Ray,
That is very interesting. I was wondering how you were supposed to turn the adjuster with no slot or hex, only the "nipple" , apparently left over when the adjuster sheared off of my bolt years ago. This answers that question. Maybe Admiral Rick will get back to us soon with the spec from the book. Meanwhile, could you show the broken off view of that bolt? It looks like it was designed to break off if you torqued it too much. Mine was loose enough so that I could turn it in with a screwdriver on the flats of the locknut. Don't think I got it locked down too tight, though.

PETE