A-A-52512
2.13 Human engineering. The winch shall be operable and maintainable by 5th percentile female through 95th percentile male personnel, in accordance with SAE J833, while wearing bulky clothing and gloves. Minimum service access dimensions shall be in accordance with SAE J925.
2.14 Noise limits. The noise levels produced by the winch shall not exceed 85 dB(A) when measured with an ANSI S1.4, Type I meter with the microphone located 6 inches from the operators right ear and when measured with the equipment operating at maximum load. If and only if the 85 dB(A) limit is documented as being clearly beyond the state-of-the-art, selection of another noise limit shall be made by the contracting officer on the basis of system and cost requirements.
2.15 Resistance to saline atmosphere. When resistance to saline atmosphere is specified (see 5.2), all components shall be designed and installed to withstand the corrosive effective of a 48 hour duration salt fog exposure followed by 48 hours drying. The saline solution used for the test shall be 5 parts by weight of salt and 95 parts by weight of water, sprayed sufficiently to produce a finely divided, wet, dense fog. The solution temperature shall be maintained at 35 ± 6°C. Following the test, the winch shall not exhibit any loss of performance not sustain any harmful corrosion.
2.16 Welders. Before assigning any welder or welding operator to manual welding covered by this CID, the contractor shall obtain certification that the welder or welding operator has passed qualification tests prescribed by the American Welding Society (AWS) regarding any of the materials to be welded in the manufacture of this winch.
2.17 Bolted connections. Boltholes shall be accurately punched or drilled and shall have burrs removed. Washers or lockwashers shall be provided. Self-locking nuts are acceptable in lieu of standard nuts and lockwashers. All capscrews, bolts, and nuts shall be tight and correctly torqued. Critical load carrying bolted connections shall, in addition, be as specified herein. Boltholes shall be reamed as required. All critical junctures and joints shall be fastened with high strength bolts with washers and nuts, hex or 12-point type. Bolts shall be not less than SAE J429, grade 5, and shall be of higher grade as necessary. Integral or separate washers shall be of the flat hardened steel type, sized to spread the clamping loads such that brinnelling or embedding in the component members shall be prevented. Mating nuts shall be of the self-locking type in accordance with IFI Standards 100 and 101. Fasteners shall be lubricated prior to wrenching, and installation tools shall be proofed at set intervals to insure constant and correct torque performance.
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