This comprehensive Liebherr R964C and R974C Service Repair Manual provides detailed instructions and technical specifications for maintaining and repairing these powerful excavators. The manual covers a wide range of topics, including:

* **General Information:** Get familiar with the excavator's design, safety precautions, and operating procedures.
* **Engine:** Dive into the intricacies of engine systems, covering components like the fuel system, cooling system, and electrical system. Learn how to diagnose and troubleshoot engine problems, perform maintenance tasks, and conduct repairs.
* **Hydraulic System:** Understand the complexities of the hydraulic system, including pumps, valves, cylinders, and hoses. Find detailed instructions on troubleshooting and repairing hydraulic issues, ensuring optimal performance.
* **Undercarriage:** Explore the construction and operation of the undercarriage, encompassing tracks, rollers, sprockets, and other components. Learn how to perform routine maintenance, identify potential problems, and address undercarriage repairs.
* **Electrical System:** Gain a comprehensive understanding of the electrical system, covering wiring diagrams, troubleshooting procedures, and component repairs.
* **Cab & Controls:** Discover the intricacies of the operator cab, including controls, instrumentation, and safety features. Learn how to diagnose and repair issues with the cab and its various components.
* **Troubleshooting & Diagnostics:** Develop your troubleshooting skills with detailed information on identifying problems, using diagnostic tools, and implementing effective repair strategies.

This manual is an essential resource for technicians, mechanics, and operators seeking to maintain, repair, and optimize the performance of Liebherr R964C and R974C excavators. It provides clear instructions, detailed diagrams, and comprehensive information to ensure efficient and effective repair and maintenance.

The Liebherr R964C and R974C are powerful hydraulic excavators renowned for their exceptional performance and reliability in demanding construction and mining applications. Both models belong to the upper tier of Liebherr's excavator lineup, designed to tackle the most challenging tasks with ease. The R964C boasts an operating weight of 94 tons, while the larger R974C tips the scales at a massive 120 tons. Both machines are powered by robust diesel engines offering high torque and power output, ensuring efficient operation even under the heaviest loads. Their robust construction, featuring reinforced frames and durable components, guarantees long-lasting service life even in the harshest environments.

These excavators are equipped with advanced hydraulic systems designed to deliver precise control and exceptional digging force. The R964C and R974C feature a wide range of attachments, including various buckets, breakers, and grapples, enabling them to handle diverse tasks from excavation and material handling to demolition and loading. Their spacious and ergonomically designed operator cabins provide a comfortable and safe working environment, ensuring operator productivity and reducing fatigue. Both models incorporate advanced safety features, including robust safety systems, emergency shut-off mechanisms, and clear visibility from the cabin, further enhancing operator safety and operational efficiency.