Not closing completely

Question

The window doesn’t close completely because the last gear tooth is broken.
How do I replace this gear mechanism? Do I need to remove the window frame first? I can see about six screws, but I can’t access them because the frame is in the way. Does the frame come off, or do I need to cut that section and glue it back afterward? What is the correct way to replace it?

Tom · Accepted Answer

You don't necessarily need to remove the frame, just the trim covering the operator. We have a video guide on how this is done.

Regarding the operator itself, my best guess at this stage is the 39-031 and 39-032. Make sure to review all arm sizes before you place an order just to be sure they line up. You can reuse your old cover and handle.