Bob from SWISCO responded:
August 6, 2023
Thanks for posting. That part is called the worm gear. When it pops out, I am afraid that means the entire operator has broken down and needs to be replaced. Fortunately I believe we can help. This looks similar to either our 39-143, 39-083 or 39-140 Awning Operators. See the diagrams below, compare with your old mechanism, and see if one of these matches what you need. Dimensions for 39-143
Dimensions for 39-083
Dimensions for 39-140
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