I've personally never seen inside of a Chicago Coin. How does it compare in build quality compared to Gottlieb, Williams and Bally?
I have not really got into the internals of the machine yet as I have been focusing on the cosmetics and not the mechanics for the most part but from what I see so far it is is set up mainly like a Williams machine but has a bit of Gottlieb as well. I have never owned a Bally (yet) and will not try a comparison for that reason.
The Score Motor is set up like a Gottlieb in looks and function, but uses Nylon gears instead of metal ones like a Williams. The weird thing is that the Switches on the Motor have a bend to them as you can see in the photo and I'm not sure what benefit that brings except maybe more of a spring action when they are actuated. These Score Motors are prone to breaking where the gears attach to the Motor shaft but are repairable when this happens as the Nylon that goes around the shaft of the motor sometimes cracks. The repair has been documented on PinWiki.
The Relay Banks are very similar to Williams and are just as serviceable if not more which I really like as opposed to Gottlieb Relays which can be a pain such as the AX, BX, and Game Over Relays as their Make-Break Switches are the worse and usually are the cause of most switch problems for machines that use these.
I have a lot of Williams machines and to date I have never had a problem with any of their Make-Break switches, so Chicago Coin should be a pleasure in that respect as well.
There is also a photo of the back side of the Drop Target Bank which looks a tad rusty, but very robust and built for the long haul.
Interesting with the Knocker, Tilt Plumb Bob, and Internal short Tilt Roller Ball being located next to one another.
Most folks say that Chicago Coin machines are easy to repair and dependable and by just looking at my machine I would have to agree. Some say there are issues with the PCB's on the Score Wheels but I have been told I have the better ones, so I see no problem there but the only concern I would have down the line would be a possible issue with the Score Motor, but hey, it's repairable.
score_motor.JPG relay_bank.JPG drop_targets_back.JPG close_up_relays.JPG tilt-knocker.JPG