Starting Operation - Bosch GBH 2-26 DBR Professional Originalbetriebsanleitung

22 | English
– Move the depth stop 18 on the telescopic
pipe 19 in such a manner that the
clearance X shown in the figure corresponds
with the required drilling depth.
– Tighten the clamping screw 17 in this posi-
tion.
Operation

Starting Operation

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 8.
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 7 and turn the mode selector
switch 8 to the requested position until it can
be heard to latch.
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 8 does not
latch in this position.
Position for chiselling
X XXX XXX XXX | (8.9.10)
Reversing the Rotational Direction
The rotational direction switch 4 is used to re-
verse the rotational direction of the machine.
Actuate the rotational direction switch 4
only when the machine is at a standstill.
Right rotation: Turn the rotational direction
switch 4 to the stop in the position
Left rotation: Turn the rotational direction
switch 4 to the stop in the position
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 5.
– To switch off the machine, release the
On/Off switch 5.
Setting the Speed/Impact Rate
The speed/impact rate of the switched on pow-
er tool can be variably adjusted, depending on
how far the On/Off switch 5 is pressed.
Light pressure on the On/Off switch 5 results in
low speed/impact rate. Further pressure on the
switch increases the speed/impact rate.
Safety Clutch
If the tool insert becomes caught or
jammed, the drive to the drill spindle is in-
terrupted. Because of the forces that occur,
always hold the power tool firmly with both
hands and provide for a secure stance.
If the power tool jams, switch the machine
off and loosen the tool insert. When switch-
ing the machine on with the drilling tool
jammed, high reaction torques can occur.
.
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Bosch Power Tools