This Operation & Maintenance Manual pertains to the Komatsu WA250PT-5 Wheel Loader, serial numbers 72302 and up. Engineered for demanding operational environments, this machine embodies Komatsu's commitment to robust construction, reliable performance, and efficient functionality. Its design prioritizes maximizing productivity while ensuring operational safety and longevity, making it a dependable asset for various material handling tasks. This comprehensive manual serves as an essential guide for owners, operators, and technicians. It details critical procedures for operation, handling, lubrication, maintenance, and adjustments, including specific guidance for cold weather operation and long-term storage. The manual also provides essential technical specifications, recommended fluids and lubricants, standard tightening torques, and information on periodic replacement of safety-critical parts. With its extensive coverage, including numerous diagrams and pictures, this English-language manual is designed to help users achieve peak performance and ensure the economical and safe operation and maintenance of their WA250PT-5 Wheel Loader.