This manual covers the Komatsu WA250PZ-5 Wheel Loader, serial numbers H50051 and up. Engineered for demanding tasks, this machine is built for reliability and performance in various operational environments. Its robust design and advanced features contribute to efficient and economical operation, making it a valuable asset for construction, material handling, and other heavy-duty applications. This comprehensive Service Repair Manual and Operation & Maintenance Manual provides essential information for optimal machine utilization and longevity. It details critical procedures for maintenance, assembly, disassembly, and servicing, ensuring peak performance through effective, economical, and safe machine operation. The manual includes detailed technical data, troubleshooting guidance, and safety protocols, supported by clear illustrations, diagrams, and photos to assist owners, mechanics, and technicians.