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Ripping
Pawls and Spreader Function
The pawls and spreader must be set cor-
rectly during ripping to reduce the risk
of kickback, to prevent wrong way feed,
and to act as a partial barrier to the haz-
ardous outfeed side of the blade.
The spreader tides in the workpiece
kerf to keep it open. This reduces the
chances that the cut workpiece will
spring closed and pinch the blade.
Pinching the blade is a cause of kick-
back.
The pawls rest level on the upper sur-
face of the workpiece. During cutting
they allow the workpiece to pass freely
from the infeed to the ouffeed side, but
help stop the kickback motion from out-
feed to infeed side by grabbing into the
workpiece surface.
The spreader and pawls must be re-set
each time a different thickness
workpiece is cut. Follow the Ripping
Set-Up Procedure to correctly set the
pawls and spreader.
Hold Down Function
The hold down must be set correctly
during ripping to act as a partial barrier
against the in_feed side of the blade, and
to help keep the workpiece flat on the
table. It must be lowered and set to just
clear the workpiece.
The hold down must be re-set each time
a different thickness workpiece is cut.
Follow the Ripping Set-Up Procedure
to correctly set the hold down.
Infeed Pawls
Side
Spreader
Outfeed
Side
Ho,\
Down
Infeed Outfeed
Side Side
56
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