We take ours off with boom extended and bucket extended, we put blocks under main part because it's easiest. To install we back up close. Hook up hydraulic. Twist left and right to get arm pins in. Remove blocks. Work boom and arms up/down to get top link in. That's it. Ours has a pto pump, but makes no difference. My dad will be 75 this month. He can say I'll go get the backhoe. Five minutes later he is back. Don't need any help. It is parked under a shed out of the way. One time I remember it was parked with the bucket teeth straight down instead of extended straight. No idea who did it. Dad told us boys years ago that he don't make mistakes. Said he almost made a mistake once, but when he thought about it, he realized he was mistaken. So we knew it couldn't have been him. But anyway, bucket curled, over time and backhoe slid off of blocks and it took the whole family to connect it.
So when we take it off, extend boom, bucket straight and lay on ground. Remove top link pin, act to raise boom and instead it pulls top link out of tractor. Ours has a solid non flex ridgid top link. Then push down on stabilizers and raise it a little, top link should be out of tractor so backhoe will go straight up. Block it a few inches higher than it is when on tractor. Remove lift arm pins. Disconnect hoses, don't forget to undo hoses before driving off. We were pulling a 14' disc and the hitch broke. My brother was driving, I shut him down. The hoses pulled the disc for a while. Hoses are tough. They will drag your backhoe off blocks. We use four sets of blocks under main part.