Cranks open, won't fully close

A quick learner from Lake Quivira, KS says:
No marking on window frame or cranks. The crank works to open window but clicks and won't "catch" to fully close.
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Thumbnail of the uploaded file named image.jpg
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Bob from SWISCO responded:

Thanks for posting. This looks like either the 39-253LB and 39-253RB Operators, or the 39-438B and 39-439B pair. The difference between these two pairs of operators is explained in the video below. For a new cover and handle that works with either set, see the 39-375 and 39-376, or the 39-451 and 39-452. Let me know if you have any questions.

A quick learner from Lake Quivira, KS says:
Thanks! Your response helped. Next question:

Will this handle/cover:

Encore Truth Folding Handle with Cover
Product Code: 39-376

Work with this operator:

Encore Dual Arm Operator, Sill Mount
Product Code: 39-253RB

I think the current cover we have is this:

Encore Truth Operator Cover and Handle
Product Code: 39-452
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Bob from SWISCO responded:

Yes, the 39-376 is compatible with the 39-253RB. So is the 39-452; it's really a matter of whichever style you prefer.

How to Orient a Dual-Arm Operator
How to Orient a Dual-Arm Operator
VIDEO
WATCH >
Comparing the 39-253LB & 39-438B Operators
Comparing the 39-253LB & 39-438B Operators
VIDEO
WATCH >
Anatomy of a casement window
Anatomy of a casement window
VIDEO
WATCH >
How to identify casement and awning operators
How to identify casement and awning operators
GUIDE
READ >
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