Syad Window operator.

A quick learner from Dayton, Oh says:
I ordered one 39-035 and one 39-036. When trying to install the mechanism I discovered the extension arm is shorter than the original. Is there a different model I should be looking for?
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Emily from SWISCO responded:

Hi there!

Can you show us your original operator? We'll need to see it uninstalled from the window so that we can see the entire mechanism, arms and all.

Thank you! 

A quick learner from Dayton, Oh says:
What do I need to measure to make sure I order the correct replacement operator?
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Casey from SWISCO responded:

Hello,

As Emily mentioned in her original response, we'll need to see a photo of your original operator, including the arms that move the sash, to compare to our inventory. Also, please write out your exact measurement as compared to the 3-15/16" link arm shown below. Thank you!

Dimensions for 39-035
Dimensions for 39-035
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