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

3.3.9.13 Heater and defroster. The heater and defroster normally provided on the contractor s

standard, commercial model shall be provided.

3.3.9.14 Towing hitch. A pintle type, towing hitch shall be installed at the center rear of the

forklift, with the center of the hitch opening 22 to 30 inches above ground level. The pintle shall

be capable of sustaining a rearward, horizontal force of at least three times the gross vehicle

weight (GVW) of the forklift. The pintle type, towing hitch shall be designated as a retrieval

device only, either by marking on the forklift or in the operator s manual.

3.3.9.15 Towing lugs. Two lugs, one on each side of the towing hitch, used for towing or

securing safety chains shall be installed. The lugs shall be of sufficient diameter to accept

common chains and hooks three inches in diameter and capable of sustaining a rearward,

horizontal force of at least three times the GVW of the forklift for a maximum of 500 feet.

3.3.9.16 Tires. The tires shall be pneumatic, with an off-road tread pattern. Tire loading shall

not exceed the tire load limits specified in Tire and Rim Association Yearbook when using the

off the road 5 MPH tables. When specified (see 6.2), the manufacturer shall provide a balanced

wheel and tire assembly.

3.3.9.17 Horn. The manufacturer s standard horn shall be provided.

3.3.9.18 Conveyorized fork attachment. The forklift shall be equipped with two conveyorized

fork attachments (one for each fork) to be used for the transfer of a loaded 88 inch wide by 108

inch Air Force HCU-6E aluminum pallets; 10,000 pounds for Type I and 13,000 pounds for

Type II. The pallets shall be picked up with the 108 inch dimension lateral to the forks

(perpendicular to centerline of forklift). The following features shall be included:

a. Each conveyor shall securely attach to each fork and shall remain securely attached

during all pallet loading and unloading operations.

b. Each conveyor shall have two rows of rollers (one row on each side of the fork tine).

c. The rollers shall be sized, located, and spaced so that the conveyor provides lateral and

longitudinal support to the pallet described in (see 3.3.9.18), without pallet damage or

excessive wear, during loading and unloading.

d. Each conveyor roller shall be of adequate diameter, width, and wall thickness to support

the transfer of the loaded pallet specified in (see 3.3.9.18).

e. A quick attach/detach reversible, dual purpose "toe" shall be incorporated on the leading

edge of each unit between the longitudinal rows of rollers. The one edge of the "toe",

when exposed for use, shall provide a nonmetallic bumper to prevent metal contact with

the aircraft. The other edge of the "toe", when exposed for use, shall provide a wedge,

equipped with varying diameter rollers, to permit sliding of the conveyorized forks

beneath a loaded pallet resting on the ground.