Bosch 2-26 DE Original Instructions Manual - Page 10
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18 | English
– Position the the guide pipe 29 of the dust extraction at-
tachment in its holding fixture in such a manner that the
head of the dust extraction attachment faces against the
surface to be drilled. Do not slide the guide pipe 29 further
over the telescopic pipe 27 of the dust extraction attach-
ment than required, so that as much as possible of the
scale 27 on the telescopic pipe remains visible.
– Retighten the wing bolt 28 again. Loosen the clamping screw
25 on the depth stop of the dust extraction attachment.
– Move the depth stop 26 on the telescopic pipe 27 in such
a manner that the clearance X shown in the figure corre-
sponds with the required drilling depth.
– Tighten the clamping screw 25 in this position.
Operation
Starting Operation
Observe correct mains voltage! The voltage of the pow-
er 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
GBH 2-26 E/RE:
With the selector switch for drilling/hammer drilling 16, the
operating mode of the machine is selected.
– To change the operating mode, press the release button
15 and turn the drilling/hammer drilling selector switch 16
to the desired position until it can be heard to latch.
GBH 2-26 DE/DRE/DFR:
The operating mode of the power tool is selected with the
mode selector switch 11.
– To change the operating mode, push the release button 10
and turn the mode selector switch 11 to the requested po-
sition until it can be heard to latch.
Note: Change the operating mode only when the machine is
switched off! Otherwise, the machine can be damaged.
GBH 2-26 E/RE
Position for hammer drilling in
concrete or stone
Position for drilling without im-
pact in wood, metal, ceramic
and plastic as well as for screw-
driving
Vario-Lock position for adjust-
ment of the chiselling position
The mode selector switch 11
does not latch in this position.
Position for chiselling
1 609 92A 03Z | (2.12.13)
Reversing the rotational direction
(GBH 2-26 RE/DRE/DFR)
The rotational direction switch 7 is used to reverse the rota-
tional direction of the machine. However, this is not possible
with the On/Off switch 9 actuated.
Right rotation: Turn the selector switch for drilling/ham-
mer drilling 7 on both sides to the stop in the position
Left rotation: Turn the selector switch for drilling/ham-
mer drilling 7 on both sides 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 9.
– To lock the On/Off switch, keep it pressed and additionally
push the lock-on button 8.
– To switch off the machine, release the On/Off switch 9.
When the On/Off switch 9 is locked, press it first and then
release it.
To save energy, only switch the power tool on when using it.
Setting the Speed/Impact Rate
The speed/impact rate of the switched on power tool can be
variably adjusted, depending on how far the On/Off switch 9
is pressed.
Light pressure on the On/Off switch 9 results in low speed/im-
pact 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 interrupted. 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
GBH 2-26 DE/
the tool insert. When switching the machine on with the
DRE/DFR
drilling tool jammed, high reaction torques can occur.
Working Advice
Before any work on the machine itself, pull the mains
plug.
Changing the Chiselling Position (Vario-Lock)
(GBH 2-26 DE/DRE/DFR)
The chisel can be locked in 36 positions. In this manner, the
optimum working position can be set for each application.
– Insert the chisel into the tool holder.
– Turn the mode selector switch 11 to the "Vario-Lock" posi-
tion (see "Setting the operating mode", page 18).
– Turn the tool holder to the desired chiselling position.
– Turn the mode selector switch 11 to the "chiselling" posi-
tion. The tool holder is now locked.
– For chiselling, set the rotation direction to right rotation.
Inserting Screwdriver Bits (see figure L)
Apply the power tool to the screw/nut only when it is
switched off. Rotating tool inserts can slip off.
.
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Bosch Power Tools