This manual covers the Lombardini LDW 422 engine, a diesel internal combustion engine designed for service and repair. Known for its robust engineering, the LDW 422 is built to deliver reliable performance in its intended applications. This workshop manual provides comprehensive information to ensure optimal operation and longevity of your engine. The purpose of this English-language Service Repair Workshop Manual is to guide owners, mechanics, and technicians through all aspects of engine maintenance and repair. It includes detailed sections on troubleshooting, technical specifications such as torque values and timing diagrams, safety instructions, recommended lubricants, and the proper use of tools. This manual is designed to facilitate efficient and accurate service procedures.