Originally Posted by
Rodney
What Joe said. Your machine looks good in the pics. You don't need anything more than oil to get it clean.
NophaDesertRat, the brown crud may have been the shellac clearcoat lifting off. The shellac gets pretty fragile with age and anything harsher than sewing machine oil can damage it. I'm not familiar with newer Goop products but IIRC the old hand cleaner had pumice in it. Avoid any abrasive cleaners as well.
Rodney
at least in the ones I've come across, there doesn't appear to be a clear shellac or lacquer top coat. I have just used a foaming spray clenser. I haven't used oil, because i fear it will just build up with dust and create another layer of gook.