The Zetor Z 4320 tractor represents a robust piece of agricultural machinery, built with the reliability and engineering quality expected from Zetor, a manufacturer with a strong heritage in agricultural equipment. This model is designed for demanding tasks, offering dependable performance for a variety of farming and operational needs. Its construction prioritizes durability and efficiency, making it a valuable asset for owners and operators who rely on their equipment for consistent productivity. This Workshop Service Repair Manual provides comprehensive guidance for the Zetor Z 4320 tractor. It is intended for mechanical technicians and owners seeking detailed information on maintenance, diagnostics, and repair. The manual covers all major systems, including the engine, transmission, fuel, lubrication, exhaust, and electrical systems, offering procedures for routine maintenance, servicing, tune-ups, and complete overhauls. It also references special tools and emphasizes safety through prominent use of WARNING, CAUTION, and NOTE symbols, ensuring accurate and safe servicing.