TM 55-1520-240-T
16-1.3 EXTERNAL CARGO HOOK SYSTEM VISUAL CHECK
16-1.3
INITIAL SETUP
Applicable Configurations:
References:
All
TM 55-1520-240-23
Tools:
Aircraft Mechanic's Tool Kit.
Equipment Condition:
NSN 5180-00-323-4692
TM 55-1520-240-23:
Battery Disconnected
Materials:
Electrical Power Off
None
Hydraulic Power Off
Center Cargo Hook Access Panel Open
Personnel Required:
Center Cargo Hook Unstowed
67U20 Medium Helicopter Repairer
Center Tunnel Cover Open
TASK
RESULT
1.
Check forward cargo hook (1).
If load beam (2) is open, close it. If it does not stay
closed check rigging of tandem hook release rig-
ging. Adjust as required (TM 55-1520-240-23). If
rigging is okay and load beam is still open, replace
cargo hook. If control assembly (3) is damaged, re-
place it. If keeper (4) is damaged, replace it. If wire
harness (5) is damaged replace it. If window (6) is
2.
Repeat step (1) for aft cargo hook (7).
damaged, replace it.
3.
Check center cargo hook (8).
If hook (9) is open, close it. If it does not stay
closed service cargo hook actuator and check
manual release cams (TM 55-1520-240-23). If
hook still can not be closed, replace cargo hook
(8). If keeper (10) is forward of hook (9) or
damaged, adjust or replace it. If release
mechanism (11) is damaged, replace it. If wire
harness or hydraulic hose (12 or 13) is damaged.
replace it.
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