Help identifying older Truth casement window operators

Question

I am a contractor repairing several vinyl casement windows for a customer. At least three of the operators are no longer pulling the sash completely closed. When the crank is turned, the internal gears appear to slip or fail to catch properly under load.

The operator arms are marked “TRUTH.” I have not found any additional model or part numbers on the exposed hardware.

I would like to replace the complete operators rather than replace the windows. Attached are photos of one of the affected windows and its operating mechanism.

Can you help identify the appropriate replacement operator, including the corresponding left and right hand versions if applicable?

If these photos are not sufficient, please let me know exactly which additional photos and measurements you need. I can return to the property and obtain them.

Tom · Accepted Answer

It sounds like the operator gears are stripped. This is common and a natural end to their lifespan.

I'm confident that we sell a replacement for this operator, but the end of the arm is obscured in all your photos. Seeing the design of the guide at the end of that arm is an essential detail, so we'll need that before we recommend anything. Seeing it detached is an essential step of this process.