This manual covers the Komatsu WA150PZ-5 Wheel Loader, serial numbers H50051 and up. Engineered for robust performance and reliability, this machine is designed for demanding operational environments. Its construction embodies Komatsu's commitment to quality, ensuring efficient and dependable service in its intended applications. This Service Repair Manual provides comprehensive guidance for the technical service and repair of the WA150PZ-5 Wheel Loader. It includes detailed information on General topics, Structure, Function and Maintenance Standards, Testing and Adjusting, Disassembly and Assembly, and Other relevant sections. With step-by-step instructions, high-quality diagrams, and easy-to-read text, this manual is an essential resource for both do-it-yourself owners and experienced mechanics seeking to maintain and repair their equipment.