I bought a used 200 JD4300 Hydro MFWD 2 years ago with 430 loader and 675 hours. Bought a used 48 backhoe last month and am in the process of replacing some hoses, bushings etc. I have a 60" &-iron MMM. I have a little over 200 hours use mowing, loader work, box blading, raking, bush hogging and rototilling, snow removal, as well as a little digging with the backhoe. Overall I have been very happy with the tractor and its capabilities. She is a great mower, and loader work comes very natural with the hydro.
Problems I have had, am having or have fixed.
Known battery issue. I did have some corrosion on battery tray from the old battery spilling acid, fortunately, oil cooler was spared. I cleaned up battery tray, painted and put in an optima yellow top.
I have what has been referred to here at TBN as the "dreaded drop recover" issue with my 3 point hitch. There was an update of the hydraulic filter the goes before the rockshaft control valve to replace an inline screen that was known to dislodge or become torn allowing debris into the RCV. Mine did not have the new filter, and had a hole in the screen. Im afraid I will be needing to replace the RCV if replacing the relief valve does not fix the problem. I have since added the upgraded filter to the power beyond hose for the backhoe. I would check to see if you have the upgraded filter, if not it is something I would address before pursuing any 3 point work.
Fuel gage quit working. Think it is just a bad gauge sensor but need to test and make sure I dont have a short some where.
Traction. I have turf tires which are great for mowing and have done much better than I had anticipated for loader work, ground engagement and snow removal thanks to the MFWD. That being said, I would really love to get some R-4s, but as you know this requires new rims in addition to new tires and wont be happening until I wear my turfs out.
Vertical 3-point stabilizers. I am being picky now, but I really dislike them and will eventually update to the 3X20 versions that are horizontal ( easier to pin/ unpin). The are just a pain when hooking up 3-point implements of different widths.
My 2 cents for what its worth. If you have any specific questions I'd be more than happy to try and answer. TBN has been excellent and with the proper searches you should be able to find more info about the battery issue and 3point hydraulic filter issue.
Good luck and enjoy the new tractor. Pics are always appreciated of course!!