In this case, when the replenisher case is inverted and mounted on the replenisher tank, {HEAD ~ the nozzle} swings to prevent {TAIL ~ breakage} of the flexible tube 
swings to prevent
In this case , when the replenisher case is inverted and mounted on the replenisher tank , { HEAD ~ the nozzle } swings to prevent { TAIL ~ breakage } of the flexible tube
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH