Coil Window spring

Home Owner from Healdsburg CA

Dec 8, 2018 3:00 am

Photos are both sides of the upper half. Is that enough to identify? Spring is 1/2" wide. I think the only numbers on it are patent numbers but here they are:
5.232.208
5.365.638
6.584.644 B2

2 user uploaded images

10 Replies

Bob from SWISCO

Dec 10, 2018 3:53 pm

Hi there, thanks for posting. Would you be able to provide a picture of the pivot shoe that the coil balance attaches to? The thickness and width of the pivot shoe would also be helpful. By identifying the pivot shoe we can in turn identify the coil balances that you need.

Home Owner from Healdsburg CA

Dec 10, 2018 11:44 pm

The bottom piece of the spring (shoe?) measures 1.25" wide, 1.5" high and 0.5" thick. I also notice 35" P and 7.5 stamped on the coil spring itself. Photo attached.

1 user uploaded image

Paul from SWISCO

Dec 12, 2018 9:47 am

Greetings. The coil spring you are looking for is our 1/2" wide S160-7 for 7.5 lbs.

Home Owner from Healdsburg CA

Dec 12, 2018 1:13 pm

Thank you. Is it recommended to replace pivot shoe or is that not necessary?

Paul from SWISCO

Dec 12, 2018 1:48 pm

No, it is not necessary to replace the pivot shoe so long as it is in good condition. You can reuse it.

Home Owner from Healdsburg CA

Apr 19, 2019 12:19 am

Hello, I have installed springs and window is not operating smoothly at all. I have weighed the window and it is approximately 15 pounds so should be the correct spring. I have carefully compared to another window and appears to be installed correctly.Any ideas?
Thanks
Kenn

Tom from SWISCO

Apr 19, 2019 7:59 am

Thanks for getting back to us, Kevin. I'm sorry to hear that you're having issues. Can you go into more detail? What exactly is happening when you open and close your window? Have you tried lubricating the track?

Home Owner from Healdsburg CA

Apr 19, 2019 4:00 pm

It lifts very in un-evenly. Requires two hands and getting it "just right" to raise (or lower).
I have not used any lubricants. In fact I have never heard that was necessary with a vinyl window. What product do you recommend?

Paul from SWISCO

Apr 22, 2019 8:01 am

Try using a silicone spray in your track to see if that smooths out the unevenness of the sash performance. This often can help, but let us know what you find.