Hi,
My double hung window is not staying up. It looks like one of the coils may have snapped. I wanted to make sure I'm ordering correct replacement parts.
The window sash weighs about 25 lbs.
From what I can see on the coil - it has number 7 imprint on it.
My other question is do I have to use the tandem or can I just use one pivot housing with coils attached. I have to make the cutouts to remove them and its proving to be rather difficult.
Thanks!
Broken coil replacement
Quick Learner from Cambridge, Mass
Oct 29, 2024 4:44 pm
2 user uploaded images
4 Replies
Casey from SWISCO
Nov 1, 2024 11:49 am
Hello,
We can't be sure with the hardware still installed but your photos resemble the 15-087 housing pivot, which uses the Series 180 coil springs. For a 25-pound sash, you can use one S180-07 and S180-06 on each side. Note that the 15-086 tandem housing is required for the second coil. Take a look and compare the specifications below and the accessories related on our product pages to yours. Thanks for posting!
Detail of 15-087
Series 180 coil balance diagram
Quick Learner from Cambridge, Mass
Nov 1, 2024 12:28 pm
Thank you for your response.
Does it mean that there should be 1 coil inside 15-087 and 1 coil inside 15-086 when assembling? My current set up has 2 uncovered coils on top of pivot housing and tandem. I don't think there were any inside when I removed one set of them. Unless they're using more than 2 coils per side.
Does it mean that there should be 1 coil inside 15-087 and 1 coil inside 15-086 when assembling? My current set up has 2 uncovered coils on top of pivot housing and tandem. I don't think there were any inside when I removed one set of them. Unless they're using more than 2 coils per side.
Casey from SWISCO
Nov 1, 2024 1:23 pm
Yes, each coil should be inside of a cover. It's possible that some of your springs may have been installed without them for some reason or they may have broken over time.
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