This comprehensive service manual for the Kobelco Mark III SK 120 Hydraulic Excavator is a valuable resource for technicians, mechanics, and anyone involved in maintaining and repairing this heavy equipment. The manual provides detailed information on a wide range of topics, including general maintenance procedures, troubleshooting guides, and in-depth repair instructions.

The manual covers essential aspects of the excavator's systems, such as the engine, transmission, brake system, wiring diagrams, electrical system, suspension, cooling system, fuel injection, and fuel system. It also includes detailed information on the emission system, heater and air conditioning, engine control system, chassis and body, restraint system, interior, differential and drive, and axle.

Furthermore, the manual offers a comprehensive guide to operation, covering topics like pre-operation checks, starting and stopping the engine, operating the working device, machine travel, efficient working methods, operation in special work sites, normal excavator operation, attachment lowering patterns, storage, and RCV lever operating patterns.

The manual also covers transportation procedures, including preparation for transportation, dimensions and weight, loading the machine, fixing the machine, and loading and unloading by crane.

Finally, the manual provides a detailed section on maintenance, including instructions, tightening torques, specifications for fluids and lubricants, a maintenance checklist, a maintenance chart, service instructions, and information on the electrical system and air conditioning system.

The Kobelco Mark III SK 120 Hydraulic Excavator is a powerful and versatile machine designed for a wide range of construction and demolition tasks. Known for its reliability and efficiency, the SK 120 is a popular choice among contractors and operators alike. This model features a robust and durable construction, incorporating advanced hydraulic systems and a powerful engine to deliver exceptional performance. Equipped with a spacious and ergonomically designed cab, the operator enjoys a comfortable and safe working environment. The SK 120's sophisticated control systems provide precise control and responsiveness, enhancing productivity and minimizing operator fatigue.

The Kobelco Mark III SK 120 boasts a range of features that contribute to its overall efficiency and performance. Its advanced hydraulic system delivers smooth and powerful operation, enabling the excavator to handle heavy loads with ease. The machine's powerful engine ensures ample torque and horsepower, allowing for efficient digging and lifting operations. Additionally, the SK 120 features a low fuel consumption rate, reducing operating costs and minimizing environmental impact. The excavator's versatility is further enhanced by its compatibility with a wide range of attachments, including buckets, breakers, and grapples, making it suitable for various applications. Whether it's excavating trenches, loading trucks, or demolishing structures, the Kobelco Mark III SK 120 is a reliable and efficient workhorse, ready to tackle demanding tasks with precision and power.