Crank assembly rusted and stripped out. need new crank, open and close assembly and arms are riveted on so looks like it need the 2 arms that go with the assembly. Casement window.
Bob from SWISCO responded:
January 15, 2021
See either our 39-032 or 39-156. The difference between these two operators is the length of the link arm, so compare both with your old hardware to determine which you need. For a new handle and cover, see our 39-205 and 39-114L.