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Paul from SWISCO responded:
April 14, 2015
Hello, Stephen! I'm sure we can help with this project. Before replacing your balances, it's always a good idea to try charging them first. If it works, great. If not, you know you need to replace them. Check out this guide for tips on what you can do.
Now, if you need to replace the balance, it's between the Series 900 or Series 600 spiral balances. You say the diameter is 1-3/4", though, which has me a little confused. The Series 900 tube has a diameter of 3/8" and the Series 600 tube has a diameter of 5/8" (Well, technically it's 9/16" but it's considered 5/8" in the trade). Can you confirm which of these is correct?
As for length, this is determined by just measuring the tube. You may be able to do this while it's still installed but removing it always helps. |
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Paul from SWISCO responded:
April 27, 2015
Hey, Stephen. I'm so glad we've been able to help! I'm confident we can get this all squared for you.
First of all, yes: the diameter of your balance tube appears to match our Series 600. As for the shoe, it appears to be undamaged so you should be able to reuse it. In the case that you cannot, though, I would recommend our 15-046. Just make sure the dimensions match, specifically the width (1-1/4") and thickness (1/2"). I'm not so sure about your tilt latch. You have kind of a weird setup. Most tilt latches go at the top of the window sash but it looks like yours is on the bottom face. Can you confirm? Do you have an undamaged one that we can look at? |
