ENGINE FUEL SHUTOFF AND CROSSFEED VALVES OPERATIONAL CHECK (Continued)

ENGINE FUEL SHUTOFF AND CROSSFEED VALVES OPERATIONAL CHECK (Continued

TM-55-1520-240-T-3 CH-47D Heilcopter Manual
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TM 55-1520-240-T 10-1.4 ENGINE FUEL SHUTOFF AND CROSSFEED VALVES OPERATIONAL CHECK (Continued) 10-1.4 TASK RESULT TASK RESULT 19. Press and release right crossfeed fuel valve light (12). 20. Set CROSSFEED FUEL VALVES switch (13) to OPEN. 21. Open FUEL XFEED CONT circuit breaker (1). 22. Set handle (6) on left and right crossfeed fuel valves (14 and 15) to CLSD. 23. Close FUEL XFEED CONT circuit breaker (1). 24. Set CROSSFEED FUEL VALVES switch (13) to CLOSE. 25. Open FUEL XFEED CONT circuit breaker (1). 26. Set handle (6) on left and right crossfeed fuel valves (14 and 15) to OPEN. Light (12) shall momentarily come on. If it does not, go to task 10-1,13. Handles (6) on left crossfeed fuel valve (14) and right crossfeed fuel valve (15) shall move to OPEN. Left and right crossfeed fuel valve lights (11 and 12) shall come on and remain on until handles are at OPEN. If either crossfeed fuel valve handle is not at OPEN or light comes on and stays on, go to task 10-1.14. If either light did not come on but handle is at OPEN, go to task 10-1.15. If either light is on and handle is at OPEN, replace faulty crossfeed fuel valve. If handle (6) cannot be moved to CLSD, replace left or right crossfeed fuel valve, as required. Handles (6) on left and right crossfeed fuel valves (14 and 15) shall move to OPEN. Left and right crossfeed fuel valve lights (11 and 12) shall come on and remain on until handles are at OPEN. If not, replace faulty crossfeed fuel valve. Handles (6) on left and right crossfeed fuel valves (14 and 15) shall move to CLSD. Left and right crossfeed fuel valve lights (11 and 12) shall come on and remain on until handles are at CLSD. If either crossfeed fuel valve handle is not at CLSD or light comes on and stays on, go to task 10- 1.16. If either light did not come on but handles are at CLSD, go to task 10-1.15. If light ison and handle is at OPEN, replace faulty crossfeed fuel valve. 27. Close FUEL XFEED CONT circuit Handles (6) on left and right crossfeed fuel valves breaker (1). (14 and 15) shall move to CLSD. Left and right crossfeed fuel valve lights (11 and 12) shall come on and remain on until handles are at CLSD. If either handle is not at CLSD or light comes on and stays on, replace faulty crossfeed fuel valve. FOLLOW-ON MAINTENANCE: TM 55-1520-240-23: Electrical Power Off Disconnect Battery GO TO NEXT PAGE 10-8

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