DeWalt D28065 Instruction Manual page 16

NOTE: The 3" (76 mm) diameter stamped
steel backing flange (G2) is ONLY for use with
6" (152 mm) Type 27 grinding wheels. Refer to
pages 9–11 for more information.
1. Install the 3" (76 mm) diameter stamped
steel backing flange (G2) for 6" (152 mm)
Type 27 wheels or the 1-11/16" (43 mm)
diameter quick-change backing flange
(G1) for all other non-hubbed wheels on
spindle (O) 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 button, thread the clamp
nut (H) 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.
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.
FIG. 8
G1, G2
O
SURFACE GRINDING WITH GRINDING WHEELS (FIG. 10)
H
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 (FIG. 11)
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" (12.7 mm) in depth]. The open side of the guard must
be positioned away from the operator. For deeper cutting with a
14
FIG. 9
Wheels 1/8" (3.17 mm)
Wheels thicker than
and thinner
1/8" (3.17 mm)
threaded clamp nut
threaded clamp nut
Quick-Change
Quick-Change
backing flange backing flange
FIG. 10
20˚-30˚