replacing the coil housing

A handy person says:
How to replace a broken coil housing in an installed Milquard vinyl window.
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Dave Sr. from SWISCO responded:
We want to see what coil balance you are having trouble with. Can you send us some pictures? It would help us in answering your question.
A handy person says:
The coil spring that I am replacing has a product code of 15-086. The top spring broke away from the middle one. I believe that I will need to replace the top two coil units because the interlocking system is broken that hold them together when they are stacked.
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Donna from SWISCO responded:
First, tilt and remove the sash from its track. Next, draw marks with a pencil in the track where the balance and pivot shoe are (for re-installation ease) then unscrew the coil balance. Turn the cam in the coil pivot housing (part that the pivot bar goes into) so it becomes loose in the track and the coil balance and pivot shoe will most likely snap together. Use jamb spreaders to spread the track and slip the balance and pivot shoe out. If you do not want to purchase jamb spreaders. Carefully cut a groove about 2-1/2 to 3 inches at the TOP (for the inner sash) where the track covers are located, then slide the pivot shoe and coil up and out. They will be easier to handle and replace outside of the track, then reverse the process for re-installation.
A quick learner from Pa says:
After cutting the slots do you custom make the channel covers to conceal the grooves that were cut?
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Dave Sr. from SWISCO responded:
No, you can cut one side just enough to replace tilt cam, so you can reuse channel cover.
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