This service manual covers the Kobelco SK Series Excavator, Mark V generation. These excavators are engineered for robust performance and reliability in demanding construction and excavation environments. Featuring a direct injection diesel engine and a hydrostatic transmission with variable displacement hydraulic motors, the SK Series is designed for efficient power delivery and precise control. The machine's construction includes a ROPS/FOPS certified cab for operator safety and a comprehensive lubrication system to ensure longevity of critical components like the boom, arm, and bucket. This handbook provides essential information for the maintenance, repair, and operation of your Kobelco SK Series Excavator. It details scheduled maintenance intervals, fluid capacities for engine oil, hydraulic oil, and coolant, and lubrication procedures for all grease points. Technical specifications, including engine type, power output variations across models, and undercarriage options, are also included. This manual serves as a critical resource for owners, operators, and technicians to ensure the optimal performance and extended service life of the equipment.