Open the bleed valve by one fourth of a turn and operate the brake lever (or pedal) several times until the fluid starts coming out of the bleed valve.
Unscrew the bleed valve (one fourth of a turn). Remove the filler plug (1) with diaphragm from fluid reservoir (A), loosening screws (2).
Open the bleed valve (3) by one fourth of a turn and operate the clutch lever several times until the fluid starts coming out of the bleed valve (3).