⬢Release the M3x10 screw and remove it.
⬢Remove the FS-cover it will be replaced with a new one.
⬢Release the screw holding the idler, you can leave it in the extruder.
⬢Release the M2x8 screw, carefully unplug and remove the IR filament sensor. Keep it safe, you will need the sensor for the reassembly.
Be careful with the filament sensor, do not touch the components on the PCB. Hold the PCB by its sides.
⬢Release both M3x40 screws, just few turns to create about 0.5cm (0.2inch) gap in the extruder body.
⬢Release and remove all screws holding the Hotend fan. We need to reach a screw behind the fan.