While replacing the 2 belts in my TPS-L2, I noticed strange behaviour in it.  I wanted to confirm I got the tension spring installed correctly in the following pictures.  In the first picture (no arrows) one can see how the mech looks like when stopped.  In the second picture, one can see how the mech looks when the play button is pressed.

The strange thing is that one can see the post (blue arrow) goes past the hole in the arm.  In fact, the arm spins all the way and touches the wheel! (red arrow).  It seems the tension spring there wants to make the entire spindle rotate counter clockwise.  One would assume you'd want the exact opposite (clock wise rotation) causing the hole in the arm to lock into that post (blue arrow) and prevent it from just free flowing + arm from hitting that wheel.

Can someone confirm how the spring in the middle is supposed to be wound, and on what posts?

Also, what is the purpose of this entire thing? I can't seem to figure it out.

Also forgot to mention.  The strange thing is, when it plays, one can hear clicks in the plastic, pause, more clicks in the mechanism.  But when one forces the post into the hole in the arm, all clicks go away.

Upon further searching, this seems to be the auto-stop mechanism.  But I can't seem to manually trigger it.

Can anyone confirm I got the spring wound correctly by looking at pic 1 above?