The apparatus incorporates a frame structure having a hydraulically driven slide support guided by {TAIL ~ parallel structural members} of {HEAD ~ the frame} 
The apparatus incorporates a frame structure having a hydraulically driven slide support guided by { TAIL ~ parallel structural members } of { HEAD ~ the frame }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD