The threaded collar is slipped onto the tube from below, the appropriate orifice plate is inserted and the nut tightened after applying some molybdenum disulphide based lubricant.
Keermega võru libistatakse altpoolt hülsi peale, paigaldatakse sobiv düüsiga plaat ja keeratakse mutter pärast molübdeendisulfiidmäärde lisamist kinni.