TM 1-1520-238-T-7 10–50 10–7. SYSTEM DESCRIPTION (cont) 10–7 OPEN REFUEL VALVE VALVE CHECK FLOW LVL CONT VALVES TNK FWD OPEN TNK AFT OPEN CLOSE CLOSE FWD AFT VALVE PILOT CELL FUEL AFT CLOSED BATTERY AIRCRAFT 5 CB 32 FILL FUEL REFUEL VALVE CLOSE OPEN OPEN CAUTION / W ARNING PANEL PILOT VALVE REFUEL / TRANSFER FLOW CELL FUEL FWD PRESSURE FUEL MANIFOLD PILOT VALVE M70-215 CHECK VALVE Figure 10–24. Pressure Refueling Functional Block Diagram E F E F INDICATOR REFUEL MOVEMENT METER AFT MOVEMENT METER FWD OUTPUT DC LINEAR AFT OUTPUT DC LINEAR FWD PANEL REFUEL OFF DC EMERG BUS 24 VDC FROM CB 32 FUEL FILL IND ON AFT FUEL CELL SENSOR DATA FWD FUEL CELL SENSOR DATA M70-216 FSC Figure 10–25. Refuel Indicator Functional Block Diagram