All of the required actions seem to work. The issue is that the Ball Count Unit resets but does not go to Ball 1. I think that it might be the "A" relay. This relay and the "A" Reset relay are both not energizer before the start button is depressed. When started, the "A" tries to pull in but just chatters and doesn't move enough to lock with the reset armature. (Bad coil?)

The Operating Instructions discuss this but the question is the state of the A relay before the star sequence is started. All six contacts are opposite in the schematic to what is actually the state when power is off. The switch that feeds the Add Ball Count Unit shows closed but is open with no power. I think my confusion is how both of the "A" relays interact and the "A" coil..

Thanks for the tips. Yes, the Ball Count cycles as you indicated. Great! But the "A" relay is still an issue. I have to push the armature by hand to get it latched on. It still chatters and will not travel the full length to lock in place.

Any suggestions on this?

Both coils are A-3891 # 29 and are 16.3-16.6 ohms out of the circuit. Unlike other relay coils they do pull in but chatter; the reset coil less than the switch coil. My guess is the switch coil stays in because it's a constant voltage while the short normal pulse doesn't pull all the way in and thus the bad contact and chatter.

Any ideas?

I have a short video but there doesn't seem to be a way to attached it but I have attached a static picture for what it's worth.

The armature is lose on its pivot point and the spring provides some tension. This all look correct but gives the armature some leeway. Maybe the coils are not original or too weak?

A Relay (resized).jpg

I got it to work. Do I know more than the collective knowledge of the forum. No! I just adjusted the position of the coils, made the switch contacts closer together, cleaned them all, tested everything with no power, and it just worked. Thank to all who posted help; I couldn't work this EM machine without the help of the forum.

I'm still having issues with the "A" relay on start-up. I believe the schematic is drawn with the power off. (The Hold relay is drawn with power off as off; the relay lock switch is open so there is no power to the coil.) The issue is that the four "A" contacts that reset the score reels are closed without power but the schematic shows all four open.)

If I opened the four switches at power off, then they would close during the start-up sequence. This seems the way to go but would like verification before I bend all the contacts.

Further complicating this is that the "A" coil when released open fully, but if released and the "A Reset" coil energizes it opens less; thus there are three positions -- which can't be correct.

Many thanks -- it's hard to believe someone changed all the blades!