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W1755 6" Parallelogram Jointer
7. Adjusting the knife heights:
Jack Screws: Using a 3mm hex wrench, find the jack
screws through the access holes in the cutterhead
(Figure 48) and rotate the jack screws to raise or
lower the knife. When the knife is set correctly, it
will barely touch the bottom of the straightedge or
the knife setting jig middle pad. Snug the gib bolts
tight enough to just hold the knife in place. Repeat
on the other side of the cutterhead, then repeat
Steps 5–7 with the rest of the knives.
Springs: Push the knife down with the straightedge
or middle pad of the knife setting jig, keeping the
straightedge flat against the outfeed table or the
knife setting jig feet evenly against the cutterhead.
Tighten the gib bolts just tight enough to hold the
knife in place. Repeat on the other side of the
cutterhead, then repeat Steps 5–7 with the rest of
the knives.
8. Rotate the cutterhead to the first knife you started
with. Slightly tighten all the gib bolts, starting at the
middle and working your way to the ends by alter-
nating left and right (Figure 49). Repeat this step on
the remaining knives.
9. Repeat Step 8.
10. Repeat Step 8, but final tighten each gib bolt.
11. If you used the knife setting jig to set the knife
heights, use a straightedge to adjust the outfeed
table height evenly with the knives at top dead cen-
ter (refer to Setting Outfeed Table Height on Page
35). If you used the straightedge to set the knife
heights, skip to the next step.
12. Replace the cutterhead guard and the close the back
cover.
Jack Screw
Access Hole
Figure 48. Jack screw access hole.
3
Figure 49. Gib bolt tightening sequence.
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