Tom from SWISCO responded:
January 31, 2018
You typically need to remove the sash, yes, but on some older windows this is not possible. If your sash cannot be removed, let me know and I can walk you through what your options are.
You only want to give it around 3 turns on each side. You don't want to go much more than that, or else you risk damaging the balance. You should feel tension start to build. |