L-shaped hex wrench
filament inlet
Remove four screws
Place the entire CFS box upright, manually pull out the entire filament inlet
Remove the cable cover, unplug the cable from the motor adapter board
Locate the filament inlet that needs to be replaced, unscrew the fixing screws, and remove two cable wires.
Remove the filament inlet to be replaced along the direction of the PTFE tube.
Replace CFS Independent Filament Inlet Module
https://youtu.be/hjwffUK-iL8