SWISCO - The Replacement Hardware Authority

My coil balance is too short

A handy person from WICHITA says:
I purchased 12 #S190-832 coil balances and put one on one sash. i works great but is too short. When i close the window fully it comes off the "post". My sash is 36" tall. Are there different lenghts and can I return the 12 I purchased?
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Paul from SWISCO responded:
The travel distance of the coil springs are 31". First determine how far it goes down before it unhooks, then mark that point and measure how much further you would need to go. After that, bring down the installation screw and see if the issue is resolved.
A quick learner from wichita says:
If I move this down will it limit how far the window goes up?
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Paul from SWISCO responded:
To be perfectly honest, I've never come across this type of situation before. I think what I suggested will work, but I've never tried it myself. I can't say for certain if it will limit how far your window goes up.
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