Bosch GRL4000-90CHVG Instrucciones De Funcionamiento Y Seguridad página 20

on the corresponding menu, the symbols
show the usable function buttons (e.g. the
rotational operation button in the rotational
operation menu (6)) or additional functions
such as Next ( ), Back ( ) or Confirm ( ).
– The softkey symbols (i) also make it easy to
recognize whether the Slope button down/
Button for clockwise rotation (3) and Slope
button up/Button for counterclockwise ro-
tation (4) buttons in the current menu are
used to slope downwards (▼) or slope up-
wards (▲) or to turn in a clockwise ( ) or
counterclockwise ( ) direction.
– The function menus or status messages can
be exited at any time by briefly pressing the
on/off button (11). This will save the last
setting of the function menu.
– The display will automatically go back to
the start screen five seconds after the last
press of a button.
– The display (15) will light up with every
press of a button or signal that reaches the
laser level. The light will go out approxi-
mately one minute after the last press of a
button.
Tilting or rotation in various functions can be
accelerated if the respective tilting or rotation
buttons on the laser level or the remote con-
trol are held down for longer.
All functions are reset to their standard set-
ting when the laser level is switched off.
Switching On and Off
Note: After the first time the tool is started up
and before beginning work, you should always
perform an accuracy check (see "Accuracy
Check of the Laser level", page 27).
To switch on the laser level, press the on/
off button (11). The start sequence will ap-
pear for a few seconds, followed by the home
screen. The laser level emits the variable laser
beam (8) and the plumb point up (10) from
the outlet apertures (9).
Do not direct the laser
beam at persons or ani-
mals and do not look into the laser beam
yourself, not even from a large distance.
Leveling starts automatically and
is shown by the flashing symbol
for leveling on the display, the
flashing laser beams and the
flashing status indicator (12) that is flashing
green (see "Automatic leveling", page 24).
GRL4000-90CHVG 10-21.indd 20
After leveling has successfully
been completed, the start screen
will appear, the laser beams will
light up continuously, rotation will
start and the status display will light up green
continuously.
switched on, and ensure the laser level is
switched off after use. Others may be blind-
ed by the laser beam.
To switch off the laser level, press
and hold the on/off button (11) un-
til the switch-off symbol appears
on the display.
If the maximum permitted operat-
ing temperature of 122 °F is ex-
ceeded, a warning message will
appear for a few seconds and the
status indicator (12) will flash red.
The laser level will then shut down in order
to protect the laser diode. Once it has cooled
down, the laser level is operational again and
can be switched back on.
Establishing a connection to the remote
control/laser receiver
In the default factory setting, the laser level,
the remote control (41) and the laser receiver
(42) which come with the set are already con-
nected via Bluetooth®.
indicator for establishing a connection with
the remote control/laser receiver appears on
the display.
To establish a connection to the remote con-
trol, press the button for counterclockwise
rotation (30) and the button for clockwise
rotation (37) on the remote control, until the
status indicators (34) and (35) begin to flash.
While the connection to the remote control
is being established, the status indicators on
the remote control will alternately flash green.
To establish a connection to the laser receiver,
press on the X-axis and Y-axis buttons on the
laser receiver at the same time until the mes-
sage that a connection has been established
appears on the display of the laser receiver.
To do this, consult the operating instructions
for the laser receiver.
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Never leave the laser level
unattended when
To connect the remote con-
trol or the laser receiver,
press and hold the Blue-
tooth® button (7) until the
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