REGARDLESS OF HOW YOU CLEAN A TYPING UNIT OR REPERFORATOR: GET THE LUBRICATION INSTRUCTIONS OUT AND LOOK THEM OVER. GREASE EVERYTHING THAT IS TO BE GREASED OIL EVERYTHING THAT IS SUPPOSED TO BE OILED DON'T GET OIL ON THE MAGNETS IF YOU MISS ANYTHING YOU WILL BE SORRY WHEN THE PARTS WEAR AND BRAKE. DON