Metal windows. Truly Operators
Hello! It's tough to tell exactly what you have, but I'm certain we have at least something that matches. I recommend starting with our 39-027E and 39-028E operators. You'll need to ensure that the arm lengths are the same as yours and that the plastic bearing at the end of the arm is the same style as yours.
As for an installation video, we don't have one on these in particular. Your part is very, very easy to remove though. You first have to open the window so that the arm can come down to the sash track, then simply unscrew the base from the sill. The video below demonstrates a somewhat more complicated operator, but some of the principles remain the same. I hope you find it helpful.
I was afraid this might be the case. That's why I always recommend to check the bearing at the end of the arm to ensure that it matches. What you have here is a very skinny steel wheel instead of the thicker plastic bearing that comes with the 39-027E and 39-028E.
I recommend the 39-365 and 39-365 instead. These have the same bearing at the end of the arm and should repair your window. You can return the operators you already purchased for a refund. See our return policy here.