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Sanding Belts
As sanding drums are used, the sandpaper can
quickly become "loaded" with sawdust. If not
removed, this sawdust may harden on the
abrasive surface and can glaze instead of sand
the wood, thus, rendering the sandpaper useless.
To avoid this condition, routinely clean the
sandpaper with a rubber gum abrasive cleaner
such as the D3003 PRO-STIK
®
15" x 20" cleaning
pad shown in Figure 51. to extend the life of
the sandpaper.
Discard all worn
sandpaper because
the grit will fall off
causing deep gouges
in the workpiece. Also
the glue used to hold
the grit to the paper
can rub off onto the
workpiece burning the
workpiece. Contrary to some beliefs, worn
abrasive belts are not the equivalent to the next
finer grit abrasive.
There are many types
of sandpaper you can
use. Aluminum Oxide
is excellent for
general wood shop
use. To the right is a
chart that groups
abrasives into
different classes, and
shows which grits fall into each class.
The Model W1678 allows you to use two
different grit sandpapers at once. The first
drum is fitted with a coarser grit than the
second. Usually this translates into
combinations of successive group types. A
common selection for a workpiece that is
planed before it is sanded, is the 100/150 grit
combination.
Overall, the general rule of thumb is to sand a
workpiece with sandpaper that uses
progressively higher grit numbers, with no one
grit increase of more than 50.
Ultimately, the type of wood you use and your
stage of finish will determine the best grit types
to install on your sander.
-29-
MAINTENANCE
General
Regular maintenance on your Model W1678 helps
ensure optimum performance. Inspect your
machine each time you use it for the following
conditions. Adjust, repair, or replace parts
when worn.
1. Inspect for loose bolts and panels.
2. Make sure the work area is clean, and remove
any tools or rags from the machine.
3. Replace worn electrical parts like the
emergency stop switch, ON and OFF push
buttons, and damaged cords and plugs.
4. Replace damaged sandpaper, motor V-belts,
or conveyor drive chains and sprockets.
5. Correct any other condition that could
hamper the safe operation of this machine.
6. Routinely clean the sandpaper with a PRO-STIK
®
15" x 20" cleaning pad shown in Figure 51.
GRIT RANGE TYPE
60
80-100
120-180
220
Coarse
Medium
Fine
Very Fine
GRIT PART #
REPLACEMENT SANDPAPER
60
100
150
D3162
D3163
D3164
Figure 51. PRO-STIK
®
15" x 20" cleaning pad.
MAINTENANCE