Funny story on that -- after first got it I took the loader off to mow the lawn. Had a terrible time getting it back on. Right side wouldn't latch. The dealer sent a service person out and at first he couldn't get it to latch. I was terrified that I had bent the frame, or worse. But then the service person smartly recognized the problem. Tire pressure. The tire pressure was low on one side (plus the weight of the grass catcher) causing the whole thing to lean just enough so that the arms would not line up on both sides. After inflating the tire a bit .. on like a champ. Kinda embarrassing to have to get help the second week I owned it, but, lesson learned. And yeah, there is liquid ballast in the tire so not much air and with temperature differences the diameter of the tires varies a lot more than I would have ever expected. Never in a million years would I have checked for that.