This manual covers Case 584D, 585D, and 586D models, produced for all years. These diesel-powered machines are engineered for reliable performance in demanding applications. Key features include power steering for enhanced maneuverability and a Roll-Over Protective Structure (ROPS) for operator safety. The hydrostatic transmission ensures smooth operation, and the hydraulic lever controls provide precise command over lifting functions. These vehicles are designed to offer robust utility and dependable service across a range of operational needs. The purpose of this English-language Operator Manual and Service Repair Manual is to provide comprehensive guidance for the maintenance and repair of your Case equipment. It details essential information on scheduled maintenance, fluid capacities, and operational controls. Furthermore, it includes technical specifications, troubleshooting procedures, and safety guidelines to ensure the longevity and optimal performance of the vehicle. This manual is an indispensable resource for owners, mechanics, and technicians seeking to maintain and service these Case models effectively.