The Hyundai Heavy Industry HL757-7A and HL757TM-7A wheel loaders, part of the 7A Series, represent robust engineering designed for demanding operational environments. These machines are powered by a Cummins QSB6.7 diesel engine, delivering approximately 164 HP and 589 lb-ft of torque, coupled with a 4 Forward / 4 Reverse Powershift Transmission featuring electronic shift control. With an operating weight of around 23,500 kg and a bucket capacity ranging from 3.0 to 4.0 m³, they are built for reliability and efficiency in heavy-duty applications. This Service Repair Manual provides comprehensive guidance for the maintenance and repair of the Hyundai Heavy Industry HL757-7A / HL757TM-7A wheel loaders. It covers essential information including detailed technical specifications, fluid capacities, service intervals, and operational procedures. The manual is intended to assist owners, technicians, and mechanics in understanding the vehicle's systems, performing routine maintenance such as engine oil and hydraulic filter replacement, and addressing potential issues to ensure optimal performance and longevity.