I’ve got this old SCM F4L 16” jointer and looking to set the knives on the cutter head. My only experience with a jointer or planer cuttterhead is the hobbyist type Dewalt 13” planers.
The gib screws can back out all the way and I can slide the gib a little, but can’t figure out how the knives are released. No manual for this old machine.
The s63 planer has the same style.
I attached some pics to help illustrate. Anyone have some wisdom they can share?