1. Remove the hard seed and cut into right size.
2. Close the lever, put them in the machine, and operate it.
3. When extraction is almost finished, place the lever in half-opened position to release the compressed pulp.
You can find frozen mangos which are already trimmed on the mart. If you make juice with frozen mangos, defrost enough to use it. If you use mangos, make sure to remove the hard seed. The hard seed might cause component damage.