Paul from SWISCO responded:
July 27, 2018
The balance should keep the window up without any drooping, yes. We find it easier to get to and charge the top sash balance by first removing the bottom sash. With the sash out, check the interlock of both sashes for any debris or bent interlock that might be causing the top sash to drop. If not, give the balance a couple more turns. You should feel the tension building. You don't want to charge it too much; I don't recommend more than 5 turns. |