The Pivot shoe is very hard to move up and down, even with the window removed so I'm guessing it's not structural problem with the wall. I didn't disconnect the spiral balance from the shoe and don't know if the problem is debris in the tube or around the shoe. I didn't see any cutouts to remove the shoe and I'm afraid to cut one or force the channel open. The tube is 24" long, 9/16" in diameter and has a red end.
Any advice would be greatly appreciated.
Thanks,
Frank