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MIL-PRF-62365C(AT)
4. VERIFICATION
4.1 Classification of inspection. The inspection requirements specified herein are
classified as follows:
a. First article inspection (see 4.3).
b. Conformance inspections (see 4.4).
4.2 Inspection conditions. Unless otherwise specified (see 6.2), all inspections shall be
conducted under the following conditions:
a. Air temperature: 73 +18F (23 +10C)
b. Barometric pressure: 28.5 (+2, -3) in. of mercury (Hg) (96.5 (+7, -10) kPa)
c. Relative humidity: 50 +30 percent.
4.2.1 Break-in run. The motor shall be operated for a duration of 2 hours at a minimum
of 3000 rpm, while the shaft is loaded to impose a minimum 1500 psi (10 300 kPa) inlet pressure
(see 3.4.15).
4.2.2 Operating pressure. The motor shall meet all operating requirements when
supplied with fluid at a pressure difference between the inlet and outlet ports (differential
pressure) of 2250 psig (15 500 kPa).
4.2.3 Ambient conditions. Measurements and tests shall be made at standard ambient
conditions. Standard ambient conditions are the same as listed for inspection conditions
(see 4.2).
4.2.4 Test fluid. Test fluid shall conform to MIL-PRF-6083. The fluid shall be filtered
through a 10 m (25 m absolute) filter before application to the motor.
4.2.5 Case pressure. Motor case pressure shall be maintained between 20 and 75 psi
(138 and 510 kPa) during the tests listed in table III.
4.2.6 Rotation. Performance tests shall be run in both directions of motor rotation.
These tests shall verify conformance to 3.4.14 by visual examination.
4.2.7 Test equipment. Appropriate test equipment shall be used in the performance of
the tests and inspections that have the following capabilities:
a. An external hydraulic power source capable of providing hydraulic oil at pressures
up to 12 000 psi.
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