I do not have an Bally pin. I look at the picture in Your post-6. On a Williams Replay-counter I would say "maladjusted". See my Williams Shangri La Replay Counter )JPG) - it has about five Credits on the Counter. Stepping up is turning clockwise. When stepping down 5, 4, 3, 2, 1 and now down to Zero: The rod marked "red" opens a switch - I cannot use the Credit-Button anymore to start a new game - the switch is in the wiring and the switch is open.
Coining up steps clockwise - the "marked blue" rod comes closer and closer and closer and then opens the MAX-Switch - this switch opened hinders current to flow to the Step-UP Coil (The Maximum is electrically controlled - it is not mechanically controlled). Not visible in my JPG (because I put the blue dot on the end of the rod in the picture) - the rod has a slot for an screwdriver to take the rod out --- several drilled holes to set MAX to maybe 10 or 15 or 20 or 25 or 37. In Your picture in the red circle I see the rod and its slot. - Take it out and set to maybe 10 or 15 MAX.
Maybe the spring wound around the axis (marked green in my JPG) - maybe in Your pin the spring is too tight --- unhook and let go about one or two wounds / turns / revolutions. Greetings Rolf