|Bally Play-More Post|
Several Bally late EM and early solid-state pinball machines have the Play-More Post feature. This is a device that has an orange plastic post between the flippers that will pop up when activiate, allowing you to save the ball from going down. This is a pretty clever mechanism and often I get questions on how they work or how to repair them. All this information is based on my Bobby Orr's Power Play machine, but I assume the other machines that use it are similar, but the wire colors may be different.
First off, here's a picture of the assembly:
Click on the image to see a bigger view
When it's time for the post to return to the down position, power is applied to the solenoid coil which pulls the post back down, allowing the flag to engage back into the nylon latch armature. Again, only momentary power is required to pull the post back down. The beauty of this design is that no constant power is required to maintain the post in either position.
The "UP" position height is not adjustable. When the post is released, the "E"-ring on the post shaft stops the upward travel when it hits the underside of the mounting bracket. To adjust the height when the post is in the down position, you have to loosen the nut just above the nylon latch armature, then screw the post shaft in or out in order to get the down post in the proper position. You want to adjust it so it's as level with the top side of the playfield as possible. Once properly adjusted, hold the post tight in your hand and then tighten the nut back down. Here's a photo of the post in the up position showing the parts I just talked about.
Finally, here's a copy of the post assembly from the Bally Parts Manual, showing all the parts and their corresponding part numbers.
All content posted on this page, unless otherwise noted, is the
exclusive property of Steve Kulpa
and may not be borrowed, copied, downloaded, reproduced, or pilfered in any way with out prior permission