MIL-T-62357 Trailers, Tank: Potable Water And General Purpose, 500 Gallon, Two And Four-Wheel, Modified CommercialThis specification covers 500 gallon capacity, two-wheel and four-wheel wagon type tank trailers for hauling and dispensing liquids see 6.1 and 6.3. 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-62357A

(c)   Bleed-down relay emergency valve

(d)   Hydraulic master cylinder with air chamber

(e)   Air connectors with SAE J318 gladhand couplers mounted at front of the trailer

(f)    Dummy gladhand couplers with retaining chains or cables

(g)   Permanent identification tags for emergency and service lines.

3.5.5.4  Parking brake.  Manually applied parking brakes shall be furnished.  The parking brakes shall conform to Federal Motor Carrier Safety Regulation 393.41. When brake cables are used, the cables shall be of corrosion resistant steel.  Provisions shall be made for slack adjustment.  Lubrication fittings shall be provided.

3.5.5.5  Wheel chocks.  When specified (see 6.2), four wheel chocks shall be provided.  The wheel chocks shall be secured to the trailer with corrosion resistant chains or cables.  Provisions for stowage of each wheel chock near the wheel to be chocked shall be provided.

3.5.6  Electrical system.

*    3.5.6.1  Lighting.  The electrical lighting system shall be 12 volts.  All vehicle lights, reflectors, and wiring (including electric brakes) shall conform to Federal Motor Carrier Safety Regulations 393.14, 393.19, 393.20, 393.22, 393.23, 393.25, 393.26 (a, b, c and d), and 393.27 through 393.33.  At least one pair of brake lights shall override the four-way emergency flasher or the two systems shall be independent of each other.  Lights and reflectors shall not be mounted on vehicle bumpers.

3.5.6.2  Electrical receptacle.  A trailer electrical receptacle with a spring-loaded cover assembly shall be installed on the forward end of the drawbar.  The receptacle shall conform to SAE J560, with conductors connected and color-coded as specified in SAE J560.

3.5.6.3  Brake wiring.  Electric brakes shall be wired to the auxiliary circuit of the SAE J560 seven conductor electrical connector.  All wiring shall be properly mounted and secured with clamps.  Wiring shall be heavy wall thermoplastic insulated cable and shall be enclosed in conduit.

*    3.5.6.4  Electrical jumper cable.  Unless otherwise specified (see 6.2), an electrical jumper cable conforming to SAE J1067, with a cable plug at each end conforming to SAE J560, shall be provided.  Both plugs shall be equipped with a grip for withdrawing from the connector sockets. Stowage provisions with means of hanging the cable with plugs pointing down shall be provided. The cable shall be not less than 3 feet longer than the distance from the trailer electrical receptacle to the lunette.  The cable shall be boxed, marked and secured to the vehicle for shipment.

*    3.5.7  Bumper.  A rear bumper shall be furnished and shall conform to Federal Motor Carrier

Safety Regulation 393.86 and DOT Safety Regulation 178.345.  The bumper shall extend not less

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