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