Crank Handle For Modern Windows 1989

Question

I am looking for a crank handle for some casement windows that were sold in 1989. They came from a company called Modern Window Corporation based out of Oak Park Michigan. The spline pattern in the crank looks like there in 12 splines.

Jasmine · Accepted Answer

Hey there! When the turning spline (worm gear) to the operator comes out, you need to replace the whole operator system. That part of the operator is beyond repair, unfortunately, but the good news is that we can likely recommend a replacement.

I'll need to see a photo of the entire operator. Especially the arms and how they connect to the bottom of the window.