Powermatic PM15, Operating Instructions And Parts Manual

Page: 11 / 40

11
4. If the reading on the depth of cut scale is
incorrect, loosen the two mounting screws
on the clear plastic plate and adjust
accordingly. The top scale (A, Fig. 8) is in
English units, the bottom scale (B, Fig. 8) is
metric.
5. Test the adjustment by planing a piece of
scrap lumber, and make further adjustments
as necessary.
NOTE: The table lock (C, Fig. 9) must be
tightened before operating the planer/molder.
Feed Rate
The feed rate is set by the adjustment lever on
the side of the machine. See Figure 10. Always
change feed rate WHILE THE MACHINE IS
RUNNING.
The Planer’s Feed System
(Figure 11)
1. Anti-kickback fingers
2. Infeed roller
3. Chipbreaker
4. Cutterhead
5. Outfeed
roller
Anti-Kickback Fingers
Anti-kickback fingers help prevent stock from
being thrown from the machine. These fingers
operate by gravity and should be inspected
before each day's use for pitch or gum buildup.
The fingers must operate freely and move
independently for correct operation.
Infeed Roller
The function of the infeed roller is to feed the
material into the machine. To provide proper
drive, it should be set so that the bottom of its
arc is 1/16" (1.6mm) below the arc of the
cutterhead knives. The infeed roller is 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 rubber coating on
the rolls, or damage to the boards. Adjustment
of height and spring tension should be done in
conjunction with one another as follows.
To adjust the HEIGHT of infeed roller:
1. Place a bed and feed roll gauge (accessory
#2230002), shown in Figure 12, under a
planer knife in the cutterhead and raise the
table until the gauge contacts the knife at
the apex of its curve. Set the gauge to zero.
Figure 10
Figure 11