Original John Deere Technical Manual (Operation & Tests) for tractors 4050, 4250, 4450, 4650 and 4850. Publication TM-1259 (February 1986). Comprehensive ring binder with registry, approx. 6 cm thickness, size A4/A3. English language. Includes detailed system information, color diagrams, circuit diagrams for electrics, hydraulics, power train (Perma-Clutch / Power Shift) and steering.