DeWalt D28114 Guide D'utilisation page 12

MOUNTING NON-HUBBED WHEELS
WARNING: Turn off and unplug the
tool before making any adjustments or
removing or installing attachments or
accessories. Before reconnecting the
tool, turn the switch on and off as
previously described to ensure that the
tool is off.
Depressed center Type 27 grinding wheels
must be used with included flanges.
NOTE: The stamped steel quick-change
backing flange (G2) is for use with D28140,
D28144 and D28144N for Type 27 grinding
wheels only. Refer to page 6–8 for more
information.
1. Install the stamped steel
change backing flange (G2) (D28140,
D28144, D28144N only) for Type 27
6" wheels or the quick-change backing
flange (G1) for all other non-hubbed
wheels on spindle (D) with the raised
section (pilot) against the wheel. Be
sure the backing flange recess is seated
onto the flats of the spindle by pushing
and twisting the flange before placing
wheel.
2. Place wheel against the backing flange,
centering the wheel on the raised
section (pilot) of the backing flange.
3. While depressing the spindle lock but-
ton, thread the clamp nut (H) on spin-
dle. If the wheel you are installing is
more than 1/8" (3.31mm) thick, place
the threaded clamp nut on the spindle so that the raised sec-
tion (pilot) fits into the center of the wheel. If the wheel you are
G1
D
H
1/4" WHEELS
(6.35 mm)
quick-
threaded clamp nut
Quick-Change
backing flange
1/8" WHEELS
(3.17 mm)
threaded clamp nut
Quick-Change
backing flange
11
installing is 1/8" (3.31mm) thick or less, place the threaded
clamp nut on the spindle so that the raised section (pilot) is
not against the wheel.
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.
3. Maintain a 20˚ to 30˚ angle between the
tool and work surface.
4. Continuously move the tool in a for-
ward 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
CAUTION: Wheels used for cutting and edge grinding may break
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" 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. See the chart
20˚-30˚