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Quick Learner from Winston Salem, NC
Based on the attached photos, I think I am looking at part numbers 15-180 and 15-186. Please confirm if you agree. If that is the case, here is my follow up question: your website says I should use a series 190 coil, but I have no clue which coil I should use. The windows are fairly heavy. I have enclosed a photo of the whole window for your guidance.

Is this a DIY fix? Your youtube videos make it seem easy, but I'm not sure how the coil attaches to the shoe. Thanks so much.
Coil assembly
2 Replies
Paul
Paul from SWISCO
SWISCO
Expert
Thanks for posting! The two parts you picked out look good. For the coil spring, see our Series 190 balance. These are just screwed onto the pivot shoe. As long as you follow the instructions in our video you should be okay. Keep in mind you will also need the number off the old spring to choose the best Series 190 option.
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