This manual covers the Komatsu WA500-3H Wheel Loader, serial number H20051 and up. Designed as heavy equipment for service and repair, the WA500-3H is engineered for robust performance and reliability in demanding operational environments. Its construction emphasizes durability and efficiency, making it a dependable choice for various industrial applications. This comprehensive Service Repair Manual provides essential information for maintaining and repairing your Komatsu WA500-3H. It includes detailed sections on general information, structure and function, testing, adjusting and troubleshooting, disassembly and assembly, maintenance standards, and other critical topics. With easy-to-read text, high-quality diagrams, and step-by-step instructions, this manual is an invaluable resource for both do-it-yourself owners and experienced mechanics.