Hart HPSD85 Manuel D'utilisation page 6

OPERATION
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.
NOTE: DO NOT use sander without sandpaper. Doing so
will damage the cushion.
Sheet/Pad
60-grit sanding sheet
(Part no. 019160001031)
120-grit sanding sheet
(Part no. 019160001032)
240-grit sanding sheet
(Part no. 019160001033)
WARNING:
Always remove the battery pack when attaching, chang-
ing, or rotating sanding sheets. Failure to do so could
cause accidental starting, leading to serious personal
injury.
ATTACHING SANDING SHEETS, SCRUBBING
PADS AND POLISHING PADS
See Figure 3, page 8.
Align the pointed tip and rounded edges of the sanding sheet
or pad with the pointed tip and rounded edges of the hook-
and-loop pad. Carefully press the fuzzy side of the sanding
sheet against the pad as tightly as possible.
NOTE: Sanding sheets can be reused for the life of the sand-
ing abrasive. It is recommended that you keep the sanding
sheet backing pad clean to provide for best adhesion. Clean
occasionally by brushing lightly with a small brush.
ATTACHING THE SANDER TO A VACUUM
(ADAPTOR NOT INCLUDED)
See Figures 4 and 5, pages 8 and 9.
When sanding for an extended period of time, you
can install a vacuum adaptor to attach a vacuum hose
to the sander. The vacuum adaptor will connect to a
1-1/4 in. or 1-7/8 in. diameter vacuum hose.
NOTE: Vacuum adaptor sold separately.
Recommended Use
Coarse sanding
Light sanding
Finish sanding
6 – English
To attach:
z Remove the battery pack.
z Pull up and open the vacuum port door .
z Insert the vacuum adaptor and make sure it is securely
attached to the sander exhaust port.
z Attach the vacuum hose to the adaptor.
z Reinstall the battery pack.
WARNING:
When the sander is not connected to a vacuum, always
remove the adaptor and securely close the door to the
exhaust port. Failure to do so could cause sanding dust
or foreign objects to be thrown into the face or eyes
which could result in possible serious injury.
OPERATING THE SANDER
See Figures 6 and 7, page 9.
z Secure the workpiece to prevent it from moving under
the sander.
WARNING:
Unsecured workpieces could be thrown towards the
operator, causing injury.
WARNING:
Keep your head away from the sander and the sanding
area. Your hair could be drawn into the sander causing
serious injury.
z Place the sander on the workpiece so that all of the
sanding sheet surface is in contact with the workpiece.
NOTICE:
To avoid damaging the motor from overheating, be
careful not to let your hand cover the air vents.
z Turn on the sander and move it slowly over the work-
piece. Make successive passes in parallel lines, circles,
or crosswise movements.
z Turn off the sander and wait until it comes to a complete
stop before removing it from the workpiece.
Do not force. The weight of the unit supplies adequate pres-
sure, so let the sanding sheet and sander do the work. Apply-
ing additional pressure slows the motor, rapidly wears the
sanding sheet 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 the sander's
rapid action may remove too much material, making the
surface uneven.