MIL-PRF-83812 Forklift, Truck, 10,000 And 13,000 Pound Capacity, Adverse TerrainThis document covers a standard commercial, diesel-engine, four wheel drive, adverse terrain forklift truck, which is air-transportable in C-130, C-17 and C-5 aircraft. The truck will be used primarily to load and unload palletized cargo to and from military aircraft. It will also be used to handle loads of various sizes and weights, up to the rated load. The truck will operate on hard paved surfaces, soft soil, mud, snow, and sand, on level and hilly terrain.

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MIL-PRF-83812D

shall not be provided. Removable panels, if provided, shall be attached with captive fasteners.

Tire valve stem caps shall be made of plastic.

3.3.4.3 Seatbelts and operator s restraint.

3.3.4.3.1 Seat belt. An operator s seat belt with a retractor shall be installed. The seat belt must

conform to SAE J386, Type One. However, the installation of a lap belt alone will not be

considered as adequate occupant restraint.

3.3.4.3.2 Additional restraint. Additional restraint devices designed to ensure the operator s

body remains entirely within the protection of the frame and overhead guard in the event of tip

over will also be provided. The restraint system shall not interfere with operator access or

mobility, or the vehicles operation. (That is special seat, shoulder belt, etc.)

3.3.4.3.3 Decal. A warning decal shall be provided advising of the hazards of tip over and the

importance of using the restraint system.

3.3.4.4 Sound levels. The sound level measured at the operator s station should not exceed 84

dB(A). If the sound level is above 84 dB(A), the contractor shall provide a hazardous noise

warning plate stating that operator s hearing protection is required when operating this forklift.

The plate shall be made of a corrosion resistant material and shall be at least 4.0 square inches.

It shall have black lettering on a yellow background and shall be located to be visible as the

operator enters the cab, or is seated. Sound level shall not exceed 93 dB(A).

3.3.5 Electromagnetic interference (EMI). The forklift shall be in accordance with the following

radiated emission and susceptibility requirements of MIL-STD-461: RE102 and RS103.

3.3.6 Human engineering. The forklift shall be designed in accordance with MIL-STD-1472 for

ease of operation, inspection, and maintenance, including the use of arctic mittens and Mission-

Oriented Protective Posture (MOPP) Level 4 Chemical Warfare Gear.

3.3.7 Fastening devices. All screws, bolts, nuts, pins, and other fastening devices shall be

properly designed, manufactured, and installed with adequate means of preventing loss of torque

or adjustment. Cotter pins lock washers, or nylon patches shall not be used for this purpose,

except for the attachment of trim items or as provided in commercial components. Tapped

threads shall have a minimum thread engagement in accordance with TABLE I.

TABLE I. Minimum thread engagement.

Material

Minimum Thread Engagement

Steel

1.0 times the nominal fastener diameter

Cast iron, brass, or bronze

1.5 times the nominal fastener diameter

Aluminum, zinc, or plastic

2.0 times the nominal fastener diameter

3.3.8 Welders and welding. Welding procedures shall be in accordance with a nationally

recognized welding code. The surface parts to be welded shall be free from rust, scale, paint,