This Service Shop Repair Manual covers the Komatsu WA320-6 and WA320PZ-6 (KA SPEC.) Wheel Loaders, with serial numbers 70001 and up. These machines are engineered for demanding operational environments, offering robust performance and reliability for maintenance, assembly, disassembly, and servicing tasks. The Komatsu wheel loaders are designed to meet the rigorous needs of various industrial and construction applications, ensuring efficient and dependable operation. This comprehensive manual provides detailed guidance for the upkeep and repair of your Komatsu wheel loader. It includes an index and foreword, technical specifications, information on structure and function, maintenance standards, standard value tables, testing and adjusting procedures, troubleshooting guides, disassembly and assembly instructions, and diagrams and drawings. With actual real photo illustrations, diagrams, and schemes, this English language manual is an essential resource for owners, mechanics, and technicians to ensure optimal performance and longevity of the equipment.