Make sure that the shaver is switched off.
1) Pull the shaving head holder off the bottom part of the shaving unit.
2) Place the retaining ring holder on the retaining ring (1), turn it anticlockwise (2) and lift it off the shaving head (3). Remove the retaining ring from the retaining ring holder and repeat this process for the other retaining rings.
3) Remove the shaving heads from the shaving head holder. Each shaving head consists of a cutter and guard.
Note: The cutters and guards are all matching sets. If you accidentally put a cutter in the wrong shaving guard, it may take several weeks before optimal shaving performance is restored.