Your SWISCO Order 891045 Confirmation *** Casement operator

Question

I tried to install my recent purchase, casement operator (39-188) to fix an existing operator problem with my casement windows. The operator installed with no issue, but does not allow the casement window to close fully. It stops about one to two inches shy of being able close completely. Naturally I need the windows close completely and lock.

Attached are photos of my old existing operator, when compared to the new operators I recently received.

Did I order in incorrect operator? Should I have ordered part # 39-090 instead ?

Also I noticed the total length of the split arm on my old operator is about 7 1/8 inches.

The new casement operator (39-188) has a split arm that is about 7 3/4 inches in total length. Does the split arm simply need to be cut down to a smaller length to work correctly?

Thanks for your help.
Regards, Roger.

User submitted photos of a window operator.

Tom · Accepted Answer

Thanks for posting. There are three things I note about your old operator. The first is that the gear arm does share the same design as the 39-090, not the 39-188. It's a subtle difference, but basically the 39-090 gear arm has a "Z" shape while the 39-188 has a "W" shape.

The second is that your gear arm also has an offset, while the 39-090 does not. I don't know if this will affect the function. Did you find the 39-188 installed fine despite there being no offset? If so, then we can ignore it for now.

The third is the size of the link arm. Yours is far shorter than either that come with our 39-090 and 39-188. You would need to drill off both arms, and then swap them. You can install the old arm on the new operator with our 62-014 rivet.