Tom from SWISCO responded:
May 28, 2020
Hello! That is one old house. Sounds like you have your hands full with this project. Pictures would be a huge help, thank you. I can at least tell you off the top of my head that we like to use the Series 500 spiral balance for old wood windows, but this is just an educated guess. Let me see what you have now and I can make a more confident recommendation. |
Tom from SWISCO responded:
June 16, 2020
You'll definitely want the Series 500 spiral balance, as well as a 17-012 bracket, which will screws into the sash from underneath. These will sort of cradle it after you hook the balance onto them. Other than screws, you'd also want a 75-005 charging tool. You want to give the new balance 2-3 clockwise turns after you install it but before you hook it into the 17-012 bracket. |