Bosch GRL4000-90CHVG Instrucciones De Funcionamiento Y Seguridad página 23

Rotational operation
Each time after switching on, the laser level
is in rotational operation mode with standard
rotational speed (600 min–1).
To switch from line operation to rotational op-
eration, press the rotational operation button
(6) or the rotational operation button (27) on
the remote control.
To change the rotational speed,
press the rotational operation
button (6) or the rotational opera-
tion button (27) on the remote
control as many times as needed until the re-
quired speed is indicated on the display.
The set speed can be seen on the rotational
speed indicator (h) on the home screen.
When working with the laser receiver, the
highest rotational speed should be set. When
not working with the laser receiver, reduce
the rotational speed for improved visibility of
the laser beam and use the laser goggles (52).
Line operation/point operation
To switch to line or point operation, press the
line operation button (5) or the line operation
button (29) on the remote control.
To change the aperture angle,
press the line operation button
(5) or the line operation button
(29) on the remote control until
the required operating mode is indicated on
the display. The aperture angle is reduced in
stages each time a button is pressed until
point operation is achieved.
At 360°, the laser level is again in rotational
operation. The rotational speed is set to the
last speed.
Note: Due to inertia, it is possible for the laser
to slightly move beyond the end point of the
laser line.
Functions
Turning the line/point within the
rotational plane
In line and point operation, the laser line or
the laser point can be positioned within the
rotational plane of the laser. Rotation is pos-
sible by 360°.
To rotate counterclockwise, press the but-
(4) on the laser level or the button for
ton
counterclockwise rotation (30) on the remote
control.
GRL4000-90CHVG 10-21.indd 23
To rotate clockwise, press the button
the laser level or the button for clockwise ro-
tation (37) on the remote control.
Turning the rotational plane when
in the vertical position
When the laser level is in the vertical position,
it is possible to rotate the laser point, laser
line or rotational plane around the Y-axis for
easy sighting out or parallel alignment in a
range of ±8.5%.
To start the function, press the
button for setting the slope (14)
on the laser level or the button for
setting the slope (32) on the re-
mote control. The menu for setting the slope
of the Y-axis will appear and the symbol for
the Y-axis will flash.
To rotate the rotational plane, press the ▲ but-
ton (4) or the ▼ button (3) on the laser level
or the up (31) or down (36) slope button on
the remote control until the required position
is reached.
Automatic downwards plumb point function
in the vertical position
To align the laser level against a reference
point on the ground when it is in the verti-
cal position, the variable laser beam (8) can
be turned downwards to be used as a plumb
point. The plumb point function can be start-
ed via remote control or the Bosch Leveling
Remote App.
The variable laser beam plumb point is not
self-leveling. Therefore, ensure that the laser
level is leveled when starting the plumb point
function.
To start the downwards plumb
point function, press the plumb
point function button (26) on the
remote control. The plumb point
function symbol will appear on the display
while the variable laser beam is aligned verti-
cally. After it has been successfully aligned,
the plumb point function indicator (e) will ap-
pear on the start screen.
Note: Possible rotation of the rotational plane
around the Y-axis is not in the form of rotation
around the plumb point.
-23-
(3) on
10/20/21 3:23 PM