I may be out in left field when I add this because I haven't tried it on my machines yet, but was considering it on one. Has anyone used naval jelly for removing rust? I've used it on other iron products (mostly on the cars) with decent results, but not on my "house pets".
I have used SOS pads on the hand wheels. It takes off the rust, but if the metal is pitted, that will remain unsightly. I figured it was like a human wrinkle -- a mark of character.
Kay