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SANDPAPER SELECTION
selecting t hecorrect sizegdtandtypesandpaper is
an
extremely importantstep in achievinga high quality
sanded finish.Aluminumoxide, siliconcarbide, and other
syntheticabrasivesare best for power sanding. Natural
abrasives, such as flint and garnet are too soft for eco-
nomical use in power sanding.
In general, coarse gdt will remove the most material and .
finer grit will producethe best finish in all sanding opera-
fions. The condition of the surface to be sanded will
determine which gdt 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 gdt used for
finishingof the surface.Always continue sandingwith
each grit untilsurface is uniform.
Note: Do not use sander without sandpaper. Doing so
will damage the cushion.
,_
WARNING: Do not wear loose clothingor jewelry
,whenoperatingsander. They could get caught in
moving parts causing sedous injury. Keep head away
from sander and sanding area. Hair could be drawn
intosander causing serious injury.
ORBITAL MOTION
See Figure 8.
Orbital motion is ideal for fast cutting actionwhen
removingold finishes,smoothingroughwood, cutting
stock downto required dimensions,or for finishing
surfaces to be painted. As shown in figure B. the
sandpaper moves in tiny circlesat a very high speed,
allowingthe sander to move easily.
_::_" _Jr
Flush sanding can be performedwith your sander. See
Figure 9. Every side except the rear of your sander allows
flush sanding in comers. Always remove sander from
workplece before turning your sander off.
.ha
Fig. 9
REMOVING SANDPAPER
BEFORE STORAGE
Do not store your sander with pressure sensitiveadhesive
sandpaper installed. Heat generated from sanding causes
the pressuresensitive adhesive to flow and form a tight
bend between the cushionand sandpaper.
Removingthe sandpaper soon after you have finisheda
sanding operation avoids letting the adhesive set up. If the
sandpaper Is left on the cushionfor an extended pedod of
time after use, the adhesive will set up and cause the
sandpaper to become difficultto remove.
It may also tear when removing.When this situation
occurs, It becomes difficultto clean the cushionfor the
next piece of sandpaper.
Note: If you forget to remove the sandpaper after a
sanding operation, sand for a few minutesto soften the
adhesive backing before attempting to remove sandpaper.
ORBITAL MOTION
Fig. 8
10
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