My scores were creeping up on Abra these past few months (and not because of my ever-increasing pinball skills). The 1000 point pops were staying on waaay too long. Traced it down to an armature issue on the “I” Target Bank Spot Relay (an AS style relay with an additional 1 : 1 cam).
I took it apart and cleaned it this week and, when putting it back together, noticed that the armature had too long of a travel due to the relay coil pole mushrooming. This increasingly caused the drive pawl to travel TWO teeth on the ratchet spindle, skipping ahead two positions and leaving the 1000 point pops active. Correct operation in a 5 ball game turns off the 1000 point pops after a 1000 point pop hit. Now, no more machine gun 1000’s, sigh… I’m back to the time honored technique of running up the bonus and sniping at the lit spot targets.
Incidentally, Pinball Resource has a great tech note “Gottlieb AS Style Relay Adjustment” in their AS relay parts section. It gives all the tolerances and alignment instructions for correct operation.
I suppose I should also confess that I haven’t gotten around to ordering a new relay coil yet, I just raised the existing mushroomed coil with a piece of fish paper (a washer was too thick) so the armature now travels the specified tooth and a half on the ratchet spindle. I know, it’s a bit of a LEP man fix, maybe this post belongs in that thread.
Also, some obligatory AS relay porn (dirty):
Spot_relay (resized).jpg