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-9-
)6:-')
6):)28-:) 1%-28)2%2')
4)6*361)(&=92%98,36->)(
4)67322)0 1%= 6)7908 -2 1-740%'-2+ 3*
-28)62%0 ;-6)7 %2( '31432)287 ;,-',
'390( '%97) 7)6-397 ,%>%6( We
recommend that all tool service be performed
by a Bosch Factory Service Center or Autho -
rized Bosch Service Station.
Your Bosch tool has been properly lubricated
and is ready to use. It is recommended that
tools with gears be regreased with a special
gear lubricant at every brush change.
330-47
%-28)2%2')
!
WARNING
open-coat aluminum oxide sanding
discs are recommended for most wood or
metal sanding applications, as this synthetic
material cuts quickly and wears well. Some
applications, such as plastics, glass, or stone
require silicon carbide discs, which have a very
sharp cutting edge. For best results, use
Bosch sanding and polishing accessories
which are of superior quality and are carefully
selected to produce professional quality results
with your sander.
With the workpiece firmly secured, depress
switch while applying the pad to the work
surface. DO NOT apply excessive pressure
as this will slow the pad action, and DO NOT
start the tool and bring it up to speed before
applying to the work; swirl marks will result in
either case. In general, higher speeds and
moderate pressure will give the best results. If
faster removal is desired, DO NOT INCREASE
PRESSURE ON THE TOOL; use a coarser
grade of abrasive. Move the sander in long
sweeping strokes, parallel to the grain using
some lateral motion to overlap the strokes by
as much as 75%. The random orbit action
allows cross-grain sanding, but be careful not
to tilt the sander near edges, or undesirable
rounding may result.
If the surface is rough, begin with coarser grits
and then complete the surfacing with medium
and fine abrasives. Because the random orbit
action is so effective, it is often possible to
begin sanding with a medium grit disc and go
directly to fine finishing. To avoid uneven
results, do not skip more than one grit size
when going from coarser to finer, and do not
sand in one area for too long. When the job is
completed, release switch, and gently lift the
tool from the work surface at the same time.
for most polishing, the extra soft
backing pad will give the best results. The
random orbit sander may be fitted with a foam
buffing pad or sponge applicator pad (optional
accessories) to polish or remove scratches
from painted or finished surfaces, plastics, and
even glass. The tool is operated in much the
same way as when sanding, but the following
points should be observed;
Apply the compound to the surface, and use
the sponge applicator pad with light pressure
and a circular motion to remove scratches and
restore weathered finishes. Use only as much
compound as necessary, and clean the
sponge frequently during use.
When initial polishing is completed, wipe away
any excess compound with a soft towel, and
then polish the surface to its final finish with the
buffing pad. Use smooth overlapping strokes
for best results.
It is important to note that the orbit speed of
the random orbit sander is not the same as the
RPM of a standard right-angle polisher. The
random orbit action is much like a powerful
hand polishing action, and therefore does not
have the high speeds at the edge of the pad
which can burn the work surface. For this
reason, it is possible to select a higher OPM
for the random orbit sander than the
recommended RPM for a standard polisher.
Practice on a hidden area or test surface until
you have determined the tool is suitable for
your polishing application.
Clean the buffing pad and sponge applicator
pad with mild detergents and warm water. DO
NOT use solvents.
BM 2609932224 07-09:BM 2609932224 07-09 7/30/09 8:22 AM Page 9
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