This manual covers the Komatsu WA320-6 (KA SPEC.) Wheel Loader, serial numbers 70001 and up. Engineered for demanding operational environments, this machine represents a commitment to robust construction and reliable performance in heavy-duty applications. Its design prioritizes efficiency and durability, making it a valuable asset for construction, material handling, and other industrial tasks requiring substantial power and maneuverability. This comprehensive Service Repair Manual and Operation & Maintenance Manual provides essential information for the effective and economical operation and maintenance of your Komatsu WA320-6. It details procedures for assembly, disassembly, servicing, and troubleshooting, supported by detailed illustrations, exploded diagrams, drawings, and photos. This resource is designed to assist owners, mechanics, and technicians in ensuring the longevity, safety, and optimal performance of the equipment.