▶ Electronic Feedback
Circuitry (EFC)
The internal electronic feedback system
provides a "soft start", which will reduce
the stresses that occur from a high
torque start. The system also helps to
k e e p t h e n o l o a d s p e e d v i r t u a l l y
constant between no-load and load
conditions.
▶ Variable Speed with
Dial Setting
Your sander is also equipped with a
variable speed dial. The sander's orbital
pad speed can be preset from zero to
maximum nameplate OPM by rotating
the dial in the housing. The dial may be
set on or between any of six positions
(1=low through 6=high).
The following table may be used as a
general guide for abrasive and backing
pad selection, but the best results will
be obtained by sanding a test sample of
the workpiece first.
▶ Tool Tips
▼ SANDING:
O p e n - c o a t a l u m i n u m o x i d e s a n d i n g
discs are recommended for most wood
or metal sanding applications, as this
s y n t h e t i c m a t e r i a l c u t s q u i c k l y a n d
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
B o s c h
s a n d i n g
a n d
p o l i s h i n g
a c c e s s o r i e s w h i c h a r e o f s u p e r i o r
quality and are carefully selected to
produce professional quality results
with your sander.
W i t h t h e w o r k p i e c e f i r m l y s e c u r e d ,
depress switch while applying the pad to
t h e w o r k s u r f a c e . D O N O T a p p l y
excessive pressure as this will slow the
-10-
Operating Instructions
Material
Grit size
Speed
setting
Backing pad
Rough
sanding
Fine sanding
W
o
o
d
s
Softwoods
40/60
240
5-6
soft/medium
Hardwoods
40/60
180/240
5-6
medium
Veneers
240
320/400
5
soft/medium
M
e
t
a
ls
Steel
80/180
400
5
hard
Stainless steel
120
240
5
medium
Aluminum
80
240/400
4-5
medium
Rust spots
40
120
6
medium
S
y
n
t
h
e
t
ic
p
a
in
t
Sanding
180
400
4-5
medium
Scratches
120
220
3-4
hard
Stripping
40/60
80/120
5-6
medium
A
c
r
y
li
c
p
a
in
t
Sanding
180
320/400
4-5
medium
Scratches
120
240
4-5
hard
Stripping
40/60
80/120
2-3
medium
P
la
s
t
ic
s
PC/polystyrene
120
240
3-5
soft/medium
Thermoplastics
60
180
1-3
medium
Glass fiber
reinforced plastics
80/120
240/400
1-3
medium/hard
Solid Surfaces
120
180/400
4-6
medium
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