DeWalt D28065-XE Instruction Manual page 14

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 12.7 mm (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 on page 7 and 8 for more information. Type
1 guards are available at extra cost from your local
dealer or authorized service center.
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.
5. Remove the tool from the work surface before turning the tool off. Allow the tool
to stop rotating before laying it down.
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.
SURFACE FINISHING WITH SANDING FLAP DISCS
1. Allow the tool to reach full speed before touching the tool to the work surface.
2. Apply minimum pressure to work surface, allowing the tool to operate at high
speed. Sanding rate is greatest when the tool operates at high speed.
3. Maintain a 5˚ to 10˚ 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.
MOUNTING SANDING BACKING PADS
WARNING: To reduce the risk of serious personal injury, turn tool off and
disconnect tool from power source before making any adjustments or removing/
installing attachments or accessories.
CAUTION: Proper guard must be reinstalled for grinding wheel, sanding flap disc,
wire brush or wire wheel applications after sanding applications are complete.
1. Place or appropriately thread backing pad (O) on the spindle.
2. Place the sanding disc (P) on the backing pad.
3. While depressing spindle lock, thread clamp nut (H) on spindle, piloting the
raised hub on the clamp nut into the center of san ding disc and backing pad.
4. Tighten the clamp nut by hand. Then depress
the spindle lock button while turning the
sanding disc until the sanding disc and
clamp nut are snug.
5. To remove the wheel, grasp and turn
the backing pad and sanding pad while
depressing the spindle lock button.
USING SANDING BACKING PADS
Choose the proper grit sandpaper for your
application. Sandpaper is available in various
grits. Coarse grits yield faster material removal
rates and a rougher finish. Finer grits yield
slower material removal and a smoother finish.
Begin with coarse grit discs for fast, rough material removal. Move to a medium grit
paper and finish with a fine grit disc for optimal finish.
Coarse
Medium
Fine Finishing
Very Fine Finishing
1. Allow the tool to reach full speed before touching tool to the work surface.
2. Apply minimum pressure to work surface, allowing the tool to operate at high
5˚-10˚
speed. Sanding rate is greatest when the tool operates at high speed.
12
P
H
O
16 - 30 grit
36 - 80 grit
100 - 120 grit
150 - 180 grit