DeWalt DC415 Instruction Manual page 21

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
serious personal 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
NOTE: Guard may be removed when using sanding backing pads.
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 (Q) on the spindle.
2. Place the sanding disc (R) on the backing pad (Q).
3. While depressing spindle lock, thread clamp nut (G) 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 sanding discs
for your application. Sanding discs are
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.
5˚-10˚
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 speed. Sanding rate is greatest when the tool
operates at high speed.
3. Maintain a 5˚ to 15˚ angle between the
tool and work surface. The san ding disc
should contact
(25.4 mm) of work surface.
19
G
16 - 30 grit
36 - 80 grit
100 - 120 grit
150 - 180 grit
approximately 1"
R
Q
5˚-15˚