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23
Bosch Power Tools
1 609 929 V31 | (20/10/10)
Operation
Starting Operation
f
Observe correct mains voltage! The voltage
of the power source must agree with the
voltage specified on the nameplate of the
machine. Power tools marked with 230 V
can also be operated with 220 V.
Setting the Operating Mode
The operating mode of the power tool is select-
ed with the mode selector switch
7
.
Note:
Change the operating mode only when the
machine is switched off! Otherwise, the ma-
chine can be damaged.
– To change the operating mode, push the re-
lease button
6
and turn the mode selector
switch
7
to the requested position until it can
be heard to latch.
Reversing the Rotational Direction
(GBH 2-24 DSR)
The rotational direction switch
11
is used to re-
verse the rotational direction of the machine.
However, this is not possible with the On/Off
switch
4
actuated.
Right rotation:
Push the rotation-
al direction switch
11
rightward
to the stop.
Left rotation:
Push the rotational
direction switch
11
leftward to
the stop.
Set the direction of rotation for hammer drilling,
drilling and chiselling always to right rotation.
Switching On and Off
– To
start
the machine, press the On/Off
switch
4
.
– To
lock
the On/Off switch, keep it pressed
and additionally push the lock-on button
5
.
GBH 2-24 DSR: In left rotation, the On/Off
switch cannot be locked.
– To
switch off
the machine, release the
On/Off switch
4
. When the On/Off switch
4
is locked, press it first and then release it.
Setting the Speed/Impact Rate
(GBH 2-24 DSE/GBH 2-24 DSR)
The speed/impact rate of the switched on pow-
er tool can be variably adjusted, depending on
how far the On/Off switch
4
is pressed.
Light pressure on the On/Off switch
4
results in
low speed/impact rate. Further pressure on the
switch increases the speed/impact rate.
Position for
hammer drilling
in con-
crete or stone
Position for
drilling
without impact
in wood, metal, ceramic and plastic
as well as for screwdriving
Vario-Lock
position for adjustment
of the chiselling position
The mode selector switch
7
does
not latch in this position.
Position for
chiselling