I've not done it on that machine but I've never seen a piece of track equipment that you can't do that to. Either the sun gears or on some the axle can be removed by hand. Just clean best you can around the cover before you remove it.Have you ever done this with a Kubota SVL90?
I have the same issue that the OP had(Google lead me here).
My dealer is saying there is no way to "free wheel" an SVL90. He states that it must be dragged up on a flatbed.
I'd rather not drag the machine and risk tearing the tracks. They are old and cut up but I'm hoping to get more use out of them.