This manual pertains to the A66 Wheel Loader. While specific production years are not detailed, this equipment is engineered for demanding operational environments. Its robust construction and reliable performance are hallmarks of its design, intended to maximize productivity and efficiency in various industrial and construction applications. This comprehensive Parts Service Manual provides essential data, characteristics, and instructions for the repair, maintenance, adjustments, service, removal, and installation of all components. It includes detailed pictorial diagrams, exploded views, drawings, and photographs, alongside special notes, important points, service data, precautions, wear limits, and tool references. The manual also offers guidance on troubleshooting, diagnosis, testing, and adjustments, ensuring that owners and technicians can effectively maintain and repair the vehicle, adhering to recommended practices and safety guidelines.