Casey from SWISCO responded:
March 18, 2021
Hello, I can't say for sure with your hardware still in the window but I suspect you might be using our 15-087 housing pivot, which uses the S180 coil springs. Take a look and compare the specifications of these parts, as well as the related items on both product pages, to your hardware once it's removed from the window. We'll relate a few videos to assist you. Thanks for posting! |