-30-
For Machines Mfd. Since 10/20
South Bend Tools
Model SB1093
O P E R A T I O N
6.
Slide new sanding belt over rollers and
position at center.
Figure 50. Removing sanding belt.
7.
Follow steps for
Tensioning Sanding Belt
on
This Page
and
Tracking Sanding Belt
on
Page 31
.
8.
Re-install side cover and close end guard.
Changing Sanding
Belt
1.
DISCONNECT MACHINE FROM POWER!
2.
Loosen end guard lock knob and swing end
guard open.
3.
Remove side cover by unscrewing (2) lock
knobs (see
Figure 49
).
4.
Loosen belt tension knob (see
Figure 49
)
until sanding belt is loose and slides freely
back and forth.
To change sanding belt:
Some sanding belts are designed to sand in only
one direction and will have a direction indicated
on the back of the belt. The Model SB1093
is designed so that the sanding belt travels
clockwise as viewed from the side.
5.
Remove belt from rollers and sanding belt
frame (see
Figure 50
).
Tensioning Sanding
Belt
Sanding belt tension will change over time as the
sanding belt wears and the user tends to apply
more pressure during usage. A belt that is not
tensioned properly becomes inefficient, wanders
back and forth, or creates excessive wear on your
machine.
Optimal settings for sanding belt tension often
change, so use this as a guide to help determine
the right belt tension.
Symptoms of low belt tension:
Tracking Problems:
A loose belt will tend to
wander to one side and/or the other. This may
also be a sign of a worn/stretched belt in which
case, it may be time to replace it.
Belt Slippage:
If you notice the belt slipping
during operation or the printing on the back of
the belt is highly worn, this is likely a sign that
your belt is loose.
Symptoms of high belt tension:
Tracking Problems:
A belt that is too tight will
also cause tracking problems, although the belt
will usually tend to track to one side, not wander
back and forth.
Machine Stops Quickly:
When properly
tensioned, the machine will turn a few
revolutions after the power has been turned off.
If your machine stops quickly after being turned
off, this may be a sign of a sanding belt that is
too tight.
Belt Wears Prematurely:
An over-tensioned
sanding belt will stretch and become weak,
shortening the lifespan of the belt.
Figure 49. Sanding belt access components.
Side Cover
Lock Knobs
Tension
Knob
!
Side Cover
