Dual Arm Crank Assembly

Quick Learner
the link arm of current assembly is 3 3/4 in.
The link arm  of newer, recently ordered crank has a link arm of 4 7/16 in. which is longer and requires multiple modifications to the brackets on window and sill plate to make work. Hoping there was a model with the shorter link arm
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2 Replies
Bob
Bob from SWISCO
SWISCO
Expert

Thanks for posting. Sorry to hear the 39-031 and 39-032 didn't work for you. See our Return Policy here. See if the 39-155 and 39-156 operators are better matches. Review the specs and see what you think.

Dimensions for 39-155
Dimensions for 39-155

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