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Tom from SWISCO responded:
May 1, 2015
Good morning! Yes, this is a very old balance that is no longer made. We don't have any official information on how they mount, but I believe there should be a bracket on the bottom of the sash to which the tip of the spiral balance hooks. It would also screw in at the top of the window frame.
If you need to replace them, we can help. It may be an easier solution in the long run. You could consider substituting it with our Series 500 spiral balance, along with our 17-012 bracket. This type of balance has been used in similar wood windows for decades and is still being manufactured. Just make sure you have enough room to install it; the diameter of the tube is 5/8". |
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Paul from SWISCO responded:
May 4, 2015
Take a look at the guide below, this shows you how we install balances like our Series 500. I think this will help make things clearer.
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Paul from SWISCO responded:
May 5, 2015
The groove might be wide enough for the Series 500 spiral balance, but if it's not then your options are severely limited. I don't think we have anything else that would work. Could you or someone else be able to route out the groove to enlarge it?
Keep in mind that these windows are very old and any hardware you use to repair them may require some retrofitting. |
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Paul from SWISCO responded:
May 7, 2015
If you are unable to determine length from your old balance, I can calculate it for you based on the height of the visible glass for both the top and bottom sash.
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