Woodstock W1751 - Manual (Page 27)

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W1751 25" Wide-Belt Sander
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Belt Oscillation Speed
For normal operations, the oscillation speed should be
set so that it takes approximately a second or two to
complete each direction of travel; however, you can
experiment with different speeds to see how the results
may affect your finished product. Often, you may find
that certain speeds yield better results for different
varieties of stock and the feed rates chosen.
To set the belt oscillation speed, do these steps:
Note: Since each adjustment effects the other two
slightly, you may have to repeat or fine-tune the Belt
Tracking and the Jet Air Flow adjustments after you do
this procedure.
1. Complete the Belt Tracking adjustments on Page 24.
2. Put on safety glasses, tie back all loose clothing,
remove jewelry, pull back sleeves, and tie back long
hair so it will not get caught by the sanding belt.
3. If you have not already done so, turn the sander
ON .
4. Looking from the front of the sander, observe the
left-to-right motion of the belt as it moves along the
drum.
—If the oscillation is very sluggish (streaks are
appearing on the workpiece), or the oscillation is
very fast (less than a second), loosen the jam nut
on the air valve and adjust the knob to restrict or
apply more air to adjust the oscillation speed.
5. When you get the speed between 1-2 seconds,
tighten the jam nut.
6. Observe belt tracking and oscillation, and repeat
the Belt Tracking procedure on Page 24 or the Jet
Air Flow procedure on Page 23 if needed.
KEEP your hands clear of the sanding belt when
making these adjustments!
KEEP loose clothing and long hair
secured and away from moving parts.
Figure 21. Oscillation speed knob.