MIL-S-23923D
Hose shall be a commercial sprayer hose with the following
* 3.7.5.5 Hose.
characters tics:
Smooth, seamless, insecticide-resistant material.
Inner tube:
Abrasion-, sunlight-, and weather-resistant black
Outer tube:
neoprene.
Two braids rayon cord.
Reinforcing:
Working pressure: Manufacturer's rated pump output
Performance:
pressure plus 25 percent minimum burst: 4 times the
working pressure.
Change in outside diameter or length not over 6 percent
when subjected to O to 800 pound-force per square inch
(psi).
Suction hose shall not collapse at a vacuum pressure of
-28.3 feet of water (-24.0 inches mercury).
The inner tube shall not swell, flake, or disintegrate when subjected to the
action of the petroleum distillates, chlorinated hydrocarbon solvents,
insecticides, or aromatics.
3.8 Engine. The sprayer engine shall be a gasoline engine having
horsepower, torque, and speed characteristics to meet satisfactorily all of
the sprayer and duster unit performance requirements specified herein.
Certification that the engine furnished is approved for this application shall
be available during fabrication. The engine shall be complete with the
accessories normally furnished with the sprayer and duster unit, including not
less than the following:
A 12 volt electrical system, including a starter, battery charging
a.
alternator (shielded from insecticide and weather) of not less than
15-ampere rating, voltage regulator, ammeter, and a 15 ampere dry
charged battery without a filling of electrolyte.
b.
An engine housing.
A fuel tank of sufficient capacity for not less than 3 hours of
c.
continuous operation at rated speed.
A fuel filter.
d.
e.
A speed governing system, preset but adjustable to maintain the
manufacturer's recommended continuous operating speed.
f.
An engine hour meter, when specified (see 6.2).
An air cleaner.
g.
The engine shall meet the requirements specified herein using gasoline that is
unleaded or having a low-lead content. Low-lead gasoline shall not contain
more than 0.5 gram of tetraethyl lead per gallon of gasoline.
9
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