The nozzle is removable for {TAIL ~ maintenance} by detaching {HEAD ~ the flange member} and withdrawing the nozzle through the opening 
The nozzle is removable for { TAIL ~ maintenance } by detaching { HEAD ~ the flange member } and withdrawing the nozzle through the opening
OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH