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To adjust the infeed roll:
1. Place a bed and feed roll gauge (accessory
#2230002) under a knife in the cutterhead and raise the
table until the gauge contacts the knife at the apex of its
curve. See Figure 10.
NOTE: If a bed and feed roll gauge is not available, use
a finished block of wood with notches cut out for the
table rolls, and a feeler gauge. See Figure 11 for an
example of a wood block used for a gauge.
2. Move the gauge to the extreme left side of the
infeed roll and check the measurement. It should be
1/16" below the knife measurement. It if is not, correct
with the adjustment screws (A) on top the side panels,
shown in Figure 12.
3. Move the gauge to the extreme opposite end of the
infeed roll and check. Make necessary adjustments.
It is important that the setting on both sides of the infeed
roll be the same height to help avoid skewing of the
material as it is fed through the machine.
CHIPBREAKER
The chipbreaker is a sectionalized type made of 1" side
spring-loaded sections mounted on a bar which swings
concentric with the cutterhead. The functions of the
chipbreaker are to break chips into small pieces, help
avoid splintering of the wood, help avoid board bounce
on thinner boards, to direct the flow of chips out of the
machine, and to permit multiple board surfacing.
The chipbreaker in its free position should be 1/32"
(.8mm) below the cutting arc of the knives.
CAUTION: A chipbreaker set too low may
prevent stock from feeding into the machine.
Using the same method as indicated for the infeed roll,
adjust the chipbreaker free position using a bed and
feed roll gauge and adjust the screws (B) in the pivot
arm at each end if necessary. See Figure 12. It is
important that each end be the same height to help
avoid skewing of the material as it is fed through the
machine.
NOTE: If the infeed roll setting is altered, the
chipbreaker must be re-adjusted.
PRESSURE BAR
Most planing problems can be traced to improper setting
of the pressure bar. Its function is to hold down the
material after it passes under the cutterhead and
throughout the remainder of the cut. Its basic setting is
to be in line with the arc of the cutterhead knives.