MIL-T-62319 Trucks, Cargo: Diesel Or Gasoline Engine Driven, 19,000 To 24,000 Pounds Gvw, 4X2 And 4X4, CommercialThis specification covers diesel or gasoline engine driven, four-wheel, two-rear-wheel drive, and four-wheel, four-wheel drive cargo trucks, having minimum gross vehicle weights GVW of 19,000 to 24,000 pounds, for normal operating conditions. The vehicles procured under this specification are commercial items which shall be warranted by the manufacturer as specified in acquisition documents.

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MIL-T-62319C

3.4.2.6 Auxiliary 24-volt system with trailer receptacle. When specified (see 6.2), an auxiliary 24-volt system with a trailer receptacle assembly shall be furnished. Either a converter type (see 3.4.2.7.1) or an alternator type (see 3.4.2.7.2) system meeting specified requirements shall be furnished. A trailer receptacle conforming to MS75021-2 with cover assembly shall be provided in an accessible location on the rear end of the vehicle. A twelve-conductor cable not less than 110 inches long, with both ends of the cable equipped with connectors conforming to MS75020-1 and MS75020-2 shall be furnished. The cable assembly shall be stowed in the vehicle. The 24-volt, 12-ampere output service lighting circuit shall be connected through the appropriate lighting controls to terminals B, D, E, J and L of MS75021-2.

3.4.2.6.1 Converter type 24-volt system. The 12- to 24-volt converter(s) shall operate from the 12-volt battery (see 3.4.2.6). The output capacity shall be not less than 12 amperes.

3.4.2.6.2 Alternator type 24-volt system. The alternator type 24-volt system shall be separate from the l2-volt vehicle lighting and ignition system and shall include:

(a) Nominal 24-volt alternator with not less than 25 amperes rated capacity and capable of providing not less than 7 amperes dc output at normal engine idle speed

(b) Two 12-volt batteries with a combined capacity of at least 40-ampere hours at a 20-hour

rate or one 24-volt battery with 20-ampere hours capacity at a 20-hour rate

(d) An ammeter, mounted on the instrument panel.

3.4.2.7 Radio interference suppression. The vehicle shall be suppressed to limit electromagnetic radiation in accordance with SAE J551. Any body equipment emitting electromagnetic radiation shall be suppressed to the same level as the vehicle chassis.

3.4.3 Fuel system. The fuel system shall conform to Federal Motor Carrier Safety

Regulations 393.65 and 393.67.

* 3.4.3.1 Air cleaner. An air cleaner shall be furnished.

* 3.4.3.2 Fuel tanks. Fuel tank(s) shall have a total capacity of not less than 50 gallons

(43 gallons for vehicles destined for California). When more than one tank is furnished on diesel engine driven vehicles, means shall be provided to assure an equalized fuel level in both tanks. When more than one tank is furnished on gasoline engine driven vehicles, a selector valve, connecting either tank to the engine fuel intake, shall be provided and means shall be provided to monitor the level of either tank from a single fuel gage.