S6 brake valves modulate the hydraulic pressure generated from an already existing source of energy of the machine and incoming to the brakes. The brake pedal controls such valves, positioned right under the same pedal.
The power applied from the operator on the pedal directly modulates the energy already present in the system. Depending on the brake type the constructor wants (soft, hard, other) components are customized in order to obtain the exact braking.
