This comprehensive John Deere 4055, 4255, 4455 Tractors Operation & Tests Technical Manual (TM1459) provides detailed instructions and diagrams for servicing and troubleshooting your tractor. The manual covers every aspect of your machine, ensuring you have the knowledge and resources needed for effective maintenance and repairs.

The manual begins with general information, covering safety procedures, operational checkout, reference information, and test equipment calibration. It then delves into specific systems, offering in-depth explanations and diagnostic guides. Learn about engine operation and tests, fuel and air systems, and the intricacies of the electrical system, including starting, charging, INTELLITRAK system, lighting, and accessory circuits.

The manual also covers transmission systems, including QUAD-RANGE operational checks, diagnosis, and theory of operation, as well as Power Shift operational checks, diagnosis, and theory of operation. Further, understand the workings of the PTO, axles, and differentials, including operational checks, diagnosis, and tests. The steering and brakes systems are also thoroughly examined, providing information on operational checks, diagnosis, and theory of operation.

Gain a complete understanding of the hydraulic system through operational checks, diagnosis, tests, and theory of operation. The manual also covers the operator station, including operational checks, system diagnosis, and theory of operation.

This manual provides the information you need to keep your John Deere 4055, 4255, 4455 Tractors running smoothly and efficiently. It is an invaluable resource for both experienced mechanics and do-it-yourselfers.