This manual covers the Komatsu WA450-3LE Wheel Loader, serial number A30001 and up. Engineered for demanding tasks, this wheel loader is designed for efficient operation, maintenance, assembly, disassembly, and servicing. Its robust construction and advanced engineering ensure reliability and performance in various work environments. This comprehensive guide provides the necessary information to understand and utilize the full capabilities of your Komatsu WA450-3LE. The scope of this Service Repair Manual and Operation & Maintenance Manual is extensive, detailing procedures for operation, handling, lubrication, maintenance, checking, and adjustment to ensure peak performance, economy, and safety. It includes step-by-step repair instructions, troubleshooting support, technical maintenance information, structure and function explanations, testing and adjusting procedures, maintenance schedules, and standard torque requirements. This manual is an essential resource for owners, mechanics, and technicians seeking to maintain and repair the Komatsu WA450-3LE Wheel Loader effectively.