crank extension to get past window shutters

Home Owner from Homer Glen, Illinois

May 18, 2014 10:33 pm

Hello, I had window shutters put in and I need an extention for my crank to come out past the shutters to turn. Looking at your 4" crank are they pretty standard for all casement window crankers??

4 Replies

Tom from SWISCO

May 19, 2014 3:25 pm

No, it really depends on what operator you have. What is the size of the spline for your existing handle? Basically, that's the handle's hole.

Home Owner from Homer Glen

May 19, 2014 6:22 pm

Thank you for writing back but I honestly have no clue what that would be. I am going to guess here that I think I measured this right and say 11 mm in diameter??? Does that sound right?? They are Norco windows. Old Norco windows. Without all this conversation, I was just gonna order the 39-157 extension.
Thank you so much!!

Tom from SWISCO

May 20, 2014 10:43 am

I'm not sure what you measured, so I can't say. The 39-157 has and accepts an 11/32" spline. For example, it would work with our 39-114L, which also has an 11/32" spline. Check out the image below to see what you would measure for the 39-114L. What is this for your own handle, in inches?

Alternate view of the gear hole