Constant force coil is broken

Quick Learner from Raleigh NC

Dec 6, 2020 5:17 pm

Hi,

I have several windows in which the all constant force springs are broken. The windows are tilIt double glass about 30x28 inches and there only seems to be a single coil per side. Unfortunately I can't find any markings to indicate how many pounds the coil should balance.

Can you recommend coil spring replacements?

Thanks
Bill

4 user uploaded images

3 Replies

Quick Learner from Raleigh NC

Dec 8, 2020 7:26 pm

Follow-up info:
the window weighs about 17lbs and I think the coil has the number 8 stamped on it. So I'm thinking I need some 8lb coil spring replacements.

Casey from SWISCO

Dec 9, 2020 10:25 am

Hello,

Take a look at our 15-180 balance shoe, which holds the S190 balance shoe. I agree that one S190-840 coil on each side of the window would support the weight of your sash. Thanks for posting!