Service brakes are disassembled during maintenance and troubleshooting (oiling, wear and tear of brake pad linings, wear or damage to the sealing collars of wheel cylinders, breakage of the tension spring, etc.)
Drum-type parking brake with mechanical drive (Fig. 1)
The parking brake drive is connected by lever and rod to lever 13 of the brake valve, which ensures that when the vehicle is braked with the parking brake, the service brake system of the trailer (semi-trailer) is activated.
The auxiliary brake consists of a drive and two actuators installed in the connector of the exhaust pipes of the muffler