Hello,
I have a window crank that I believe is similar to your part number 39-090. My problem is I
39-090 Crank spline

Home Owner from USA
Nov 3, 2014 11:56 am
4 Replies

Tom from SWISCO
Nov 5, 2014 10:37 am


I'm sorry, it looks like your post was cut off. Can you please try again? I'd be happy to help you with whatever you need.

Home Owner from Wisconsin
Nov 5, 2014 11:34 am
Here's the rest of the question. I have a crank that is similar to the one above. However, mine is missing the little bolt on the bottom that connects the crank to the arm. I cant tell if there is a part number or if that piece is sold individually. In the pictures it appears to be a metal pice that either screws in or snaps into place.

Tom from SWISCO
Nov 5, 2014 11:45 am


Ah, I see. I'm afraid this part is not available separately. Since it is machine fit into the operator at the factory, once it falls out the entire operator needs to be replaced. It means that the gears have stripped out, which is not something that can be repaired.
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