This manual covers the CASE CX290B Crawler Excavator, a robust diesel-powered machine designed for demanding construction and earthmoving applications. Featuring a common rail injection fuel system and likely Tier 3/Stage IIIA emissions compliance, this excavator is engineered for efficiency and reliability. Its hydrostatic transmission with electronic control and 2-speed capability, combined with variable displacement piston pumps for hydraulics, ensures precise operation and powerful performance. With an approximate operating weight of 28900 kg and a track shoe width of 600 mm, it offers stability and traction on various job sites. The ROPS/FOPS certified cab, potentially equipped with air conditioning, provides operator safety and comfort during extended use. This Service Repair Manual in English provides comprehensive guidance for maintaining and repairing the CASE CX290B Crawler Excavator. It details essential procedures, technical specifications, and troubleshooting information necessary for optimal performance and longevity. Key areas covered include engine specifications, transmission and drivetrain components, hydraulic system details, undercarriage maintenance, and cab features. The manual outlines typical maintenance intervals, such as engine oil filter changes every 250 hours and hydraulic oil filter changes every 500 hours. This resource is invaluable for owners, technicians, and mechanics seeking to ensure the continued operational integrity and efficiency of their equipment.