This manual covers the Volvo MC90B Skid Steer Loader, designed for robust performance in various maintenance and parts identification applications. Engineered for reliability and efficiency, this machine represents a significant advancement in skid steer technology, offering superior maneuverability and power for demanding tasks. Its construction prioritizes durability, ensuring long-term operation and minimal downtime in challenging work environments. The purpose of this Service Parts Catalogue Manual is to provide comprehensive guidance for the maintenance and repair of the Volvo MC90B Skid Steer Loader, serial numbers 61001-62000 and 70001 and up. It details step-by-step instructions for self-repair, covering a wide array of systems including the engine, lubrication, fuel, cooling, hydrostatic drive, hydraulics, and various mechanical and electrical components. This manual is an essential resource for owners, mechanics, and technicians seeking to maintain the vehicle's optimal performance and achieve cost savings through effective self-repair.