Patent ID: 8146232

Claim:
Method for fitting/removing a brake master cylinder (MC) which comprises a primary piston (pp) and a secondary piston (ps) which are mounted in a barrel (al 1 ) of the master cylinder with at least one spring (r 2 ) placed between the bottom (MCf) of the barrel and the secondary piston (ps) and having a function of pushing back the secondary piston (ps) and the primary piston (pp) toward the mouth (MCe) of the barrel, characterized in that the secondary spring (r 2 ) is free and in that the method comprises at least the following step: installation of a temporary retaining pin (g 1 ) in an access hole (tr 1 ) located on the periphery of the master cylinder (MC) so that the pin (g 1 ) emerges inside the barrel (al 1 ) between the mouth (MCe) of the barrel and either the primary or the secondary piston (pp or ps).