DeWalt DWE6421 Instruction Manual page 28

FIG. 4
B
TO EMPTY THE DUST BAG
1. While holding the sander, turn the collar (D) counterclockwise to
unlock the dust bag (C).
2. Remove dust bag from the sander and gently shake or tap the
dust bag to empty.
3. Reattach the dust bag back onto the outlet and lock into place by
turning the dust bag collar clockwise.
You may notice that all the dust will not come free from the bag. This
will not affect sanding performance but will reduce the sander's dust
collection efficiency. To restore your sander's dust collection efficiency,
depress the spring inside the dust bag when you are emptying it and
tap it on the side of the trash can or dust receptacle.
CAUTION: Never operate these tools unless the dust collector
is in place. Sanding dust exhaust may create a breathing hazard.
OPERATION (FIG. 5)
WARNING: Always observe the safety instructions and applicable
regulations.
WARNING: To reduce the risk of injury, turn unit off and
disconnect tool from power source before installing and
removing accessories, before making any adjustments or
removing/installing attachments or accessories. An accidental
start-up can cause injury.
C NOTICE: These sanders are not to be used in drywall applications.
D
NOTICE: Avoid overloading your sander. Overloading will result in a
considerable reduction in speed and finish quality of your work. The
unit may also become hot. In this event, run sander at a no load
condition for a minute or two.
NOTICE: If you wrap the cord around the tool when you store it, leave
a generous loop of cord such that the strain relief (F, Fig. 1) does not
bend. This helps prevent premature cord failure.
To operate your sander, grasp it as shown in Figures 5A or 5B and turn
it on. Move the unit in long, sweeping strokes along the surface being
sanded, letting the sander do the work.
FIG. 5A
Pushing down on the tool while sanding actually slows the removal
rate and produces an inferior quality surface. Be sure to check your
work often, this sander is capable of removing material rapidly,
especially with coarse paper.
The random orbital action of your sander allows you to sand with
the grain or at any angle across it for most sanding jobs. To produce
the best finish possible, start with coarse grit sandpaper and change
gradually to finer and finer paper. Vacuum and wipe surface with a
tack cloth between grit steps. Your sander is designed to sand into
small or confined areas. Its small size and light weight make it ideal for
overhead work.
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FIG. 5B