The Bendix® LQ-2™ limiting and quick release valve is a dual function valve; the valve serves to limit brake applications and is generally used on the front or steering axle of a vehicle. The LQ-2™ valve is controlled by a TW-1™ control valve, which is mounted in the vehicle cab within reach of the driver. Placing the control valve in the “Slippery Road” position will reduce front axle service application pressure by 50%. With the control valve in the “Dry Road” position, there is no reduction of service application pressure. In addition, the LQ-2™ valve serves a quick release function, releasing air directly from the front axle chambers.