How many turns?

Question

I have Champion aluminum frame double hung tilt windows with 3/8 red tip balances (25"). I want to replace the balance for a single window that is 35" wide. While removing the old balance the charging tool slipped, and I was unable to record how tight the balances were charged. In general, how many turns are roughly needed for 35" wide window? 3-4, 10-15, 20..?

Tom · Accepted Answer

You only want to charge a balance 2-3 times, regardless of how large the window is. If 2-3 times isn't enough, then give it another 1-2 turns. We highly recommend that you never go much more than that, or you risk damaging the spring. If that doesn't do it, then the spring is too weak for the sash weight and no amount of turning will give you enough tension. You would need a new balance with the proper spring strength.