MIL-DTL-81014B
4.5 Tests.
4.5.1 Examination of product. The cargo hook, its subassemblies and components shall be
examined to determine compliance to this specification with respect to materials and markings.
4.5.2 Test procedures.
4.5.2.1 Operational load test. The operational load test shall consist of a specified number
of operational cycles. These cycles shall consist of:
a. Engagement of load.
b. Hold load for two minutes.
c. Release load with releases indicated below.
d. Relatch automatically.
The following loads and release methods shall be used for the indicated number of cycles:
NO. OF CYCLES
LOAD
RELEASE METHOD
10
6,000 lbs.
Normal
15
20,000 lbs.
Automatic Touchdown
5
7 lbs.
Normal
5
7 lbs.
Ground
2
20,000 lbs.
Manual
5
5,000 lbs.
Manual
After half of each of the above tests have been completed, the forces required to actuate the
manual release shall be checked for no-load and full-load conditions. The release forces shall not
exceed the values specified in 3.9.6.1.3.
4.5.2.2 Overload test. A static test load of 60,000 pounds shall be suspended from the hook
for one minute. The hook shall suffer no yield or damage and shall operate through two cycles of
each of the tests specified in 4.5.2.1.
4.5.2.3 Overload release test. The cargo look manual release shall be actuated one time with
a 60,000 pound load suspended from the hook. The hook shall then be examined to see that there
is no major damage and to ascertain that the hook can be returned to operating condition with
only minor repair and replacement of minor parts. After examination and return of the hook to its
normal operating condition, the hook shall operate.
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