This workshop service manual covers the JCB JS 190 Excavator, designed for robust performance in demanding construction environments. Built with JCB's renowned engineering quality and commitment to reliability, this machine offers exceptional operational efficiency and durability. Its advanced features and powerful diesel engine ensure it meets the rigorous requirements of heavy-duty excavation tasks, making it a trusted choice for professionals seeking dependable equipment. This comprehensive English-language manual provides essential information for the maintenance and repair of the JCB JS 190 Excavator, covering serial numbers 1314100-1314299. It details vehicle and component repair with step-by-step procedures, explanations, and various types of diagrams including exploded views, drawings, photos, schematics, and sectional drawings. The manual includes data, characteristics, instructions, methodology, service data, precautions, maintenance schedules, adjustments, removal and installation procedures, disassembly and assembly instructions, testing, diagnosis, troubleshooting guides, service specification lists, tightening torques, checking procedures, wear limits, and assembly details, ensuring that owners and technicians can effectively maintain and repair the equipment.