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Page 7
OPERATION
PREPARING FOR OPERATION
CAUTION:
Be careful not to let your hand cover the air vents.
TO OPERATE
When applicable, clamp or otherwise secure the work to
prevent it from moving under your sander.
WARNING:
Unsecured work could be thrown towards the operator
causing injury.
SANDING
See Figures 3 and 4.
Hold sander in front and away from you, keeping it clear of the
workpiece. Start sander and let the motor build to its maximum
speed, then gradually lower on the work with a slight forward
movement. Move it slowly over workpiece using forward and
backward or side to side strokes. Upon completion of sanding
operation, always remove sander from workpiece before
turning it off.
DO NOT FORCE. The weight of the unit supplies adequate
pressure, so let the sandpaper and sander do the work.
Applying additional pressure only slows the motor, rapidly
wears sandpaper and greatly reduces sander speed.
Excessive pressure will overload the motor causing possible
damage from motor overheating and can result in inferior
work. Any finish or resin on wood may soften from the
frictional heat. Do not allow sanding on one spot too long as
sander's rapid action may remove too much material, making
the surface uneven.
SANDPAPER SELECTION
Selecting the correct size grit and type sandpaper is an
extremely important step in achieving a high quality sanded
finish. Aluminum oxide, silicon carbide, and other synthetic
abrasives are best for power sanding. Natural abrasives,
such as flint and garnet are too soft for economical use in
power sanding.
In general, coarse grit will remove the most material and finer
grit will produce the best finish in all sanding operations. The
condition of the surface to be sanded will determine which grit
will do the job. If the surface is rough, start with a coarse grit
and sand until the surface is uniform. Medium grit may then
be used to remove scratches left by the coarser grit and finer
grit used for finishing of the surface. Always continue sanding
with each grit until surface is uniform.
WARNING:
Do not wear loose clothing or jewelry when operating
sander. They could get caught in moving parts causing
serious injury. Keep head away from sander and sanding
area. Hair could be drawn into sander causing serious
injury.
Fig. 4
Fig. 3