Bosch GBH 4 32 DFR S - Инструкция по эксплуатации - Страница 20

20

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Bosch Power Tools

Robert Bosch GmbH, Power Tools Division

D-70745 Leinfelden-Echterdingen

16.12.2008

Assembly

f

Before any work on the machine itself, pull 
the mains plug.

Auxiliary Handle

f

Operate your machine only with the auxilia-
ry handle 10.

The auxiliary handle 

10

 can be set to any posi-

tion for a secure and low-fatigue working pos-
ture.
Turn the bottom part of the auxiliary handle 

10

in counterclockwise direction and swivel the 
auxiliary handle 

10

 to the desired position. Then 

retighten the bottom part of the auxiliary handle 

10

 by turning in clockwise direction.

Adjusting the Drilling Depth (see figure A)

The required drilling depth 

X

 can be set with the 

depth stop 

11

.

Press the button for the depth stop adjustment 

9

 and insert the depth stop into the auxiliary 

handle 

10

.

Insert the SDS-plus drilling tool to the stop into 
the SDS-plus tool holder 

1

. Otherwise, the mov-

ability of the SDS-plus drilling tool can lead to 
incorrect adjustment of the drilling depth.
Pull out the depth stop until the distance be-
tween the tip of the drill bit and the tip of the 
depth stop correspond with the desired drilling 
depth 

X

.

The knurled surface of the depth stop 

11

 must 

face downward.

Selecting the Tool Holder

For hammer drilling, SDS-plus drilling tools that 
can be inserted into the SDS-plus tool holder 

1

are required.
For drilling without impact in wood, metal, ce-
ramic and plastic as well as for screwdriving and 
tapping, use non-SDS-plus drilling tools (e. g., 
drill bits with cylindrical shank). A keyless drill 
chuck is required for such drilling tools.

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 chiselling.
The SDS-plus tool holder 

1

 can easily be ex-

changed against the quick change keyless chuck 

12

.

Changing the Tool Holder

Dismounting the SDS-plus Tool Holder or the 
Quick change keyless chuck (see figure B)

Pull the lock ring of the tool holder 

4

 firmly in 

the direction of the arrow, hold it in this position 
and pull off the tool holder 

1

 or the keyless re-

placement chuck 

12

 toward the front.

After removing, protect the tool holder 

1

 or the 

quick change keyless chuck 

12

 against contami-

nation. Lightly lubricate the engaging grooves, if 
required.

Mounting the SDS-plus Tool Holder or the 
Quick change keyless chuck

Grasp the tool holder 

1

 or the keyless replace-

ment chuck 

12

 completely with your hand. Slide 

the tool holder 

1

 or the keyless replacement 

chuck 

12

 with a turning motion onto the drill 

chuck mounting until a distinct latching noice is 
heard.
The tool holder 

1

 or the quick change keyless 

chuck 

12

 is automatically locked. Check the 

locking effect by pulling the tool holder.

Dr. Egbert Schneider
Senior Vice President
Engineering

Dr. Eckerhard Strötgen
Head of Product
Certification

OBJ_BUCH-337-002.book  Page 20  Monday, March 2, 2009  4:19 PM