Quoted from Deez:On barn find EMs, a great way to save time is to not dissemble and clean the steppers and relays, but to simply spray everything down in a heavy coat of contact cleaner. Make sure to power the game back up while it it still moist for the most effective cleaning.
OK, I will admit as a 16 year old kid I took this exact advice on everything on the back door of a 70's Williams/United puck bowler. When I plugged it in I touched some of the Zep contact cleaner. 110 volts and me on my ass, I decided never to do that again!
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