MIL-S-4953C(USAF)
3.6.8.3 The main and auxiliary compound storage tanks shall be positioned, located, and baffled to prevent spillage of compound or oil over other parts of the spray outfit.
3.6.9 Cabinet. The cabinet shall be constructed to resist weather and prevent water from collecting within the cabinet. All panels for access to the spray outfit components requiring maintenance or adjustment shall be provided with quick-release type fasteners.
3.6.10 Appearance. The spray outfit shall be assembled to form a neat and compact unit without excessive piping, tubing, or hardware and shall correspond in appearance with Drawing
52K6050. All pipes, tubes, valves, and fittings shall be well supported and shall not extend beyond the outer limits of the unit.
3.7 Performance. The spray outfit shall be capable of delivering to the spray gun nozzle a constant supply of corrosion-prevention compound at 10 gallons per hour (gph) and 150 pounds per square inch (psi) at a temperature of 235° Fahrenheit (F) ±15°F. The spray outfit shall be capable of delivering to the spray gun a constant supply of preoiling fluid at a minimum rate of
180 gph and 80 psi at a minimum temperature of 100°F and a maximum temperature of 180°F.
3.7.1 Heating time. The corrosion-preventive compound shall be heated in a 12 gallon auxiliary tank to 235°F -115°F with electric heaters in not more than 30 minutes from an ambient temperature of 30°F. The mixture shall not be scorched and shall not exceed 250°F. The
preoiling fluid shall be heated in the 12 gallon auxiliary tank to 170°F ±10°F with electric heaters in not more than 30 minutes from an ambient temperature of 30°F. The fluid temperature shall
not exceed 180°F.
3.7.2 Pressure. The heated compound or o i l shall be continuously pumped through a replaceable filter through one hose to the spray gun or adapters and returned to the preservative auxiliary
tank through another hose. The compound shall be pumped at 150 psi. The preoiling fluid shall be pumped at 80 psi maximum. The pressure throughout the system shall not exceed 200
psi.
3.7.3 Heating capacity. The spray outfit shall be capable of heating 12 gallons of preservative compound or preoiling fluid per hour at a continuous flow rate. A total draw-off of 9 gallons of fluid shall be provided.
3.7.4 Temperatures. The spray outfit shall be capable of withstanding exposure to, but not operation in, temperatures ranging from -65° to +160°F.
3.7.5 Altitude. The spray outfit shall be capable of operating at altitudes up to 6,000 feet and at ambient temperatures ranging from 30° to 90°F.
3.7.6 Tilted position. The spray outfit shall be capable of operating in tilted position at angles up to 15 percent or 8 1/2 degrees from the horizontal.
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