Coil balancer

Home Owner from Garfield, NJ

Jul 29, 2021 5:31 pm

Hello, my name is Marko and I need assistance in Purchasing the right coil balances. The ones I have, both of the top coils are broken on the side. The stamp on the coil are "D". The window weight is 12 pounds. I have included several pictures. Thank you.

5 user uploaded images

4 Replies

Bob from SWISCO

Aug 3, 2021 3:10 pm

This looks like a 15-177 Pivot Shoe, which uses Series 152 Coil Balances. A stamp of 'D' might denote a 4 pound S152-4 spring; however, if the window weighs exactly 12 pounds, I would use 2 S152-6 6 pound springs, one on each side of the sash. That would total 12 pounds of support overall.

Home Owner from Garfield, NJ

Aug 5, 2021 9:01 pm

Thank you for your response. I want to ensure that I only need to purchase two (2) S 152-6 6 pound one for each side? Which screw is recommended for connecting the top coil with the shoes? Also, can I use my old coil housing for the top coil support? Your help is greatly appreciated!

2 user uploaded images

Tom from SWISCO

Aug 6, 2021 1:39 pm

If your sash weight is 12 pounds then you definitely want to follow the instructions Bob gave above. You'll also need an additional cover/cartridge for the springs since it looks like your old setup only had one. So I recommend the 15-143, 15-144, and 15-145. These three pieces all kind of "sandwich" together and snap over the spring, working as a cartridge to hold it in place.

As for screw, you want the 33-072.