2. Depress spindle lock button and use a wrench on the hub of the
wire wheel or brush to tighten the wheel.
3. To remove the wheel, reverse the above procedure.
CAUTION: Failure to properly seat the wheel hub before turning
the tool on may result in damage to tool or wheel.
Mounting Cutting (Type 1) Wheels
Cutting wheels include diamond wheels and abrasive discs.
Abrasive cutting wheels for metal and concrete use are available.
Diamond blades for concrete cutting can also be used.
WARNING: A closed, 2-sided cutting wheel guard (DW4705) is
not included with this tool but is required when using cutting
wheels. Failure to use proper flange and guard can result in injury
resulting from wheel breakage and wheel contact. See page 7 for
more information.
1. Install the unthreaded backing flange (L) on spindle (M) with the
raised section (pilot) against the wheel.
2. Place wheel (N) against the backing flange, centering the wheel
on the raised section (pilot) of the backing flange.
3. While depressing the spindle lock button (C),
thread the clamp nut (O) on spindle. If the
wheel you are installing is more than 1/8"
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 less than 1/8" thick, 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 (P).
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.
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.
Mounting Sanding Backing Pads
CAUTION: Turn off and unplug the tool before making any
adjustments or removing or installing attachments or acces-
sories. Before reconnecting the tool, depress and release the
paddle switch to ensure that the tool is off.
CAUTION: Proper guard must be reinstalled for grinding wheel,
sanding flap disc, wire brush or wire wheel applications after sand-
ing applications are complete.
1. Place or appropriately thread backing pad (Q) on the spindle.
2. Place the sanding disc (R) on the backing pad (N).
C
3. While depressing spindle lock, thread clamp nut (O) on spindle,
piloting the raised hub on the clamp nut into the center of san-
ding disc and backing pad.
M
4. Tighten the clamp nut by hand. Then
L
depress the spindle lock button while turn-
ing the sanding disc and pad until the sand-
N
ing disc and clamp nut are snug.
O
5. To remove the wheel, grasp and turn the
P
backing pad and sanding disc while
depressing the spindle lock button.
8
O
R
Q