Acan crank operator

A landlord from Holland Mich says:

I have Acan crank out windows in one of my rentals and the cranks are broken how do I find the right one that I need

Thumbnail of the uploaded file named window crank 2.jpg
Thumbnail of the uploaded file named window crank.jpg
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Bob from SWISCO responded:

This looks like either the 39-253LB or 39-438B to me. The difference between these two operators is highlighted in the video below. 

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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