6.Remove and clean the gibs and clean inside the cutterhead slot to remove all pitch or saw- dust. Coat the knives and gibs with a metal protectant (Page 28), then fit the gibs back in the cutterhead with the new knives.

7.Adjusting the knife heights:

Jack Screws: Using a 3mm hex wrench, find the jack screws through the access holes in the cutterhead (Figure 49) 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 5–7with the rest of the knives.

Jack Screw

Access Hole

Figure 49. Jack screw access hole.

Springs: Push the knife down with the straightedge or middle pad of the knife set- ting 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 5–7with the rest of the knives.

G0604 6" X 56" Jointer

8.Rotate the cutterhead to the first knife you started with. Slightly tighten all the gib bolts, starting in the middle and working your way to the ends by alternating left and right (Figure 50). Repeat this step on the rest of the knives.

312

Figure 50. Gib bolt tightening sequence.

9.Repeat Step 8.

10.Repeat Step 8, but final tighten each gib bolt.

11.If you used the straightedge to set the knife heights, skip to the next step.

If you used the knife setting jig to set the knife heights, use the straightedge to adjust the outfeed table height evenly with the knives at top dead center (the highest point in their rotation).

12.Replace the cutterhead guard and the belt guard.

-35-

Page 37
Image 37
Grizzly G0604 owner manual