Bosch GBH Professional 2-24 DS Manual Original página 20

20 | English
The declared vibration emission level repre-
sents the main applications of the tool. However
if the tool is used for different applications, with
different accessories or poorly maintained, the
vibration emission may differ. This may signifi-
cantly increase the exposure level over the total
working period.
An estimation of the level of exposure to vibra-
tion should also take into account the times
when the tool is switched off or when it is run-
ning but not actually doing the job. This may sig-
nificantly reduce the exposure level over the to-
tal working period.
Identify additional safety measures to protect
the operator from the effects of vibration such
as: maintain the tool and the accessories, keep
the hands warm, organisation of work patterns.
Declaration of Conformity
We declare under our sole responsibility that
the product described under "Technical Data" is
in conformity with the following standards or
standardization documents: EN 60745 accord-
ing to the provisions of the directives
2004/108/EC, 2006/42/EC.
Technical file at:
Robert Bosch GmbH, PT/ESC,
D-70745 Leinfelden-Echterdingen
Dr. Egbert Schneider
Senior Vice President
Engineering
Robert Bosch GmbH, Power Tools Division
D-70745 Leinfelden-Echterdingen
Leinfelden, 21.05.2010
1 609 929 V31 | (20/10/10)
Dr. Eckerhard Strötgen
Head of Product
Certification
Assembly
Auxiliary Handle
Operate your machine only with the auxilia-
ry handle 10.
Changing the position of the auxiliary handle
(see figure A)
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 posi-
tion. Then retighten the bottom part of the
auxiliary handle 10 by turning in clockwise di-
rection.
Adjusting the Drilling Depth (see figure B)
The required drilling depth X can be set with the
depth stop 9.
– Press the button for the depth stop adjust-
ment 8 and insert the depth stop into the
auxiliary handle 10.
The knurled surface of the depth stop 9 must
face upward.
– 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 adjustment of the drill-
ing 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 drill-
ing 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, ce-
ramic and plastic as well as for screwdriving,
tools without SDS-plus are used (e.g., drills
with cylindrical shank). For these tools, a key-
less chuck or a key type drill chuck are required.
Bosch Power Tools