Window won't crank all the way in

A handy person from Sioux Falls, SD says:
October 31, 2020
It says TRUTH on all the parts and there are the following part numbers on the unit:
Base: 45251
Middle arm piece: 31850

Also, I can't take the cover off the crank so I think the one I need will have to have it attached.
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Bob from SWISCO responded:
November 4, 2020

Hello there. See our 39-315 and 39-316. Look over the dimensions and see if this operator type matches. The cover indeed comes built-in on these operators; for a new handle, see the 39-114L. You can re-use your old stud brackets unless they're damaged; otherwise, see the 39-545 and 39-546. 
Truth Dyad Operator
Truth Dyad Operator
39-315
$24.40
Truth Dyad Operator
Truth Dyad Operator
39-316
$24.40
Crank Handle, 11/32"
Crank Handle, 11/32"
39-114L
$4.42
Truth Snap-Stud Bracket
Truth Snap-Stud Bracket
39-545
$3.22
Truth Snap-Stud Bracket
Truth Snap-Stud Bracket
39-546
$3.22
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