MIL-T-62059B(AT)
contract. Acceptance of the first production vehicle shall not constitute a waiver by the
Government of its rights under the provisions of the contract.
4.3.1 Vehicle weight. The fully equipped first production vehicle shall be weighed to determine curb weight and distribution of curb weight on the coupling device and axles. The loads imposed on the coupling device and axles shall be calculated, with the vehicle loaded, to ascertain that the suspension, axles and tires furnished are of adequate capacity to meet contractual requirements.
4.3.2 Road test. The first production vehicle shall be road tested, fully equipped, and fully loaded by the contractor to assure the vehicle will operate in accordance with contractual requirements. Unless otherwise specified (see 6.2), the road test shall be for a distance of
1000 miles. Approximately half the mileage shall be on paved streets or highways at speeds up to
55 mph and half shall be on gravel or dirt roads at speeds up to those deemed safe. At least five sudden stops shall be made from a speed of not less than 20 mph. Tracking ability shall be observed to verify conformance to 3.3.1; turning ability shall be observed to verify conformance
to 3.3.2. After the test the trailer shall be examined for evidence of misalinement, binding or other malfunction.
4.3.3 Test failure. The vehicle shall successfully complete the entire test. Failure of the vehicle to successfully complete the test shall be cause for nonacceptance of any of the contract quantity, pending correction of deficiencies and evidence of corrective action which shall prevent the recurrence of similar deficiencies in the contract quantity. Failure of the vehicle to successfully complete the test shall not constitute an excusable delay in meeting scheduled deliveries. The equipment shall be closely monitored throughout the test for interference with
towing operations, and for instability as evidenced by poor tracking or uncontrollable sideslipping, skidding, swerving, or tilting. The equipment also shall be closely monitored for loosening of parts, interference between parts, leakage of fluids or lubricants, overheating of components, and for damage, permanent distortion, or excessive wear of parts and components. The equipment shall be disassembled to the extent necessary for inspection for unusual wear or damage to components. Substitution of a new trailer or replacement of a major component may require complete retest at the discretion of the Government representatives. Rejection of the test trailer shall be for damage or deficiencies, including but not limited to the following:
(a) Damage caused by collision
(b) Failure of any major component
(c) Vibration due to misalinement of wheels or frame
(d) Vibration due to the type of construction or mounting
(e) Evidence of abnormal tire wear due to misalinement or unbalance
(f) Failure of any vehicular safety device, such as brakes and electrical circuits
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