This workshop service repair manual covers Komatsu WA470-5 and WA480-5 wheel loaders from the WA-5 Series. These machines are engineered for demanding operational environments, featuring robust construction and advanced Komatsu technology. The WA470-5 offers a net power output of 209 kW (280 HP) with a bucket capacity ranging from 3.4 to 3.9 m³, while the WA480-5 provides 235 kW (315 HP) and a larger bucket capacity of 3.8 to 4.2 m³. Both models utilize the Komatsu SAA6D125E-2 engine with 11.04 liters displacement and are equipped with the Komatsu Advanced Transmission with Lock-up (ALT) for efficient power delivery. Their reliable performance and operational versatility make them suitable for a wide array of material handling tasks.

This comprehensive manual is designed to assist owners, mechanics, and technicians in maintaining and repairing the Komatsu WA470-5 and WA480-5 wheel loaders. It details essential maintenance procedures, including lubrication capacities for the engine, transmission, and hydraulic system, along with guidance on service intervals. The manual also provides in-depth technical specifications, troubleshooting information, and safety guidelines to ensure optimal performance and longevity of the equipment. Coverage includes detailed information on the articulated frame steering, braking systems, and operational features, enabling efficient upkeep and problem resolution.