Balance replacement

Home Owner from Sarver PA

May 4, 2024 11:55 am

could not find any numbers or letters looking to replace the entire assembly.
Figured it may be easier to replace the whole assembly being these windows have been in for a while.

1 user uploaded image

4 Replies

Bob from SWISCO

May 5, 2024 11:55 pm

Thanks for posting. This looks like an older version of the Series 140 Coil Balance system. If you're uncertain what spring weight to select for the replacement coil systems, give me the exact weight of the window sash that they support, and I can work that out for you.

Home Owner from Sarver PA

May 6, 2024 8:21 am

I did find a number on one of the springs E7, the window weighs 12.4 lbs so I think I need an 07

Bob from SWISCO

May 6, 2024 3:16 pm

A pair of S140-07 balances carries 13 through 14.99 pounds, which would be too strong. If your sash is only 12.4 pounds then I would recommend the S140-06 instead. A pair of these carries 11 through 12.99 pounds, which is much closer to what you need.