Paul from SWISCO responded:
March 9, 2015
Hello! Thank you for posting. For your balance, I would recommend our S500-27 spiral balance with a R Red Tip. I would also recommend our 17-012 bracket. Review this hardware and let me know if you agree. Installing them will be tricky, however.
Your sashes actually aren't made to come out unless you dismantle the main window frame, which is a time consuming job. When I used to repair these balances, I would remove the old balance and shoe and while the sash was closed. To install the new balance, I would drop it in behind the sash and screw it in at the top. Then, with someone's help, I would raise and hold the sash up and pull three or four inches of the rubber weatherstrip from the bottom end to allow me to install the 17-012 bracket. I recommend doing this with our 33-085 (or similar) screws. When that's done, I would charge the balance with our 75-004 or 75-005 tool by turning it three or four times, clockwise. I would then lock the balance between the fork of the 17-012 and repeat this process for the other side. Once it's all done, try the sash. If it creeps down, give it another turn or two. Work the bottom rubber weather strip back in its groove and you're done! |