Dan, on page 5, post #48 and #50 you can see the quill and housing disassembled. I think you should be able to get some kind of penetrating oil in several areas if you have the handle plate removed and through the slot in front for the stop. As well as from the top and bottom.
Soak it good and be careful not to damage anything. It will be almost impossible to find parts.
Good luck with it.
Soak it good and be careful not to damage anything. It will be almost impossible to find parts.
Good luck with it.