Also have Simonton casement. need operator
Thanks for contacting us. They don't make these balances anymore, but we do have a more modern replacement. You can actually use the Certainteed coil balance system to replace it. See our 15-192 shoe and our Series 170 and Series 171 springs. Since it looks like you have two springs on each side, you want to use the Series 170 on the bottom and the Series 171 stacked above it. Hopefully that makes sense.
I'm not sure about your pivot bar. Simonton has been known to use our 26-336, but I don't know if that's what you have. Look it over and see what you think.
If that's a match, great... but there's a catch, too: the 26-336 has a collar around the tip that will not fit in the center metal cam of the 15-192. You'll have to either re-use the center metal cams from your old shoes or you'll have to grind down the collar on the new 26-336.
I'll need a photo of the operator on your casement window. I have no idea what it might be without seeing it. If you can show it to me fully removed from the window, that'd be a huge help.
That is unusual to hear that you aren't able to remove the coils through the cut out. Maybe try this, slide the exposed coil pass the opening to remove the next nylon cover. Next, slide the coil springs down and see if you can work the top coil spring out. You can also use the jamb spreader on your window to remove the coil springs through the cut out. Get back to us and let us know how everything works out.