MIL-S-62549 Semitrailer, Low Bed, 40 Ton Nominal Payload For Transportation Of Heavy Engineer Construction Equipment, M870A2This specification covers a level frame, low bed semitrailer equipped with a folding gooseneck for front loading and movement of heavy engineer construction equipment.

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MIL-S-62549(AT)

is furnished by the contractor that there are not similar defects.  Such defects on all trailer(s) shall be corrected by the contractor at no cost to the Government.  The contractor shall correct defects on all trailer(s) represented by the failed control test trailer(s).  Another trailer(s) with corrective action implemented shall be subjected to the control test.

4.6  Comparison test.  The Government may select semitrailer(s) at any time to examinations and test as specified in tables I through VII to determine conformance to contractual, specification, performance, materials, welding, workmanship, and design requirements and to compare the test results with previous standards.  The tests shall be conducted at Government proving grounds or other test site(s) designated by the Government.  The semitrailer(s) shall be tested with payloads as specified.  The semitrailer(s) selected shall not include any semitrailer(s) previously tested for conformance to 4.5 (control test).

TABLE VII.  Comparison test profile, 3,000 mi.  1/

1/  Comparison test to be conducted at Aberdeen proving ground.

2/  Speeds shall be up to and including values specified.

3/  Hard-surfaced road such as Perryman high speed paved.

4/  Off-road (level to slightly hilly) such as Perryman "2".

4.6.1  Test failure.  Failure of any trailer(s) tested to comply with any of the requirements specified in the contract or any major defects, of design, workmanship, welding, or material nature occuring during or as a result of the test cycle, may be considered cause for refusal to

continue acceptance of trailer(s) by the Government until objective evidence has been provided by the manufacturer that corrective action has been taken.  Any defect found during or as a result of the test shall be prima facie evidence that all trailer(s) are similarly defective unless evidence satisfactory to the contracting officer is furnished by the contractor that they are not similarly defective.  Such trailer(s) shall be corrected by the contractor at no cost to the Government.

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