This service manual covers the LIEBHERR R 900, R 902, R 912, R 922, R 932, and R 942 LITRONIC Crawler Excavator models. These robust machines are engineered for demanding construction and industrial applications, offering exceptional reliability and performance. Their advanced design and durable construction ensure efficient operation and longevity in challenging environments, making them a preferred choice for professionals seeking powerful and dependable excavation equipment. This comprehensive manual provides detailed instructions for the maintenance, repair, and troubleshooting of your LIEBHERR crawler excavator. It includes essential information on general procedures, tools, technical data, and specific system overhauls such as the engine, hydraulic system, electrical system, swing gear, travel gear, and undercarriage. By following the clear, step-by-step guidance and utilizing the included diagrams, owners and technicians can effectively diagnose issues, perform routine servicing, and ensure the optimal functioning and longevity of their equipment.