Tom from SWISCO responded:
May 15, 2015
I'm afraid these springs are not able to be replaced by themselves. You will need a new balance. Based on your pictures, I think our S389-27 could be what you need. You may also want the 2630 option for that, but you should weigh your sash just to confirm that this is correct.
As for replacement, watch the video below for how we recommend you do it. |