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