MIL-P-17861F
3.9 4 Mobility.
3.9.4 1 Skid-mounted pumps. All skid-mounted pumps shall be capable of
being towed at 5 mph in a series of S-curves for not less than 300 feet. There
shall be no damage to the skid or damage to or misalignment of the pump mounted
on the skid,
3.9.4.2 Vehicular-towed pumps. All vehicular-towed pumps mounted on
automotive-type tires shall be capable of being towed at 20 mph over graded
gravel roads for a distance of not less than 15 miles. There shall be no damage
to or misalignment of the pump.
3.9.5 Lifting devices. The lifting devices, except for one-man or two-man
close grip carrying handles, shall be capable of withstanding a loading equal to
2.5 times the normal static load when the pump is suspended in a normal
position.
3.9.6 Hydrostatic pressure. The casing of the pump shall be capable of
withstanding a hydrostatic pressure equal to 1.5 times the pump discharge
pressure or the total dynamic head, whichever is greater. There shall be no
damage or permanent deformation of the pump casing or leakage in the casing or
through the casing gasket.
3.9.7 Engine horsepower.
The engine shall operate as specified in 3.5.8.1.
3.9.8 Environmental The pump shall be capable of starting and operating
not necessarily at rated capacity, in ambient temperatures up to 120°F at sea
level and 11O°F at a 5,000 foot (barometric pressure of 24.9
inches of
mercury) elevation. The pump shall also be able to withstand extended periods
of storage at temperatures to - 25°F without adverse affect on the subsequent
operability or efficiency.
3.10 Interchangeability. All units of the same classification furnished
with similar options under a specific contract shall be identical to the extent
necessary to insure interchangeability of component parts, assemblies,
accessories, and spare parts.
3.11 Identification plate. An identification plate will be furnished by the
contracting officer for each pump unit. The contractor shall stamp all
necessary data in the blank spaces of the plate provided for that purpose, and
securely affix a plate to each pump unit in a conspicuous place with nonferrous
screws, rivets, or bolts not less than l/8-inch in diameter. The applicable
nomenclature contained in the contract item description shall be placed in the
top blank.
3.12 Instruction plates. The pump unit shall be equipped with instruction
plates suitably located, describing any special or important procedures to be
followed in operating and servicing the equipment. Plates shall be of a
material which will last and remain legible for the life of the equipment.
Plates shall be securely affixed to the equipment with nonferrous screws or
bolts of not less than l/8-inch diameter.
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