This manual provides detailed electrical wiring diagrams for JCB 3CX and 4CX backhoes. It includes comprehensive schematics that illustrate the wiring connections, circuit paths, and component locations for the engine, control systems, lighting, and other electrical systems. The diagrams are essential for diagnosing and troubleshooting electrical issues, ensuring proper repair and maintenance. This document is crucial for technicians and electricians to understand and manage the electrical systems of JCB 3CX and 4CX backhoes effectively.