If you over-tighten the bolts on modern pinball legs, you can strip both the bolts and the assembly you screw into, making it a real pain to firmly attach legs. I go over the process of replacing the inner plate to fix stripped pinball leg assemblies.
Here are two videos of me completely rebuilding the flippers and flipper assembly on a Gottlieb System 3 pinball machine (Waterworld) – many of this information will basically pertain to most flipper systems on other machines like Bally and WMS, Stern, etc. I go through the whole process of replacing all the major wear parts on the flipper assembly even including the base plate and end-of-stroke switches.
Here’s part 2 (sorry I rarely edit these videos so sometimes my camera breaks it into separate files)
If the above is too slow, check out this time-lapse of rebuilding the flipper:
Here’s a short video showing the removal and maintenance on a drop target bank from a Gottlieb System 3 pinball machine – Waterworld.
Here’s a video I made awhile back that I don’t see linked on my main site so I thought i’d include it. It’s a short video on how to diagnose problems with score reel switches when you turn the game on and the score reels just seem to spin forever and not reset/start the game.
It seems like a no-brainer, but I’m regularly reminded of the importance of taking time to survey the playfield of pinball machines. In this video I go into why it’s important and how catching a minor issue early, can stop more annoying problems later.