Choosing Sanding Belts; Sanding Tips; Positioning Platen - Grizzly POLAR BEAR SERIES Owner's Manual

Choosing Sanding
Belts

choosing sanding belts

This machine uses a 6" W x 79" L belt. Below is a
chart that groups abrasives into different classes,
and shows which grits fall into each class.
Grit Class
36 Extra Coarse
60 Coarse
80–100 Medium
120–180 Fine
To achieve a finer finish, the general rule is to sand
a workpiece with progressively higher grit num-
bers, with no one grit increase of more than 50.
Avoid skipping grits; the larger the grit increase,
the harder it will be to remove the scratches from
the previous grit.
Ultimately, the type of wood you use and your
stage of finish will determine the best grit types to
install on your sander.

Sanding Tips

• Extend the life of the sanding belt by
regularly using a PRO-STICK
surface cleaner (see Accessories on
Page 31).
• When sanding workpieces with a bow or
crown, place the high point up on the table to
prevent the workpiece from rocking, then take
very light passes.
• Use the full width of the sanding belt by
adjusting table height or workpiece position
so sanding is not always done in just one
area.
Model G0839P (Mfd. Since 04/18)

Positioning Platen

The platen can be positioned vertically or horizon-
tally. Position the platen vertically for edge and
end sanding and horizontally for face sanding and
sanding belt removal/replacement.
To position the platen:
1.
2.
3.
4.
abrasive
®
Figure 24. Platen positioned vertically and
DISCONNECT MACHINE FROM POWER!
Lift handle to release platen lock (see
Figure 24).
Manually rotate platen assembly to vertical or
horizontal position (see Figure 24).
Push handle down to lock platen in position
(see Figure 24).
Handle
Handle
horizontally.
-23-