This Service Shop Repair Manual covers the Komatsu WA380-3MC Series. Engineered for reliability and performance, the WA380-3MC is a robust machine designed for demanding operational environments. Its construction prioritizes durability and efficiency, making it a trusted choice for various industrial applications. This comprehensive manual provides detailed information essential for the maintenance and repair of your Komatsu WA380-3MC. It includes step-by-step repair instructions, troubleshooting procedures, and extensive technical data covering systems such as the engine, drivetrain, hydraulic system, cooling system, electrical system, chassis, cab, power take-off, brakes, and special features. With detailed illustrations, exploded diagrams, and photos, this manual is an indispensable resource for owners, mechanics, and technicians.