MIL-T-62097 Truck, Motor Home Shell, For Customization Into Mobile Laboratory, Electronics Van, Work Area, Etc., 14,000 Pounds Gvw, 4X2, Modified CommercialThis specification covers diesel and gasoline engine driven four-wheel, two-rear wheel drive, forward control motor home shells, having a minimum gross vehicle weight GVW of 14,000 pounds, for normal operating conditions. The vehicle has an integral drivers compartment and body for later installation of such special equipment as may be desired. Vehicles procured under this specification are commercial items which are warranted by the manufacturer as specified in procurement documents.

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MIL-T-62097C

condition, shall not disable or cause elimination of the fuel gage sending unit and shall not violate 3.2.1 or any Federal Motor Carrier Safety Regulation. A coolant shut off valve shall be included. The units required by 3.4.1.8(c) and (d) may be combined.

* 3.4.1.9 Fuel fired engine preheater. When specified (see 6.2), for diesel engine driven vehicles, a diesel fuel fired engine water heater shall be furnished to preheat the engine. The heater shall include a timer, a thermostat and a circulating pump and shall be connected to the engine coolant system. The heater shall be capable of starting and operating at -60°F and shall heat the engine to +40°F from -60°F in not more than 1 hour. The system shall be equipped with a light, visible to the driver, to indicate that the preheater is operating. The system shall include fuel warmers or preheaters conforming to 3.4.1.8(c) and (d).

* 3.4.1.10 Vernier throttle control. When specified (see 6.2), a manual vernier controlled throttle with quick release shall be furnished, except on electronically controlled engines.

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 Starting system. For diesel engine driven vehicles, a 12- or 24-volt direct current (dc) starting system, with 12-volt dc lighting system shall be furnished. Engine starting equipment shall include an ether starting system, glow plug or electric grid heater. If an ether system is furnished in lieu of a glow plug or grid heater, it shall be of the measured shot type.

The measured shot type ether system shall be key operated or manually operated from the

driver's compartment and shall be inoperative with the engine warm. Complete provisions for a replaceable ether reservoir of not less than 12 fluid ounces shall be furnished. A reservoir need not be furnished. When specified (see 6.2) for diesel engines, the starting motor shall be equipped with a thermostat controlled, automatic resetting circuit breaker to protect the motor from overcrank heat damage. The circuit breaker shall not limit cranking ability for a startable engine.

* 3.4.2.2 Ignition system. For gasoline engine driven vehicles, a 12-volt dc ignition system shall be furnished.

* 3.4.2.3 Alternator. Unless otherwise specified (see 6.2), on diesel engine driven vehicles a minimum 65-ampere alternator shall be furnished. For diesel engine vehicles, the alternator output at engine idle speed shall be not less than 45 amperes. Unless otherwise specified

(see 6.2), on gasoline engine driven vehicles, an alternator of not less than 85 amperes rated

capacity and which provides not less than 45 amperes dc output at normal engine idle speed, shall be furnished.