The raised position is for {TAIL ~ situations} in which {HEAD ~ the trailer} must be manoeuvred over ramps, uneven terrain, etc. which might contact the underside of or otherwise interfere with the fairing 
in
The raised position is for { TAIL ~ situations } in which { HEAD ~ the trailer } must be manoeuvred over ramps , uneven terrain , etc . which might contact the underside of or otherwise interfere with the fairing
OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL REL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH