I recently inherited the 2040 I grew up on. I’ve restored most of it. Rebuilt the engine as it had 7000 hours on it. New injectors all the goods. I replaced the whole steering column from db electrical as it only steered one direction. 11 hours of use and it blew the top oring. I put the new guts in the old column after ordering new orings and seals. The tractors steers fine stops runs great 3 point works great. My question is the steering column will fry your hand after 30 minutes of run time and occasionally you can hear either the relief valve or pump whine for a second then go away. I’ve changed fluid and filters twice in the last 20 hours. I’m stumped.