Non Tilting Double Hung Repair
Hello,
The fitting at the end of the pulley cord reminds me of the 15-159 Malta pivot shoe at first glance. Take a look and compare the specifications below to an undamaged version. Thank you!
These balance parts are used in tilt windows, meaning that you would disengage the tilt latches on the top corners of the sash to tilt the top toward you and carefully disengage the bottom pivot bars by rotating the sash. See another customer's thread here, as well as the guides related on this page to assist you.
We can't be sure without being there to troubleshoot the problem but I agree that you may have a type of tilt window that functions without latches. If so, you may need to pull the top of the sash toward you to disengage the bottom pivots. This would be similar to the way that other tilt windows function but without the need for tilt latches.