This Service Shop Repair Manual covers the Komatsu WA900-3LC Wheel Loader, serial number range A50001 and UP. Designed for heavy-duty applications, this machine embodies Komatsu's commitment to robust engineering and reliable performance. Its powerful capabilities make it an essential tool for demanding operational environments, ensuring efficiency and productivity. This comprehensive manual provides detailed information essential for maintaining and repairing your Komatsu WA900-3LC. It includes step-by-step repair instructions, diagnostic procedures for troubleshooting, and detailed schematics, all accompanied by actual photo illustrations. The manual is structured to assist operators and technicians of all skill levels in performing maintenance and repairs effectively, ensuring the longevity and optimal performance of the equipment.