Lowering Vehicle

The body is forced upward when an excess load is removed from the rear of the vehicle. This causes the sensor actuating arm to rotate downward. The downward rotation of the actuating arm activates the internal timing circuit. The sensor completes the solenoid valve circuit to ground after an initial delay of 20 seconds. With the solenoid valve energized, the air begins to exhaust out of the shock absorbers back through the air dryer, the solenoid valve, the air compressor filter and into the atmosphere. The sensor actuating arm rotates upward toward its original position as the rear of the vehicle lowers. When the vehicle body reaches its original height +/- 4 mm (+/- 0.16 in), the sensor opens the solenoid circuit, de-energizing the solenoid valve, which prevents any further air from escaping.