How to remove broken block & Tackle balance

I have a broken block & tackle balance on a single hung 23 year old aluminum window frame, non-tilting. I am trying to figure out how the old sash balance comes out. None of my windows in my house have clips, but have apparent slots on them. I have attached pictures for any helpful guidance on how to remove & repair these.

Thanks,

Tom:

I added other pictures after this one, hit the submit button to early. Here are more pictures. Do I need to put in clips at the top if my windows don't have them in order to catch the balance? The black cap on the top, does it come off? The left side is pushed up some but that spring isn't broke. The one on the right side is broke.

I watched the video, and if mine is like that, I have to go buy some clips first I guess so it can catch on the balance. I was a little confused! Thanks for any pointers!

David

Thanks, got them out and replaced. Just needed the clips. The rivet holding the spring broke, the plastic guide at bottom was broke also. Works like brand new now and window really seals nice. Thanks for the information.