K8200 Unaccessible Extruder

At original design there is a hole in the plastic cover for filament. If filament breaks below the hole or it is out, then I had to disassemble the complete extruder. So I was very unhappy about this system. At my homemade filament I have more often filament problems and it will break. Now I can remove stubs from under the hobbed bolt and clean.
Add a metal tube ( D=6mm, d=4mm, L=23mm) in the screw hole to be a hinge.