Ryobi P440 Manuel D'utilisation page 7

INSTALLING NON-ADHESIVE SANDPAPER
See Figure 2, page 10.
 Remove the battery pack.
 Inspect sandpaper before installing; do not use if broken
or defective.
 If replacing sandpaper, remove old sandpaper. To remove
paper, release paper clamp by lifting up on lever, and
disengaging it from the tab on the platen.
 Insert end of new 1/4 sheet sandpaper approximately
1/2 in. under the paper clamp.
NOTE: 1/2 in. clamping of sandpaper is necessary for
multi-sheet stacking of paper.
 Lift up on paper clamp lever and lock into place. Apply
downward pressure to conform sandpaper to platen.
 Wrap sandpaper around cushion. Lift lever on opposite
end of sander and insert loose end of sandpaper under
paper clamp. Fit sandpaper against cushion tightly.
 Lift up on lever and lock into place.
INSTALLING ADHESIVE SANDPAPER
See Figure 2, page 10.
 Remove the battery pack.
 If replacing adhesive sandpaper, remove old sandpaper
by peeling it off cushion.
NOTE: Sand for a few minutes to soften the adhesive
backing before attempting to remove old sandpaper.
 If replacing regular sandpaper, release paper clamp by
lifting up on lever and disengaging it from the tab on the
platen. Remove non-adhesive sandpaper, then lift up on
paper clamp lever and lock it into place.
 Carefully peel adhesive backing from new 1/4 sheet
sandpaper.
 Position sandpaper, making sure front edge of sandpaper
is aligned with front edge of the cushion, then carefully
press sticky side of sandpaper on cushion.
NOTE: Sandpaper must be aligned with the front edge
of the cushion for proper functioning of the flush sanding
feature.
NOTE: The cushion on the sander is approximately 1/4 in.
smaller than precut adhesive-backed sanding sheets. If
desired you may want to trim off the overhang of sandpaper
on the back side of cushion. The cushion has been made
smaller so that multiple sheets of non-adhesive sandpaper
can be installed.
PAPER PUNCH
See Figure 3, page 10.
A paper punch template has been supplied with the sander for
aligning and punching holes in sandpaper. The punched holes
must align with the holes in the sander cushion. Punching
the holes properly is a necessary step for dustless sanding.
OPERATION
 Install sandpaper on the sander.
 Align sander cushion to paper punch as shown.
 Push down on sander.
WARNING:
Always wear eye protection with side shields marked to
comply with ANSI Z87.1. Failure to do so could result in
objects being thrown into your eyes resulting in possible
serious injury. If the sanding operating is dusty, also wear
a face or dust mask.
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.
SANDING
See Figures 4 - 5, page 11.
Clamp or otherwise secure the work to prevent it from mov-
ing under the sander.
WARNING:
Unsecured work 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.
NOTICE:
To avoid damaging the motor from overheating, be careful
not to let your hand cover the air vents.
Hold the sander in front and away from you, keeping it clear
of the workpiece. Start the sander by pressing the switch
button to ON position and letting the motor build to its maxi-
7 - English