I think hou missed something. They wouldn't be stuck together. Soon as you remove the bolts the rim will try to separate from the center. Now that they are filled this will be a dangerous job. I don't think you should try it.
+10 0n that. I'm against filling tractor tires in general because of the compaction issue. I run cast centers instead. You dismount a loaded tire and it gets slightly out of vertical, very bad things happen very quickly. You can get crushed for one. If it falls on your foot, you just broke your foot Sizeable loaded tires should only be handled by a tire man with a cherry picker on his truck. Even my cast center wheels (unloaded) require 2 grown men to move about and like loaded tires, you don't want to drop one.
Don't apply to compact tractors but for a mid sized utility like yours, tires can be lethal or at least debilitating.
Haven't been following along but if you have a hydraulic shuttle, there in NO clutch. All there is, is a damper plate that has radial springs (much like a clutch plate) but is splined one way to act on the springs and the other way to transmit power, all it does is mitigate shock load when shuttling from forward to reverse while moving.
The hydraulic shuttle is a wet pack (like the PTO clutch is) but unlike the PTO clutch, the shuttle pack is controlled (lock up) by the clutch pedal action on a proportioning valve on the side of the main gearcase, so yes you can 'clutch to shift' and 'slip the clutch or feather it as you call it because all you are doing ins controlling lock up pressure. There is no 'clutch' in the ordinary sense of the word. Why all I run are hydraulic shuttles. They have all the benefits of dry clutch operation without the associated wear.
When you shuttle from forward to reverse the shuttle lever over rides the proportioning valve and releases the pack to allow you to change direction. All the benefits and efficiency of a gear drive tractor without the weak link, a dry clutch. Only way I buy my Kubota's.
You can wear the pack out but it probably won't happen while you own the tractor. Having said that, a dry clutch (especially doing loader work) will fail much, much sooner.