DeWalt DWE402 Guide D'utilisation page 16

3. While depressing the spindle lock button, thread the locking
flange (H) on spindle. If the wheel you are installing is more than
1/8" (3.17 mm) thick, place the threaded locking flange 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 locking flange on the spindle so that the
raised section (pilot) is not against the wheel.
4. While depressing the spindle lock button, tighten the locking
flange with a wrench.
5. To remove the wheel, depress the spindle lock button and loosen
the threaded locking flange with a wrench.
NOTE: If the wheel spins after the threaded locking flange is
tightened, check the orientation of the threaded locking flange. If a
thin wheel is installed with the pilot on the locking flange against the
wheel, it will spin because the height of the pilot prevents the locking
flange from holding the wheel.
FIG. 9
OVER 1/8" (3.17 mm)
WHEELS
LOCKING FLANGE
BACKING FLANGE
SURFACE GRINDING WITH GRINDING WHEELS (FIG. 10)
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" OR LESS
(3.17 mm) WHEELS
LOCKING FLANGE
BACKING FLANGE
14
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 (FIG. 11)
CAUTION: Wheels used for edge grinding and cutting may break
or kick back if they bend or twist while the tool is being used. In all
edge grinding/cutting operations, the open side of the guard must be
positioned away from the operator. Edge grinding/cutting with a
Type 27 wheel must be limited to shallow cutting and notching—less
than 1/2" (13 mm) in depth when the wheel is new. Reduce the depth
of cutting/notching equal to the reduction of the wheel radius as it
wears down. Refer to pages 10 and 11 for more information. Edge
grinding/cutting with a Type 1 wheel requires usage of a Type 1 guard.
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
FIG. 10
20˚-30˚
FIG. 11