Bob from SWISCO responded:
May 12, 2021
See our 15-177 Pivot Shoe, which uses Series 152 Coil Balances. To know what spring weights to select, look for stamps on the coil springs themselves. If there are none or you're unsure, give me the exact weight of the window sash, and I can work it out for you. |
Bob from SWISCO responded:
May 13, 2021
Yes, that makes sense. An S152-9 9 pound spring supports 9 pounds of weight. One on each side of the sash equals 18 pounds of total support--being within one pound of the actual sash weight works fine. Let me know if you have any other questions. |
Bob from SWISCO responded:
May 14, 2021
Yep, these springs just screw to the shoe, nothing fancy. As for other parts you may need, that depends on what's broken. I recommend doing a once-over of the window to see if anything else is damaged. If so, show it to me and we can work from there! |