If it has fluid in when you let out the pressure, it usually drags it off the bead with the weight, and you don't even have to give it more than a kick. We had a tool that was about a yard long a bit like a pick that you could give it a good smack with, if it was reluctant. I never had any trouble breaking the bead unless it came in on its own, had to drive the fleet truck over a couple to get them broken off the bead ;-) we'd usually offer to come out and do it on the tractor if they rang up rather than them battle it on and off, and us battle harder with it in the shop on blocks. These dinky tractors would be a lot easier due to weight, we didn't see many under 34" at the rear, put water in them and it's just asking to scunge up threads etc etc getting them on and off.