The automatic brake force regulator is designed to automatically regulate the braking forces on the wheels of the rear bogie depending on changes in the axial load on them and accelerating the release of the wheels of this bogie
The triple safety valve serves to divide the line from the compressor into three autonomous circuits - two main (front axle wheel brake drive and rear bogie wheel brake drive) and one additional (emergency brake release system drive), as well as to automatically shut off the damaged circuit with in order to maintain pressure in serviceable circuits
The injection pump supplies the injector of each cylinder with strictly dosed portions of fuel under high pressure in accordance with the operating procedure and the specified mode