When I get a new to me Featherweight or any machine for that matter I:
>Look it over good to see if anything is missing and it's safe to plug in.
>Thread it and see if it will sew.
>If it sews then like Charlee, I oil everything that moves. And then sew with it some more.
>Start the cleaning process "IF" I think it needs it. Some machines are clean enough to use when you get them, others are not.
>I firmly believe in the "If it ain't broke, don't fix it" motto.
Joe