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▶ Service
P r e v e n t i v e
m a i n t e n a n c e
performed by unauthorized per so n nel
may result in misplacing of internal
wires and components which could
cause serious hazard.
We recommend
that all tool service be performed by a
Bosch Factory Service Center or Autho -
rized Bosch Service Station.
▶ Tool Lubrication
Y o u r B o s c h t o o l h a s b e e n p r o p e r l y
lubricated and is ready to use. It is
recommended that tools with gears be
regreased with a special gear lubricant
at every brush change.
▶ Carbon Brushes
The brushes and commutator in your
Operating Instructions
Maintenance
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
f a s t e r r e m o v a l i s d e s i r e d , D O N O T
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
s a n d e r n e a r e d g e s , o r u n d e s i r a b l e
rounding may result.
I f t h e s u r f a c e i s r o u g h , b e g i n w i t h
coarser grits and then complete the
s u r f a c i n g w i t h m e d i u m a n d f i n e
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
t h a n o n e g r i t s i z e w h e n g o i n g f r o m
coarser to finer, and do not sand in one
a r e a f o r t o o l o n g . W h e n t h e j o b i s
completed, release switch, and gently
lift the tool from the work surface at the
same time.
▼ POLISHING:
F o r m o s t p o l i s h i n g , t h e e x t r a s o f t
backing pad will give the best results.
The random orbit sander may be fitted
w i t h a f o a m b u f f i n g p a d o r s p o n g e
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
p r e s s u r e a n d a c i r c u l a r m o t i o n t o
r e m o v e
s c r a t c h e s
a n d
r e s t o r e
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
t h a n t h e r e c o m m e n d e d R P M f o r a
standard polisher. Practice on a hidden
a r e a o r t e s t s u r f a c e u n t i l y o u h a v e
determined the tool is suitable for your
polishing application.
C l e a n t h e b u f f i n g p a d a n d s p o n g e
applicator pad with mild detergents and
warm water. DO NOT use solvents.
To avoid accidents, always disconnect the tool and/or charger from the
power supply before servicing or cleaning.
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