This manual covers the David Brown 1390, 1394, and 1490 series vehicles. Designed for reliability and robust performance, these models represent David Brown's commitment to engineering excellence. This service repair workshop manual provides comprehensive instructions essential for maintaining and repairing these agricultural machines, ensuring their continued operational efficiency. The purpose of this manual is to equip owners, mechanics, and technicians with the detailed information required for effective vehicle service. It includes step-by-step repair instructions, diagrams, illustrations, wiring schematics, and specifications. By following the procedures outlined within, users can confidently perform maintenance, troubleshooting, and repairs, mirroring the practices of authorized service departments and saving on potential repair costs.