DeWalt DCG412 Mode D'emploi page 59

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 1/2" [13 mm] 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.
Using Cutting (Type 1) Wheels
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 injury may result.
1. Allow tool to reach full speed before touching
tool to work surface.
2. Apply minimum pressure to work surface,
allowing tool to operate at high speed. Cutting
rate is greatest when the tool operates at high
speed.
3. 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.
4. Remove the tool from work surface before
turning tool off. Allow the tool to stop rotating
before setting it down.
Precautions To Take When Wire
Brushing Paint
1. Wire brushing of lead based paint is NOT
RECOMMENDED due to the difficulty of
controlling the contaminated dust. The greatest
danger of lead poisoning is to children and
pregnant women.
ENGLISH
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