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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
keep the no load speed virtually
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:
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
-10-
Operating Instructions
Material
Grit size
Speed
setting Backing pad
Rough
sanding Fine sanding
Woods
Softwoods 40/60 240 5-6 soft/medium
Hardwoods 40/60 180/240 5-6 medium
Veneers 240 320/400 5 soft/medium
Metals
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
Synthetic
paint
Sanding 180 400 4-5 medium
Scratches 120 220 3-4 hard
Stripping 40/60 80/120 5-6 medium
Acrylic
paint
Sanding 180 320/400 4-5 medium
Scratches 120 240 4-5 hard
Stripping 40/60 80/120 2-3 medium
Plastics
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
2610052963.qxp_GET65-5 7/8/19 12:40 PM Page 10
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