Worm gear has pulled out, do I need to replace my operator?

A landlord from KS says:
I have 2 crank covers that are cracked. I can open the window, but when I try to close it the worm gear comes out and the window stays open. I can close the window by hand. Will a new plastic cover fix this, or do I need a whole new crank assembly? It seems to me all I would need is a cover to keep the gear from backing out, but in one of the threads above you mentioned "that if the worm gear has pulled out, then it is time to replace the operator." Please advise.

Thanks for your help.

A customer submitted photo of a window operator.
Profile picture of Dave Sr.
Dave Sr. from SWISCO responded:
Yes, when the worm gear comes out it is time for a new one. The worm gear is pressed into the housing. Take a look at our 39-095 Andersen Straight Arm Operator, it looks like your sample in the photo. It will come with a new cover.
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