This Operation and Maintenance Manual covers the Komatsu WA430-6 Wheel Loader, serial number H50051 and up. Engineered for demanding operational environments, this machine exemplifies robust construction and reliable performance. Its design prioritizes efficiency and durability, making it a valuable asset for various heavy-duty applications. Understanding and adhering to the guidelines within this manual will ensure the continued optimal functioning of your Komatsu WA430-6. This manual provides comprehensive information essential for the safe and effective operation and maintenance of the Komatsu WA430-6 Wheel Loader. It details periodical inspections, recommended service intervals, and specific fluid requirements, along with handling instructions. The document is structured to assist operators, technicians, and mechanics in performing routine maintenance, troubleshooting issues, and understanding the machine's technical specifications, thereby maximizing its service life and operational efficiency.