The Komatsu WA380 Galeo series wheel loader, specifically the WA380-6 and WA380-6H models, represents a robust and reliable piece of heavy machinery engineered for demanding work environments. Powered by the Komatsu SAA6D107E-1 engine, a turbocharged, intercooled, direct injection diesel engine with a displacement of 6.67 L, this loader delivers 156 net horsepower, meeting Tier 3/EU Stage III A emission standards. Its advanced transmission system, K-ATLAS, offers electronically controlled powershift with both automatic and manual modes, ensuring efficient operation across its four forward and four reverse gears. With an operating weight of 22,350 kg and impressive lifting capacities, the WA380 is designed for versatility and performance in construction, mining, and material handling applications. This comprehensive Service Repair Workshop Manual provides detailed information for the maintenance and repair of the Komatsu WA380-6/WA380-6H wheel loader. Covering over 1300 pages, this English-language manual is an essential resource for owners, technicians, and mechanics. It includes in-depth procedures for all major systems, such as the engine, transmission, hydraulics, and chassis, alongside critical technical specifications, fluid capacities, service intervals, and troubleshooting guidance. The manual's purpose is to facilitate the proper upkeep and efficient repair of the vehicle, ensuring its longevity, optimal performance, and safe operation.