MIL-T-62032 Trucks, Tank: Fuel Servicing And Aircraft Fuel Servicing, 1,000 To 4,000 Gallon, Diesel And Gasoline Engine Driven, 16,000 To 50,000 Pounds Gvw, 4X2, 4X4, 6X4, And 6X6, Modified CommercialThis specification covers diesel and gasoline engine driven, four-wheel, two- or four-wheel drive, and six-wheel, four- or six-wheel drive, single or dual delivery fuel servicing and aircraft fuel servicing tank trucks, with product capacities from 1,000 to 4,000 gallons, having minimum gross vehicle weights GVW of 16,000 to 50,000 pounds for normal operating conditions. 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-62032H

commercial quality, with internal components compatible with gasoline, diesel fuel, and turbine fuel. The hose reel shall be mounted in an underslung cabinet on the side of the vehicle opposite of the driving controls. Provisions shall be made for a properly stowed and secured hose nozzle after the hose has been wound on the reel.

3.6.1.1 Dispensing hose. The hose reel shall be equipped with 100 feet of 1.5 inch id noncollapsible commercial hose, compatible with the fuels listed in 3.6.1.

* 3.6.1.2 Type I delivery nozzle. The delivery end of the hose shall be equipped with an aluminum-copper, sparkproof metal nozzle having a 1-1/2 inch inlet. The nozzle shall be trigger-action operated, and shall have a rigid nozzle tube. Unless otherwise specified, the nozzle shall be furnished without notches, with a 100 mesh strainer, and shall be rated for not less than 100 gpm. When specified (see 6.2), the nozzle shall be of the automatic shutoff type with notches, without strainer, rated at not less than 75 gpm, OPW Model 1290 or equal.

* 3.6.1.3 Dust caps. Each faucet and nozzle shall be provided with a dust cap, complete with corrosion resistant security chain or cable.

* 3.6.2 Pump and strainer. A positive displacement rotary pump shall be furnished. The pump shall provide a flow of not less than 100 gpm at a hose nozzle rated at 100 gpm at a power takeoff output shaft speed of not more than 1,000 rpm. The pump shall have 2.5 inch minimum suction and 2-inch minimum discharge openings. The pump shall have replaceable, lapped, carbon ring, mechanical seals to protect externally lubricated bearings from fuel. The pump shall incorporate a bypass pressure regulator with a pressure control adjustable from 50 to 75 psi. The bypass pressure regulator shall be capable of limiting the pressure rise to 25 percent of the

desired discharge pressure. A 2.5 inch line strainer with brass screen shall be installed upstream

of the pump. The pump shall be provided with a drain.

3.6.2.1 Pump installation. The product fuel pump shall be installed under the cargo tank and shall be driven from the power takeoff (see 3.4.5.4). An engine hand throttle, operable from the cab, shall be furnished and permanently set to limit the engine speed to the speed required for rated flow capacity of the tank product fuel pump. Mechanical or air-operated nonelectrical interlocks shall be provided to prevent movement of the vehicle when the power takeoff is engaged.

3.6.3 Measuring meter. A 100 gpm positive displacement meter shall be provided, having a built in strainer and air release, and shall be calibrated for handling diesel fuel, turbine fuel, or gasoline. When specified (see 6.2), the meter shall be calibrated for the specified fuel. The meter shall have a 2-inch inlet and outlet and shall be accurate within 1 percent at 50 gpm flow rate and accurate within 2 percent at other flow rates between 25 gpm and 100 gpm. The