This comprehensive manual provides in-depth information for maintaining, assembling, disassembling, and servicing your Komatsu WA470-5H and WA480-5H Wheel Loaders. It is designed to help you achieve peak performance through effective, economical, and safe machine operation and maintenance. The manual is divided into two parts: **Service Repair Manual:** This section covers a wide range of topics, including safety procedures, general information, structural and functional components, maintenance standards, testing and adjusting procedures, troubleshooting, disassembly and assembly instructions, and a comprehensive appendix. It features detailed specifications, diagrams, real-life photographs, and schemes, providing step-by-step guidance for repair, diagnostics, servicing, technical maintenance, and troubleshooting procedures. This manual empowers you to identify problems, understand repair processes, and maintain your machine efficiently. **Operation & Maintenance Manual:** This section outlines procedures for operating, handling, lubricating, maintaining, checking, and adjusting your Komatsu WA470-5H and WA480-5H Wheel Loaders. It serves as a valuable resource for both operators and maintenance personnel, enabling them to maximize machine performance while ensuring economical and safe operation. The content includes a foreword, safety information, operation guidelines, maintenance procedures, specifications, details on attachments and options, and a comprehensive index. This manual covers Komatsu WA470-5H Wheel Loaders with serial numbers WA470H50051 and above, and Komatsu WA480-5H Wheel Loaders with serial numbers WA480H50051 and above. It provides detailed information about the SAA6D125-3 engine, which powers both models. For in-depth engine information, refer to the 125-3 Series Engine Shop Manual.

The Komatsu WA470-5H and WA480-5H wheel loaders are powerful and versatile machines designed for heavy-duty material handling in various industries, including construction, mining, and quarrying. These loaders are renowned for their robust build, advanced technology, and impressive performance characteristics. The WA470-5H boasts a powerful Komatsu SAA6D140E-2 engine with a net horsepower output of 335 hp (250 kW), while the WA480-5H features a more potent Komatsu SAA6D170E-2 engine delivering 385 hp (287 kW) of power. Both models feature a durable, high-capacity bucket with a range of options for different applications, allowing for efficient material loading and transport. Their hydrostatic transmission system provides smooth and responsive control for precise maneuvering, while the durable axles and drivetrain ensure long-lasting performance even in challenging operating conditions. The Komatsu WA470-5H and WA480-5H wheel loaders are equipped with advanced safety features, including a comprehensive operator's cab with ergonomic controls, a ROPS/FOPS certified cab structure, and multiple safety interlock systems. These loaders are designed to be highly efficient, consuming less fuel and requiring less maintenance compared to previous models. The optional Komatsu Integrated Management System (KIMS) adds further capabilities, allowing operators to monitor key machine parameters, optimize performance, and track operating data for improved efficiency and cost control. The service and repair manuals, alongside the operation and maintenance manuals, provide comprehensive information on all aspects of these loaders, from routine maintenance procedures to detailed troubleshooting guides, ensuring optimal performance and longevity for these powerful machines.