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22 | English
u Avoid substantial knocks to the measuring tool and avoid dropping it. Damaging
the measuring tool can cause accuracy to be compromised. Calibrate the measuring
tool after it has been dropped or subjected to heavy impact. Check the laser line by
comparing it with a known horizontal or vertical reference line.
Switching On/Off
To switch on the measuring tool, briefly press the On/off button (2). The light-up
ring (3) flashes green three times when the battery has sufficient capacity; if the battery
is weak, it flashes yellow three times.
If the measuring tool is roughly vertical, it sends a laser line out of the outlet aperture (4)
immediately after switching on.
u Do not direct the laser beam at persons or animals and do not stare into the laser
beam yourself (even from a distance).
To switch off the measuring tool, briefly press the on/off button (2) again.
u Never leave the measuring tool unattended when switched on, and ensure the
measuring tool is switched off after use. Others may be blinded by the laser beam.
If no button on the measuring tool is pressed for approx. 15 minutes and the housing is
not rotated, the measuring tool will automatically switch off to preserve battery life.
Levelling in the laser line (see figure C)
The laser line is only switched on if the measuring tool is tilted no more than 10° forwards
or backwards.
The laser line can either be levelled in horizontally to the right (90°) or left (270°), or ver-
tically upwards (0°) or downwards (180°).
The levelling status is indicated by means of the light-up ring (3):
Light-up ring
Levelling
Red
The laser line is neither horizontal nor vertical. Turn the housing of
the measuring tool so that it is horizontal or vertical as required.
The laser line is close to being completely horizontal or vertical. To
precisely adjust the laser line, turn the housing in the direction of
the lit half of the light-up ring.
Yellow
(only one corres-
ponding half of the
light-up ring is dis-
played)
Green
The laser line has been successfully levelled in either horizontally or
vertically.
After successfully levelling in the laser line, make sure to let go of the housing carefully
without rotating it again.
1 609 92A 5YH | (09.07.2020)
Bosch Power Tools