casement window operator

A quick learner from Florida says:
April 24, 2022
Greetings,
I no longer am able to open window without slightly pushing the window open. When opening the window, the crank gets stuck. Slightly pushing the window out enables me to further turn the crank.

Can you pls provide the product number for this item.

Many thanks, Chris
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Casey from SWISCO responded:
April 26, 2022

Hello,

Take a look and compare the 39-253LB and 39-253RB operators, which use the 39-529 track slider, to your original hardware. If you need new handles and covers as well, see the 39-375 and 39-376. Thanks for posting! 
Encore Dual Arm Operator, Sill Mount
Encore Dual Arm Operator, Sill Mount
39-253LB
$30.70
Encore Dual Arm Operator, Sill Mount
Encore Dual Arm Operator, Sill Mount
39-253RB
$30.70
Encore Truth Folding Handle with Cover
Encore Truth Folding Handle with Cover
39-375
$11.97
Encore Truth Folding Handle with Cover
Encore Truth Folding Handle with Cover
39-376
$11.97
Truth Hardware Track Slider
Truth Hardware Track Slider
39-529
$1.20
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