Anderson awning window operator

A quick learner from Arlington, MA says:
February 7, 2017
I was speaking with one of your technical specialist yesterday about an Anderson awning window operator and he suggested I send a few pictures. The operator is very similar to your 39-389, with the following differences:

1) The two mounting holes on the visible portion of the operator are missing on my operator. So your version has 5 total mounting screw holes, and mine has three.

2) The distance between the 2 inside mounting holes on your model is 4 1/8" and mine is 4 1/16".

3) The length of the arm on your version is 11" to the rivet, and mine is 10 1/4".

Again, due to these differences your rep suggested I send pictures to ensure your model will work. Please let me know what you discover.

Tom
User submitted photos of a window operator.
A contractor from Arlington, MA says:
February 7, 2017
One point to clarify on my original submission. Your part number is 39-390 that I was referencing, not 39-389. I also included another photo with the Anderson Window logo on the arm.

Thanks again,

Tom
User submitted photos of a window operator.
Profile picture of Dave Sr.
Dave Sr. from SWISCO responded:
February 14, 2017
Looking at your photos and comparing them to the 39-090, I'm not sure if the mounting screw holes would line up exactly with yours. You might need to install new holes in the window sill. Also check to see if you have the width to install the 31" sash bar bracket. The arms, when fully closed, measure 27" across.
Awning Operator Kit, Long Arm
Awning Operator Kit, Long Arm
39-389
$85.20
Awning Operator Kit, Short Arm
Awning Operator Kit, Short Arm
39-390
$82.70
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