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OBJ_BUCH-965-004.book Page 17 Thursday, August 6, 2009 2:38 PM
Operation
Initial Operation
Protect the measuring tool against moisture and direct
sun light.
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.
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°.
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.
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
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°.
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.
Always use the centre of the laser line for marking. The
width of the laser line changes with the distance.
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.
Bosch Power Tools
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1 609 929 T81 | (6.8.09)
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