Working Advice - Bosch GRL Professional 250 HV Notice Originale

OBJ_BUCH-757-005.book Page 32 Thursday, March 4, 2010 1:50 PM
32 | English

Working Advice

Always use the centre of the laser point for
marking. The size of the laser point changes
with the distance.
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 safety
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.
Working with the Laser Receiver (Accessory)
Under unfavourable light conditions (bright en-
vironment, direct sunlight) and for larger dis-
tances, use the laser receiver for improved find-
ing of the laser beam 28.
When working with the laser receiver, select ro-
tational operation with the highest rotational
speed.
Before working with the laser receiver, read and
observe the laser receiver operating instructions.
Working with the Remote Control (Accessory)
While pressing the operator buttons, the meas-
uring tool can be brought out of alignment so
that the rotation is briefly stopped. This effect is
avoided when using the remote control 25.
Reception lenses 7 for the remote control are lo-
cated on three sides of the measuring tool,
among other locations above the control panel
on the front side.
Working with the Tripod (Accessory)
The measuring tool is equipped with a 5/8" tri-
pod mount for horizontal operation on a tripod.
Place the measuring tool via the tripod mount
18 onto the 5/8" male thread of the tripod and
screw the locking screw of the tripod tight.
On a tripod 26 with a measuring scale on the el-
evator column, the height difference can be ad-
justed directly.
2 610 A12 916 | (4.3.10)
Working with Wall Mount/Alignment Unit
(Accessory) (see figure A)
You can also mount the measuring tool to the
wall mount with alignment unit 30. For this,
screw the 5/8" screw 33 of the wall mount into
the tripod mount 18 of the measuring tool.
Mounting to a wall: Mounting to a wall is recom-
mended, e.g., for work above the elevation
height of tripods or for work on unstable surfac-
es and without tripod. For this, fasten the wall
mount 30, with the measuring tool mounted, as
vertical as possible to a wall.
For mounting to the wall, you can either fasten
the wall mount 30 with fastening screw 31 to a
lath (width maximal 8 mm) or hang it up with
two hooks.
Mounting on a tripod: The wall mount 30 can al-
so be screwed onto a tripod with the tripod
mount on the back side. This method of fasten-
ing is especially recommended for work where
the rotational plane is to be aligned with a refer-
ence line.
With the alignment unit, the mounted measuring
tool can be moved vertically (when mounted to
the wall) or horizontally (when mounted to a tri-
pod) within a range of approx. 16 cm. For this,
loosen screw 32 on the alignment unit, move the
measuring tool to the desired position, and
retighten screw 32 again.
Working with the Ceiling Measurement Plate
(see figure A)
As an example, the ceiling measurement plate
35 can be used for easy height adjustment of
drop ceilings. Fasten the ceiling measurement
plate with the magnetic holder, e.g., to a beam.
The reflecting half of the ceiling measurement
plate improves the visibility of the laser beam in
unfavourable conditions; the laser beam can al-
so be seen from the rear side through the trans-
parent half.
Bosch Power Tools