39-031 and 39-032 will not work in my window

I tried to trace the numbers L30841 and 30842, but could not find them. Did you compare the dimensions of your old operators to the 39-031 and 39-032? If so, were the sizes identical, or did they differ in any way? Also make sure that there are no obstructions in the track.

If you want please send us a photo of your original operator next to the new one you purchased. Maybe that will help us identify the problem. You may also have our 39-155 and 39-156, which are similar but have a different sized link arm.

We show the orientation of the arms during installation in our video. It doesn't really matter how they're positioned when you install it, anyway, since you can adjust them at any point to get them in the right position.

When you say the window won't close all the way, how extreme is the problem? Is it just the last few inches, or are we talking about a wide open window? If it's just a few inches, check to make sure there aren't any protruding screws or pieces of debris that might be interfering with the operation of the sash.

If it's more extreme, do you think the problem could be that you're using the operators on the wrong sides of the window? I know they look pretty similar so it can be confusing as to which side they need to be installed.

That is strange. Can you take a few pictures of these new operators installed and show us exactly how it bumps against the outside of the window? Maybe then we can get to the bottom of this mystery!

Ah, I see. The "down" bend on the 39-031 helps to keep the link arm on the stud bracket if the slide clip disengages. We find that it works better, and have never had any problems using it to replace one with an "up" bend. I find it peculiar that it's interfering with your window, but I'm not totally surprised. If it does cause a problem, you might be able to adjust your sash bracket a little to make up for it. Could that work?

Ah, I see. The only other thing that comes to mind is swapping the link arm between the old and new operator. You could reinstall the old link arm on the new operator with the 62-014 rivet.