Cleaning corrosion

[Ron Nossaman]

>Well,
>I have dug into an old Kimball upright that is going to be my practice 
>piano for repairing.  A question I have is about cleaning 
>corrosion.....how?  Today I am referring to the metal frame in the 
>action.  I have completely stripped the action, and want to the clean up 
>the metal frame parts.  Somebody in the past had dabbed on with a brush as 
>far as I can tell, silver paint to hide the corrosion.  I thought an 
>electric drill with a wire brush was overkill, and would damage the wood 
>parts, a Dremel tool seems like it will hardly put a dent in the 
>job.  That leaves steel wool? Or a hand wire brush.  Thanks.
>Tom

Take out a few more screws and separate the brackets from the rails 
(mindful of any shims, and marking which goes where for re-assembly). Then 
sandblast and paint. Re-assemble with the screws loose, install in the 
piano to line everything up, and tighten the screws.

Ron N