Anti-Kickback Fingers; Infeed And Outfeed Roller Spring Tension; Height Of Infeed Roller, Chipbreaker, Pressure Bar And Outfeed Roller - Powermatic 209-1 Operating Instructions And Parts Manual

Anti-Kickback Fingers

The anti-kickback fingers (A, Figure 23) are an
important safety feature, as they help prevent
kickback of stock. They operate by gravity and
should be inspected frequently to make sure
they are free of gum and pitch, so that they
move independently and operate correctly.
Infeed and Outfeed Roller Spring
Tension
The infeed roller (B, Figure 23) and outfeed
roller (F, Figure 23) are those parts of your
planer that feed the stock while it is being
planed. The infeed roller and the outfeed roller
are under spring tension and this tension must
be sufficient to feed the stock uniformly through
the planer without slipping but should not be so
tight that it causes damage to the board. The
tension should be equal at both ends of each
roller. Note: Contact Powermatic Technical
Service before attempting any adjustments to
spring tension.
Height of Infeed Roller, Chipbreaker,
Pressure Bar and Outfeed Roller
The infeed roller, chipbreaker, pressure bar and
outfeed roller are adjusted at the factory. The
height relationship between these items and the
cutterhead is crucial for accurate and safe
planing. The infeed roller and outfeed roller
should be set 0.032" (0.81mm) below the arc of
the knives. The pressure bar is set 0.006" to
0.008" above the arc of the knives. The
chipbreaker is set even with the knife arc. See
Figure 25.
If any adjustments are necessary for the infeed
roller, chipbreaker, pressure bar or outfeed
roller, they should be done carefully. Use the
following steps as an example of procedure.
NOTE: This procedure uses a home-made
gauge block and feeler gauges, which should be
sufficient for most planer operations. If extra
precise measurements are desired, however,
use a dial indicator device.
Figure 24
Figure 25
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