Bosch GBH 2-26 DRE - Инструкция по эксплуатации - Страница 18

18

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1 609 92A 220 | (28.4.16)

Bosch Power Tools

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.

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.

Overload 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 loos-
en the tool insert. When switching the machine on with 
the drilling tool jammed, high reaction torques can oc-
cur.

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.

To work with screwdriver bits, a universal bit holder 

30

 with 

SDS-plus shank (accessory) is required.

– Clean the shank end of the adapter shank and apply a light 

coat of grease.

– Insert the universal bit holder with a turning motion into 

the tool holder until it automatically locks.

– Check the locking effect by pulling the universal bit holder.
– Insert a screwdriver bit into the universal bit holder. Use 

only screwdriver bits that match the screw head.

GBH 2-26 E/RE

GBH 2-26 DE/

DRE/DFR

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

OBJ_BUCH-279-008.book  Page 18  Thursday, April 28, 2016  10:57 AM