Hurd windows crank works until you get here, then it just doesn't tighten. Looking in from the outside the gears slip vertically hence no tightening.
Bob from SWISCO responded:
October 27, 2020
See our 39-239C Awning Operator, along with the 39-436 Pivot Slides. See if this hardware matches up. For the cover and handle, see the 39-375 or 39-451, depending on which style you prefer.