Bosch GTL3 Instrucciones De Funcionamiento página 10

GTL3 manual-3 2610A11667:Bosch 2/23/11 12:50 PM Page 10
Initial Operation
• Protect the tool against moisture and
direct sun irradiation.
• Do not subject the tool to extreme
temperatures or variations in
temperature.
For an example, do not leave it in a
vehicle for long periods. In case of large
variations in temperature, allow the tool to
adjust to the ambient temperature
before putting it into operation. In case of
extreme temperatures or variations in
temperature, the accuracy of the tool can
be impaired.
• Avoid heavy impact or dropping of the
tool. After heavy exterior impact on the
tool, an accuracy check should always be
carried out before continuing to work (see
"Angular Accuracy").
Switching On and Off
To switch on the tool, press the On/Off
switch 3 once briefly. Immediately after
switching on, the tool projects the three laser
lines 0°, 45°, and 90° from the exit openings
1. Furthermore, the battery indication 8 lights
up for 3 s.
• 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.
When the On/Off button 3 is pressed a
second time, the tool switches over from 3-
line operation to 2-line operation: Only the 0°
and the 90° laser lines are projected.
To switch off the tool, push the On/Off
switch 3.
Operation
Deactivating the Automatic Shut-off
The tool switches off automatically after an
operating duration of 30 minutes.
To deactivate the automatic switch-off, press
the On/Off switch 3 for 3 s when you switch
on the tool. When the automatic switch-off is
deactivated, the laser lines flash briefly to
confirm after the switching on.
• Do not leave the switched on tool
unattended and switch the tool off after
use. Other persons could be blinded by the
laser beam. When switching on the tool the
next time, the automatic switch-off is set to
20 minutes again.
Working Advice
• Always position the tool flat on the floor or
fix it flat on the wall. In case of uneven
positioning or fixing, the angle is smaller
than 45° and 90°.
• Always use the center of the laser line
for marking. The width of the laser line
changes with the distance.
• Never use the laser lines that the tool
standing on the floor projects on the wall
for alignment. The tool is not self-leveling.
Therefore, the line on the wall is distorted.
• The reference point for the alignment of
tiles is the crossing point P of the laser
lines directly in front of the tool. In order to
mark an angle, the tool has to be turned at
this crossing point, see figure F.
• Position the tool only on a clean leveling
plate 10. The cannot stand level on an
uneven, dirty leveling plate surface,
which could lead to faulty
measuring results.
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