Looking to replace

A home owner from Wilsonville, OR says:
Inside casing of where you insert the arm crank is stripped. So, my understanding is I need to replace the whole assembly unit. The name on the arm crank says Weathervane, and the number on one of the arms is 30905 (Truth).
Thumbnail of the uploaded file named Window Crank Arms.jpg
Thumbnail of the uploaded file named Window Crank.jpg
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Emily from SWISCO responded:

Hello!

Start by comparing your dimensions to our 39-171 and 39-172 operators and see if they match up to your original assembly.  

A home owner from Oregon says:
This might work, but curious on how to attach the arm extension to the bracket that is on the window?

This seems a bit different than what the 39-171/172 have.

I am not sure even how to disengage the one I have as it appears locked in.

Thumbnail of the uploaded file named window arm connection option provided.PNG
Thumbnail of the uploaded file named window arm connection.PNG
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Emily from SWISCO responded:

There should be a detach clip at the end of your link arm that will allow you to disconnect it from the sash. Take a look at the video below. This is for a different operator but it shows you how to disconnect the detach clip starting at 0:39 in the video. Let me know if this helps.

39-171 : Truth Hardware Dyad Operator
Truth Hardware Dyad Operator
39-171
$25.72
VIEW >
39-172 : Truth Hardware Dyad Operator
Truth Hardware Dyad Operator
39-172
$25.72
VIEW >
39-545 : Truth Snap-Stud Bracket
Truth Snap-Stud Bracket
39-545
$2.60
VIEW >
39-546 : Truth Snap-Stud Bracket
Truth Snap-Stud Bracket
39-546
$2.60
VIEW >
Watch How To Repair A Casement Window Crank Operator
Watch How To Repair A Casement Window Crank Operator
VIDEO
WATCH >
Connecting a casement window operator to stud bracket
Connecting a casement window operator to stud bracket
VIDEO
WATCH >
Anatomy of a casement window
Anatomy of a casement window
VIDEO
WATCH >
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