Coil Balance Installation Issues

A quick learner from niagara falls says:
I purchased part # 15-177.Seems to be a perfect match.I can't get the old coil to go down far enough to line up with screw hole on the new shoe,Not sure what I am doing wrong.
Thanks
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Bob from SWISCO responded:

Thanks for posting. See the video below. While this is for a different Coil Balance system, the principles should apply. Generally, one connects the pivot shoe to the coil balance further up in the window jamb, then they bring the pivot shoe down to a level where the window sash can be reinstalled. Look over these video and let me know in more detail if you still have any problems. Thanks.

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