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|  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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