I was using my 3 point hitch for the first time yesterday with a small carry-all/fork type device. Every time I tried to back up the bracket that holds the supports for the lower arms fell off at which point the lower arms moved toward the inside on the shaft supporting them and the whole shaft fell out. I realized that there is nothing holding this bracket to the shaft other than gravity where the u shaped plate hooks over the shaft. There is a hole in the plate where perhaps some sort of attachment is supposed to go? I put a bolt in the hole and the end of the bolt keeps the plate from falling off the shaft. Can someone tell me how this is supposed to be attached, or is it actually supposed to be setting loose on there? If this description isn't good enough for someone to figure out what I am talking about I will try to post some pictures later.