 glasses do not afford complete
UV protection and reduce colour perception.
Bosch Power Tools