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OBJ_BUCH-1179-006.book Page 23 Wednesday, February 1, 2017 10:13 AM
Working Instructions for the Rotational Laser
Level
Always use the centre of the laser line for marking. The
width of the laser line 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 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.
Working with the Tripod (Accessory)
The measuring tool is equipped with a 5/8" tripod mount for
horizontal operation on a tripod. Place the measuring tool via
the tripod mount 12 onto the 5/8" male thread of the tripod
and screw the locking screw of the tripod tight.
On a tripod 30 with a measuring scale on the elevator column,
the height difference can be adjusted directly.
Working with the Laser Target Plate (Accessory)
Using the laser target plate 37, it is possible to transmit the la-
ser 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 laser target plate 37 has a reflecting coating which im-
proves the visibility of the laser beam from a larger distance or
in case of strong sun rays. The luminosity can be recognized
only if you look to the laser target plate in parallel to the laser
beam.
Working with the Measuring Rod (Accessory)
For checking irregularities or projecting gradients, it is recom-
mended to use the measuring rod 31 together with the laser
receiver.
A relative millimetre scale (±50 cm) is marked on the top of
the measuring rod 31. Its zero height can be preset at the bot-
tom of the elevator column. This allows for direct reading of
deviations from the specified height.
Bosch Power Tools
Working Instructions for the Laser Receiver
Marking
When the laser beam runs through the center of the reception
area 24, its height can be marked at the centre mark 23 right
and left on the laser receiver. The centre mark is located
45 mm away from the top edge of the laser receiver.
Aligning with the Spirit Level
The laser receiver can be aligned vertically (plumb line) with
the spirit level 26. A laser receiver attached out-of-level leads
to faulty measurements.
Attaching with the Holder (see figure A)
With the holder 35, the laser receiver can be fastened to a
construction laser measuring rod 31 (accessory) as well as to
other auxiliary tools with a width of up to 65 mm.
– Screw the holder 35 to the retainer opening 29 on the rear
side of the measuring tool with fastening screw 34.
– Loosen the locking screw 32, slide the holder onto the con-
struction laser measuring rod 31, for example, and retight-
en the locking screw 32.
The upper edge 33 of the holder is located at the same height
as the centre mark 23 and can be used for marking of the laser
beam.
Attaching with the Magnet (see figure B)
When a positive-lock attachment is not absolutely required,
the laser receiver can be attached to steel parts via the face
side using the magnet plate 22.
Work Examples
Checking the Depth of Building Pits (see figure C)
– Position the measuring tool on a firm surface or mount it to
a tripod 30.
– Working with tripod: Align the laser beam to the requested
height. Project or check the height at the target location.
Working without tripod: Determine the height difference
between the laser beam and the height at the reference
point with the laser target plate 37. Project or check the
measured height difference at the target location.
When measuring over long distances, the measuring tool
should always be set up in the centre of the work surface and
on a tripod, in order to reduce interferences.
When working on unsafe ground, mount the measuring tool
onto the tripod 30. Take care that the shock-warning function
is activated, in order to avoid faulty measurements in case of
ground vibrations or shock to the measuring tool.
1 609 92A 1XU | (1.2.17)
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