Casement window operators - unknown manufacturer, maybe Roto

Question

Hello,

The vinyl casement windows were installed about 13 years ago to replace aluminum frame ones. We have seven of the left-hand hinge ones and six of the awning style. I'd like to have operator replacements for all of them.

I ordered and received five of the "39-226 Male Roto Folding Handles" from you last week after one of the existing handle shafts sheared off inside the operator. The handles fit fine, but the operator sockets are wearing out.

I suspect that the attached pictures aren't quite adequate to the task of identifying the operators. My very rough measurements of the actuator arms are:

Awning: 6.25" + 6.75" outer arms; 7.25" + 7.75" inner arms

LH hinge: 9" outer arm; 6.75" inner arm

Please let me know what more I need to provide to help you identify the correct parts. I'm reluctant to remove the operators until I have their replacements because the guestrooms they're in are occupied nearly every day, but I'll that if you say it's necessary. I'm also willing to just buy singles of what you think might fit, and pay return shipping if, once they arrive, comparison shows that they won't.

Best wishes,

Chip

Tom · Accepted Answer

Hey, Chip! Thanks for reaching out. I think I can work with these pictures. In fact, I have a few ideas right off the bat.

Starting with your awning window, see our 39-393. I think you'll find this is a pretty close match. The casement window operator was a little trickier, but that bottom angle showing the underside of the sash is what did it. See our 39-398, which I think is the same size as the pictured window, and our 39-399, which is the opposite side.

You mentioned before that you ordered our 39-226 handle, which uses a 5/16" hex spline. Both of the operators I mentioned use 11/32" ribbed splines. With that in mind, you'll want our 39-205 for both.

Let me know if you have any questions! I'll be happy to help as best as I can.