Your saying 35 hp John Deere. That is in the ball park and yes should pull it. I have known guys try it with 18-20 hp tractors and wonder why there tractor fell apart. Also, in my opinion, the older tractors were more rugged and would take more. I got a 9 ft sweather and 14 t baller. It was working the devil out of my d-15. Put the allis Chalmers 185 on it and that tractor plays with it. I got one of the 30 hp tractors and I'm not impressed. They have no lugging ability. The engine starts to pull down and you done killed before you can react. May because only 3 cylinders. The old farm tractors with 6 cylinder engines would lug and lug and lug before you ran out of power or killed it. As soon as she started laboring, just put the throttle to her. She may blow smoke like a freight train, but plenty of pure grit. Any way, I guess I like a little more tractor on my baler and don't want to see a guy get in trouble using to small of tractor.