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ENGLISH
MEDIUM ANGLE GRINDER
DW831/DW840
Congratulations!
You have chosen a DEWALT Power Tool. Years of
experience, thorough product development and
innovation make DEWALT one of the most reliable
partners for professional Power Tool users.
Technical data
DW831 DW840
Voltage V 230 230
(U.K. & Ireland only) V 115 115
Power input W 1,400 1,800
No load speed min-
1
10,000 8,000
Wheel diameter mm 125 180
Max. wheel width mm 6.5 7.0
Spindle M14 M14
Weight kg 3.1 4.0
L
pA
(sound pressure) dB(A) 94
K
pA
(sound pressure uncertainty) dB(A) 3
L
WA
(acoustic power) dB(A) 65
K
WA
(acoustic power uncertainty) dB(A) 3
WARNING: To reduce the risk of hearing
loss, ALWAYS wear appropriate hearing
protection.
Vibration total values (triax vector sum) determined according
to EN 60745:
Weighted RMS acceleration value
(tri axial measurement) m/s
2
6.9
Uncertainty K m/s
2
3
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.
WARNING: The declared vibration
emission level represents 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 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 accessories, keep the hands warm,
organisation of work patterns.
Fuses:
Europe 230 V tools 10 Amperes, mains
U.K. & Ireland 230 V tools 13 Amperes, in plugs
Defi nitions: Safety Guidelines
The definitions below describe the level of severity for
each signal word. Please read the manual and pay
attention to these symbols.
DANGER: Indicates an imminently
hazardous situation which, if not avoided,
will result in death or serious injury.
WARNING: Indicates a potentially
hazardous situation which, if not avoided,
could result in death or serious injury.
CAUTION: Indicates a potentially
hazardous situation which, if not avoided,
may result in minor or moderate
injury.
CAUTION: Used without the safety alert
symbol indicates a potentially hazardous
situation which, if not avoided, may result
in property damage.
Denotes risk of electric shock.
Denotes risk of fire.
EC-Declaration of conformity
DW831
D
EWALT declares that these products described
under “technical data” have been designed in
compliance with:
24


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