Originally Posted by Jonesandrew

I think this image is from a later model than mine because it has locating pegs on the face of the hinge plates, but the main hinge pin and body of the hinge is the same. Notice how the pin is not visible from the top. I had to drill into the hinge from the top to create a hole to allow me to try and punch the pin downwards. I found the grub screw you're talking about and removed it easily. The pin appears to have been pressed into place. If my hinge had the pegs I probably wouldn't have had the problem.