This instruction manual covers the Hatz 1B20, 1B27, 1B30, 1B40, and 1B50 engine series. These engines are designed for reliable operation and efficient performance, embodying Hatz's commitment to robust engineering and quality manufacturing. Their intended usage spans a variety of applications where dependable power is paramount.

This manual serves as a comprehensive guide for the operation and maintenance of your Hatz engine. It details essential periodical inspections and routine maintenance tasks required to ensure optimal performance and longevity. Furthermore, it includes a troubleshooting guide to assist in diagnosing and resolving issues, alongside an electrical wiring diagram for technical reference. Keeping this manual with your engine will facilitate proper care and upkeep.