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

contract. Sampling inspection, as part of manufacturing operations, is an acceptable practice to ascertain conformance to requirements, however, this does not authorize submission of known defective material, either indicated or actual, nor does it commit the Government to acceptance of defective material.

4.2 Government verification. Quality assurance operations performed by the contractor will be subject to Government verification at unscheduled intervals. Verification will consist of observation of the operations to determine that practices, methods, and procedures of the contractor's inspection are being properly applied. Failure of the contractor to promptly correct product deficiencies discovered shall be cause for suspension of acceptance until correction has been made or until conformance of product to specification criteria has been demonstrated.

4.3 First vehicle preliminary inspection.

* 4.3.1 Welding procedure and workmanship specimen evaluation. Prior to the start of fabrication of the subframe and hoist and components and assemblies thereof, an inspection shall be conducted by the Government to evaluate workmanship specimens and welding procedures (see 3.8.1 and 3.8.2).

4.3.1.1 Macro-etching. Workmanship specimens shall be cross-sectioned and macro-etched. Both parts of the specimens shall be made available to the Government representative for examination.

* 4.3.2 In-process inspection of body and components. The first complete assembled body and components (subframe and hoist, and their components and assemblies) shall receive an in-process inspection by the Government prior to prime painting. The inspection shall be

conducted to evaluate workmanship and to determine conformance to structural requirements.

The vehicle shall be tested in accordance with 4.3.2.1 through 4.3.2.3 prior to prime painting, and dye penetrant or magnetic particle testing shall be performed on all critical areas to inspect for crack indications under dynamic and static conditions. Any evidence of cracks or permanent deformation shall be cause for rejection of the vehicle.

4.3.2.1 Dynamic conditions. With the test load specified in table V, the body shall be raised and lowered for at least 1/2 hour while being inspected for cracks and permanent deformation.

4.3.2.2 Static conditions. With the body in its highest position, three times the payload specified in table II for classes A, B, and C and two times the payload for classes D and E shall be placed on the body.

4.3.2.3 Critical areas. At least the following critical areas shall be inspected by the dye penetrant or magnetic particle testing: