Sanding Tips; Dust Extraction - Bosch 3289D Instruction Manual

4. Wrap the sheet around the length of the pad
and attach free end of sheet under opposite
clamp and repeat procedures 1, 2, & 3 above.
The abrasive sheet must be drawn as tight as
possible for efficient sanding, a loose sheet can
slip on the work surface.
After the paper has been installed, it will be
necessary to punch holes into the paper with the
use of the punch plate provided with your
sander. Align sander base 7 with punch plate,
and push down on sander until punch plate 9
pierces the paper. Then remove punch plate
from sander.

Sanding Tips

This sander has been designed for even weight
distribution which virtually eliminates the need
for pressure. Excessive pressure to the sander
may result in an uneven sanding job and prema-
ture grit wear. Constant and excessive pressure
can cause overheating and possible damage to
the motor.
It's usually best to work in strokes that parallel
the grain, using some lateral motion so the main
strokes are overlapped as much as 75%.
BM 2610991835 9/96
If the surface is rough, start sanding with a
coarse grit sheet, then medium and then finish
with a fine or extra fine abrasive. This proce-
dure will vary with different types of materials
2
2
and work. Continue to sand with each grit until
the surface looks uniform. When going from
3
3
one grit size to a finer size, do not skip more than
two sizes.
4
4
To remove the greatest amount of stock, use a
coarse grit and move the sander steadily over
the entire surface against the grain as well as
with the grain. DO NOT REMAIN IN ONE
SPOT TOO LONG. It may remove too much
material and uneven sanding will result. Sand-
ing with the grain of the wood gives the smooth-
est final finish.
Additional abrasive sheets can be conveniently
cut from large-size commercially available
sheets (standard size: 228 x280mm; 9 x 11-1/
16"). Cut into four pieces of equal size as
shown. Choose the proper grit for the job.
7
9
The integral dust extraction system collects
sanding dust in
the bag supplied
with
sander.
maximum effi-
ciency, the bag
should be emp-
tied when it is
no more than
7
7
280mm(11-1/16")

Dust Extraction

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12/14/98, 11:13 AM
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