Adjusting the X-Drive Split arm Roto Operator's arm
A quick learner from maine says:
December 9, 2011
Dave from SWISCO responded:
December 16, 2011
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.