MIL-S-18141 Sweeper, Rotary, Towed \(S/S By A-A-55544\)

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MIL-S-18141J

4.1.1 Responsibility for compliance. All items shall meet all requirements

of sections 3 and 5. The inspection set forth in this document shall become a

part of the contractor's overall inspection system or quality program. The

absence of any inspection requirements in this document shall not relieve the

contractor of the responsibility of ensuring that all products or supplies

submitted to the Government for acceptance comply with all requirements of the

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 accept defective material.

4.2 Examination. Each sweeper shall be examined for compliance with the

requirements specified in section 3 of this specification. Any redesign or

modification of the contractor's standard product to comply with specified

requirements, or any necessary redesign or modification following failure to

meet specified requirements shall receive particular attention for adequacy and

suitability. This element of inspection shall encompass all visual examinations

and dimensional measurements. Noncompliance with any specified requirements or

presence of one or more defects preventing or lessening maximum efficiency shall

constitute cause for rejection.

4.2.1 First article inspection. The first article inspection shall be

performed on the first production item when a first article is required (see

3.2 and 6.2). This inspection shall include the examination of 4.2 and the

tests of 4.3. The first article may be either a first production item or a

standard production item from the supplier's current inventory provided the item

meets the requirements of the specification and is representative of the design,

construction, and manufacturing technique applicable to the remaining sweepers

to be furnished under the contract.

4.3 First article tests. When first article is required, the first article

shall be tested as specified in 4.3.1 through 4.3.10, as applicable. Failure to

pass any phase of the required tests shall be cause for the Government to refuse

acceptance of all sweepers until corrective action has been taken.

4.3.1 Operational tests. Engine shall be serviced and observed for loose

connections, leaks, and free action of all moving parts, started and stopped

several times and, with the brush engaged, operated for not less than 1 hour at

maximum continuous duty speed. All sweeper movements and controls shall be

operated at least five times. Brush angle to right and left shall be verified.

With the tow bar hitch attached to a towing vehicle and located at the extreme

low pintle height specified in 3.11.7, the sweeper, with the brush raised and

locked, shall be towed over straight courses and at the minimum turning radii in

both directions to determine conformance to 3.9 and tracking ability. Test

shall be repeated with the hitch at the high position. The tow bar shall then

be released from the towing vehicle while in motion to determine the adequacy of

the safety chain to control the sweeper until motion is arrested.

4.3.2 Performance tests.

4.3.2.1 Dirt and debris. A rectangular paved area, 6-1/2 feet wide and

100-feet long, shall be evenly covered with 1,000 pounds of dry dirt. In

addition, approximately 300 pounds of miscellaneous sized debris, including

pieces of cardboard, half bricks, and pieces of 1\2-inch thick boards, shall be