Paul from SWISCO responded:
February 26, 2016
After you lubricate the spirals, you need to charge the balance by turning the spiral about three or four times. You should feel tension build as you turn. Our 75-004 tool makes it easy to charge. If you do need new balances, consider our S400-29. Depending on the weight of the sash, you will need to decide the color tip. I would recommend Red for sashes weighing 10 through 22 pounds and Green for 14 through 26 pounds.
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