I took my 52 HJ out for a nice drive and it ran and stopped great. However, when I returned, I could smell the rear brakes. I jacked it up, and found the rear brakes are out of adjustment, and I can't seem to adjust them to not drag like they are. I have the shop manual and I adjusted them just fne a few months ago. Any suggestions why I can't loosen them and get them to stop dragging? It is as if the emergency Brake is on, but it is releasing.