[MrFixr55]

Hi Oldie.

The "Jesus" clip is the circlip that holds the outer shaft in. People call them Jesus clips because when they shoot off into a parallel dimension one says "Oh Jesus". I don't like to take God's name in vain, but I am not above using "salty" language, so I call them oh$#!^ clips, because that is what I say when they spring off. Whatever nomenclature that you use, this is the "C" shaped clip that snaps behind the gear on the outer shaft.

The mechanism that Klondike indicates may be different externally from yours, but the innards should be similar. I believe that the inner shaft is held in by the 3 balls. The outer shaft acts as a "race". The balls are sandwiched between the "cup" of the mounting body and the tapered area of the inner "vernier" shaft. If the end of the shaft or the cup of the mounting body is too worn, this may be why the shaft is popping out. Try slightly larger ball bearings. You may have to slightly enlarge the 3 holes in the "coarse tuning " shaft.