This service repair workshop manual provides comprehensive guidance for the Lombardini LDW 422 CRS engine. Designed for repair and maintenance, this manual details complete engine disassembly and reassembly procedures. It is intended to support owners and technicians in understanding and servicing this specific engine model, ensuring its optimal performance and longevity through detailed technical information and operational instructions. The manual covers a wide range of essential topics, including general remarks and safety information, technical specifications, engine electrical control, storage and conservation, overhauling and tuning, tightening torques, and the use of special tools. With step-by-step instructions accompanied by detailed diagrams, this resource facilitates accurate diagnosis and repair. The English-language manual is printable and designed to assist all users in maintaining and servicing the Lombardini LDW 422 CRS engine effectively.