broken crank gear
Thanks for writing in! Your crank operator is not functioning correctly because the worm gear has been removed from the center of it. When this gear becomes stripped or dislodged from the operator, it cannot interact with the gears on the base of the operator which causes the issue you are having.
I am happy to provide you with a recommendation but I will need to see a photo of the entire operator to confirm the correct replacement. I am specifically looking to see a photo of the arm(s) and how the operator interacts with the swinging sash.
Please feel free to reach out with any questions you might have.
Thanks for the photos. Your casement window operator can be replaced with our 39-032 EntryGard Dual Arm Operator. If your are also looking to replace the opposite side, you'll need the 39-031. To confirm that these are the correct replacement for your window, review and compare the dimensions below.
I've also tagged the compatible handles and covers below.