I'm not familiar with the trans / final drive system on that unit, so I can't tell you what it would be then, sorry. Maybe a broken tooth somewhere? Splines wore out on a shaft?......
But if it isn't external, it's internal, unfortunately.
Check your wheel lugs, something could be loose there. And if you have the 2 piece rims, check both the outer bolts and the lugs where the dish attaches to the hub.
I put one of these on my MX5000. Much more comfortable than the factory seat, and can be ordered with armrests.
https://www.tractorseats.com/search.aspx?SearchTerm=all&facet=Machine:Tractor,Make:Kubota,Model:L4400DT
No, you do not need to drain the engine or transmission oils unless you are going to replace an seals while you are in there, but you might lose some oil from the hydraulic lines.
You will need some blocking and either a couple floor jacks or one jack and a hoist of some sort. Be prepared for...
I agree with everything Hokie said above except for the oil volume, the B6000 only hold 2 liters of engine oil.
The B6000s are almost indestructible unless you don't maintain / service them properly. The weakest point on them is probably the steering box, so don't force it too much when turning...
My bad.. I was distracted and jumped to the conclusion it was an HST unit, please disregard what I asked.
It sounds to me that your clutch is slipping. My geared MX5000 will spin all 4 wheels in high range in mud or loose dirt no problem.
I have sold several pieces of various equipment at Ritchie Bros sales.
I do see the odd good deal go through the ring, but I have a bit of advice for you. If it's a piece that I consigned, DO NOT BUY IT. When I take it there, it's because it is at the end of it's life, lol.
Crank position abnormality. Sometimes caused when tractor is stalled. Your operators manual might tell you how to clear the code on the display, or your dealer might have to do it. (This is assuming that the tractor runs ok?)
The pic from the manual was sent to me by the parts girl when she sent me the pic of the antifreeze that they use. I'm not sure of the context, but it appears that's the procedure Kubota recommends if you were switching to an LLC, maybe?
Either way, the owner of the dealership told me they use...
How about one on either side? That'll keep the axle centered in the pivot. Also, on some older Kubota's there is a bolt that you can tighten to snug up that pivot point, not sure if the B7100 has it though.