303.13.0001.02 Repair Kit for Trailer Height Adjustment Valves

What does a repair kit do?

A trailer height adjustment valve repair kit is an essential component for maintaining the pneumatic leveling systems in heavy commercial vehicles. This kit provides the necessary components to restore the functionality of height control valves, ensuring the vehicle maintains a stable stance under varying loads.

Compatible vehicles and engines

This repair kit is compatible with Volvo models including F10, F12, FL10, B10B, B12, F7, B10M, FL12, N10, N12, NL10, and NL12, as well as Ford Trucks Cargo series. It is also fitted to MAN, Mercedes-Benz, Scania, DAF, Renault Trucks, and Krone vehicles. The kit is designed to work with WABCO systems to ensure reliable pneumatic operation.

Installation and maintenance

When performing maintenance, technicians should depressurize the system completely to avoid injury. It is critical to mark the existing arm angle before disassembly to ensure correct resetting after installation. Cleaning all surfaces of oil and dust residue before seating new seals will prevent future leaks.

Troubleshooting and selection

Regular inspection of the valve arm and air ports can prevent uneven tire wear and chassis instability. For precise fitment and torque specifications, always consult the vehicle's service manual during installation.