MIL-T-62518 Trucks, Maintenance: With 9 To 37 Meters 30 To 120 Foot Multi-Position Aerial Platform, Modified CommercialThis specification covers diesel and gasoline engine driven, four-wheel, two-rear-wheel drive; four-wheel, four-wheel drive; and six-wheel, four-wheel-drive trucks having minimum gross vehicle weights GVW of 6800 kilograms kg 15,000 to 22 700 kg 50,000 pounds, equipped with maintenance bodies and 9 to 37 meters m 30 to 120 foot multi-position, articulating, boom type aerial platforms. 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-62518A

3.1.1.10 Drive hubs. When specified for model 4x4, class A and B vehicles (see 6.2), manually operated drive hubs for disengaging the front wheels from the drive train shall be provided, except for vehicles equipped with interaxle compensating devices between front and rear axles (see 3.4.5.1.2), or air brake equipped chassis.

3.1.1.11 Silicone brake fluid. When specified for class A and B vehicles (see 6.2), and if available as manufacturer's standard or optional brake fluid, silicone brake fluid conforming to MIL-B-46176 shall be provided in the hydraulic brake system. A tag on the master cylinder or a permanent decal near the master cylinder shall be furnished stating "CAUTION: USE SILICONE BRAKE FLUID ONLY, MIL-B-46176."

* 3.1.1.12 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.

* 3.1.1.13 4x4 conversion. The chassis manufacturer's standard 4x2 truck chassis may be modified to provide all wheel drive conforming to the requirements specified herein if:

(a) The conversion axle manufacturer's engineering department specifically approves and certifies that all such modifications meet the design requirements and standards of the conversion axle manufacturer. Certification shall be based on both design analysis and proving ground test reports, which shall be made available to the engineering and quality assurance offices of the procuring activity.

(b) The chassis manufacturer's front axle before conversion has the same load rating as the conversion axle to be installed.

(d) Components used in the all wheel drive conversion are approved for the conversion

application by the component manufacturers.

(e) The converted vehicle is certified to conform to Federal Motor Vehicle Safety

Standard, No. 121, by the intermediate or final manufacturer.