ach it was alot of things, self leveling seives, spreader fell apart every 3 to 5 days or it a least haad cracks in it. motor always sounded like it would die when it was idling, elephant ears fell off after updates but that was dealer fault but i was still sitting, had alot of control pressure issues sat for 9 days last year. had alot of electronic issues, then it all shows up in the monitor and you get to punch ok all day if it will let you run. nobody would [or could] straighten it out and case rep Tony could care less. They said they would trade and give me a good deal case would help, the price was double difference what a machine that size rents far, I finally found a good case dealer that had a deere 9760 and traded to him. They know the combines and there customers are no. 1 Iam sure he will fix it and someone will be very happy with it, Just don't get one if your dealer has not supported several of the 10 series. I have a 4410 it is a good sprayer but it has un fixable issues also, 2 of the wheel seals leak and always have since new, they worked on them but never fixed them now iam witout warranty and screwed. typical case. I got rid of everything case but the sprayer and turned it green down time has been nothing since, looking to trade sprayer for 4830 and then i will be done with case after 30 years.