KNOVA KN CM-20W3 Manual Del Usuario página 7

ADJUSTMENTS
Figure 16
Cutterhead Adjustment
Overview
Although your planer was carefully adjusted at the factory, it
should be checked before being put into operation. Any
inaccuracies due to rough handling in transit can easily be
corrected by following these directions.
To check the adjustments you will need a straight edge, feeler
gauge, and a home made gauge block made of hardwood.
This gauge block can be made by following the dimensions
shown in Figure 17
2"
51 mm
Knife Adjustment
When checking or adjusting the cutterhead knives,
proceed as follows:
1. Disconnect machine from power source.
2. Remove the six screws (A, Fig. 18) and remove upper cover
(B, Fig. 18).
3. To check and adjust knives, use the provided knife gauge
(Fig. 19 & 20) and check all four knives. Knives should just
contact the bottom of the center protrusion (D, Fig. 19)
of the knife gauge.
45º
5"
127 mm
3"
1/4"
76 mm
6.4 mm
3/4"
19 mm
4-1/2"
114 mm
6"
152 mm
Figure 17
A
4. If an adjustment to one or more of the knives is necessary,
slightly loosen the knife gib (E, Fig. 19) by turning the six
locking screws (F, Fig. 19) into the gib. Turn the screws just
enough to relieve stress in the cutterhead without
disturbing the setting of the knives. Do this for all four
knives at the same time.
5. With the gauge in place over a knife (G, Fig. 19) continue
to loosen the locking screws (F, Fig. 19) until the springs
(H, Fig. 19) begin raising the knife. When knife comes into
contact with the center protrusion (D, Fig. 19) of the
gauge, snug up the gib by lightly backing out the six
locking screws (F, Fig. 19) against the slot.
NOTE: At this time, only
tighten the knife in the slot
just enough to hold knife
in position.
6. If additional knives must be
reset, repeat step 5.
7. After all four knives are set
with screws just snug, back
out and tighten the six
locking screws
(F, Fig. 19 & 20), against
the slot starting with
the end screws first,
then the center
screws, until the
knife is securely
held in the
cutterhead. Tighten
remaining three
knives in the same
manner.
Important: Double check
all screws for tightness.
Replacing & Resetting Knives
If the knives are removed for sharpening, care must be
exercise in replacing and resetting them. Proceed as follows:
1. Disconnect machine from power source.
2. Remove six screws and upper cover (see Fig. 18).
3. To remove knife, loosen the gib (E, Fig. 19) by turning the
six locking screws (F, Fig. 19) into the gib. Remove gib
(E, Fig. 19), knife (G, Fig. 19) and springs (H, Fig. 19).
NOTE: The inner two springs may pop out when the knife
and gib are removed.
6
B
Figure 18
Figure 19