Using magnetic knife setting jig on Delta 22-650
I realize I'm almost 3 years late coming to this discussion, but I just ran across it while surfing for info on my very old (Dec 1981) Rockwell/Invicta planer, which, by the way, is the best planer I have ever owned. In answer to the query about using a magnetic knife setting jig, yes it is possible. First remove the chip deflector (masonite plate just downstream from the cutterhead). This gains you only about 1/4 inch, but helps. Then, Loosen the set screw that holds the chipbreaker adjusting rod. Back it out quite a ways, as it goes into a dimple in the rod. Loosen the rod (may need pliers), until you can slide it out on the right side of the planer. Then loosen and remove the hex screws that hold down the chip breaker springs. Now you can prop up the chip breaker high enough that the magnets on the knife setting jig can slide under it. It's not that hard to do, and only takes a few minutes. When you put back the adjusting rod, be sure the dimple lines up so the set screw can hold it in securely. BTW, I am currently trying to line up a Byrd Shellix cutterhead for the planer. Byrd has them for at least some of these planers, but I'm not sure yet about one that is over 30 years old.