MIL-P-53108(ME)
The pressure gages shall be equipped with fluid dampeners conforming to MIL-S-2940, 2-L-a-P-G. All gage lines shall contain shutoff valves and be located and protected to prevent damage by personnel while handling, transporting, operating, and servicing. Pressure gage lines shall have provisions for complete drainage to prevent freezing and shall provide for air elimination during startup. The air eliminator shall not require tools to be operated. The system shall be equipped with shut down lights for each required emergency shutdown. The lights shall incorporate a manual reset latch for the low suction pressure and overspeed fault circuits. The low pressure shutdown circuit shall incorporate a time delay (adjustable from 0.1 to 30 seconds) that allows for small variations in suction pressure.
3.15 Fuel system. The steel fuel tank shall have sufficient capacity to provide 4-hour operation without refueling. Two 3-way fuel selector valves with corrosion-resisting faceplates with markings of "OFF", "UNIT TANK", and "AUXILIARY" and two 10-foot long fuel hoses conforming to
MIL-H-370 shall be furnished to permit engine operation from the fuel tank or an auxiliary fuel service. One end of each hose shall be equipped with a coupling conforming to MS27021. The valve shall be clearly marked to indicate its operating position. The valve control shall be provided with a double-ended arrow showing direction of operation and labeled at each end to indicate the
functional result (i.e., open, close, etc.). The fuel tank shall be equipped with a mechanically actuated fuel gage graduated from empty to full, a filler neck conforming to MS35644, a tank cap conforming to MS35645, and a gasket conforming to MS35643. The label "DIESEL OR JP-8
ONLY" shall be placed on or near the fuel fill port as specified in 3.8.
3.16 Skid mount. The pump unit shall be securely mounted to a heavy duty structural steel skid assembly. The skid mount shall consist of two steel skid runners with a heavy duty baseplate for mounting components of the pump unit. The runners shall incorporate enclosed forklift pockets on each side of the base and shall be upturned or beveled at each end to aid in skidding the unit into position. The forklift pockets shall have dimensions of 6 inches by 20 inches. The skid base shall allow for four-way entry by a forklift. The skid runners shall be furnished with mounting holes for anchoring the units to a concrete foundation or wood deck. The number and size of holes required shall be as determined by the manufacturer for anchoring the unit under the most severe conditions of vibration and thrust likely to develop during operation. The skid runners shall be of sufficient height to provide ready access to any connections located under the units and shall be of sufficient width to provide adequate bearing surface on a smooth, gravel base. The base assembly shall incorporate provisions to mount the ground rods, battery box assembly, and the storage box assembly.
3.17 Transportability. The pump unit shall be equipped with tiedown and slinging provisions as specified herein. The pump unit(s) shall be capable of being transported by highway, rail or air as specified herein.
3.17.1 Tiedown provisions. The tiedown provisions shall conform to MIL-STD-209, class 2 or
3, type IV equipment, and to MIL-STD-1791 for equipment restraint criteria. The tiedown provisions shall satisfactorily complete the pull testing as specified without weld failure, permanent deformation, cracking, loosening, or breaking of the provision or its connecting structural components.
3.17.2 Slinging provisions. The slinging provisions shall conform to MIL-STD-209, class l or 3, type IV. The provisions shall enable the complete pump unit(s) to be lifted in the normal operating position. The provisions shall be located so that not less than 1-inch (2.54 cm) clearance is
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