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)

4.3.3 IPT (first article). To determine conformance to section 3 of this specification in its entirety and contractual requirements, the Government shall select initial production trailers to be tested. The trailers shall be representative of production trailers. The trailers will be tested for

6,000 mi to include endurance, performance, reliability, maintainability, design, welding, materials, and workmanship, as specified in table V. All the tests shall be performed by the Government at a Government selected test site, utilizing all tables specified herein. The contractor shall have repair parts prepositioned at the test sites to expeditiously provide for adequate support of the tests at

no cost to the Government.

TABLE V. Location for tests.

Title of test

Requirement

Test

Paragraph

Place of manufacture

Government test site

First production

Vehicle inspection

In-process inspection Preliminary inspection

Vehicle disposition

Shakedown test IPT (first article) Reliability

Maintainability

QCI and acceptance Controls tests Comparison tests

Examinations, inspections, and tests

Section 3 inclusive, 3.1

3.2, 3.2.3,

3.2.3.1

3.2.4

3.3, 3.3.1

3.4.3

3.4.17.5

4.3.1.1

4.3.1.2.2

4.3.1.2.3

4.3.1.2.4

4.3.2

4.3.2.1

4.3.2.2

4.4.7

4.5

4.6

4.7

4.7.1

4.7.2

4.7.3

x x

Accept- ance

Control

x x x

Materials check Screw threads check

Lashing rings check