Starting Operation - BOS GBH Professional 2-26 E Manual Original

OBJ_BUCH-279-002.book Page 24 Wednesday, November 14, 2007 12:41 PM
24 | English
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
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 re-
lease button 15 and turn the drilling/hammer
drilling selector switch 16 to the desired posi-
tion 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 selec-
tor switch 11.
To change the operating mode, push the release
button 10 and turn the mode selector switch 11
to the requested position until it can be heard to
latch.
Note: Change the operating mode only when the
machine is switched off! Otherwise, the ma-
chine can be damaged.
GBH 2-26 E/RE GBH 2-26 DE/DRE/DFR
Position for hammer
drilling in concrete or
stone
Position for drilling with-
out impact in wood, met-
al, ceramic and plastic as
well as for screwdriving
and thread cutting.
Vario-Lock position for
adjustment of the chisel-
ling position
The mode selector
switch 11 does not latch
in this position.
Position for chiselling
1 619 929 726 | (14.11.07)
Reversing the Rotational Direction
(GBH 2-26 RE/DRE/DFR)
The rotational direction switch 7 is used to re-
verse the rotational direction of the machine.
However, this is not possible with the On/Off
switch 9 actuated.
Right rotation: Turn the selector switch for
drilling/hammer drilling 7 on both sides to
the stop in the position
Left rotation: Turn the selector switch for
drilling/hammer 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.
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 9 is pressed.
Light pressure on the On/Off switch 9 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.
.
.
Bosch Power Tools