Need Correct Arm for Truth 31704

Question

Hello,

I recently attempted to replace the operator arm for a Truth 31704 awning window. The gear in the crank of the old one had become stripped and no longer aligned with the gear on the arm assembly. I purchased the 39-239B from you and it appears to be an exact match with the broken one, however the window does not close all the way as the arms will not fully retract into the base of the sill (see pictures). My guess is that the damage to the old one was caused by repeatedly forcing a misalignment of the operating arm by forcing the window closed. I'm wondering if the old operator arm which broke, was never the correct one to begin with (it was there when I bought the house). I am hoping you can recommend either the correct product, or some other fix for this issue.

Thank you.

Bob · Accepted Answer

Is there any other identical awning window in the house? If so, does it work correctly, and can you confirm if it's the 39-239B? If so, then I'm not sure if an incorrect operator is the issue--at any rate I am not sure if it would connect to the window properly at all without some heavy modification if it was not. Remove the operator and try manually opening and closing the window. Does it seem to struggle to move? If so, you might need new window hinges. See if either our 36-048 or 36-049 match what you need.