English | 17
Bosch Power Tools 1 609 929 T81 | (6.8.09)
Operation
Initial Operation
f Protect the measuring tool against moisture and direct
sun light.
f Do not subject the measuring tool to extreme tempera-
tures or variations in temperature. As an example, do not
leave it in vehicles for longer periods. In case of large varia-
tions in temperature, allow the measuring tool to adjust to
the ambient temperature before putting it into operation.
f Avoid heavy impact to or falling down of the measuring
tool. Damage to the measuring tool can impair its accuracy.
After heavy impact or falling down, check the angle accura-
cy between the 0° and 90° laser line with the angle of a pre-
cision square.
Switching On and Off
To switch on the measuring tool, briefly press the On/Off
switch 1. Immediately after switching on, the measuring tool
sends out the two laser lines at 0° and 90°.
f Do not point the laser beam at persons or animals and do
not look into the laser beam yourself, not even from a
large distance.
To switch off the measuring tool, push the On/Off switch 1
again.
f Do not leave the switched on measuring tool unattended
and switch the measuring tool off after use. Other persons
could be blinded by the laser beam.
Working Advice
f Always place the measuring tool level on the floor or fas-
ten it plane against the wall. When placing down or fasten-
ing unevenly, the angle will not be precisely 90°.
f When laying floor tiles, do not use spirit levels 3 and 5 for
levelling of the measuring tool. Spirit levels 3 and 5 are
used only for alignment against walls. When laying floor
tiles, the bubbles of the spirit levels can be within the
marks, without the measuring tool being level.
f Always use the centre of the laser line for marking. The
width of the laser line changes with the distance.
f Never use the laser lines that the measuring tool standing
on the floor projects on the wall for alignment. The meas-
uring tool is not self-levelling. Therefore, the line on the wall
is distorted.
OBJ_BUCH-965-004.book Page 17 Thursday, August 6, 2009 2:38 PM
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