Bosch GBH 2 26 DBR - Инструкция по эксплуатации - Страница 17

16

 | English

1 619 929 787 • 4.5.07

Assembly

Auxiliary Handle

¢

Operate your machine only with the auxiliary
handle 11.

Rotating the Auxiliary Handle (see figure A)

The auxiliary handle 

11

 can be set to any position for

a secure and low-fatigue working posture.
Turn the bottom part of the auxiliary handle 

11

 in coun-

terclockwise direction and swivel the auxiliary handle

11

 to the desired position. Then retighten the bottom

part of the auxiliary handle 

11

 by turning in clockwise

direction.
Pay attention that the clamping band of the auxiliary

handle is positioned in the groove on the housing as

intended for.

Adjusting the Drilling Depth (see figure B)

The required drilling depth 

X

 can be set with the

depth stop 

10

.

Press the button for the depth stop adjustment 

9

 and

insert the depth stop into the auxiliary handle 

11

.

The knurled surface of the depth stop 

10

 must face

downward.
Insert the SDS-plus drilling tool to the stop into the

SDS-plus tool holder 

1

. Otherwise, the movability of

the SDS-plus drilling tool can lead to incorrect adjust-

ment of the drilling depth.
Pull out the depth stop until the distance between the

tip of the drill bit and the tip of the depth stop corre-

spond with the desired drilling depth 

X

.

Selecting Drill Chucks and Tools

For hammer drilling and chiselling, SDS-plus tools are

required that are inserted in the SDS-plus drill chuck.
For drilling without impact in wood, metal, ceramic

and plastic as well as for screwdriving and thread cut-

ting, tools without SDS-plus are used (e. g., drills with

cylindrical shank). For these tools, a keyless chuck or

a key type drill chuck are required.

Changing the Key Type Drill Chuck

To work with tools without SDS-plus (e. g., drills with

cylindrical shank), a suitable drill chuck must be mount-

ed (key type drill chuck or keyless chuck, accessories).

Mounting the Key Type Drill Chuck 
(see figure C)

Screw the SDS-plus adapter shank 

14

 into a key type

drill chuck 

13

. Secure the key type drill chuck 

13

 with

the securing screw 

12

. 

Please observe that the

securing screw has a left-hand thread.

Inserting the Key Type Drill Chuck (see figure C)

Clean the shank end of the adapter shank and apply a

light coat of grease.
Insert the key type drill chuck with the adapter shank

into the tool holder with a turning motion until it auto-

matically locks.
Check the locking effect by pulling the key type drill

chuck.

Removing the Key Type Drill Chuck

Push the locking sleeve 

3

 toward the rear and pull out

the key type drill chuck 

13

.

Changing the Tool

The dust protection cap 

2

 largely prevents the entry of

drilling dust into the tool holder during operation.

When inserting the tool, take care that the dust pro-

tection cap 

2

 is not damaged.

¢

A damaged dust protection cap should be
changed immediately. We recommend hav-
ing this carried out by an after-sales service.

Inserting SDS-plus Drilling Tools (see figure D)

The SDS-plus drill chuck allows for simple and con-

venient changing of drilling tools without the use of

additional tools.
Clean and lightly grease the shank end of the tool.
Insert the tool in a twisting manner into the tool holder

until it latches itself.
Check the latching by pulling the tool.
As a requirement of the system, the SDS-plus drilling

tool can move freely. This causes a certain radial run-

out at no-load, which has no effect on the accuracy of

the drill hole, as the drill bit centres itself upon drilling.

Removing SDS-plus Drilling Tools (see figure E)

Push back the locking sleeve 

3

 and remove the tool.

Inserting Drilling Tools without SDS-plus
Note: 

Do not use tools without SDS-plus for hammer

drilling or chiselling! Tools without SDS-plus and their

drill chucks are damaged by hammer drilling or chisel-

ling.
Insert a key type drill chuck 

13

 (see “Changing the

Key Type Drill Chuck”, page 16).
Open the key type drill chuck 

13

 by turning until the

tool can be inserted. Insert the tool.
Insert the chuck key into the corresponding holes of

the key type drill chuck 

13

 and clamp the tool uni-

formly.
Turn the mode selector switch 

8

 to the “drilling” posi-

tion.

Removing Drilling Tools without SDS-plus

Turn the sleeve of the key type drill chuck 

13

 with the

drill chuck key in anticlockwise direction until the drill-

ing tool can be removed.

OBJ_BUCH-370-001.book  Page 16  Friday, May 4, 2007  5:30 PM