Grizzly G0452 Owner's Manual page 47

The G0452/P Jointer uses jack screws for
cutterhead knife height adjustments (see Figure
67).
Figure 67. Cutterhead profile diagram.
To set the knives:
1.
DISCONNECT JOINTER FROM POWER!
2.
Remove the cutterhead guard from the table
and lower the infeed and outfeed tables as
far as they go. This will give you unrestricted
access to the cutterhead.
3.
Remove the cabinet cover to expose the V-
belt.
4.
Use the V-belt to rotate the cutterhead to
access the cutterhead knives.
5. Loosen the cutterhead gib bolts, starting in
the middle, and alternating back and forth
until all of the gib bolts are loose, but not fall-
ing out.
6. Position the knife gauge over the knife as
shown in Figure 66 and loosen the gib bolts
until the knife is completely loose.
Model G0452/P/Z (Mfg. Since 08/12)
7.
Using a 3mm hex wrench, access the jack
screws through the holes in the cutterhead
(Figure 68) and rotate the jack screws to
raise or lower the knife. When the knife is set
correctly, it will barely touch the middle pad of
the knife setting jig. Snug the gib bolts tight
enough to just hold the knife in place. Repeat
Steps 5-7 with the rest of the knives.
Figure 68. Jack screw access hole.
8. Rotate the cutterhead to the first knife you
started with. Slightly tighten all the gib bolts,
starting at the ends and working your way
to the middle by alternating left and right.
Repeat this step on the rest of the knives.
9. Final tighten each gib bolt.
10. Adjust the outfeed table to match the new
knife heights.
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