Broken pivot shoe

A home owner from Michigan says:
Not sure but I think these are sliverline windows that are about 10 years old
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Bob from SWISCO responded:

Thanks for posting. This looks a lot like our 15-192 Certainteed Pivot Shoe, and indeed that used to be what we would recommend. However, you have a specific version of this shoe, which was made by Simonton. As it turns out, it in fact requires a good amount of modification for the 15-192 to replace this Simonton shoe, and it can be quite troublesome to make work. Therefore, we recently started experimenting with alternatives. We now recommend the 15-259 pivot shoe, which should fit well in the track. 

There's a catch, however. Because you're replacing the pivot shoe with a different type, I am afraid you'll need new Coil Balances as well, ones that are compatible with the new shoe. See the Series 159 Coil Balances, which are housed by the 15-255 Single or 15-256 Double Supports. To know what spring weights to select, look for stamp codes on the tongues of the coil springs. If there are none, or you are unsure, give me the exact weight of the window sash that these coil balances support, and I'd be happy to work it out for you.

Finally, to use this assembly, the original pivot bars would need to be replaced with our 26-089. We are still in the early stages of confirming if this replacement is a good long-term solution but we have high hopes that it will work with little need for modifications, if any. Take a look and see what you think. If you decide to give it a try, we'd love to hear how it works out for you. 

A home owner from Michigan says:
Ok I will check the weight. I assume I will need to replace both sides? To confirm this is a double hung pivot window.
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Bob from SWISCO responded:

Yes, I neglected to mention you should replace both sides-we normally recommend this when replacing one balance system anyway, since the other usually isn't far behind from failing. But since you're using a new system in this case, it's especially important. Let us know how you make out, or if you have any other questions. 

A home owner from Michigan says:
Ok here is a pic of the coil. Looks like all of the pivot shoes are depicting this cool box except the one that broke is screwed to the coil on one side. The coil box is screwed in a stationary position
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A home owner from Michigan says:
I did take a closer look and see where the plastic base is attached to the coil. Let me know what parts to order. Thanks
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Bob from SWISCO responded:

That box is the spring support. That would be the 15-255 that I mentioned in my original response, which will be compatible with the new Series 159 spring.

A home owner from Michigan says:
Trying to figure out which coil to order. No stamping on the old one
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Bob from SWISCO responded:

If there is no stamp on the old balance then you will need to weigh your sash on a scale and divide that by how many springs are used to support it, then pick the corresponding spring on the Series 159 store page.

A home owner from Michigan says:
coil weights 2 oz. How does that equate to the weights of the coil? They all seem to be in pounds. there is only one coil per side
A home owner from Michigan says:
Sorry I reread and saw you want the sash weight which is 17 pounds. Divided by 2 (one coil on each side) 8.5 pound coils?
Thanks
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Bob from SWISCO responded:

Yep, that would be exactly right!

A home owner from Michigan says:
Thank you! Sorry for all the questions
15-192 : CertainTeed Pivot Shoe
CertainTeed Pivot Shoe
15-192
$6.39
VIEW >
26-089 : Pivot Bar, 3
Pivot Bar, 3"
26-089
$1.02
VIEW >
15-255 : 3/4
3/4" Coil Single Support
15-255
$1.06
VIEW >
15-256 : 3/4
3/4" Coil Double Support
15-256
$1.06
VIEW >
15-259 : Coil Balance Pivot Shoe
Coil Balance Pivot Shoe
15-259
$2.94
VIEW >
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SWISCO S170 and S171 Coil Balance Assembly
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How to remove window pivot shoes
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Anatomy of a tilt window
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Removing Rusted Pivot Bars
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How to replace a Simonton coil balance
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