replacement awning window crank

Question

Hello, attached are photos of the crank on my awning window. The handle keeps falling off as there is no set screw to tighten. At full extension the arms are 12"and the interior cover is  4 5/8 ".

Bob · Accepted Answer

Hello there. I see you were looking at our 39-393 Awning Operator, and I agree this looks promising. Just review the dimensions below to see if this matches what you have; let me know if anything differs. For a new handle that works with this operator, see the 39-232.

Alternate view of 39-393