Paul from SWISCO responded:
December 11, 2014
Hey, Mario. Sorry that you're having issues. If I understand your problem correctly, then the balance you bought is too long to engage the anchor hook. If that is correct, then I would go down to 18". I wouldn't drill new holes.
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Paul from SWISCO responded:
December 12, 2014
I agree, I think the option you chose, 3040, is too strong. What was the number printed on the original balance? Also, what is the weight of your sash? Two balances with a 3040 option can carry a sash weight of 23 through 28 pounds. You shouldn't have to extend the spring so far as to snap the rivet, it should only be a few inches to hook it under the take-out clip (16-002). There is no need to lubricate it.
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