This manual covers the Komatsu WA100-1 Wheel Loader, serial number 10001 and up. Engineered for demanding applications, this machine represents a commitment to robust performance and operational efficiency. Its design prioritizes reliability and durability, making it a trusted asset for various construction and material handling tasks. The WA100-1 is built to provide consistent power and control, ensuring productivity across a wide range of operational environments. This Service Repair Manual provides comprehensive guidance for the maintenance and repair of your Komatsu WA100-1 Wheel Loader. It details procedures for critical systems including the Engine, Power Train, Steering System, Brake System, Work Equipment, and the Electric and Electronic System. With step-by-step instructions, high-quality diagrams, and detailed technical specifications, this manual is an essential resource for owners, mechanics, and technicians to ensure the optimal performance and longevity of the equipment.