How do I use a spiral balance charging tool?

A quick learner from NC says:
How is the charging tool to be used? Do the spiral balances come already charged? Thank you in advance. Donald
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Paul from SWISCO responded:
Our spiral balances do not come pre-charged, with the exception of our Series 880.

The charging tool makes it easier to turn the spiral so that you can charge up balance, keeping your sash in place. To see how the charging tools work, please refer to the following tutorial video on how to replace a tilt window spiral balance!

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