The Volvo L90D Wheel Loader, part of the L90D Series, represents robust engineering designed for demanding operational environments. This versatile machine is built for reliability and performance, featuring a powerful Volvo TD63KTE turbocharged diesel engine with a displacement of 5.5 liters, delivering a net power of 118 kW (158 hp). Its substantial operating weight of 17,200 kg and a rated operating capacity of 9,600 kg underscore its capability in heavy-duty applications. With a length of 7,500 mm and a width of 2,500 mm, the L90D is engineered for stability and efficiency. This service manual provides comprehensive guidance for professional workshop technicians. It covers essential maintenance procedures, including detailed information on lubrication capacities and recommended service intervals for engine oil, transmission oil, and hydraulic oil filters. The manual also includes technical specifications for the engine, transmission, hydraulics, and dimensions, along with troubleshooting information and safety guidelines. Its purpose is to ensure the L90D Wheel Loader is maintained to the highest standards, maximizing its operational lifespan and performance.