Awning window replacement crank mechanism

Question

The crank on our awning window doesn't operate - crank won't catch internally and just spins loosely inside the slot. It looks like the previous owner did a DIY fix by drilling partway through the mechanism but if that worked at one point, it doesn't anymore. I think we may need to replace the whole operator mechanism although the arms appear to be fully functional. Only stamps or marking are numbers on the inside of the crank handle, "45054" and shown in the picture "TRUTH" with an arrow pointing towards the inside.

Emily · Accepted Answer

Hi there!

It appears the worm gear came out with your handle. When this happens, I'm afraid it means the entire operator has broken down and needs to be replaced. Start by taking a look at our 39-083 and 39-140. Compare our dimensions with yours to see if one of these matches up to your original assembly.