Yes, it is the Marvel 882.
I took it off today, and ordered the rebuild kit from Walts.
Because I haven't removed the loader, it has been a slow process. I also saw that the AGCO manuals (arrived last night) have no details on removal.
So, to help me remember the steps after rebuild, I will post the removal sequence here.
1) turn off fuel at gas sediment bowl.
2) remove air filter assembly.
This is 4 bolts (1/2" Socket/wrench) next to battery, and then hose clamps as needed. For this process, I removed the air assembly for cleaning (9/16 Socket).
3) remove gas line. Note, this is a brass connection.
4) undo 2 nuts holding top of carb to intake. Left one is difficult, consider getting stubby wrenches (1/2" Wrench).
5) disconnect rod to governor. via Cotter pin.
6) disconnect choke cable. Take a close look at how this was hooked up. This is two parts, the rod is in a brass block with a bolt clamping (use 1/4" socket), while the cable case is clamped via a screw (use flat screwdriver, or the 1/4" socket).
7) Remove carb, wiggling out. Careful, fuel may spill.
Now, I'm looking for MS 882 carb rebuild instructions, the 2135 AGCO pack didn't have that. It does have some instructions on basic settings after installation.