Awning window adjustment

A quick learner from Jacksonville Florida says:
March 23, 2019
I have several aluminum 4 window pane tall awning windows (circa 1958-ish) which I am having trouble adjusting to fully close. After cleaning the side slides and the bottom rotating rod, the upper 3 panes close tightly, however, the bottom pane remains open approximately 1/4" after the operator is fully closed. I've noticed the hinge covers on the inside of the frames may have something to do with the adjustment but haven't quite figured it out. Any information would be helpful.
Thank you,
David
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Dave Sr. from SWISCO responded:
March 26, 2019

Thanks for writing in. I'm not entirely sure what you're speaking of without seeing pictures, but it sounds like those "hinge" covers on the inside might be the key. See if you can loosen them up and move the cover upward to see if that cures the problem. Also, those covers might need to be removed completely so to access some type of adjustment on the sides of the window. Take note in some windows which had been forced open at the bottom might have "bent" linkage and will need to straightened out or replaced if still available.
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