This Serviceman Handbook provides comprehensive information for Kobelco Hydraulic Excavators, covering models SK60v, SKlOOv, SK120v, SK120LCV, SK200v, SK200LCV, SK220v, and SK220LCV. These machines are engineered for demanding operational environments, reflecting Kobelco's commitment to robust design and reliable performance. This manual is essential for understanding the intricate systems that power these excavators and ensure their continued efficiency and longevity in various construction and earthmoving applications. The purpose of this handbook is to serve as a definitive resource for maintenance and repair. It details critical procedures and specifications, including general dimensions, machine specifications, performance data, and component weights. Furthermore, it covers essential maintenance aspects such as lubrication, coolant capacities, filter lists, and specified oils and greases. Technical sections provide guidance on measuring and adjusting pressure, hydraulic system diagrams, electrical circuit diagrams, and maintenance standards, equipping technicians and owners with the knowledge required for effective upkeep and troubleshooting.