This manual covers the Komatsu WA150-6 Wheel Loader, serial number 80001 and up. Designed for a wide range of industrial applications, this machine embodies Komatsu's commitment to robust engineering and operational efficiency. Its intended use encompasses critical tasks such as maintenance, assembly, disassembly, servicing, operation, handling, lubrication, checking, and adjustment, ensuring optimal performance and longevity in demanding environments. This comprehensive Service Repair Manual and Operation & Maintenance Manual provides detailed guidance for effective, economical, and safe machine operation and maintenance. It includes specifications, diagrams, photo illustrations, schemes, and step-by-step procedures for repair, servicing, technical maintenance, and troubleshooting. The manual is designed to empower owners and technicians to diagnose and resolve issues, perform necessary adjustments, and conduct routine maintenance without requiring external service center intervention.