Crank window

Question

I have a window where the bolt that holds the crank in has come lose. I have started the nut back into the crank shaft. It seems like I need a special tool to tighten the nut so it is flush with the crank handle. Can any one advise the window make, model, or what tool would be needed.

Dave Sr. · Accepted Answer

Once that special threaded collar comes out of the operator base, it will not hold back into the casing. It cannot be repaired or replaced, unfortunately; you will need to replace the complete operator.

I can't tell what yours is based on that picture, but take a look at the 39-312. Yours looks similar from what I can see but I'm not sure it you have the same attachments at the end of the arms.

I also see you have the mounting screws installed from the back side of the operator. What I have done in this case was to press the 33-205 threaded nuts into the mounting holes on the base of the 38-312 using a bench vise. You will need to use a 10-24 machine screw to match the threads in the 33-205.