The WA900L-3 Wheel Loader is a robust and powerful machine designed for demanding heavy-duty applications. Engineered for exceptional performance and reliability, this wheel loader features an SAA12V140E-3 engine, a water-cooled, 4-cycle, direct injection diesel engine with 12 cylinders, a displacement of 24.17 L, and a net power output of 390 kW (523 HP) at 2000 rpm. Its advanced transmission with electronic control offers 4 forward and 4 reverse speeds, contributing to its operational efficiency. With an operating weight of approximately 82,500 kg and a standard bucket capacity of 10.0 m³, the WA900L-3 is built to handle substantial loads in construction, mining, and quarrying environments. This Service Repair Factory Manual provides comprehensive guidance for the WA900L-3 Wheel Loader, covering serial numbers 52001 and up. The manual details essential information across various sections, including General information, Structure and Function, Testing and Adjusting, Disassembly and Assembly, Maintenance Standards, and Other relevant topics. It serves as an indispensable resource for owners, mechanics, and technicians, offering detailed procedures and specifications necessary for proper maintenance, troubleshooting, and repair. The manual is presented in English.