Driven unit for a continuously-variable-ratio drive, and relative drive belt removal method

6) A method of removing a V-shaped belt (C) from a continuously-variable-ratio drive (8) having a driven unit (12) comprising a fixed half-pulley assembly (23) having a fixed half-pulley (13b) connected to an output member (9) of the drive (8);

• a movable half-pulley assembly (24) having a movable half-pulley (13a) mounted to slide axially with respect to said fixed half-pulley (13b) to form with it a V-shaped groove (15) of variable width for said belt (C);
• and elastic means (17) which force said half-pulleys (13a, 13b) towards each other to keep said half-pulleys (13a, 13b) in contact with said belt (C);
• said method being characterized by the steps of securing a parting tool (41) to an axial through seat (35) in said fixed half-pulley assembly (23);
• and exerting axial thrust, by means of said parting tool (41), on a surface (36) of said movable half-pulley assembly (24) axially facing said seat (35) in said fixed half-pulley assembly (23), so as to part said half-pulleys (13a, 13b) in opposition to said elastic means (17).