crank mechanism for Pozzi window

A home owner from albuquerque says:
I need a right hand crank mechanism for a Pozzi window installed in 1986. The mechanism has a ribbed post for the crank handle plus 3 arms that articlate when the crank is turned and thus open the window. thanks for your quick reply. The window itself is about 30" x 60". If you need more information let me know.
A user submited photo of window crank
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Dave Sr. from SWISCO responded:
Thanks for contacting us, and for the great pictures! These operators appear to be very similar to our 39-031 & 39-032 EntryGard Dual Arm Operator. Compare the dimensions and let us know if they differ in any way.
A quick learner says:
Can you replace just the gear that the actual crank fit on? The two inside gears are fine.

On a Pozzi do you have to take the wood Bottom wood off to unscrew the crank mechanism? If so is there an easy way to do it?
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Tom from SWISCO responded:

You won't be able to replace just the gears, no. If any of the gears are broken, including the worm gear, then your only solution is to buy a new operator.

You do have to take that wood still trim off, yes. We actually show how on the video you see on the 39-031 and 39-032 store pages. I will also post it here for your convenience. I personally think it's very easy to do, you just have to take your time so that you don't break the wood.

A home owner from Park city Utah says:
Hi Tom,

Thanks so much. It really does not look that difficult.

How can I identify which crank to purchase. Is there a identifying number on the mechanism?
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Tom from SWISCO responded:

Those numbers can help, but they're not often reliable. I actually thought you were the original customer who started this thread, I didn't realize you were someone new. How did you come across this thread? If you got here by searching the numbers on your operator then there's a chance you have the 39-031 and 39-032 operators that Dave recommended in his first response. You'll have to look over our photos and dimensions to confirm that everything matches.

If your operator is different, however, then we'll need photos and dimensions in order to find a good match.

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