KNOVA KN CM-15W3 Manual page 8

ADjUSTMENTS
Adjusting Work Table Parallel to Cutterhead
(Major Adjustment)
If the work table is not parallel to the cutterhead, perform
the adjustment procedure as follows:
1. Disconnect machine from power source.
2. Remove bolts holding the planer to the stand. Carefully tilt
planer on its side to expose underside of base (Figure 20).
3. Remove bolt (A, Figure 20) and loosen bolt (B, Figure 20)
which will allow you to move the idler sprocket assembly
(C, Figure 20) far enough to release tension on the chain.
4. Remove the chain from the particular sprocket on the
corner of the base that you need to adjust.
5. Turn the sprocket by hand to bring that corner into
adjustment with the other three corners. NOTE: Turning
sprocket clockwise will increase the distance between the
working table and the head casting; counterclockwise will
decrease the distance. This adjustment is very sensitive
and it should not be necessary to turn the sprocket more
than one or two teeth.
6. When adjustments are correct, replace chain around corner
sprocket, slide idler sprocket (C-Figure 20) back to
re-tension chain, tighten bolt (B, Figure 20) and insert and
tighten bolt (A, Figure 20).
Know the Transmitting Rollers of Your Planer (Figure 21)
A. Anti-kickback fingers
B. Infeed roller
C. Chip breaker
D. Cutter head
E. Outfeed roller
Anti-Kickback Fingers
The anti-kickback fingers (A, Figure 21) 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.
Slide sprocket
to release tension
Feed
Infeed and Outfeed Roller Spring Tension
The infeed roller (B, Figure 21) and outfeed roller
(E, Figure 21) are those parts of your planer that feed
the stock while it is being planed.
The infeed and outfeed rollers 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.
To adjust the spring tension of the infeed and outfeed rollers,
turn screws (Figure 22) with a hex wrench. A clockwise turn
increases tension on the pressure spring. See Figure 23. A
counterclockwise turn decreases tension. Adjust the screws
at the other end of the rollers with the same number of turns.
Spring tension
adjustment screws
Figure 20
Pressure setscrew
Pressure spring
7
Roller
Check nut
Height setscrew
Figure 21
Figure 22
Figure 23