
20 | English
1 609 92A 264 | (7.12.15) Bosch Power Tools
– Press the latch 18 of the battery lid outward and open the
battery lid 28.
When inserting the battery, pay attention to the correct polar-
ityaccording totherepresentationontheinsideof thebattery
compartment.
When the battery low indicator bappears for the first time on
the display 25, the laser receiver can still be operated for ap-
prox. 3 h.
Remove the battery from the laser receiver when not
using it for longer periods. When storing for longer peri-
ods, the battery can corrode and self-discharge.
Operation
Starting Operation of the Rotational Laser Level
Protectthemeasuring toolagainst moisture anddirect
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-
ationsintemperature,allow themeasuringtooltoadjustto
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.
Avoidheavy impacttoordroppingdown of the measur-
ing tool. After severe exterior effects to the measuring
tool, it is recommended to carry out an accuracy check
(see “Levelling Accuracy of the Rotational Laser Level”,
page 22) each time before continuing to work.
Switch the measuring tool off before transporting it.
This will save energy and prevent laser beams from being
emitted accidentally.
Setting Up the Measuring Tool
Position the measuring tool on a firm sur-
face or mount it to a tripod 30.
Due to the high levelling accuracy, the
measuring tool reacts sensitively to ground
vibrationsandpositionchanges.Therefore,
pay attention that the position of the meas-
uring tool is stable in order to avoid opera-
tional interruptions due to re-levelling.
Switching On and Off
Do not direct the laser beam at persons or animals (es-
peciallynotattheireyelevel),and do not stareinto the
laser beam yourself (not even from a distance.) Imme-
diatelyafterswitchingon,themeasuringtoolsendsout the
variable laser beam 4.
–Forswitching on the measuring tool, briefly press the
On/Off button 2. The indicators 3, 1and 6light up briefly.
The measuring tool immediately starts the automatic level-
ling. During the levelling, the levelling indicator1flashes
green, the laser does not rotate and flashes.
The measuring tool is levelled in as soon as levelling indicator
1lights up green continuously and the laser beam is steady.
After the levellingis completed, the measuring tool automati-
cally starts in rotational operation.
The measuring tool exclusively operates with fixed rotational
speed in rotational operation, which is also suitable for use of
a laser receiver.
When factory set, theshock-warningfunctionisautomatically
switched on, and the shock-warning indicator 3lights up
green.
–Toswitch off the measuring tool, briefly press the On/Off
button 2. When the shock warning has actuated (shock-
warning indicator 3flashes red), briefly press the On/Off
button once to restart the shock-warning function, and
then again to switch off the measuring tool.
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.
To save the batteries, the measuring toolis automatically
switched off when not within the self-levelling range for more
than 2 h or when the shock warning is actuated for more than
2 h (see “Automatic Levelling of the Rotational Laser Level”,
page 21). Reposition the measuring tool and switch it on
again.
Starting Operation of the Laser Receiver
Protect the laser receiver against moisture and direct
sun light.
Do not subject the laser receiver to extreme tempera-
tures or variations in temperature. As an example, do
not leave it in vehicles for longer periods. In case of large
variationsintemperature,allowthelaserreceiverto adjust
to the ambient temperature before putting it into opera-
tion. In case of extreme temperatures or variations in tem-
perature, the accuracy of the laser receiver can be im-
paired.
– Position the laser receiver at least 50 cm away from the ro-
tational laser level. Position the laser receiver in such a
manner that the laser beam can reach the reception area
24.
Tosaveenergy,only switchthe laserreceiveronwhen you are
using it.
Switching On and Off
A loud audio signal sounds when switching on the laser
receiver. “The A-weighted sound pressure level of the au-
dio signal is up to 95 dB(A) at a distance of 0.2 m.”
Do not hold the laser receiver close to your ear! The
loud audio signal can cause hearing defects.
–Toswitch on the laser receiver, press the On/Off button
19.Two audio signals soundand alldisplay indicators light
up briefly.
–Toswitch off the laser receiver, press the On/Off button
19 again.
When no button is pressed on the laser receiver for approx.
10 minutes and whenno laserbeamreaches thereception ar-
ea24 for 10 minutes, the laser receiver automatically switch-
es off in order to save the battery. The switching off is indicat-
ed by an audio signal.
OBJ_BUCH-1179-004.book Page 20 Monday, December 7, 2015 5:49 PM