We bought the John Deere 9400 at an agricultural machinery sale. Despite being manufactured in 1998, the tractor works flawlessly. The electronics and mechanics are in good condition. However, the air conditioner has not been working for a year now. The machine is characterized by high productivity, handling large volumes of ploughing work. Among its advantages, I can highlight its fuel efficiency: 500 liters are enough for 2 full shifts of work.