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|  MIL-PRF-62365C(AT)
3.4.11 Leakage. The motor shall meet all requirements for leakage when supplied with
fluid per 4.5.3.11.
3.4.11.1 Running leakage. The shaft leakage shall not exceed 5 drops in ten minutes
when tested in conformance with 4.5.3.11.1.
3.4.11.2 Shaft seal leakage. When the inlet and outlet ports of the motor are blocked,
the shaft is locked, leakage around the motor shaft seal shall not exceed 5 drops in 10 minutes
when tested in conformance with 4.5.3.11.2. There shall be no visible leakage at any other point.
3.4.12 Idling loss. The differential pressure between the motor inlet and outlet ports
shall maintain the motor in smooth rotation when tested in conformance with 4.5.3.12.
3.4.13 Consumption. The rate of inlet flow required to drive the motor at 6960 rpm shall
not exceed 4 gallons per minute (gal/min) (15 liters per minute (L/min)) when tested in
accordance with 4.5.3.13.
3.4.14 Direction of rotation. The hydraulic motor shall operate satisfactorily in either
direction of rotation. It shall not be necessary to alter the motor to effect a change in the
direction of rotation, but merely to reverse the direction of flow (see 4.2.6).
3.4.15 Break-in run. The motor shall not overheat or leak excessively during break-in
run (see 4.2.1).
3.5 Environmental conditions. The motor shall meet the performance requirements of
3.4 during and after exposure to those environments designated as operating. The motor shall not
be damaged, and it shall meet the performance requirements of 3.4 after exposure to those
environment conditions designated as non-operating (see 4.5.4).
3.5.1 High temperature (operating). The motor shall operate normally in ambient
temperatures up to 140F (60C) (see 4.5.4.1).
3.5.1.1 High temperature (nonoperating). The motor shall not be damaged nor its
performance impaired after extended exposure to an ambient temperature of 155F (68C)
(see 4.5.4.1.1).
3.5.2 Low temperature (operating). The motor shall operate normally in ambient
temperatures down to -25F (-32C) (see 4.5.4.2).
3.5.3 Salt fog. The motor shall not be damaged nor its performance impaired after
exposure to a salt laden environment (see 4.5.4.3).
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