Working Advice; Maintenance And Service; Maintenance And Cleaning - Bosch GCL Professional 2-50 C Originalbetriebsanleitung

28 | English
Example: At a door opening height of 2 m, the maximum de-
viation amounts to
2 × 2 m × ±0.3 mm/m = ±1.2 mm. The points Ⅲ and Ⅳ
must therefore be no further than 1.2 mm from each other.
Checking Plumb Accuracy
For this check, you will need a clear measuring space on firm
ground with a distance of approx. 5 m between the floor and
the ceiling.
– Mount the measuring tool onto the rotating mount (23)
and place it on the floor. Select point mode and allow the
measuring tool to level in.
– Mark the centre of the top laser point on the ceiling
(point I). Also mark the centre of the bottom laser point
on the floor (point II).
d
– Turn the measuring tool by 180°. Position it so that the
centre of the bottom laser point falls onto the marked
point II. Allow the measuring tool to level in. Mark the
centre of the top laser point (point III).
– The discrepancy d between the two marked points Ⅰ and
Ⅲ on the ceiling reveals the actual deviation of the meas-
uring tool from the vertical plane.
You can calculate the maximum permitted deviation as fol-
lows:
Doubled distance between floor and ceiling × 0.7 mm/m
Example: At a floor-to-ceiling distance of 5 m, the maximum
deviation amounts to
2 × 5 m × ±0.7 mm/m = ±7 mm. The points Ⅰ and Ⅲ must
therefore be no further than 7 mm from each other.

Working Advice

Only the centre of the laser point or laser line must be
u
used for marking. The size of the laser point/the width of
the laser line changes depending on the distance.
1 609 92A 4HG | (12.11.2020)
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Working with the Laser Target Plate
The laser target plate (31) improves visibility of the laser
beam in unfavourable conditions and at greater distances.
The reflective surface of the laser target plate (31) improves
visibility of the laser line. The transparent surface enables
the laser line to be seen from behind the laser target plate.
Working with the Tripod (Accessory)
A tripod offers a stable, height-adjustable support surface
for measuring. Place the measuring tool with the 1/4" tripod
mount (18) on the thread of the tripod (32) or a conven-
tional camera tripod. Tighten the measuring tool using the
locking screw of the tripod.
Roughly align the tripod before switching on the measuring
5 m
tool.
Securing with the universal holder (accessory)
(see figure L)
Using the universal holder (26), you can secure the measur-
ing tool on vertical surfaces, pipes or magnetizable materi-
als, for example. The universal holder is also suitable for use
as a floor stand and facilitates height adjustment of the
measuring tool.
Roughly align the universal holder (26) before switching on
the measuring tool.
Working with the laser receiver (accessory)
(see figure L)
Use the laser receiver (29) to improve detection of the laser
lines in adverse lighting conditions (bright environment, dir-
ect sunlight) and over greater distances. When working with
the laser receiver, switch on receiver mode (see "Receiver
180°
Mode", page 25).
Laser Goggles (Accessory)
The laser goggles filter out ambient light. This makes the
light of the laser appear brighter to the eye.
u
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Example applications (see figures G–M)
Examples of possible applications for the measuring tool can
be found on the graphics pages.

Maintenance and Service

Maintenance and Cleaning

Keep the measuring tool clean at all times.
Never immerse the measuring tool in water or other liquids.
The measuring tool is equipped with a wireless inter-
face. Local operating restrictions, e.g. in aeroplanes
or hospitals, must be observed.
Do not use the laser goggles (accessory) as protective
goggles. The laser goggles make the laser beam easier to
see; they do not protect you against laser radiation.
Do not use the laser goggles (accessory) as
sunglasses or while driving. The laser goggles do not
provide full UV protection and impair your ability to see
colours.
Bosch Power Tools