Tom from SWISCO responded:
April 5, 2016
Yes, if your window cannot stay up then it's a problem with the balance. We don't need to know the brand name to identify the part. You took a picture of the right thing, but much of it is obscured and I cannot make it out. If you can, please take a clear picture of the entire balance mechanism, especially the pivot shoe. Please do not include the ruler. Thanks!
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Tom from SWISCO responded:
April 11, 2016
I still cannot make out the pivot shoe, but I think your coil spring and pivot shoe have been replaced by the manufacturer with the 15-140 shoe and Series 150 springs. See what you think.
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