MIL-PRF-62364B
shall be such that the first 1470 cycles shall be at 140°F followed by 1470 cycles at -26°F, and the
last 1470 cycles at 140°F. The cycle rate of torque may be applied at any rate to satisfy the total
number of required cycles. During the operating life test, there shall be no adjustments or
replacement of any component. Dynamic tests shall be conducted on the test fixture specified
in 4.5.3.2.
4.5.3.10 Environmental test conditions. To determine conformance to 3.4.12, the
resistance of the brake assembly to the effects of natural and induced environments specified in
paragraphs 4.5.3.2.1 through 4.5.3.6 shall be conducted under the operating conditions and after
the non-operating conditions specified below:
a. To determine conformance to 3.4.12.a, tests shall be conducted at the high
temperatures specified herein and applied in accordance with MIL-STD-810,
method 501.3, procedure II.
b. To determine conformance to 3.4.12.b, tests shall be conducted at the low
temperatures specified herein and applied in accordance with MIL-STD-810,
method 501.3, procedure II.
c. To determine conformance to 3.4.12.c, tests shall be conducted to determine the
resistance of the brake assemblies to the effects of exposure to warm highly humid
atmospheres. The tests shall be conducted in accordance with MIL-STD-810,
method 507.3, procedure I.
d. To determine conformance to 3.4.12.d, tests shall be conducted to ascertain the
ability of the brake assemblies to resist the effects of a dry dust laden atmosphere.
The tests shall be conducted in accordance with MIL-STD-810, method 510.3,
procedure I, except the temperature shall be limited to 140°F (60°C) during step 5.
e. To determine conformance to 3.4.12.e, tests shall be conducted to determine the
ability of the brake assemblies to resist the effects of a salt atmosphere. The tests
shall be conducted in accordance with MIL-STD-810, method 509.3, procedure I.
f. To determine conformance to 3.4.12.f, tests shall be conducted to determine if the
brake assemblies will withstand expected dynamic vibrational stresses and to
ensure that performance degradations or malfunctions will not be produced by the
service vibration environment. The tests shall be conducted in accordance with
MIL-STD-202, method 204c, condition C.
g. To determine conformance to 3.4.12.g, tests shall be conducted to determine the
ability of the brake assemblies to withstand expected dynamic shock stresses and
that performance degradations or malfunctions will not be produced by the service
shock environment expected in handling, transportation, and service use. The
brake assemblies shall be tested in accordance with MIL-STD-202, method 213b,
condition J.
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