Casement window operator

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Handy Person from Philadelphia

Sep 3, 2025 2:33 pm

The casement window skips when closing and doesn't close without assistance.

3 user uploaded images

6 Replies

Tom from SWISCO

Sep 9, 2025 11:39 am

Sounds like it's either an issue with the operator or the gear. To verify, you'll need to disconnect the operator arms from the sash entirely and then try closing the window by hand. If it still skips, then the hinges are the problem. If it opens and closes fine, then it's the operator instead.

Assuming it is the operator, please take a clear photo of the end of the arm after you disconnect it. It's currently obscured by the track, but it's a vital detail in identification.

Handy Person from Philadelphia

Sep 11, 2025 2:21 pm

Hi Tom,
As you can see from the photos, I removed the operator from the frame of the window and the window swings freely. The operator is our problem. Hopefully you can identify the product from the photos. Thanks for your assistance!

5 user uploaded images

Tom from SWISCO

Sep 11, 2025 4:09 pm

Perfect, thanks! I agree, sounds like the operator is the culprit. Looking at these photos, my top suggestion is the 39-253LB. We also sell the 39-529 guide and 39-451 cover kit separately.

For the opposite side, see our 39-253RB (with the 39-452 cover kit).

Handy Person from Philadelphia

Sep 12, 2025 5:31 pm

One more question Tom. Do the existing brackets/ hardware press fit into the new operator with the existing hardware?

Tom from SWISCO

Sep 15, 2025 9:28 am

Are you referring to the bracket that connects the link arm to the sash? If so, you can reuse the original. If not, we do sell the 39-546 and 39-545.