The Komatsu WA120L-3MC Wheel Loader, designed for heavy equipment applications, offers robust performance and reliability. This model, manufactured for serial numbers 54104 and up, is engineered for efficient and economical operation across a range of tasks including maintenance, assembly, disassembly, servicing, and handling. Its design emphasizes safe machine operation and includes specialized guidance for cold weather conditions and long-term storage, ensuring versatility and durability in demanding environments. This comprehensive Service Repair Manual and Operation & Maintenance Manual provides essential information for maintaining and repairing your Komatsu WA120L-3MC. It covers critical areas such as maintenance schedules, lubricant selection based on ambient temperature, standard tightening torques for fasteners, and the periodic replacement of critical parts. Additionally, the manual offers guidance on effective and safe machine operation, handling of advanced systems like the E.C.S.S., and details on optional parts and attachments, making it an indispensable resource for owners and technicians.