Certainteed casement window operator

A home owner from USA says:
I need an operator for this Certainteed 34" casement window for a house built in 2000. The attached picture of the operator is what we have. Turning the crank produces no movement.
User submitted a photo of a window operator.
Profile picture of Dave Sr.
Dave Sr. from SWISCO responded:
Thanks for posting. Take a look at our 39-253L operator. This could be the one you are looking for. See if it matches up to yours, especially its measurements. You might also need to replace the 39-529 track slider.
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