The Meritor WABCO SmartTrac Automatic Trailer Lift Axle Control System monitors suspension load by automatically raising and lowering the axle based on cargo weight. The product integrates the company's trailer roll stability support and anti-lock braking systems, resulting in a more cost-effective solution compared to stand-alone lift axles requiring separate electronic control units. The system reduces fuel costs, tire wear, vehicle downtime and labor and maintenance costs and increases wheel end and brake life. Axles can be lowered automatically when parked, and a manual switch can be added. The system can control multiple trailer lift axles and complies with U.S. DOT legal load limits. It is compatible with air ride-equipped lift axle suspension.
