MIL-T-12407 Trucks: Patient Transport, Van Conversion, Diesel Or Gasoline Engine Driven, 4X2 And 4X4, Modified CommercialThis specification covers forward control, diesel or gasoline engine driven, four-wheel, two-wheel and four-wheel drive commercial trucks converted for use as 4 litter patient or 8 seated passenger patient transport vehicles.

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MIL-T-12407X(AT)

* 3.4.7 Frame. The frame shall be the manufacturer's standard for the vehicle furnished.

3.4.8 Suspension. The vehicle shall be equipped with a suspension system, with components having a rated capacity at least equal to the load imposed on each member, measured at the ground, with the vehicle loaded to the specified GVW. When suspension is rated at the spring pads, unsprung weight shall be deducted.

3.4.8.1 Shock absorbers. The vehicle shall be equipped with heavy duty, hydraulic, double-acting shook absorbers on the front and rear axles. The heavy duty shock absorbers shall have a diameter larger than the manufacturer's standard shock absorbers for the model vehicle furnished.

3.4.9 Axles. Axle ratings shall be at least equal to the load imposed on each axle, measured at the ground, when the vehicle is loaded to the required GVW, as specified in 3.2.5. A single reduction rear axle shall be furnished. Gear ratios shall provide performance specified in

3.3.1.

3.4.9.1 Positive traction differential. Unless otherwise specified (see 6.2), the rear axle shall have a positive traction, limited slip or automatic locking differential. An appropriate warning for safe vehicle jacking shall be displayed prominently (consistent with the type of differential used).

3.4.9.2 Drive hubs, front wheel (model 4x4). Unless otherwise specified (see 6.2), automatic front wheel locking hubs shall be provided for model 4x4 vehicles.

* 3.4.10 Wheels, rims, tires and tubes. The vehicle shall be equipped with single front and rear wheels. Multi-piece rims shall not be furnished. Rim size, tire size, and load range

(ply rating) shall be the same for all tires on each vehicle. Rims and tire ratings shall conform to Tire and Rim Association or European Tyre and Rim Technical Organisation recommendations for the type and size of the tires furnished.

* 3.4.10.1 Tires. The tires shall be tubeless truck type with highway tread. The tires shall have a minimum of load range D (8-ply). The tires shall have a rated capacity at least equal to the load imposed on each tire, measured at each wheel, at the ground, with the vehicle loaded to the required GVW as specified in 3.2.5. Tires and tire size designation systems shall conform to Tire and Rim Association or European Tyre and Rim Technical Organisation recommendations.

3.4.10.2 Inner tubes. When tube type tires are specified in procurement documents, inner tubes shall be of heavy duty type and shall be of proper size for the tires furnished. Tire flaps shall be provided for tube type tires in accordance with Tire and Rim Association recommendations.