This manual covers the Komatsu WA320-3MC Wheel Loader, designed for demanding operational environments. Built with Komatsu's renowned engineering for reliability and performance, this machine is engineered for efficient material handling and construction tasks. Its robust construction and advanced features, including optional Air Conditioning and ECSS (Electronic Controlled Suspension System), ensure operator comfort and productivity across a wide range of applications. The WA320-3MC is a testament to Komatsu's commitment to providing durable and effective heavy equipment solutions. This comprehensive Service Repair Manual and Operation & Maintenance Manual provides essential information for the proper care and servicing of your Komatsu WA320-3MC Wheel Loader. It details critical procedures for maintenance, assembly, disassembly, troubleshooting, and operation. The manual covers a wide array of topics, from safety precautions and component explanations to detailed maintenance schedules, lubrication guidelines, and technical specifications. This resource is indispensable for owners, operators, and technicians seeking to ensure the longevity, efficiency, and optimal performance of their equipment.