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.
Fig. 3 |
Fig. 4
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.
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