This comprehensive Hitachi Hydraulic Excavator Zaxis ZX 120 Service Repair Manual provides essential information for technicians, mechanics, and anyone interested in repairing or understanding this equipment. It contains detailed technical data and specifications, directly from the manufacturer, ensuring accuracy and reliability. The manual covers a wide range of topics, including: * **General Information:** Covers the basics of the ZX 120, including its design, operation, and safety procedures. * **Fuel System:** Provides detailed information on the fuel system, including components, operation, diagnostics, and troubleshooting. * **Chassis:** Offers comprehensive information on the chassis, including its construction, suspension, steering, brakes, and wheels. * **Cooling System:** Explains the cooling system components, operation, maintenance, and troubleshooting. * **Engine Top End:** Explains the engine's top end components, including the cylinder head, valves, camshaft, and timing system. * **Engine:** Provides detailed information on the engine, including its operation, maintenance, and troubleshooting. * **Clutch:** Explains the clutch, including its operation, maintenance, and adjustment. * **Engine Lubrication System:** Details the engine lubrication system, including components, operation, and maintenance. * **Engine Removal/Installation:** Provides step-by-step instructions for safely removing and installing the engine. * **Drive:** Covers the drive system, including the transmission, axles, and final drives. * **Transmission:** Provides detailed information on the transmission system, including its operation, maintenance, and troubleshooting. * **Wheels/Tires:** Explains the wheels and tires, including their specifications, maintenance, and troubleshooting. * **Final Drive:** Covers the final drive system, including its components, operation, and maintenance. * **Brakes:** Details the brake system, including its components, operation, maintenance, and troubleshooting. * **Suspension:** Explains the suspension system, including its components, operation, and maintenance. * **Steering:** Provides detailed information on the steering system, including its components, operation, and maintenance. * **Frame:** Covers the frame, including its construction, maintenance, and troubleshooting. * **Electrical System:** Offers a detailed overview of the electrical system, including wiring diagrams, components, operation, and troubleshooting. This manual provides a wealth of information, allowing users to efficiently diagnose, repair, and maintain the Hitachi Hydraulic Excavator Zaxis ZX 120.

The Hitachi ZAXIS ZX120 is a robust and versatile hydraulic excavator designed for a wide range of construction and earthmoving tasks. This 20-ton class excavator is renowned for its powerful performance, precise control, and long-lasting durability. It is powered by a fuel-efficient diesel engine that delivers ample torque for challenging excavation and lifting operations. The ZX120 boasts a strong and stable undercarriage, featuring durable steel tracks and a robust swing mechanism. This combination provides excellent stability and maneuverability, allowing operators to navigate even the most difficult terrain with ease. The excavator's hydraulic system is engineered for efficiency and responsiveness, delivering precise control over the boom, arm, and bucket. The ZAXIS ZX120 is equipped with a spacious and comfortable cab, designed to enhance operator productivity and comfort. Operators benefit from excellent visibility thanks to large windows and strategically placed mirrors. The ergonomic controls and intuitive interface facilitate precise operation and minimize fatigue during prolonged use. The ZX120 also prioritizes safety with numerous features, including an emergency shutdown system, a robust safety cage, and a comprehensive warning system. These features contribute to a safe and productive working environment for the operator. The Hitachi ZAXIS ZX120 is a reliable and efficient excavator that meets the demands of various construction projects. Its powerful engine, robust construction, and advanced hydraulic system make it an ideal choice for excavating trenches, loading trucks, and performing land clearing operations. This excavator's commitment to operator comfort and safety ensures maximum productivity while prioritizing the well-being of those operating the machine.