Bosch Professional GBH 2-24 DFR Manual Original página 18

18 | English
Functional Description
Read all safety warnings and all
instructions. Failure to follow the
warnings and instructions may re-
sult in electric shock, fire and/or
serious injury.
While reading the operating instructions, unfold
the graphics page for the machine and leave it
open.
Intended Use
The machine is intended for hammer drilling in
concrete, brick and stone, as well as for light
chiselling work. It is also suitable for drilling
without impact in wood, metal, ceramic and
plastic. Machines with electronic control and
right/left rotation are also suitable for screw-
driving and thread cutting.
Product Features
The numbering of the product features refers to
the illustration of the machine on the graphics
page.
1 Quick change keyless chuck
2 SDS-plus quick change chuck
3 SDS-plus tool holder
4 Dust protection cap
5 Locking sleeve
6 Lock ring for rapid-change chuck
7 On/Off switch
8 Lock-on button for On/Off switch
9 Release button for mode selector switch
10 Mode selector switch
11 Button for depth stop adjustment
12 Depth stop
13 Auxiliary handle
14 Rotational direction switch
15 Drill chuck mounting
16 Front sleeve of the quick change keyless
chuck
17 Retaining ring of the quick change keyless
chuck
18 Extraction sleeve of the dust extraction
attachment*
1 619 929 739 | (2.8.07)
19 Clamping screw for the dust extraction
attachment*
20 Depth stop of the dust extraction
attachment*
21 Telescopic pipe of the dust extraction
attachment*
22 Wing bolt of the dust extraction attachment*
23 Guide pipe of the dust extraction
attachment*
24 Universal bit holder with SDS-plus shank*
*The accessories illustrated or described are not in-
cluded as standard delivery.
Noise/Vibration Information
Measured values determined according to
EN 60745.
Typically the A-weighted noise levels of the prod-
uct are: Sound pressure level 88 dB(A); Sound
power level 99 dB(A). Uncertainty K =3 dB.
Wear hearing protection!
Vibration total values (triax vector sum) deter-
mined according to EN 60745:
Hammer drilling into concrete: Vibration emis-
sion value a =15 m/s
h
Chiselling: Vibration emission value a
Uncertainty K=1.5 m/s
The vibration emission level given in this informa-
tion sheet has been measured in accordance with
a standardised test given in EN 60745 and may be
used to compare one tool with another. It may be
used for a preliminary assessment of exposure.
The declared vibration emission level represents
the main applications of the tool. However if the
tool is used for different applications, with differ-
ent accessories or poorly maintained, the vibra-
tion emission may differ. This may significantly in-
crease 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 total
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.
2
, Uncertainty K=1.5 m/s
=10 m/s
h
2
.
Bosch Power Tools
2
,
2
,