MIL-T-62145 Trucks: Elevating Body, Diesel And Gasoline Engine Driven, 21,000 To 39,500 Pounds Gvw, 4X2 And 6X4, CommercialThis specification covers diesel and gasoline engine driven four-wheel, two-rear-wheel drive, and six-wheel, four-rear-wheel drive vehicles having minimum gross vehicle weights GVW of 21,000 to 39,500 pounds, for normal operating conditions. The vehicles are commercial trucks equipped with stake and platform or van bodies, capable of elevating the body and cargo to a specified height for loading and unloading the cargo into and out of aircraft. The vehicles procured under this specification are commercial items which shall be warranted by the manufacturer as specified in acquisition documents.

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MIL-T-62145E

Not less than 4 additional full width crossmembers on class C vehicles and not less than

5 additional full width crossmembers on class D and E vehicles shall be provided in the area of the rear bogie.  The additional crossmembers may be joined by welding to the normally located crossmembers in the rear bogie area.  Crossmembers shall be reinforced by gusset plates or brackets at points of attachment to longitudinal sills.  Contact edges of crossmembers with longitudinal sills, and contact edges of welded reinforcements shall be welded for not less than

50 percent of the edge length.  Longitudinal sills shall be constructed of structural steel channels

or formed channels.  Formed channel sills shall be reinforced within the sill, at each crossmember or body mounting point, with formed channel reinforcements.  Frame members shall be of a continuous length without splices or joints.

TABLE IX.  Framing gages.

*    3.6.3  Flooring.  Flooring shall be safety steel tread plate not less than 1/4 inch in thickness exclusive of the projections.  A medium tread plate pattern shall be furnished.  When the body floor is constructed in two or more pieces, continuous seam welds having full penetration shall be provided the full length of each seam.

*    3.6.4  Front bulkhead.  A full-width removable front bulkhead shall be furnished.  The bulkhead shall be not less than 42 inches in height, measured from the platform floor.  The bulkhead shall be formed or reinforced for rigidity.  The bulkhead shall be provided with a screen window in alinement with the rear window of the truck cab.  The screen shall be corrosion-resistant, of not more than No. 6 mesh, number 20 wire, having a square opening of

0.132 inch.  The screen shall be enclosed in a metal frame and secured by screws to the

bulkhead.  The screen window shall be covered on the inside with a No. 2 mesh, number 16 wire,

having a square opening of 0.437 inch.  The bulkhead stakes shall be on the outside of the payload area and shall be bolted to the bulkhead.  The bulkhead shall be secured in stake pockets and to the side sections with draw-down type fasteners.  Openings for the chassis mounted winch line or body mounted winch hydraulic lines, if a winch is furnished, shall be provided.  The bulkhead shall be capable of withstanding a horizontal static load equal to one half the payload capacity of the vehicle without permanent distortion of the bulkhead or its mountings.

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