Wheel splash and stone throw protection

Page Title: Wheel splash and stone throw protection
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MIL-T-62021E(AT)

3.1.1.6 Wheel splash and stone throw protection. The vehicle shall have rubber mud flaps

to the rear of the rear wheels. All tilt cabs shall have rubber mud flaps to the rear of the front

wheel. A metal strip not less than 3.2 millimeters (mm) (0.125 inch) thick and not less than

25 mm (1 inch) wide, extending the entire width of the mud flap, shall be installed to prevent the

bolt heads or bolt nuts from damaging the mud flap. As an alternate method of attaching the mud

flaps, tabs or clips with minimum surface contact dimensions of 25 mm (1 inch) high by 32 mm

(1.25) inch wide by 2.4 mm (0.094 inch) thick shall be furnished at each bolt. All splash shield

and mud flap installations, front and rear, shall conform to the rear wheel splash and stone throw

protection provisions of SAE 3682.

3.1.1.7 Trailer towing package. When specified (see 6.2), a trailer towing package

consisting of a pintle, safety chain attachment devices, a lighting receptacle and associated

reinforcements and wiring shall be installed on the rear of the vehicle. The pintle shall be of the

rotating type conforming to MS 51118 and shall be installed on the chassis frame with

reinforcements to transfer a vertical tongue load of not less than 815 kg (1,800 pounds) and a

horizontal drawbar load of not less than 80 kilonewtons (kN) (18,000 pounds) directly to the

chassis rails. The rearmost portion of the pintle shall be forward but not more than 100 mm

(4 inches) forward of the rearmost part of the vehicle. Two trailer safety chain attachment

devices, one adjacent to each side of the pintle, shall be provided. Each attachment device shall

provide an ultimate strength at least equal to the GVW of the truck furnished. The lighting

receptacle, conforming to SAE J560 with its conductors connected and color coded as specified

therein, shall be mounted in a readily accessible location near the pintle.

3.1.1.8 Spark arrester. As specified herein (see 3.4.4), the vehicle shall be furnished with

an exhaust system spark arrester.

3.1.1.9 Brake lights. At least one pair of brake lights shall override the four-way

emergency flasher or the two systems shall be independent of each other. Modifications to the

manufacturer's standard product to accommodate this requirement shall not compromise

conformance to any Federal Motor Carrier Safety Regulation referenced herein or to any Federal

Motor Vehicle Safety Standard. If additional lights are added to the vehicle, the lights shall be

selected from the chassis manufacturer's standard matching hardware.

3.1.1.10 Hydraulic fluid identification plate. When a body hydraulic system is furnished

and the hydraulic system requires fluid replenishment, a decal or plate shall be installed near the

filler cap and shall identify the type of hydraulic fluid to be used. (See 3.1.1.11.)

3.1.1.11 Decals and data plates. The hydraulic fluid identification information and the

power takeoff caution notice shall be on a standard decal or plate from the supplier of that item or

shall conform to type I or type II, class 1 of MIL-M-43719 or composition A (class l or 2) or

composition C of MIL-P-514.

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