VACUUM SERVO BREAKE

All about engine; Heavy Vehicle Hydraulic Brake system For excessive Performance And  To get, breaking pressure, given master cylinder and wheel cylinders bigger size, from also  light vehicle,and to get work, the driVer  should not have Enough power  for brake operated,That thing, keeping a mind, The planted an unit The unit is (servo)  and the servo unit planted First before the master cylinder, If the Imposes driver , A littile power For breaking,then That power do it, increases (servo) unit
and does operated master cylinder , Master cylinders Are organized By Vacuum in vacuum servo That is why Vacuum servo brake It is called

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