Vehicle master brake cylinder assembly bleeding device

摘要

A device is provided for bleeding entrapped gas from a master brake cylinder assembly when the latter is removed from a vehicle or prior to the assembly being installed in the vehicle and all of the outlet ports of the assembly are plugged. The device includes a support member having an upright section with a transversely extending passage formed therein. Removably mounted on one side of the upright section is the master cylinder assembly. The assembly is positioned so that an access opening which is formed in one end of the cylinder assembly to provide access to an end portion of a primary piston of the assembly, is aligned with and is adjacent to the passage in the upright section. Disposed in spaced relation to the opposite, or second, side of the upright section is an actuating unit which is mounted on the support member for selective manual adjustment between operative and inoperative modes. The actuating unit is provided with a push member wherein a portion thereof is aligned with and extends through the upright section passage and the cylinder assembly access opening and pushes against the primary piston when the unit is adjusted to an operative mode. As the primary piston is being pushed any gas entrapped within the cylinder assembly ahead of a head of the piston, is bled or purged into a brake fluid reservoir which is in communication with the cylinder assembly.