Jasmine from SWISCO responded:
January 17, 2024
Hey there, Thanks for reaching out! I'm sorry to say that you would not be able to replace the worm gear on the operator. These operators are put together using a specific type of equipment. So, you'll need to replace the entire operator. Take a look at our 39-013 and its opposite handed version, 39-014. These are an updated version of your existing operator. The compatible crank handle is the 39-114L. Dimensions for 39-013
Additional information for 39-013
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