John Deere 490 Excavator Technical Manual TM-1302 provides comprehensive repair, operation, and testing procedures for the 1987 model year. This authentic United States-produced manual includes detailed sections on the engine, tracks, axles, suspension, and hydraulic systems, as well as system testing and special tools. It serves as an essential resource for heavy equipment maintenance, offering technical specifications and illustrations directly from Deere & Company to ensure proper service and operational safety.