Hey plong, I used metho on a toothbrush to clean all of the dust and grime. etc off first. then i used. autosol metal polish with a different toothbrush on the plated parts. third step i use novus no2 on the copper with another toothbrush. it has given me a great result. Whoever owned this machine before me had greased all of the moving parts and caused a few problems. you shouldnt use any lubricants on these at all.