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Paul from SWISCO responded:
April 4, 2016
Based on what you describe, it definitely sounds like the balances are the issue. The Series 600 is a good place to start. I suggest that you confirm that the outer tube diameter is 5/8" or 9/16". If it is, then that's definitely what we recommend.
Keep in mind that right now you have a cover in the jamb track that conceals most of the balance. This is not the tube I'm referring to. You should remove the balance from the window to get the most accurate measurement. Alternatively, your balance may just need to be charged a few times. You can wind up spiral balances, sort of like a clock, to give them more tension. See the guide below for instructions how.Now let's look at the pivot shoe. Yours definitely needs to be replaced. I think you have an older model of our 15-046, but you should carefully compare our measurements to yours to confirm. This would require you removing one of the shoes. See the two videos below on help removing these. |
