Dave Sr. from SWISCO responded:
November 5, 2015
There are a few things you can do. The best way to determine if a spiral balance needs to be replaced or just charged is to simply try to charge it and see if that works. Your windows appear to be tilt, so I'd recommend our 75-006. Check out the guide below to see how they can be charged.
In regards to the windows being hard to open, try using a silicone spray to lubricate the tracks.
If neither method works, then it's probably time for new balances. Get back to us with your results and we can work from there! |