Window does not close

A quick learner from Illinois says:
May 30, 2017
The window cranks open and close but will not close completely. Like it's off center or the crank does not crank enough to close the window. I'm thinking i need to replace the operator. The window is a Crestline. I have yet to see even the same type of handles as these windows have. Can you tell what model this crank is? Does it sound like the operator is what needs to an replaced? I think the damage came from the window being open on a windy day. Not much confidence in Crestline quality.
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Tom from SWISCO responded:
May 30, 2017
Thank you for posting. Are you able to upload a photo to us of the part in question? This will help us determine in which replacement part may work for you.
A quick learner from Illinois says:
May 30, 2017
Thanks for reply. Here is a pic.
operator crank
User submitted photos of a window operator.
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Tom from SWISCO responded:
June 2, 2017
Thank you! Please see our 39-330 and 39-329 to start out. These are modern ROTO operators and I think they could match yours. Just make sure the bearing at the end of the arm is the same, I can't make yours out.

I would also recommend a new handle, since your old one won't be compatible. See our 39-114L.
LH Inverted Split Arm ROTO Operator, Vinyl App
LH Inverted Split Arm ROTO Operator, Vinyl App
39-329
$34.78
RH Inverted Split Arm ROTO Operator, Vinyl App
RH Inverted Split Arm ROTO Operator, Vinyl App
39-330
$34.78
Crank Handle, 11/32"
Crank Handle, 11/32"
39-114L
$4.42
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