Craftsman 27675 - Professional 5 in. 3.0 Amp Random Orbit Sander Operator's Manual page 18

USING YOUR SANDER cont.
Z_ CAUTION"
To ensure proper brake operation afler extended use, periodically
check its operation by removing the sanding disc and running the sander without
load (off the workpiece).The backing pad should not tak:e Ilonger than 6 seconds
to stop. If it takes longer than 6 seconds to stop, then brake should be replaced.
NOTE: The brake is available and can be purchased at lIIhenearest Sears Parts
and Repair Center.
SANDING TIPS
1. DO NOT force the sander. The weight of the sander supplies adequate pressure on
the workpiece. Let the sander and the sandpaper's grit do the work.
• Applying additional pressure will only slow down the motor, wear the sandpaper
out faster and reduce the sander's orbital speed.
• Excessive pressure will overload the motor and cause possible damage to the
sander from the motor overheating.
• Excessive pressure will also result in a poor quality finish.
2. Any existing finish or resin on wood may soften from the heat of the friction and cause
the sandpaper to load-up faster.
3. Inspect sandpaper frequently and change paper when grit is worn and not able to
perform properly.
4. DO NOT sand in one spot for too long a time because the sander's rapid action may
remove too much material and make the surface uneven.
SELECTING THE RIGHT SANDPAPER
Selecting the correct grit and type of sandpaper is an extrernely important decision that
will allow you to achieve the best quality sanding finish.
1. Aluminum oxide, silicon carbide and other synthetic abrasives are best for power sanding.
2. Natural abrasives such as flint and garnet are too soft for economical use in power sanding.
3. Coarse grit will remove the most material and finer grit willl give you the best finish in all
sanding operations.
4. The condition of the surface to be sanded will determine which grit will do the job.
5. If the surface is rough:
• Start with a coarse grit and sand until the surface is uniform.
• Then use medium to remove any scratches left by the (',oarsegrit.
• Then use a finer grit for finishing the surface.
NOTE: ALWAYS continue sanding with each grit until the surface is uniform.
NOTE: DO NOT use the sander without sandpaper. This will damage the cushion.
Z_ WARNING:
DO NOT wear loose clothing or jewelry 'whenoperating sander.
They could get caught in moving parts, causing serious injiury.Keep head away from
sander and sanding area. Hair could be drawn into sandelr, causing serious injury.
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