{HEAD ~ A mobile vehicle} is disclosed having {TAIL ~ a boom} pivotally mounted thereon for slewing about a vertical axis and a work head attached to the free end of the boom by a universal mounting 
{ HEAD ~ A mobile vehicle } is disclosed having { TAIL ~ a boom } pivotally mounted thereon for slewing about a vertical axis and a work head attached to the free end of the boom by a universal mounting
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH