This Operation & Maintenance Manual provides comprehensive information for the Komatsu WA600-3LK Wheel Loader, serial number prefix A53001 and up. Engineered for demanding applications, this machine is built with Komatsu's renowned quality and reliability. Its design incorporates advanced features such as the E.C.S.S. (Electronic Controlled Suspension System), Joystick Steering System, and Ground Driven Steering, enhancing operational efficiency and operator comfort. The WA600-3LK is a robust piece of equipment designed for heavy-duty material handling tasks. This manual is your essential guide to understanding, operating, and maintaining your Komatsu WA600-3LK Wheel Loader. It covers critical procedures for operation, lubrication, and maintenance, including detailed schedules and wear parts lists. You will find information on troubleshooting common issues, technical specifications, and guidance on selecting appropriate options and attachments. Safety is paramount, and this manual includes vital safety information, precautions, and guidelines for both operation and maintenance. With clear, step-by-step instructions and numerous diagrams, this document empowers owners and technicians to ensure the longevity and optimal performance of the machine.