This factory technical workshop manual covers the Zetor 7520, 8520, 9520, and 10520 models, likely produced in the late 1990s to early 2000s. These tractors, originating from the Czech Republic, represent a generation of robust agricultural machinery designed for general-purpose farming. They are characterized by their reliable diesel engines, offering a horsepower range from approximately 75hp to 105hp, and are equipped with synchronized gearboxes and essential hydraulic systems. The engineering quality and intended use for demanding agricultural tasks highlight their role as dependable workhorses in farming operations. This comprehensive service and repair manual provides essential information for maintaining and servicing your Zetor tractor. It covers routine maintenance, detailed component repair, disassembly and assembly procedures, adjustments, and troubleshooting. The manual includes technical specifications, diagnostic flowcharts, and critical measurements, all supported by extensive illustrations and diagrams. Its purpose is to serve as an irreplaceable resource for Zetor tractor owners, service technicians, and agricultural workshops, enabling efficient operation, reducing downtime, and ensuring the longevity of the machinery.