Vinyl windows: constant force coil balance?

Question

My Mom has vinyl windows and the smaller ones will not stay up when opened. Can the shoes on the balance be moved to put more tension on the spring and hold the windows open? Or is there some other way to keep them open?

Thanks very much for your help and your time.

Answer 1

there is often a friction adjuster at the point where the window clips into the balance.  remove the windows completely (by tilting them in, the turning then diagonal (move one corner up on the balance and one down) ) then you can get a good look at the balance and see what adjustments are available