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