d. Valves in the suction header. e. The pump inlet and discharge valves to a designated transfer pump. f. All valves from the pump discharge header to the designated purifier. g. The service tank cutout valve to the tank to be filled. h. The designated purifier discharge valve. 5. Start the purifier. 6. When the purifier attains 4100 rpm (146 to 150 bumps per minute), open the seal water plug valve on the purifier. NOTE To minimize vibration when starting with a dirty bowl, admit seal water immediately after pressing the stint button. 7. Open the main water-discharge observation port on the cover assembly. When water discharges past this port, close the seal water inlet plug valve on the purifier and at the supply end. 8. Start the designated transfer pump. 9. When the pump discharge pressure builds up, SLOWLY open the purifier inlet globe valve and throt- tle to maintain 9 psi inlet pressure. Then throttle the purifier discharge globe valve to maintain 30 psi back pressure (+or–5 psi). 10. Log the time the transfer pump and purifier were started. 11. While the system is in operation, make the following additional log entries: a. Transfer pump inlet and discharge pressure. b. Purifier inlet and discharge pressure. 12. Take inlet and discharge samples. a. Send to the AvFuels lab to analyze with the AEL Contaminated Fuel Detector Mk III and the AEL Water Detector Kit Mk I. b. Log the results of the analysis. NOTE It is advisable to take a visual sample of the contents of the storage tank from which suction is being taken at the initial opening of the manifold valves. This sample can be drawn through the telltale valve. 13. If the transfer pumps lose suction before the service tank is full, take the following action: a. Close the purifier inlet valve. b. Close the manifold valves to the empty tanks. c. Place additional tanks on the line. d. When the transfer pump discharge pressure is again attained, repeat step 10. 14. When the service tank is 95 percent full, secure the system follows: a. b. c. d. The procedure for stopping the purifier is as Close the purifier inlet valve. Stop the transfer pump. Stop the purifier. DO NOT engage the brake; the purifier will coast to a stop in about 45 minutes. e. As the purifier slows down, centrifugal force diminishes, and inlet and discharge pressure will drop to zero. f. When the flapper in the discharge sight glass stops, close the purifier discharge valve. g. Close all valves in the falling and transfer system. h. Make the following log entries: (1) (2) (3) tank. (4) Time transfer pump stopped. Time purifier stopped. Gross gallons removed from storage Net gallons received in service tanks. During the transfer operation, samples for visual examination must be taken from the purifier outlet at regular intervals in accordance with local instruc- tions. Samples must be clean and bright and contain NO free water. A cloud, haze, specks of sediment, or entrained water indicates the fuel is probably unsuit- able and points to a breakdown in the purification 4-69