EXTERNAL CARGO HOOK SYSTEM OPERATIONAL CHECK (Continued)

EXTERNAL CARGO HOOK SYSTEM OPERATIONAL CHECK (Continued) - TM-55-1520-240-T-3_846

EXTERNAL CARGO HOOK SYSTEM OPERATIONAL CHECK (Continued) - TM-55-1520-240-T-3_848

TM-55-1520-240-T-3 CH-47D Heilcopter Manual
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TM 55-1520-240-T 16-1.4 EXTERNAL CARGO HOOK SYSTEM OPERATIONAL CHECK (Continued) 16-1.4 TASK RESULT 25. Set MASTER switch (1) to RESET then to OFF. 26. Connect forward cargo hook connector DUAL HOOK FAULT capsule (14) shall go out. (20) to fuselage receptacle. 27. Disconnect aft cargo hook connector DUAL HOOK FAULT capsule (14) shall come on. (20). If it does not, replace emergency hook release relay box. 28. Connect aft cargo hook connector (20) DUAL HOOK FAULT capsule (14) shall go out. to fuselage receptacle. 29. Set MASTER switch (1) to ARM. 30. Suspend one 20-25 pound load to each load beam (23) on forward and aft cargo hooks. 31. Press and release pilot's CARGO HOOK Forward cargo hook shall open and drop load then RELEASE switch (21). relatch closed. FWD HOOK OPEN capsule (11) shall come on. Pilot and copilot master caution lights (24) NOTE shall come on. If forward cargo hook does not open If CARGO HOOK RELEASE switch is will go to task 16-1.21. If hook opens and FWD HOOK held pressed, a hammering sound OPEN capsule does not come on, go to task 16-1.22. be heard from forward cargo hook. 32. Set MASTER switch (1) to RESET, then Forward cargo hook shall stay closed. FWD HOOK to ARM. OPEN capsule (11) shall go out. Pilot and copilot master caution lights (24) shall go out. If capsule is still lit, go to task 16-1.11. If lights (24) are still lit, replace master caution panel. 33. Suspend one 20-25 pound load to load beam (23) on forward cargo hook. GO TO NEXT PAGE Change 9 16-13

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