PINBALLS: Every three to four years for re-rubbering, cleaning,
adjusting, and replacing worn parts and lights.
JUKEBOXES: Vintage type should be lubed every three to
four years with moderate play. Modern ones, every four to five years.
SLOT MACHINES: Antique type should be lubed every two to
three years. Modern type, on an as needed basis.
VIDEO GAMES: On an as needed basis.