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|  MIL-T-46765(AT)
alternator of not less than 85 amperes rated capacity, and which provides not less than
45 amperes dc output at normal engine idle speed.
* 3.4.2.4 Lighting. All vehicle lights, reflectors, and wiring shall conform with Federal Motor
Carrier Safety Regulations 393.12, 393.19, 393.20, and 393.22 through 393.26(d). Lights and
reflectors shall not be mounted on vertical surfaces or rub rails (unless recessed and fully
protected) or mounted on vehicle bumpers.
* 3.4.2.5 Turn signals. Turn signal lamps shall conform to SAE J588. Operating units shall
conform to SAE J589, class A, and shall be mounted on the steering column. Turn signal units
shall be installed in accordance with SAE 3588. Turn signal operating units shall have a visible
flash indicator.
3.4.2.6 Batteries. Each battery shall be of 12-volt potential. The total reserve capacity
rating and total cold cranking ampere rating at -18C (0F), both measured in accordance with
SAE J537, shall be not less than specified in table IV. Batteries shall be of the maintenance-free
type having the maintenance-free characteristics listed in W-B-131.
*
TABLE IV. Batteries.
Engine Type
Reserve capacity
Cold cranking
(minutes)
(amperes)
Diesel
480
1,875
*
Gasoline
100
450
* 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 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 tank(s). Fuel tank(s) shall be not less than 189 L (50 gallons) total capacity
(163 L (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 engine fuel intake shall be provided and means shall be provided
to monitor the fuel level of either tank from a single fuel gage; or an equalizing pump shall be
used to maintain the same fuel level in both tanks.
12
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