From memory, the body of the PAS simply screwed into the RA axis, so there was nothing to adjust there on the Vixen mount. The 3 grub screws that hold and adjust the PAS reticule are towards the eyepiece end of the PAS, flush with the PAS body.
I think I came undone because I tweaked one of these grub screws mistakenly, loosening the reticule which then slipped out and became loose (rattled) in the PAS body.
I think I had to unscrew the eyepiece of the PAS to relocate the reticule between the grub screws, then assemble the PAS and do the reticule alignment as per the scanned instructions.
Cheers
Dennis
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