Dave Sr. from SWISCO responded:
February 10, 2017
I have replaced these bearings in the past and it is not an easy job to do. I believe you will need to remove the operator from the window, disconnect the torque bar from the window linkage and remove the bearings at both ends of the torque bar. From what I remember you need to take out the complete torque bar to replace the bearings at the ends.
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