This Field Assembly Manual provides comprehensive instructions for the safe and effective assembly of the Komatsu WA800-3 Wheel Loader, serial numbers 50001 and up. The WA800-3 is engineered for demanding operational environments, reflecting Komatsu's commitment to robust construction and reliable performance in heavy-duty applications. This manual focuses on guiding users through the complete assembly process, ensuring that the machine is put together according to stringent standards. The purpose of this English-language manual is to detail every aspect of the field assembly procedure. It covers general drawings, transportation specifications, disassembled unit dimensions, workspace layout, required tools, equipment, and consumables. Step-by-step instructions guide the assembly of critical components such as the frame, steering, drive shafts, axles, tires, fuel system, cab, and electrical connections. Furthermore, it includes information on post-assembly adjustments and maintenance, ensuring the wheel loader is ready for operation and performs optimally.