This ended up being the solution. I got some PB Blaster but didn't use it because the fumes are strong; made me nervous that the smell would never go away. I used an unsharpened pencil and a small hammer to tap it out, and it took some pretty sharp strikes to get it going. Anyway, it's a moot point because when I then turned my attention to the drag I found that the press plate and main drive gear drag surfaces were pitted beyond help; I'm sending this piece of crap back to the seller with a note to adjust his definitions a bit, specifically "near mint" and "mechanically perfect". Missing a spring washer too! I could buy a new one but I liked the idea of buying something NOT made in China for a change.
Oh well... thanks to everyone for your input; I appreciate the help.