Window parts to simonton windows.

A quick learner from Pennsylvania says:
I'm looking to replace a few broken window closures. These are simonton windows about 10-15 years old. Some of the smaller windows are single spool but the bigger ones are duel spool.
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Lauren from SWISCO responded:

Hello, thank you for posting, 

To further review for a replacement, we will need to see pictures of the pivot shoe that the coils attach to. Thank you! 

A quick learner from Pennsylvania says:
They are the 5500 series windows if that helps. See the picture of the shoe attached.
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Lauren from SWISCO responded:

Thank you for the additional pictures,

Your assembly resembles an older Simonton balance that is no longer made. We recommend converting to the 15-259  pivot shoe and Series 159 coils springs as a replacement. Please review the step by step video below regarding the conversion and additional products needed. Let me know if you have any questions. 

A quick learner from Pennsylvania says:
They look right to me. Next question before I order them.

The shoes are good, I have 25 in my cart.

I took 1 of my springs out to look for markings and the only thing I can find is "40" which refers to length I assume.

As far as weight, I weighed each window and wrote the weight down. Example, a 20 pound window sash wound need a 10 lb spring on each side to equal 20ish pounds of lifting power right?

And for the heavier 30lb sashes I have they have double strings on each side so I assume 2-8b springs on each side totaling 32 lbs of lifting power.
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Lauren from SWISCO responded:

Hello!

The Series 159 coil springs are measured and can hold .5 pound increments. 

You have two options for a 20 pound sash weight. First option you could use (1) 10.5 lb S159-10 on each side of the window to equal 21 pounds. The extra pound should not be an issue, but later down the line you may find the window is a little harder to close.

Second option, is doubling up the coils and using (1) 4.5 lb S159-4 and (1) 5.5 lb S159-5 on each side of the window to equal 20 pounds. 

For the 30 pound sash, we suggest using (2) 7.5 pounds coils S159-7 on each side of the window to equal 30 pounds. 

Please let me know if you have any additional questions. 

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