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MIL-A-23282B(Wep)
4.4.3.2 Level C.  The actuator, packaged and packed in
accordance with Section 5, Level C, or the contract or the
purchase order, shall be dropped from a free fall height of
30 inches, in accordance with the requirements of WR-11,
onto a nonyielding surface.  Thereafter, the actuator shall
show no evidence of damage and shall meet all the performance
requirements of 3.3.
4.4.4 Temperature and humidity
4.4.4.1  High temperature and humidity.  The actuator,
less pack and packaging, shall be placed in a test chamber
and subjected to a temperature of plus 130 degrees plus or
minus 5 degrees F, 90 to 95 percent relative humidity for a
period of 48 hours.  At the conclusion of this period the
actuator shall be removed from the test chamber and allowed
to return to and remain at room temperature for a period of
four hours, after which the actuator shall meet the perform-
ance requirements and product characteristics of this
specification.
4.4.4.2 Low temperature.  The actuator, less pack and
packaging, shall be placed in a test chamber and subjected
to a temperature of minus 20 degrees F plus or minus 5
degrees F for a period of four hours.  At the conclusion of
this period the actuator shall be removed from the test
chamber and allowed to return to and remain at room tempera-
ture for a period of four hours, after which the actuator
shall meet the performance requirements and product
characteristics of this specification.
4.4.5 Operating life
4.4.5.1 Run the actuator for 50 duty cycles, consisting
alternately of runs as specified in 4.5.4.11.1, 4.5.4.11.2,
4.5.4.11.3, and 4.5.4.11.4, and cooling periods as speci-
fied in 3.3.10.4.  At no time during the operating life
tests shall the actuator torque exceed the limits specified
in 3.3.8 or the oscillations exceed the limits of 3.3.9.2.
Prior to the start of the test, the actuator test stand and
spring load shall be calibrated to permit reading of the
torque output during life testing.
4.4.5.2 At the conclusion of the 50th duty cycle and
after cooling as specified in 3.3.10.4, make a run as speci-
fied in 4.5.4.7.
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