Gosh. I’m really messing this up, and I have to learn removal and placement of modern shaft adaptors. . I am destroying adaptors, and have got to practice. I can easily take the adaptor off, but the black plastic is simply melted completely. For me, it’s impossible to place the adaptor back on. Do you buy a new one? How much glue to put it on a new shaft.
im so scared of this process I’ve avoided it.  But have to learn now.  Many thanks to the gang on the Maltby forum.

Bill

Answered question