Coil Spring Snapped

Home Owner from Jeffersonville Indiana

Feb 12, 2019 5:54 am

Hello. I'm sure it's due to abuse on our part (I have three boys under the age of 6), but I'm not sure how it snapped to begin with. Was it just not being mindful when cleaning the window, and putting it back in?
Anyways, these were the builder windows (single hung? I can take the bottom out, but not the top) original to the house (built around 2005). There are no markings besides what is on this sticker in the photos. If you could help me find the right spring replacement I would really appreciate it.
Thank you.
Sara

1 user uploaded image

8 Replies

Bob from SWISCO

Feb 12, 2019 9:22 am

Thanks for posting, Sara. Your pivot shoe looks like our 15-180 Coil Balance Shoe; to be safe, carefully go over the dimensions listed on the product page to make sure they match your old part. This pivot shoe is compatible with our Series 190 Coil Springs. See if there are stamps on your old springs that indicate the weight they need to support; if not, let us know and we can help you choose the springs you need.

Home Owner from Jeffersonville Indiana

Feb 13, 2019 9:56 pm

I've looked all over the spring and have not found a number. And the 180 series does look right. How do I choose which lb?

Bob from SWISCO

Feb 14, 2019 9:46 am

So, without a stamp on the old spring we're going to need to give you a little homework. I need you to remove the sash from the window and place it on a scale. Give me its exact weight, as precisely as you are able. Then, tell me how many springs are used on each side of the sash in total. We can use that information to calculate the proper strength of your springs.

Home Owner from Jeffersonville Indiana

Feb 17, 2019 1:00 pm

So I did some measuring and weighing. The shoe is not an exact measurements to the original. Is there another one with similar design and different measurements? The top width of the shoe is 15/16, the bottom is 1 3/16, the length is 1 7/8, and depth is 17/32. The coil itself measures 1/2 in wide. So is it close enough to not matter, or do I need to find a different spring?

4 user uploaded images

Bob from SWISCO

Feb 18, 2019 10:12 am

I know the shoe isn't exactly the same, but our 15-180 will still work. Yours is just an older version.

All we need now is the weight of the sash and the number of springs you have on each side.

Home Owner from Jeffersonville Indiana

Feb 18, 2019 3:31 pm

It is roughly 15 lbs, and there is one coil on each side.

Tom from SWISCO

Feb 19, 2019 9:46 am

Great! In that case, I recommend our S190-840. Each of these can carry 8 pounds, so using one on each side should work well for your sash. I'm confident this will work with your existing pivot shoe, too.