Bosch GTL 3 Professional Originalbetriebsanleitung Seite 17

The maximum permitted deviation over the measuring
distance of 2 × 5 m = 10 m is as follows:
10 m × ±0.2 mm/m = ±2 mm. The discrepancy d
between points Ⅰ and Ⅴ must therefore amount to no
more than 2 mm.
Checking the angle accuracy between the 0° and 45°
laser lines
For this check, you will need a clear area of firm, level
ground measuring approx. 10 × 5 m.
– Place the measuring tool in one corner of the measur-
ing area. Switch the measuring tool on and set it up so
that the 0° laser line runs down the long side of the
measuring area and the 90° laser line runs down the
short side of the measuring area.
10 m
– Mark the point where the two laser lines intersect on
the ground (point Ⅰ). Make another mark in the centre
of the 0° laser line at a distance of 5 m (point Ⅱ) and
at a distance of 10 m (point Ⅲ).
– Position the measuring tool (without rotating it) at a
distance of 5 m so that the intersection point of the
laser lines meets point Ⅱ and the 0° laser line runs
through point Ⅲ. Mark the centre of the 45° laser line
at a distance of 5 m (point Ⅳ).
Bosch Power Tools
– Rotate the measuring tool through 45° so that the
centre of the 0° laser line runs through point Ⅳ. The
laser lines must still intersect at point Ⅱ. At a distance
of 5 m, mark the centre of the 45° laser line as
point Ⅴ.
– Rotate the measuring tool through 45° so that the
centre of the 0° laser line runs through point Ⅴ. The
laser lines must still intersect at point Ⅱ. At a distance
of 5 m, mark the centre of the 45° laser line as
point Ⅵ.
– Rotate the measuring tool through 45° so that the
centre of the 0° laser line runs through point Ⅵ. The
laser lines must still intersect at point Ⅱ. At a distance
of 5 m, mark the centre of the 45° laser line as
point Ⅶ as close as possible to point Ⅰ.
– The discrepancy d between points Ⅰ and Ⅶ is the ac-
tual deviation of the 0° and 45° laser lines.
1 609 92A 4HU | (16.01.2019)
English | 17