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Page Title:
High temperature storage and operation. |
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|  MIL-M-53077(ME)
4.5.2 Tests. Units for inspection shall be tested in accordance with table II, test schedule.
4.5.2.1 Performance tests.
4.5.2.1.1 Hydraulic release. With the mounting kit mounted using the installed interface
configuration for its intended application or equivalent, verify the roller assemblies are
hydraulically released from the mounting kit as specified in 3.13.1.
4.5.2.1.2 Manual release. With the mounting kit mounted using the installed interface
configuration for its intended application or equivalent, verify the lever mechanism allows the
roller to be as specified in 3.13.2.
4.5.2.2 Environmental tests.
4.5.2.2.1 Low temperature storage and operation. The mounting kit shall be tested in
accordance with MIL-STD-810D, method 502.2, procedure I and II to verify conformance to
3.5.1 and 3.5.2. Using MIL-STD-810D, method 502.2, procedure I maintain the assembly at the
extreme low temperature specified in 3.5.2 for a period of 24 hours. At the conclusion of this
time proceed with MIL-STD-810D, method 502.2, procedure II by stabilizing the assembly at the
extreme low temperature specified in 3.5.1 and performing the test specified in 4.5.2.1.1. Return
the assembly to 73 +18 F and perform the test specified in 4.5.2.1.1.
4.5.2.2.2 High temperature storage and operation. The mounting kit shall be tested in
accordance with MIL-STD-810D, method 501.2, procedure I and II to verify conformance to
3.5.1 and 3.5.2. Using MIL-STD-810D, method 501.2, procedure I maintain the assembly at the
extreme high temperature specified in 3.5.2 for a period of 48 hours. At the conclusion of this
time proceed with MIL-STD-810D, method 501.2, procedure II by stabilizing the assembly at the
extreme high temperature specified in 3.5.1 and performing the test specified in 4.5.2.1.1. Return
the assembly to 73 +18 F and perform the test specified in 4.5.2.l.l.
4.5.2.3 Mission reliability test. The mounting kit shall be subjected to 11 one hour missions.
The missions shall be conducted in accordance with 3.14.1. All incidents shall be scored against
the failure definition (see 3.14.2) by the authorized Government representative. Nonconformance
to 3.14 shall constitute failure of the test.
4.5.2.4 Maintainability. Throughout performance of the mission reliability test (see 4.5.2.3)
the time to repair each incident shall be recorded. The mean time to repair and the maintenance
ratio shall be calculated. Nonconformance to 3.15 shall constitute failure of the test.
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