DeWalt DWS778 Service Manual Page 8
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6
CROSS-CUT MITRE SAW
DWS778
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product development and innovation make DEWALT one of the most
reliable partners for professional power tool users.
Technical Data
DWS778
QS/GB LX
Voltage V 230 115
(U.K. & Ireland only) V 230 115
Type 1 1
Power input W 1850 1650
Blade diameter mm 250 250
Blade bore mm 30 30
Max. blade speed min
-1
4300 4100
Cutting depth mm 85 85
Max. blade thickness mm 1.75 1.75
Mitre (max. positions) left and right 50° 50°
Bevel (max. positions) left 48° 48°
Compound mitre bevel 45° 45°
mitre 45° 45°
Capacities
cross-cut 90° mm 85 x 305
mitre 45° mm 85 x 215
mitre 48° mm 85 x 204
bevel 45° mm 58 x 305
bevel 48° mm 54 x 305
Overall dimensions mm 465 x 615 x 390
Weight kg 17.2
L
PA
(sound pressure) dB(A) 94.2 94.2
K
PA
(sound pressure uncertainty) dB(A) 3.0 3.0
L
WA
(sound power) dB(A) 107.2 107.2
K
WA
(sound power uncertainty) dB(A) 3.0 3.0
L
P,PEAK
dB(A) 115.6 115.6
K
P,PEAK
dB(A) 3.0 3.0
Vibration total values (triax vector sum) determined according to EN61029:
Vibration emission value a
h
a
h
= m/s² 2.4 2.4
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 61029
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
U.K. & Ireland 115 V tools 16 Amperes, mains
NOTE: This device is intended for the connection to a power supply
system with maximum permissible system impedance Zmax of
0.25 Ohm at the interface point (power service box) of user’s supply.
The user has to ensure that this device is connected only to a power
system which fulfils the requirement above. If necessary, the user can
ask the public power supply company for the system impedance at the
interface point.
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.
Denotes sharp edges.
EC-Declaration of Conformity
MACHINERY DIRECTIVE
DWS778
D
EWALT declares that these products described under Technical Data
are in compliance with: 2006/42/EC, EN 61029-1, EN 61029-2-9.
These products also comply with Directive 2004/108/EC and
2011/65/EU. For more information, please contact DEWALT at the
following address or refer to the back of the manual.
The undersigned is responsible for compilation of the technical file and
makes this declaration on behalf of DEWALT.
Horst Grossmann
Vice President Engineering and Product Development
DEWALT, Richard-Klinger-Straße 11,
D-65510, Idstein, Germany
01.11.2012
Safety Instructions
WARNING! When using electric tools, basic safety
precautions should always be followed to reduce the risk
of fire, electric shock and personal injury including the
following.
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