Casey from SWISCO responded:
August 24, 2022
Hello, I agree that your assembly appears to match the 15-087 and 15-086. These parts are compatible with the 15/32" wide S180 coil springs. To confirm the correct strength option for your coils, you would need to remove and weigh the window sash that these balances support and divide the weight by the number of coils used on both sides of the sash. Thank you! |
Casey from SWISCO responded:
August 29, 2022
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Casey from SWISCO responded:
August 29, 2022
Correct, the coils attach to the top mounting bracket as shown in the diagram below. Series 180 coil balance diagram
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