Remove fan cover Undo bracket bolt under the PCB undo second bolt under PCB Separate extruder from the hotend bracket undo the hotend bolts pull out PTFE tube. it can be replaced with 4mm OD and 2mm ID tube Separate Hotend from the bracket If the heatsink and heatbreak is blocked it can be drilled out with 1.5mm drill bit. Make sure that the nozzle is removed
