-26-
For Machines Mfd. Since 12/20
South Bend Tools
Model SB1117
O P E R A T I O N
Checking/Adjusting
Belt Tracking
The purpose of belt tracking is to make sure
the belt stays centered on the drums and platen
during sanding operations. The belt tracking
needs to be checked any time you change or
replace the belt.
If sanding belt tracking is not adjusted properly,
the belt can be damaged and present a serious
safety hazard if it moves off center of the drums
and throws material when it contacts the belt
guard and other components.
It is necessary to connect machine to power
to visually track the sanding belt tracking.
DO NOT attempt to perform any adjustments
to sanding belt while machine is connected
to power. Failure to unplug machine before
making adjustments could result in serious
personal injury.
3.
Loosen jam nut shown in Figure 33.
4.
Adjust tracking with tracking adjustment
knob and continue to rotate belt by hand
until sanding belt is centered on drive wheel
(see Figures 33
–
34).
Note
: Adjust tracking adjustment knob in
about 1-turn increments.
Even Spaces
Even Spaces
on Both Sides
on Both Sides
Figure
Figure 34. Example of sanding belt centered on drive
. Example of sanding belt centered on drive
wheel.
wheel.
Figure
Figure 33. Belt tracking components.
. Belt tracking components.
Tracking
Tracking
Adjustment
Adjustment
Knob
Knob
Jam Nut
Jam Nut
!
5.
Once belt tracks centered on drive wheel,
tighten jam nut from Step 3 to secure
setting.
6.
Proceed to Checking/Adjusting Belt
Tracking to complete belt tracking.
Pre-Tracking Belt
You must perform the following procedure after
installing a sanding belt to ensure that the belt
does not come off or get jammed against the
sanding belt frame.
To pre-track belt:
1.
Install desired sanding belt as described in
Installing/Changing Sanding Belts on
Page 24.
Items Needed
Qty
Protective Gloves .......................................... 1 Pair
Fingers or other body parts can be quickly
injured if they touch moving sanding surfaces.
To reduce this risk, wear gloves in next step.
2.
Standing in front of sander, push sanding
belt multiple times along platen, so that it
moves in direction of operation (clockwise
on rollers), then watch how belt tracks on
drums.
Содержание SB1117
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