Knife adjustment – Woodstock W1683 User Manual
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Figure 17. Understanding cutterhead assembly.
Knife Adjustment
The Model W1683 is equipped with both springs
and jack screws for knife adjustment. These two
options have been provided for operator
preference. Both types have advantages and
disadvantages. Springs allow adjustments to be
made quickly, while jack screws are more
accurate. The following instructions offer
suggestions for both methods, followed by the
procedures for tightening the gib bolts.
Springs under the knives exert upward pressure
while wedge-type gibs and gib bolts lock the
knives in place. See Figure 17 for cutterhead
assembly identification.
To adjust the knives using the springs:
1.
Unplug the machine from the power
source!
2.
Lower the jack screws completely to get
them out of the way. Loosen the gib bolts so
the knife will move upward from the
pressure of the springs.
3.
Place the knife setting jig on the cutterhead
so both feet sit solidly on the cutterhead
and so that the center of the jig pushes
down on the knife (similar to Figure 16).
Make sure equal pressure is placed on both
ends of the jig and that the jig is parallel
with the cutterhead.
4.
Tighten the knives by following “tightening”
instructions on the next page.
Jack Screws
support the knives from
underneath. By threading the jack screws in or
out, you can precisely control the knife height.
To adjust the knives using the jack screws:
1.
Unplug the machine from the power
source!
2.
Loosen the gib bolts and remove the gib and
knives. Remove all of the springs and place
them in a plastic bag. Tape the bag to the
inside of the cabinet so they do not get lost.
3.
Place the knives, gibs, and gib bolts back in
the cutterhead as they were before
removal. Make sure the knives are resting on
the jack screws when you install them.
4.
Place the knife setting jig on the cutterhead
so both feet sit solidly on the body of the
cutterhead. If the knife does not allow the
jig to sit on the cutterhead evenly, raise or
lower the knife with the jack screws to
adjust as needed.
5.
Tighten the knives by following the
“tightening” instructions on the next page.