Casement window operator broken

A quick learner from Ossining, NY says:
September 15, 2023
Hey my casement window opens half way then the operator loses its grip and the window gets stuck. I am attaching photos of the window. Can you please tell me if you sell the replacement part?

Thank you,

Louis
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Bob from SWISCO responded:
September 15, 2023

Hey Louis. This looks either the 39-253RB or 39-439B dual arm operators. The difference between these two operators is in the appendage at the end of the straight arm; the video below explains more. In either case, for a new cover and handle, see either our 39-376 or 39-452, depending on the style you prefer. Also see if you need to replace the track: either our 39-566 or 39-528, depending on your setup. Let me know if you have further questions. 
Encore Dual Arm Operator, Sill Mount
Encore Dual Arm Operator, Sill Mount
39-253RB
$30.70
Truth Hardware Track Slider
Truth Hardware Track Slider
39-529
$1.20
Encore Truth Folding Handle with Cover
Encore Truth Folding Handle with Cover
39-376
$11.97
Encore Dual Arm Operator, Sill Mount, Low Profile
Encore Dual Arm Operator, Sill Mount, Low Profile
39-439B
$38.64
Encore Truth Operator Cover and Handle
Encore Truth Operator Cover and Handle
39-452
$12.05
SS 14-1/2" Track
SS 14-1/2" Track
39-566
$27.92
14-1/2" Casement Track, Truth
14-1/2" Casement Track, Truth
39-528
$2.95
Watch How To Repair A Casement Window Crank Operator
Watch How To Repair A Casement Window Crank Operator
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How to Orient a Dual-Arm Operator
How to Orient a Dual-Arm Operator
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Comparing the 39-253LB & 39-438B Operators
Comparing the 39-253LB & 39-438B Operators
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Anatomy of a casement window
Anatomy of a casement window
VIDEO
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How to identify casement and awning operators
How to identify casement and awning operators
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