Inserting/Replacing The Batteries; Initial Operation - Bosch GCL 2-50 Professional Originalbetriebsanleitung

OBJ_BUCH-3119-001.book Page 17 Tuesday, February 28, 2017 4:01 PM
Assembly

Inserting/Replacing the Batteries

Alkali-manganese batteries are recommended for the meas-
uring tool.
Fold open the battery lid 8 and insert the batteries. When in-
serting, pay attention to the correct polarity according to the
representation on the inside of the battery compartment.
If the batteries become weak, the battery capacity indicator 3
will flash green. The laser lines will also flash every 10 mins for
approx. 5 s. The measuring tool can be operated for approx. 1
hour after the first flashing. If the batteries become empty, the
laser lines will flash again directly before automatic shut-off.
Always replace all batteries at the same time. Only use batter-
ies from one brand and with the identical capacity.
 Remove the batteries from the measuring tool when
not using it for extended periods. When storing for ex-
tended periods, the batteries can corrode and self-dis-
charge.
Working with the Rotating Mount RM 1
(see figures A1 – A3)
You can use the rotating mount 14 to rotate the measuring
tool 360° around a central, always visible plumb point. This
enables you to align the laser lines precisely, without having
to change the position of the measuring tool.
Place the measuring tool with the guide groove 9 on the guide
rail 15 of the rotating mount 14 and slide the measuring tool
to the stop onto the platform.
To disconnect, pull the measuring tool in the opposite direc-
tion from the rotating mount.
Positioning possibilities of the rotating mount:
– standing on a flat surface,
– screwed to a vertical surface,
– on metallic surfaces using the magnets 17,
– on metallic ceiling strips using the ceiling clip 18.
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 a long time. In case of large vari-
ations in temperature, allow the measuring tool to adjust to
the ambient temperature before putting it into operation.
In case of extreme temperatures or variations in tempera-
ture, the accuracy of the measuring tool can be impaired.
 Avoid heavy impact or falling of the measuring tool. Af-
ter heavy exterior impact on the measuring tool, an accura-
cy check should always be carried out before continuing to
work (see "Levelling Accuracy").
 Switch the measuring tool off during transport. When
switching off, the levelling unit is locked. Else it can be
damaged in case of intense movement.
Bosch Power Tools
Switching On and Off
To switch on the measuring tool, slide the On/Off switch 2 to
position " " (for working without automatic levelling) or
to position " " (for working with automatic levelling).
As soon as it is switched on, the measuring tool emits laser
lines from the exit openings 1.
 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, slide the On/Off switch 2 to
position " ".
The pendulum unit is locked when the tool is switched off.
 Do not leave the switched-on measuring tool unattend-
ed and switch the measuring tool off after use. Other
persons could be blinded by the laser beam.
When exceeding the maximum permitted operating tempera-
ture of 50 °C, the measuring tool switches off to protect the
laser diode. After cooling down, the measuring tool is ready
for operation and can be switched on again.
Automatic Shut-off
When no button on the measuring tool is pressed for approx.
120 minutes, the measuring tool automatically switches off
to save the batteries.
To switch the measuring tool back on after automatic shut-off,
you can either slide the On/Off switch 2 to position "
first and then switch the measuring tool back on, or press
either button 6 or button 7.
Temporarily Deactivating Automatic Shut-Off
To deactivate automatic shut-off, hold down button 7 for at
least 3 s with the measuring tool switched on. If automatic
shut-off is deactivated, the laser lines will flash briefly as con-
firmation.
Note: If the operating temperature exceeds 45°C, automatic
shut-off can no longer be deactivated.
To activate the automatic shut-off, switch the measuring tool
off and then on again.
Setting the operating mode (see figures B1–F1)
The measuring tool has several operating modes between
which you can switch at any time:
– Cross-line and point operation: The measuring tool gen-
erates a horizontal and a vertical laser line facing front-
ward, a vertical laser point facing upward and a vertical la-
ser point facing downward.
The laser lines cross at a 90° angle.
– Horizontal line operation: The measuring tool generates
a horizontal laser line facing frontward.
– Vertical line operation: The measuring tool generates a
vertical laser line facing frontward.
If the measuring tool is positioned in the room, the vertical
laser line is displayed on the ceiling beyond the upper laser
point.
If the measuring tool is positioned directly against a wall,
the vertical laser line generates an almost completely all-
round laser line (360° line).
English | 17
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1 609 92A 3SJ | (28.2.17)