This service manual provides comprehensive information for the Liebherr A900C-ZW EDC F Litronic Hydraulic Excavator, specifically for serial numbers 37728 and up. Designed for demanding industrial applications, this excavator is engineered for robust performance and reliability. Its advanced Litronic system and specialized features, such as the two-speed gearbox and rail roader installations, ensure efficient operation across a variety of construction and material handling tasks. The A 900 C ZW Litronic models, including types 1033, 1384, and 1385, represent Liebherr's commitment to quality and operational excellence in heavy machinery. This manual serves as an essential resource for maintaining and repairing your Liebherr A900C-ZW EDC F Litronic Hydraulic Excavator. It details general information, tools, technical data, and maintenance guidelines, alongside in-depth procedures for key systems including the engine, hydraulic system, electrical system, and braking system. Coverage extends to specialized components like the swing gear, swing ring, and steering, as well as the cab and air conditioning. This step-by-step guide is designed to empower owners and technicians to perform necessary service and repairs effectively, ensuring the longevity and optimal performance of the equipment.