DeWalt DC415 Instruction Manual page 20

3. While depressing the spindle lock button,thread the clamp nut
(G) on spindle. If the wheel you are installing is more than 1/8"
(3.17 mm) thick, place the threaded clamp nut on the spindle so
that the raised section (pilot) fits into the center of the wheel. If the
wheel you are installing is 1/8" (3.17 mm) thick or less, place the
threaded clamp nut on the spindle so that the raised section (pilot)
is not against the wheel.
1/4" (6.35 mm)
WHEELS
Clamp Nut
Backing Flange
4. While depressing the spindle lock button, tighten the clamp nut
with a wrench.
5. To remove the wheel, depress the spindle lock button and loosen
the threaded clamp nut with a wrench.
NOTE: If the wheel spins after the clamp nut is tightened, check the
orientation of the threaded clamp nut. If a thin wheel is installed with
the pilot on the clamp nut against the wheel, it will spin because the
height of the pilot prevents the clamp nut from holding the wheel.
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.
1/8" (3.17 mm)
EDGE GRINDING WITH GRINDING WHEELS
WHEELS
or kick back if they bend or twist while the tool is being used to do cut-
Clamp Nut
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" in depth). The open side of the guard
must be positioned away from the operator. For deeper cutting with a
Backing Flange
Type 1 cut-off wheel, use a closed Type 1 guard. See pages 14 and
15 for more information.
18
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.
WARNING: Wheels used for cutting and edge grinding may break
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.
20˚-30˚