Jasmine from SWISCO responded:
November 15, 2023
Hey there, Thanks for writing in! Your Simonton coil balance pivot shoe is no longer made but we do have a replacement solution that will work for you. Take a look at the 15-259 pivot shoe. Take a look over the dimensions below and compare them to your existing shoe to confirm. Dimensions for 15-259
This shoe should fit well in the track, along with the S159 coils springs. For the coils stamped with a "408", you'll need the S159-8. For the other windows, you'll need to confirm the stamp from the springs or the exact weight of the sash to confirm the spring strength. If you need to use the sash weight, you'll need to take the total weight and divide it by the number of coils in the window. This assembly uses either the 15-255 single support or the 15-256 double support. Also, keep in mind, to use this assembly the original pivot bars would need to be replaced with our 26-083. Take a look at the video below for an explanation on how to convert this balance assembly. |
Jasmine from SWISCO responded:
November 15, 2023
Hi Andrew, My apologies, the Series 159 does come in .5lb increments. With that said, for the 15.4lb sash I would suggest using the S159-7. For the 17lb sash, I would suggest using the S159-8. You should be fine using just one coil. I hope this helps! |