This service repair manual covers the Volvo L90C / L90COR Wheel Loader, a robust machine designed for demanding operational environments. Engineered for reliability and performance, this wheel loader features a D70B water-cooled diesel engine and an Automatic Power Shift transmission with 4 forward and 4 reverse gears. Its substantial operating weight of approximately 15,000 kg, a standard bucket capacity of 2.5 m³, and articulated frame steering contribute to its efficiency and maneuverability in various applications. This comprehensive English-language manual provides essential information for maintaining and repairing the Volvo L90C / L90COR. It details critical procedures, technical specifications, and system overviews, including information on the electrical system, braking, and steering. Owners, technicians, and mechanics will find guidance on scheduled maintenance, fluid capacities, and troubleshooting, ensuring the continued optimal performance and longevity of the equipment.