Casement parts

A quick learner from Pa/nj says:
I have a neighbor who has silver line windows you will see the model number and the tag and the photo I sent looking for new crank assemblies the old ones appear to be blown out
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Bob from SWISCO responded:

This looks a lot like our 39-226, which has a 5/16" pro hex drive. Please compare and see if you think this matches up. Note however if the entire operator has worn down, the only reliable way to match a replacement is to show us the actual assembly, including the link arm(s). We'll do our best to find what you need from there. 

A quick learner from Pa/nj says:
Here is the other photos u requested of the link arms and you already have the inside assembly picture I'm in a bit of a hurry to get with winter coming ty for everything you can do if you have something let's get it ordered as soon as you can
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Bob from SWISCO responded:

This appear to be our 39-329 and 39-330 ROTO operators. Please compare to confirm. For a handle that works with these operators, see the 39-232

A quick learner from Pa/nj says:

So does picture show a left or right hand system

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Bob from SWISCO responded:

The LH 39-329 has the spline and handle offset to the left-hand side of the operator body. That matches what is in your first batch of photos. Therefore I believe you need the 39-329

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