Design and operation of Kamaz parking (spare) brake devices
The parking brake is designed to hold a stationary vehicle on a horizontal section, path or slope specified by the rules of the road
Parking brake: 1 – reverse-acting brake valve with manual control; 2 – accelerator valve; 3 – compressed air cylinder; 4 – two-line valve; 5 – control valve; 6 – brake chambers with spring energy accumulator
The parking brake drive circuit (Fig. 1) consists of a part of a double safety valve, two air receivers with a total capacity of 40 liters, a control outlet valve, a manual parking brake valve, an accelerator valve, a part of a dual-line bypass valve, four spring energy accumulators, and brake chambers , pipelines and hoses between them.
The parking brake drive circuit operates on the reverse principle, when the brake is released when compressed air is supplied, and the brake is released when compressed air is released.