Re: How to disassamble Jabsco quiet flush macerator pump?
You have the manual, too? When I rebuilt one, there weren't any issues that I remember. It was pretty straightforward, IIRC.
OTOH, after doing that, I then still found it easier/better to just replace the whole thing. Our original had become pretty loud, this at about 8 years old or so... and a new pump/motor assembly made it "quiet" again. 15-minute replacement, not much "yuk!" involved.
Selby Bay, South River, Chesapeake Bay, USA.