The Zetor 3320-6340 Tractor Series represents a line of robust utility tractors engineered for diverse agricultural applications. Building on Zetor's heritage as a reliable Czech tractor manufacturer, these models are designed for efficiency and durability, offering a blend of power and operational simplicity suitable for various farm tasks. The series encompasses a range of models, likely featuring diesel engines with varying horsepower outputs and transmission configurations, including 2WD and 4WD options. Their construction emphasizes practicality and longevity, making them a dependable choice for professional agricultural technicians, farm maintenance personnel, and experienced tractor owners seeking dependable performance. This comprehensive workshop service and repair manual provides detailed information for the Zetor 3320, 3340, 4320, 4340, 5320, 5340, 6320, and 6340 models. It covers all essential systems, including engine, transmission, hydraulics, electrical, braking, and steering, with in-depth repair instructions, overhaul procedures, and troubleshooting guides. The manual is designed to assist users in performing routine maintenance, diagnostics, and complex repairs, offering step-by-step guidance, critical torque specifications, and wiring diagrams. Its extensive content and clear instructions make it an invaluable resource for both professional mechanics and capable DIY users aiming to maintain and repair their Zetor tractors effectively, ultimately contributing to cost savings and operational longevity.