Gorell double hung tilt

A contractor from Antigua & Barbuda says:
August 20, 2018
The sashes seem to weigh (I only have bathroom scale) about 27 lbs each. I have about 35 of these Gorell sashes with coil balance problem. I?d rather rebuild than replace them.

Please let me know what you think. Do you have an installation viideo to help me get the first install done right?

Thanks, Bob Eremian
A contractor from Antigua & Barbuda says:
August 23, 2018
Please let me know where we stand with this inquiry? i will need quite a few new coil balances.
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Casey from SWISCO responded:
August 24, 2018

It looks like you have our Coil Housing Pivot; 15-087 and Tandem Coil Housing; 15-086. These are typically used with the Series 180 Coil Balance. Check for a number printed on each coil that indicates the number of pounds it can carry. If you are unable to find the numbers, you'll need to go by your sash weight. Divide that weight by four and each coil will need to carry that weight. For example; if your sash weighs 28 lbs. you'll need four 7 lb. coils to support it. I have associated a couple of installation videos that may be helpful.
Coil Housing Pivot
Coil Housing Pivot
15-087
$5.97
Tandem Coil Housing
Tandem Coil Housing
15-086
$1.68
7 lbs Series 180 Coil Balance
7 lbs Series 180 Coil Balance
S180-07
$4.97
Mounting Bracket
Mounting Bracket
16-024
$0.66
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