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For Machines Mfd. Since 12/20
South Bend Tools
Model SB1117
O P E R A T I O N
Choosing
Sanding Belts
The Model SB1117 uses a 9" x 138
1
/
2
" sanding
belt.
We recommend using aluminum-oxide
sanding belts for best results. The grit you
choose will depend on the condition and species
of wood, and the level of finish you wish to
achieve.
Installing/Changing
Sanding Belts
The sanding belt should be replaced whenever
there is a noticeable change in sanding quality/
performance. You may also need to change grit
sizes of sanding belt for quick material removal
or finer finishes.
Required Sanding Belt Size ............9" x 138
1
/
2
"
To install/change sanding belt:
1.
DISCONNECT MACHINE FROM POWER!
2.
Remove (2) belt guard lock knobs and
washers (see Figure 28).
3.
Loosen back stop lock knob (see Figure 28)
and open belt guard and back stop door.
Figure
Figure 28. Belt guard components.
. Belt guard components.
Belt Guard
Belt Guard
Lock Knob
Lock Knob
(1 of 2)
(1 of 2)
Back Stop
Back Stop
Lock Knob
Lock Knob
Grit
Class
Usage
36
Extra
Coarse
Rough sawn boards,
thickness sanding, and
glue removal.
60
Coarse
Thickness sanding and
glue removal.
80–100
Medium
Removing marks and
initial finish sanding.
120–180 Fine
Finish sanding.
The general rule of thumb is to sand a workpiece
with progressively higher grit numbers
—
in
increments of 50 or less. Avoid skipping grits; the
larger the grit increase at one time, the harder it
will be to remove the scratches from the previous
grit.
Note:
Sandpaper finer than 180-grit will easily
load up or burn workpieces.
