Power Supply; Initial Operation - Bosch GCL Professional 2-50 C Originalbetriebsanleitung

22 | English
Assembly

Power Supply

The measuring tool can either be operated with commercially
available batteries or with a Bosch lithium-ion battery pack.
Operation with Battery Pack
Note: Use of battery packs not suitable for the measuring tool
can lead to malfunctions of or cause damage to the measuring
tool.
Note: The battery pack is supplied partially charged. To en-
sure full capacity of the battery pack, completely charge the
battery pack in the battery charger before using for the first
time.
 Use only the chargers listed in the technical data. Only
these battery chargers are matched to the lithium-ion bat-
tery of your measuring tool.
The lithium-ion battery pack can be charged at any time with-
out reducing its service life. Interrupting the charging proce-
dure does not damage the battery pack.
The "Electronic Cell Protection (ECP)" protects the lithium-
ion battery pack against deep discharging. When the battery
pack is discharged, the measuring tool is switched off by a
protective circuit.
 Do not switch the measuring tool back on after it has
been switched off by the protective circuit. The battery
pack can be damaged.
To insert the charged battery pack 9, slide it into the battery
port until you feel it engage.
To remove the battery pack 9, press the unlocking buttons
12 and pull the battery pack out of the battery port. Do not
exert any force.
Operation with Batteries
The batteries are inserted into the battery adapter.
 The non-rechargeable battery adapter is intended only
for use in designated Bosch measuring tools and must
not be used with power tools.
To insert the batteries, slide the cover 10 of the battery
adapter into the battery port. Place the batteries in the cover
as shown in the illustration on the sealing cap 13. Slide the
sealing cap over the cover until you feel it click into place.
To remove the batteries, press the unlocking but-
tons 12 of the sealing cap 13 and pull off the seal-
ing cap. Take care that the batteries do not fall out.
To do so, hold the measuring tool with the battery
port facing upward. Remove the batteries. To re-
move the inside cover 10 from the battery port,
reach into the cover and pull it out of the measuring
tool by applying light pressure to the side wall.
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.
1 609 92A 2U5 | (27.2.17)
Battery Status Indicator
The battery status indicator 4 shows the charge condition of
the battery pack or batteries:
LED
Continuous lighting, green
Continuous lighting, yellow
Flashing light, red
No light
Immediately replace a fault battery pack or empty batteries.
Working with the Rotating Mount RM 2
(see figures A1 – A3)
You can use the rotating mount 22 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.
You can use the fine adjustment knob 23 to align vertical laser
lines precisely with reference points.
Place the measuring tool with the guide groove 17 on the
guide rail 19 of the rotating mount 22 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 20,
– on metallic ceiling strips using the ceiling clip 24.
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.
Switching On and Off
To switch on the measuring tool, slide the On/Off switch 18 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.
Charge Condition
100–75 %
75–35 %
<35 %
– Battery pack defective
– Batteries empty
Bosch Power Tools