DeWalt DWE4212 - Sécurité Individuelle; Utilisation Et Entretien des Outils Électriques

ENGLISH
12
is turned off, unplugged from the power supply, and
has come to a completestop.
NOTICE: To reduce the risk of damage
to the tool, do not engage the spindle
lock while the tool is operating. Damage
to the tool will result and attached
accessory may spin off possibly
resulting ininjury.
To engage the lock, depress the spindle lock button
and rotate the spindle until you are unable to rotate
the spindlefurther.
Using Depressed Centre Grinding
Wheels
SURFACE GRINDING WITH GRINDING WHEELS
1. Allow the tool to reach full speed before
touching the tool to the worksurface.
2. Apply minimum pressure to the work surface,
allowing the tool to operate at high speed.
Grinding rate is greatest when the tool operates
at highspeed.
3. Maintain a 20° to 30° angle between the tool
and worksurface.
4. Continuously move the tool in a forward and
back motion to avoid creating gouges in the
worksurface.
5. Remove the tool from work surface before
turning tool off. Allow the tool to stop rotating
before laying itdown.
EDGE GRINDING WITH GRINDING WHEELS
WARNING: Wheels used for cutting
and edge grinding may break or
kickback if they bend or twist while the
tool is being used to do cut-off work
or deep grinding. To reduce the risk
of serious injury, limit the use of these
wheels with a standard Type 27 guard
to shallow cutting and notching (less
than 13 mm [1/2”] in depth). The open
side of the guard must be positioned
away from the operator. For deeper
cutting with a Type 1 cut-off wheel, use
a closed Type 1 guard. Please refer to
the Grinding and Cutting Accessory
Chart at the end of this section to see
other accessories that can be used with
thesegrinders.
1. Allow the tool to reach full speed before
touching the tool to the worksurface.
2. Apply minimum pressure to the work surface,
allowing the tool to operate at high speed.
Grinding rate is greatest when the tool operates
at highspeed.
3. Position yourself so that the open-underside of
the wheel is facing away fromyou.
4. Once a cut is begun and a notch is established
in the workpiece, do not change the angle of
the cut. Changing the angle will cause the wheel
to bend and may cause wheel breakage. Edge
grinding wheels are not designed to withstand
side pressures caused bybending.
5. Remove the tool from the work surface before
turning the tool off. Allow the tool to stop
rotating before laying itdown.
WARNING: Do not use edge grinding/
cutting wheels for surface grinding
applications because these wheels
are not designed for side pressures
encountered with surface grinding.
Wheel breakage and serious personal
injury mayresult.
Mounting and Using Wire Brushes
and Wire Wheels
Wire wheels and brushes can be used for
removing rust, scale and paint, and for smoothing
irregularsurfaces.
NOTE: Please refer to Precautions To Take When
Wire BrushingPaint.
1. Allow the tool to reach full speed before
touching the tool to the worksurface.
2. Apply minimum pressure to work surface,
allowing the tool to operate at high speed.
Material removal rate is greatest when the tool
operates at highspeed.
3. Maintain a 5° to 10° angle between the tool and
work surface for wire cupbrushes.
4. Maintain contact between the edge of the wheel
and the work surface with wirewheels.
5. Continuously move the tool in a forward and
back motion to avoid creating gouges in the
work surface. Allowing the tool to rest on the
work surface without moving, or moving the tool
in a circular motion causes burning and swirling
marks on the worksurface.
6. Remove the tool from the work surface before
turning the tool off. Allow the tool to stop
rotating before setting itdown.
CAUTION: Use extra care when
working over an edge, as a sudden
sharp movement of grinder may
beexperienced.