I can now answer my own question, because I went out this morning and took it off. Easy. Two large pins on the bottom front...they have handles so they are easy to locate. Take the pressure off them by putting the bucket on the ground, you might have to jimmy it up or down a bit. They should pull right out. Then run the lift as though you are putting it all the way up, but since the pins are out the bucket will stay on the round....all the way up so the bucket frame will clear the tractor frame. Then unhook the front pump...two carriage type bolts, lift the pump out, hang it on the bucket frame.
Check to see if anyone has zip tied or taped any wires etc. onto the hydraulic lines.
Back up the tractor, make sure you clear and the hoses aren't getting pinched.There really isn't any torque or pressure on the frame with the bucket on the ground.
Everything comes off together....bucket, bracket, pump, controls. Good design.