A spear and studs are mounted on {TAIL ~ the platform} and {HEAD ~ a hydraulic cylinder} connected to the center point controls the angular orientation of the spear and the frame 
A spear and studs are mounted on { TAIL ~ the platform } and { HEAD ~ a hydraulic cylinder } connected to the center point controls the angular orientation of the spear and the frame
OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH