35
35
Snipe
Some amount of snipe may be inevitable with many
planer operations, but proper planer adjustments can
so minimize snipe as to make it negligible.
If noticeable snipes appear on each end of the
material, a table roller is too high causing a slight lift of the material as it passes through the
machine. Normally these snipes are more noticeable on the trailing end of the board than on
the lead end, and most often occur during planing of rough lumber.
Table rollers must be elevated for running rough or resaw lumber through the machine. When
material is turned over to surface the other side, and you neglect to lower the table rollers for
a finish cut, then definite snipes will appear on the ends of the material.
Tapers
If the machine planes a taper across the full width
of the board, the table is not parallel with the
cutterhead. First check that all knife inserts are
properly installed. If they are, then the table itself must
be adjusted.
See “SETUP OF FEED ROLLERS, CHIP
BREAKER AND PRESSURE BA
R”.
Twisting
If material twists while feeding through the planer, either the table rollers, pressure bar, or
outfeed roller may be out of level.
See “SETUP OF FEED ROLLERS, CHIP BREAKER AND
PRESSURE BA
R”.
Halted Feeding
If the in-feed roll takes stock away from you while feeding, then feeding stops before contacting
the knives, the chipbreaker is probably too low. Or the in-feed roller is not set low enough, or
does not have enough pressure. In a similar situation, the in-feed roll takes the stock, the chip-
breakers lift, and stops as you hear the knives contact the material. In this case the pressure bar
is too low. See “SETUP OF FEED ROLLERS, CHIP BREAKER AND PRESSURE BAR”.
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Страница 42: ...39 39 6 Loosen Nut on motor bracket 7 Remove belt 8 Remove cutterhead pulley...
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