This service repair workshop manual covers the Lombardini FOCS Series engines for all models and all repairs. The FOCS Series engines are known for their robust engineering and reliability, designed for demanding applications. This manual provides comprehensive information to ensure these engines operate at peak performance throughout their service life. This manual is your essential guide for maintaining, servicing, diagnosing, and repairing your Lombardini FOCS Series engine. It contains complete step-by-step instructions, detailed diagrams, illustrations, and wiring schematics to assist owners, mechanics, and technicians. The content is organized to cover all aspects of engine care, from routine maintenance procedures to in-depth troubleshooting, ensuring you have the knowledge to keep your engine running efficiently and safely.