30C AND 30D (1953 – 1957)
The 30C petrol (gasoline) and TVO and 30D diesel engines had overhead valves and coil ignition or direct injection with capacities of: diesel - 34 bhp at 1800 rev/min; petrol (gasoline) - 41 bhp at 2300 rev/min; TVO (kerosine) - 37,6 bhp at 2300 rev/min.
In 1954 the new series 30C and 30D models were equipped with TCU - the subsequently world famous Traction Control Unit and the first controlled weight transfer system for tractors. In1955 a special hitch to give the advantage of TCU in hauling heavy trailers was introduced. TCU is still the most efficient and by far the simplest method of obtaining controlled weight transfer.
