ADJUSTMENTS
-19-
Figure 19.
Platen depth knob.
Figure 20.
Boards placed under pressure rollers
as a gauge.
Platen Depth
Occasionally you will need to “reset” the platen
depth and make it even with the sanding belt
rollers.
Set the platen depth as follows:
1.
Unplug the sander from the power!
2.
Lower the conveyor table down as far as it
will go so that you have enough room to
work under the sanding belt rollers.
3.
Place a straightedge across the bottom of
both sanding belt rollers.
4.
Using the platen adjustment knob shown in
Figure 19
, move the platen so that it bare-
ly touches the straightedge, and thus, is
even with both sanding belt rollers.
Pressure Rollers
The pressure rollers can be adjusted in two
ways—the depth and the tension. For proper
depth, the front pressure roller should be
approximately .040" below the level of the sand-
ing rollers and the rear pressure should be
approximate .020" below the level of the sand-
ing rollers.
Adjust the pressure roller depth as
follows:
1.
Unplug the sander
, but keep air pressure
coming in and have the sanding belt
installed and tensioned for the following
steps.
2.
Make two adjustment boards that are 24"
long and are of a uniform thickness.
3.
Place each board on each side of the con-
veyor belt so that they are positioned
directly below the front and back pressure
rollers as shown in
Figure 20
.
