Bosch GBH 3-28 DFR Spécifications Page 16

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16 | English
1 609 929 Y58 | (23.3.11) Bosch Power Tools
Noise/Vibration Information
Declaration of Conformity
We declare under our sole responsibility that the product de-
scribed under “Technical Data” is in conformity with the fol-
lowing standards or standardization documents: EN 60745
according to the provisions of the directives 2004/108/EC,
2006/42/EC.
Technical file at:
Robert Bosch GmbH, PT/ESC,
D-70745 Leinfelden-Echterdingen
Robert Bosch GmbH, Power Tools Division
D-70745 Leinfelden-Echterdingen
Leinfelden, 22.07.2010
Permissible drilling diameter, max.:
(also see page 17)
Concrete*
Brickwork (with core bit)
–Steel
Wood
mm
mm
mm
mm
28
82
13
30
28
82
13
30
Weight according to EPTA-Procedure 01/2003
kg 3.5 3.6
Protection class
/II /II
Rotary Hammer GBH 3-28 DRE
Professional
GBH 3-28 DFR
Professional
* not suitable with core bit
The values given are valid for a nominal voltage [U] of 230 V. For different voltages and models for specific countries, these values can vary.
Please observe the article number on the type plate of your machine. The trade names of the individual machines may vary.
GBH 3-28 DRE
Professional
GBH 3-28 DFR
Professional
Measured sound values determined according to EN 60745.
Typically the A-weighted noise levels of the product are
Sound pressure level
Sound power level
Uncertainty K=
Wear hearing protection!
dB(A)
dB(A)
dB
91
102
3
91
102
3
Vibration total values (triax vector sum) determined according to
EN 60745:
Hammer drilling into concrete:
Vibrational emission value a
h
Uncertainty K
Chiselling:
Vibrational emission value a
h
Uncertainty K
Drilling in metal:
Vibrational emission value a
h
Uncertainty K
Screwdriving without impact:
Vibrational emission value a
h
Uncertainty K
m/s
2
m/s
2
m/s
2
m/s
2
m/s
2
m/s
2
m/s
2
m/s
2
13
1.5
11
1.5
<2.5
1.5
<2.5
1.5
12
1.5
11
1.5
<2.5
1.5
<2.5
1.5
The vibration emission level given in this information 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 ap-
plications, with different accessories or poorly maintained, the vibration emission may differ. This may significantly increase
the exposure level over the total working period.
An estimation of the level of exposure to vibration should also take into account the times when the tool is switched off or when
it is running but not actually doing the job. This may significantly 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 ac-
cessories, keep the hands warm, organisation of work patterns.
Dr. Egbert Schneider
Senior Vice President
Engineering
Dr. Eckerhard Strötgen
Head of Product
Certification
OBJ_BUCH-770-005.book Page 16 Wednesday, March 23, 2011 2:38 PM
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