Adjusting the X-Drive Split arm Roto Operator's arm

A quick learner from maine says:
Purchased operators, 39-325 and 39-326, do not match our installed operators.

I need to turn the slave arm, the one that connects to the window, over to have the offset downwards intead of upwards.

Is this possible? How do I do that?

A customer submitted photo of a ROTO operator.
Profile picture of Dave Sr.
Dave Sr. from SWISCO responded:
The photo of the older operator looks more like our 39-317 Split-Arm Operator than it does the newer operator, 39-325. The body and gear arm looks the same, but the fore arm that connects to the window is different. You could drill or grind off the old arm rivet and install the arm you need onto the new operators, but I think you would be better off purchasing a new operator.
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