I have a 2001 6018 and just bought an old J-70 tiller. I ordered a sleeve adapter and I should be good to go. My question is this. I have had this tractor for eight years and never used the rear PTO. I have mostly just used it in the woods for hauling firewood. It's a great machine. It only had 40 hours when I bought it and has 111 now. Do I need to do anything to the hydraulic system before I run the tiller? I did have to replace some of the fluid once when a hose broke