I have a 4220 Branson and my 3 point hitch would not go down, I check the draft lever, control lever and the speed knob and all are fine, I ended up standing on the arms and bounced a few times and finally got the arms to go down, but now they will not raise. Any ideas what may have happened? I doubt my 147lb body could have done any damage as I know attachments weigh a lot more than me... Any suggestions would be much appreciated.