DeWalt DW831, Original Instructions Manual

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28
E N G L I S H
MEDIUM ANGLE GRINDER
DW831/DW840
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E
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E
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Technical Data
DW831 DW840
Voltage V 230 230
(U.K. & Ireland only) V 115 115
Type 4 3
Power input W 1,400 1,800
Rated speed min
-1
10,000 8,000
Wheel diameter mm 125 180
Max. wheel width mm 6.5 7.0
Spindle diameter M14 M14
Weight kg 3.1 4.0
L
PA
(sound pressure) dB(A) 94 94
K
PA
(sound
pressure uncertainty) dB(A) 3 3
L
WA
(sound power) dB(A) 65 65
K
WA
(sound power
uncertainty) dB(A) 3 3
Vibration total values (triax vector sum) determined according
to EN 60745:
Vibration emission value a
h
surface grinding
a
h,AG
= m/s² 12.8 11.9
Uncertainty K = m/s² 1.8 1.7
Vibration emission value a
h
disc sanding
a
h,DS
= m/s² 2.7 ≤ 2.5
Uncertainty K = m/s² 1.5 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.
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 .
NOTICE: Indicates a practice not
related to personal injury which, if
not avoided, may result in property
damage .
Denotes risk of electric shock.
Denotes risk of fire.