Originally Posted by
irishrose
The first thing I'd do is lay the machine on its back and pour Koil gun cleaner around that reverse knob. Let it soak for a while and then wiggle and jiggle the area, both inside and out.
I'm with Irish Rose on this one. To me, that reverse button - which I assume is the round button - looks stuck. I worked on a Morse like that. The Kroil should free it. You may have to get it via mail. And yes, the spring could be broke.
Everyone has good ideas. Nice machine! Worth fixing, in my opinion.