MIL-T-62079 Truck, Panel: Police Patrol Conversion, 8,000 Pounds Gvw, 4X2, CommercialThis specification covers a gasoline engine driven, four-wheel, two-rear wheel drive, forward control type, commercial panel or window van truck converted to a police patrol wagon with a rear compartment for confined occupants. The vehicles have a minimum gross vehicle weight GVW of 8,000 pounds. Vehicles procured under this specification are commercial items which are warranted by the manufacturer as specified in acquisition documents.

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MIL-T-62079E

units simultaneously, shall be furnished. The connecting cable shall include a matching female connector at the vehicle end and a standard, three pronged (two power plus one ground) male connector at the other end. All electrical apparatus shall conform to Federal Motor Carrier Safety Regulation 393.77(c)(7). Electrical insulation of connecting cable shall withstand normal operating stresses in low ambient air temperatures (down to minus 60 F) without cracking or

loss of dielectric capacity. All heater lead wires shall be installed without interfering with vehicle component operation and without loose excess wire. A carrier for the connecting cable

shall be mounted within the cab or engine compartment and shall provide positive cable retention during vehicle operation. Heaters shall be furnished as follows:

(a) A coolant heater, l500-watt minimum rating, shall be installed in the engine block or lower coolant inlet hose. An engine thermostat with an operating range of l70 F to 195 F shall be installed

(b) The battery heater shall have a capacity adequate to maintain the battery electrolyte

at a temperature of not less than l0 F during vehicle exposure in ambient air temperatures as low as minus 60 F, and shall embody a thermostat to limit the temperature of the electrolyte to not more than 80 F

3.4.2 Electrical system. The electrical system shall be in accordance with Federal Motor

Carrier Safety Regulations 393.27 through 393.31 and 393.33.

3.4.2.1 Ignition system. An ignition system of 12-vo1t direct current (dc) potential shall be furnished. An alternator of not less than 55 amperes dc output shall be furnished. The maximum constant electrical load, including the radio, shall not exceed 80 percent of the maximum output capacity of the alternator furnished. The vehicle radio electrical load is established at 7 amperes for monitor and 18 amperes for transmission. The using activity will furnish and install the

radio.

3.4.2.2 Battery. The battery shall be of 12-volt potential. The reserve capacity rating, measured in accordance with SAE J537, shall be not less than 80 minutes. The cold cranking rating at 0 F, measured in accordance with SAE J537, shall be not less than 350 amperes. The battery shall be of the maintenance-free type having the maintenance-free characteristics listed in W-B-13l.

3.4.2.3 Auxiliary 24 volt system with radio outlet. When specified (see 6.2), an auxiliary

24 volt system with a shielded wiring harness and radio outlet with cover shall be furnished. The

receptacle and cover shall conform to Drawings 7722352 and 7261674, and shall be marked with a pressure sensitive label: "24-VOLT RADIO OUTLET." The receptacle shall be located on the side opposite the driver, on the instrument panel in the cab. The shielded wiring harness shall be connected to the receptacle and to a 12-volt to 24-volt converter. The converter shall operate from the 12-volt battery (see 3.4.2.2) and shall have an output capacity of not less than

25 amperes.