I will watch out for loose screws (not the ones in my head!).
Good news is that the machine is unstuck and stitching all the stitches with the built in cams near as I can tell. I only have one "top hat" cam, and haven't tried that yet.
Now my question concerns the cam stack. It is very dirty. Is there a way to clean it up or just leave it be? Based on Miriam's advice, I don't want to try and take it apart. I am still way too much of a novice.
And another question regarding the grease in the gears. How much is enough? Too much? I put in a dab about the size of a pea and then worked it in. Is that enough?
And a question regarding FMQ. I know the feed dogs don't drop, but I'm thinking just set the stitch length to zero, like I do on my dinky mechanical Brother, and if I glue baste, there won't be any pins or threads to get in the way. Advice??
Thanks again everyone for your wonderful support.