Cleaning a old tonearm


Hi, A friend gave me an old Grace 727 tonearm and it is very dusty and dirty from sitting out in the open. My question is how and what should I use to clean it. I do not want to mess with dissasembleing the bearings. The dust seems to stuck to it and will need some type of cleaner. Or is this a lost cuase? Thanks in advance.
motorpsychos
The tone arms I am familiar with are painted, anodized, chrome, or stainless, or some combination of these finishes. I have seen older arms with some form of crud or tarnish but I have never seen one with possible signs of rust. Perhaps I just don't get around enough.

To me, lubricants are for protection of bearing surfaces. For the application of protecting tonearm finishes, other solutions will serve better. YMMV.
I just used a pipecleaner to clean my vpi arm. slow, gentle wipes and the dirt came off incrediible easy. Just a gentle 'blow'....