MIL-C-53057(ME)
Unless otherwise specified herein, the engine shall meet all
operational requirements and conditions specified in table I of MIL-
STD-1410, or the engine manufacturer's recommended operating limits
when operating in a 120 °F ambient. Emergency manual shutdown
provisions shall be furnished when recommended by the engine
manufacturer.
3.10.1 Power and speed rating. The power and speed rating of the
engine shall be such that operation of the crane under any of the
operational requirements and conditions specified herein will not
require horsepower in excess of the intermittent horsepower rating of
the engine for the applicable governed speed as established by the
engine manufacturer.
3.10.2 Engine accessories.
3.10.2.1 Starting priming system. Either a glow plug for each
cylinder or an auxiliary fluid priming system, conforming to MIL-E-
52649, type III, shall be furnished and shall be operable from the
operator's seat. The size of the primer shall be in accordance with
the engine manufacturer's recommendations. The primer may be
mechanically or electromechanically operated. When the primer is
mechanically actuated, it shall be furnished with a total cable
length not exceeding 6 feet, and a "tee" handle which is labeled
"engine primer". The primer shall be furnished with a temperature
control.
3.10.2.2 Alternator. A heavy duty splashproof alternator with
double mounting lug shall be provided. The alternator shall be not
less than 50 amp capacity and shall provide charge at engine low idle
speed. The regulator shall be integral with the alternator.
3.10.2.3 Starting system. The starting system shall be 24 volts and
shall include, as a minimum, a starting motor solenoid, a starting
motor, necessary wiring and cable, starter relay and starting motor
switch. A means shall be furnished to prevent energizing the starter
motor whenever the engine is running. The crane shall be provided
with either an interlock in the starting system or other means to
prevent energizing the starter motor except when the transmission is
disengaged. The starter shall be in accordance with the engine
manufacturer's recommendations. The starting motor and starter
solenoid shall be splashproof.
3.10.2.4 Fuel system. The capacity of the fuel tank shall provide
for not less than 10 hours operation when tested as specified in
4.6.2.30 and 4.6.2.29. The fuel tank filler cap shall be captive
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chained or hinged. The fuel fill port shall be labeled "Diesel Fuel"
with cast or embossed letters in not less than 1 inch letter height.
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The tank shall accept fuel at the rate of not less than 24 gallons
per minute and shall be located so that the tank can be filled from a
5-gallon can conforming to MIL-C-1283 by a person standing on the
ground or a surface on the crane intended for standing. The tank
shall be able to accept a fuel nozzle of 2 inches diameter with
sufficient air release clearance. The fuel tank shall be equipped
with a drainplug at the lowest point of the tank. The drainplug shall
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