A-A-52512
2.2 Design and construction. The winch shall be designed and constructed as specified herein. The winch shall consist of an air-motor-driven, single drum assembled in a complete, compact unit on a mounting base. The winch shall be equipped with a cable and swivel-hook, with safety latch, and shall have a line pull of 2000 pounds in any direction through an omni directional fairlead at a speed of not less than 120 feet per minute (fpm). The air consumption at the rated load and speed shall be not more than 315 cubic feet per minute (cfm) (60 degrees Fahrenheit [°F] free air) at 80 pounds per square inch (psi) at the inlet. The winch shall be capable of lifting, lowering, and stopping loads within its rated capacity without jerks, jars or vibrations. The winch shall be equipped with a clutch capable of regulating line speed in and out under load, and a dead-man brake. There shall be no asbestos materials used in the manufacture of this winch. The overall dimensions shall not exceed the following:
Length - 40 inches
Width - 24-1/4 inches
Height -20 inches
The total weight of the assembled unit, less cable, shall be not more than 600 pounds.
2.2.1 Bearings. Bearings used on the winch shall be anti friction type in accordance with the American Bearing Manufacturers Association (ABMA). The bearing mountings, accessories and method of bearing load rating shall be in accordance with ABMA standards. Any bearings that are not sealed or permanently lubricated, shall be lubricated through a fitting or by running in a liquid lubricant.
2.3 Safety. All exposed parts which are subject to high operating temperatures or which are energized electrically shall be insulated, enclosed, or guarded. All moving parts which are of such nature or so located as to be a hazard to operating or maintenance personnel shall be enclosed or guarded. Protective devices shall not impair the operating functions. All metallic members shall be so assembled and bonded as to provide a continuous electrical path for grounding purposes.
2.4 Performance. The winch shall conform to all of the performance requirements specified herein in any ambient temperatures between -25 and +125 °F, without malfunction, damage or permanent deformation under the following conditions:
a. With the winch mounting base anchored to an immovable object.
b. With the winch equipped with all attachments, accessories, and equipment when operated as specified herein.
c. With the winch completely and adjusted as specified herein.
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