1. Prepare a container(bottle/cup/bucket is ok) to collect the brake fluid flushed out.
2. Open the bleed nipple of the caliper/wheel cylinders.
3. Connect the bleed nipple with one end of the hose and secure with hose clip.
4. Loose the brake bleeder screw a little, and then start to slowly pump with the brake lever/pedal.
5. Check the flushed fluid state until no bubbles in the line and the color has been from dark to clean as the new brake fluid.
6. Check the fluid level is appropriate in the master cylinder.
7. Ensure to shut the bleed nipple securely, close the master cylinder and take off the hose.
8. Check and ensure the brake lever/pedal operates ok.