Gears slip

A home owner from Des Moines Iowa says:

June 16, 2023

Gears slip as opening window and closing, the handle assembly gear seems ok, all I see on crank is stamped word Truth 30818. Right side is that all I need to replace crank assembly.

Please not this is a right side crank needing replaced but the photo is left side crank

Thumbnail of the uploaded file named C418B5D1-70F8-46F9-AF4B-29B4704D01A3.jpeg

Thumbnail of the uploaded file named 032B9054-6BAD-4A5D-A5BE-DB8A0D5A006F.jpeg

Bob from SWISCO responded:

June 16, 2023

Thanks for writing in. Start by looking at our 39-413 and its opposite-handed counterpart, the 39-412. These are straight arm operators replete with that similar 'offset' in the arm that your old mechanism features. Compare the diagrams below with your existing hardware to see if it matches what you need. Let me know if the measurements differ at all, and if so, by how much.

Alternate image for 39-413

Alternate view of 39-413

Alternate image for 39-412

Alternate view of 39-412

Offset Single Arm Operator, 9-1/2

39-413

$27.20

Offset Single Arm Operator, 9-1/2

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