MIL-S-4953C(USAF)
The spray outfit shall be subjected and satisfactorily complete the tests specified in 4.6.4.1 while still at the high temperature.
4.6.7.2 Low temperature exposure. The spray outfit shall be placed in a test chamber and
exposed to an ambient temperature of -65° ±2°F for a period of 48 hours. Upon completion of the exposure period, the spray outfit shall be removed from the test chamber. After warming up to a temperature of 30° ±2°F, the spray outfit shall satisfactorily complete the tests specified in
4.6.4.1.
4.6.7.3 Altitude. The spray outfit shall be placed in a test chamber or under conditions equivalent to 6,000 feet altitude and an ambient temperature between 30° and 90°F. The spray outfit shall
be subjected to the tests specified in 4.6.4.1.
4.6.8 Endurance. The endurance test shall be conducted on the complete spray outfit. The endurance test shall consist of 300 hours operation in an ambient temperature of 30° to 90°F. The preoiling fluid shall be recycled in the system for this test. The pumping rate shall be 180 gph at
a pressure of 80 psi with the oil heated to a temperature of 180°F maximum. Inspections, servicing and adjustments may be made in accordance with 4.3.8.1.
4.6.9 Performance check. Immediately following the test specified in 4.6.8 and without intervening reconditioning, the spray outfit shall be subjected to the tests specified in 4.6.4.1. The change in performance shall not exceed 2 percent above or below the specified requirements.
4.7 Inspection of the preservation, packaging, packing and marking for shipment and storage. Sample items or packs and the inspection of the preservation, packaging, packing and marking for shipment and storage shall be in accordance with the requirements of Section 5, or the documents specified therein.
5. PREPARATION FOR DELIVERY
5.1 Preservation and packaging. Preservation and packaging shall be level A or C as specified
(see 6.2).
5.1.1 Level A. The trailer chassis and engine shall be preserved and packaged in accordance with
MIL-STD-281.
5.1.1.1 Electrical equipment. All electrical equipment, apparatus, and wiring, used to operate the power source of the spray outfit, shall be preserved and packaged in accordance with MIL-P-
16298.
5.1.1.2 Delivery hoses. Openings of the delivery hoses shall be sealed with plastic plugs conforming to MIL-C-52078. The hoses shall be coiled to a safe diameter and tied. Coiled hoses shall be placed in the storage cabinet in a manner to prevent abrasion.
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