MIL-S-4953C(USAF)
4.6.4.5 The spray outfit shall be operated at 150 psi delivering the heated corrosion compound through the nozzle with the timer set for 1/2 pint delivery at each depression. An outside power source of 220V shall be used. The trigger shall be depressed and recycled 30 times. The quantity delivered shall be the average of six measurements taken during this operation.
4.6.4.6 Mobility tests. The spray outfit shall be subjected to the tests specified in MIL-M-008090 for type II mobility.
4.6.4.7 Electromagnetic interference. The spray outfit shall be tested as a complete unit in accordance with MIL-STD-826. Test methods shall be as described in method 1001 for class Gi equipment. Test methods in the 5000 series and 6000 series are not applicable.
4.6.4.8 Operation in tilted position. The spray outfit shall be tilted in four different positions at an angle of 15 percent or 8 1/2 degrees from the horizontal plane. Using preoiling fluid, the spray outfit shall be operated, for 15 minutes, as specified in 4.6.4.1 in the four positions. The unit
shall be permitted to stand for 4 hours in the tilted position most conducive to fuel leakage. Using preoiling fluid, the unit shall then be started and operated, for a period of 15 minutes, as specified in 4.6.4.1. Observation shall be made to determine that complete lubrication is maintained during all phases of the tilted operation and the heaters are completely covered with compound.
4.6.4.9 Noise level. The noise level of the spray outfit shall be measured at a number of points on a circle around the spray outfit not more than 15 feet from the unit in a horizontal plane, and also at the operator's control panel. Measurements shall be taken out-of-doors in a plane 5 feet above the ground. A type 759A General Radio Company sound level meter, or equal, shall be used to test for noise level. The noise level of the spray outfit shall not exceed the limits specified in 3.22 under any operating condition.
4.6.5 Transportability. The spray outfit shall be subjected to landing and acceleration loads in accordance with the requirements of MIL-A-8421.
4.6.6 Serviceability. The serviceability of the complete assembly shall be evaluated from the standpoint of ease of operation, servicing, and maintenance. Particular attention shall be directed toward maintenance with a minimum number of common tools, servicings, and provisions made to exclude dirt, snow, and ice from the cabinet, tanks, and working parts.
4.6.7 Environmental. The environmental and endurance tests may be conducted on separate units so that the time required for testing will be held to a minimum and that the endurance test may be conducted on units not requiring a complete disassembly for cleaning prior to conducting the endurance tests.
4.6.7.1 High temperature exposure. The spray outfit shall be placed in a test chamber and exposed to high temperature test Procedure II of MIL-E-5272. Upon completion of the exposure period, the spray outfit shall be removed from the test chamber and examined. There shall be no evidence of softening of thermoplastic materials or other damage.
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