Please, I need help getting to home plate!
I have been going through and restoring my Gottlieb Grand Slam. After I cleaned the stepper unit by the chime box. I cannot seem to figure out what the correct mounting should be of the rotating disc. Is there a zero point on this stepper unit to assemble it correctly? Cant seem to find it anywhere. I can remove the 3 screws and reclock the disc and it will completely change how it scores runs, etc.
Plus, if I manually advance the disc using the coil plunger, the rivets align with the rotating studs. During game play, it only advances it half way between the studs, if I loosen the three screws and align the disc using the adjustment slots, the posts hit the rivets perfectly. Could this be a weak coil? Everything else seems to be working correctly the best I can tell. This simple stepper unit is confusing me, and I was hoping to have this restored and running correctly for my Dads 73 birthday this month!
Thank you in advance.