This manual covers the Volvo EC290B NLC, a robust tracked excavator powered by a Volvo D7E diesel engine, delivering 153 kW (205 hp) from its 7.1-liter displacement. Designed for demanding construction and earthmoving applications, this machine features a hydrostatic transmission and an operating weight of approximately 29,000 kg. Its substantial dimensions, including a transport length of 10.13 meters and a standard bucket capacity of 1.45 m³, highlight its capabilities for significant excavation tasks, with a maximum digging depth of 6.70 meters and a reach of 10.03 meters. This comprehensive service manual provides essential information for the maintenance and repair of your Volvo EC290B NLC. It details critical procedures, technical specifications, and operational guidelines necessary to ensure optimal performance and longevity. Covered topics include engine and hydraulic oil capacities, fuel system information, and lubrication points, alongside troubleshooting guidance and safety protocols. This resource is designed to assist owners, technicians, and mechanics in performing routine servicing and complex repairs effectively.