Removing Truth Crank covers

A quick learner from Michigan says:
Hi - I need to do some work on my Truth cranks, but I'm not sure how to get the plastic covers (39-107) off without breaking them. They don't seem to want to come off easily. and I'm afraid I'll crack them if I'm not doing it right. Suggestions? Thanks!
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Dave Sr. from SWISCO responded:
First, take a look at our video below, which shows you the best method of removing a casement operator.

Now, after removing the operator handle, the 39-107 should come off with a little "wiggling." It could be that it's held on by some glue or polyurethane used in the manufacturing of the window.
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