UNDERWAY REPLENISHMENT NWP 4-01.4 - Historic Naval Ships ...

NWP 4-01.4OPERATING INSTRUCTIONS FOR THECLEANOUT OF ASTERN FAS HOSETHE CLEANOUT OPERATION SHALL BE CONDUCTED UNDER THE SUPERVISION OF THE SHIP’SOFFICERS.NoteALL PERSONNEL INVOLVED WITH THE CLEANOUT OPERATIONSHOULD BE FAMILIAR WITH THE “OPERATING MANUAL FOR THE AS-TERN FAS HOSE CLEANOUT SYSTEM.” COMSC PUBLICATION MSC-7.PRE-OPERATION INSPECTION1. BEFORE SENDING THE ASTERN FAS HOSE TO THE RECEIVING SHIP VERIFY THAT THE PIGRECEIVER IS PROPERLY POSITIONED IN THE B-END OF THE NATO COUPLING. THE CONICALCAP SHOULD THEN BE SECURELY FASTERED TO THE B-END OF THE NATO COUPLING.2. CHECK THAT THE 1/4 INCH (6.35 mm) ORIFICE IN THE AIR SUPPLY LINES IS INSTALLED ANDCLEAR OF OBSTRUCTIONS.3. CHECK THAT AIR FOR BLOWDOWN IS AVAILABLE AT THE FUELING STATION.BLOWDOWN OPERATIONAFTER RECEIVING THE START BLOWDOWN SIGNAL PROCEED AS FOLLOWS:1. CLOSE MAIN FUEL VALVE AT STATION2. CHECK THAT QUICK-CLOSING FUEL VALVE IS OPEN3. OPEN AIR BLOWDOWN VALVE FOR 15 SECONDS THEN CLOSE4. PLACE HOSE-CRIMPER ON HOSE5. OPEN AIR DUMP VALVE TO ENSURE RISER IS FREE OF FUEL, THEN CLOSE6. OPEN QUICK-DISCONNECT COUPLING AT THE FUELING STATION AND MANUALLY INSERTTHE PIG INTO THE HOSE7. RECONNECT THE COUPLING8. REMOVE HOSE-CRIMPER9. OPEN AIR BLOWDOWN VALVE10. MONITOR THE HOSE PRESSURE GAUGE UNTIL PRESSURE STARTS TO DROPNoteTHREE TO FIVE MINUTES AFTER LAUNCHING THE PIG, THE PRES-SURE READING ON THE HOSE PRESSURE GAUGE WILL START TOFALL. THIS IS THE SIGNAL THAT THE PIG HAS ENTERED THE PIG RE-CEIVER, AND PROCEDURES FOR TERMINATING THE SLOWDOWNCAN COMMENCE.11. CLOSE AIR BLOWDOWN VALVE AND OPEN AIR DUMP VALVE12. WHEN HOSE PRESSURE GAUGE READS ZERO PSIG, SIGNAL RECEIVING SHIP THAT BLOW-DOWN IS COMPLETED, AND SECURE STATION.Figure J-6. Instrument PlacardJ-7 ORIGINAL