This manual covers the Komatsu WA250-5 Wheel Loader, designed for robust performance and reliability in demanding work environments. With its advanced engineering and durable construction, the WA250-5 is built to handle a wide range of material handling tasks efficiently. This machine represents a commitment to quality and operational excellence, ensuring productivity and longevity for its users. This Operation & Maintenance Manual provides comprehensive guidance for the Komatsu WA250-5 Wheel Loader, serial numbers 70001 and up. It details essential information on operation, handling, lubrication, and maintenance, including specific procedures, schedules, and troubleshooting steps. The manual also includes technical specifications, safety precautions, and guidelines for attachments and options, serving as an indispensable resource for owners and technicians to ensure optimal performance and longevity of the equipment.