SUCTION DEFUELING

Figure 3-3. Removal of ERFS System Hoses

TM-55-1560-307-13P AH-1E/F/P/S Helicopter Manual
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TM 55-1560-307-13&P 12. Repeat steps 7 thru 12 for each tank. 13. Disconnect D-1 pressure refueling hose (6) from manifold hose (3), and wipe up any fuel that may have dripped. 14. Disconnect grounding wire (1) from tank receptacle (2). 15. Secure fuel truck and aircraft. 3-14. SUCTION DEFUELING. This task covers: a. Grounding procedures. b. Defueling ERFS tanks. INITIAL SETUP Tools: Flashlight (explosion proof). Materials/Parts: Fuel JP-4,-5,-8 (items 7, 8, 9, Appx D) Refueling Truck Refueling Adapter Nozzle, P/N AE82605R Equipment Conditions: Same as gravity refueling. Refer to Figure 3-2. DEFUELING 1. Ground helicopter as required. 2. Connect fuel hose ground wire (1) to tank ground receptacle (2). 3. Remove dust cap from coupling assembly on hose (3). 4. Remove fuel filler port (4) cap. 5. Install adapter (5) to manifold hose (3), and connect fuel truck hose (6) to adapter. 6. Open all tank and hose cam levers for tanks to be defueled. 7. With an explosion proof flashlight, monitor fuel level until tank is empty. 8. Secure tank and proceed to next tank as required. 9. After defueling all tanks, disconnect defueling hose (6) and ground wire (1). 10. Reinstall dust cap on manifold hose (3). 11. Secure fuel truck and helicopter. 3-15. MAINTENANCE OF ERFS COMPONENTS. REPLACE ANY SYSTEM FUEL HOSE. This task covers: a. Removal. b. Inspection. c. Installation. INITIAL SETUP Tools: None Materials/Parts: Fuel Hose (6,7,8,15, Fig C-2), Appx C Equipment Conditions: Refer to Figures 3-3 and 3-4. ALL ERFS tank cam levers CLOSED. All tee and system coupling valves CLOSED. 3-16

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