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    ARMY MIL-S-62469-1983 SEMITRAILER LOWBED 15 TON 4 WHEEL PATRIOT M974 SERIES《M974系列爱国者号4轮15吨半拖车》.pdf

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    ARMY MIL-S-62469-1983 SEMITRAILER LOWBED 15 TON 4 WHEEL PATRIOT M974 SERIES《M974系列爱国者号4轮15吨半拖车》.pdf

    1、c t K-. - MIL-S-bZib9 23 b 20332b 7 a MIL-S-62469 (AT ) 5 July 1983 - .! , MILITARY SPECIFICATION SEMITRAILER, LOWBED, 15 TON, 4 WHEEL, PATRIOT, M974 SERIES This specification is approved for use by US Army Tank-Automotive Command, Department of the Army, and is available for use by all Departments

    2、and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification covers a four-wheel, low-bed semitrailer with a maximum payload capacity of 30,000 pounds (lbs) for use as equipment transporter in the Air Defense System, Guided Missile, PATRIOT. 1.2 Classification. Semitrailer shall

    3、 be of the following models as specified (see 6.2). TABLE I. Semitrailer models. Model Description M974 Semitrailer, lowbed, PATRIOT M97 6 Semitrailer, lowbed, guided M1033 Semitrailer, lowbed, large missile transporter repair parts transporter Beneficial comments (recommendations, additions, deleti

    4、ons) and any pertinent data which may be of use in improving this document should be addressed to: US Army Tank-Automotive Command, ATTN: DRSTA-GSS, Warren, MI 48090, by using the self-addressed Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document, or by

    5、 letter. FSC 2330 - Licensed by Information Handling Services2. APPLICABLE DOCUMENTS 2.1 Government documents. 2.1.1 Specifications, standards, and handbooks. Unless otherwise specified, the following specifications, standards, and handbooks, of the issue listed in that issue of the Department of De

    6、fense Index of Specifications and Standards (DoDISS) specified in the solicitation, form a part of this specification to the SPECIFICATIONS FEDERAL TT-(2-490 TT-P - 1 7 5 7 exten; specified herein. - Cleaning Method and Pretreatment of Ferrous - Primer Coating, Zinc Chromate, Low Moisture Surfaces f

    7、or Organic Coatings Sensitivity MILITARY MIL-P-5 14 - MIL-T-12459 - DOD-P-15328 - MIL-R-0046164 - MIL-P-52192 - MIL-E-52798 - MIL-E-5 2 83 5 - MIL-E-52929 - STANDARDS MILITARY MIL-STD-105 MIL-STD-130 MIL-STD-209 MIL-STD-454 MIL-STD-642 MIL-STD-1261 Plates, Identification, Instruction an$ Marking, Bl

    8、ank Tire, Pneumatic, for Military Ground Vehicles Primer (Wash), Pretreatment (Formula No. 117 for Metals) (Metric) Rustproofing for New and Fielded Military Vehicles Primer Coating, Epoxy Enamel, Alkyd, Camouflage Enamel, Modified Alkyd, Camouflage, Lusterless Enamel, Alkyd, Camouflage, Flash Dry S

    9、ampling Procedures and Tables for Inspection by Attributes Identification Marking of US Military Property Slinging and Tiedown Provisions for Lifting and Tying Down Military Equipment Standard General Requirements for Electronic Equipment Identification Marking of Combat and Tactical Transport Vehic

    10、les Welding Procedures for Constructional Steels 2.1.2 Other Government documents, drawings, and publications. The following documents, drawings, and publications form a part of this specification to the extent specified herein. 2 Licensed by Information Handling ServicesIIL-S-b2469 23 W 979370b 020

    11、3328 2 W DRAWINGS ARMY 8750023 10252280 11455333 - Semitrailer, lowbed, PATRIOT, M974 - Conversion kit, semitrailer, guided misslle - Conversion kit, semitrailer, large repair transporter, M976 parts transporter, M1033 (Copies of specifications, standards, handbooks, drawings, and publications requi

    12、red by manufacturers in connection with specific acquisition functions should be obtained from the contracting activity, or as directed by the contracting officer.) 2.2 Other publications. The following document(s) form a part of this specification to the extent specified herein. The issues of the d

    13、ocuments which are indicated as DoD adopted shall be the issue listed in the current DoDISS and the supplement thereto, if applicable. AMERICAN SOCIETY OF MECHANICAL ENGINEERS (ASME) Boiler and Pressure Vessel Code, Section 9, Welding and Brazing Qualifications. (Application for copies should be add

    14、ressed to the American Society of Mechanical Engineers, 345 East 47th Street, New York, NY 10017). AMERICAN WELDING SOCIETY (AWS) .D1.1 - Structural Welding Code, Section 5, Qualification. (Application for copies should be addressed to the American Welding Society, 2501 Northwest 7th Street, Miami,

    15、FL 33125). (Industry association specifications and standards are generally available for reference from libraries. technical groups and using Federal agencies . They are also distributed among 2.3 Order of precedence. In the event of a conflict between the text of this specification and the referen

    16、ces cited herein, the text of this specification shall take precedence. 3. REQUIREMENTS 3.1 First article preproduction inspection. When specified (see 6.2), a preproduction model of the complete semitrailer to be furnished under this - specification shall be produced after award of contract and bef

    17、ore beginning production. quantity and should be constructed with tools and equipment normally used in Samples shall be representative of units to be manufactured in 3 Licensed by Information Handling ServicesNIL-S-62467 23 W 9779906 0203327 4 w quantity production. tests specified in 4.4. in formul

    18、a, material, or manufacturing procedure shall void approval. Product, with changes incorporated shall be examined and tested in accordance with, and shall pass preproduction inspection specified in 4.4. Samples shall be inspected and pass the preproduction After preproduction approval is granted, an

    19、y change 3.1.1 Initial production inspection. Unless otherwise specified (see 6.2), an initial production semitrailer to be furnished under this specification shall be produced after award of contract. The initial production samples shall be selected by a Government representative from the first pro

    20、duction units manufactured. The samples selected shall be inspected and pass the tests specified in 4.4.1.1. is granted, any change in formula, material, or manufacturing procedure shall void approval. tested in accordance with, and shall pass initial production tests specified in 4.4.1.1. After ini

    21、tial production approval Product, with changes incorporated shall be examined and 3.2 Reliability-maintainability. 3.2.1 Reliability. The trailer shall meet a reliability requirement of 6,000 Mean Miles Between Failure (MMBF) to be demonstrated when coupled-with suitable towing vehicle in accordance

    22、 with the operational profile (3.2.1.1) during test (see 4.4.2.3) (see 6.6 for definition and classification of a failure. ) . 3.2.1.1 Operational profile. An 8,000-mile operational profile test shall be apportioned as shown in table II. TABLE II. Operational profile test. COURSE DISTANCE PERCENTAGE

    23、 High-speed paved road 1,875 miles 23 . 4% Improved gravel road 1,625 miles 20.3% Level, substantial road 1,250 miles 15.6% bed, moderate cross-country Hilly secondary road 2,500 miles 31.2% Belgian block 750 miles 9.4% 3.2.2 Maintainability. Total maintenance, excluding driver and crew checks and s

    24、ervices, shall not exceed 12 man-hours during the flrst 8,000 miles of specified operation. This equates to a maintenance ratio (MR) of 0.030 at 20 operational miles equivalent to one operational hour. scheduled maintenance interval shall be 8 months or 8,000 miles, whichever comes first (see 4.4.2.

    25、3.1). The 4 r- Licensed by Information Handling ServicesMIL-S-b2qb7 23 W 77779Ob 0203330 O W MIL-S-62469(AT) 3.3 Materials. Materials shall be as specified herein and in referenced specifications and drawings. might affect servic,eability and functions of the finished product (see 4.1.2 and 6.7). Ma

    26、terial shall be free of all defects that 3.3.1 Qualified products. The contractor shall be responsible for using all assemblies and parts necessary in semitrailer construction that are listed as qualified products on the Qualified Products List (QPLs) and those approved for inclusion on the QPLs. As

    27、semblies and parts determined as QPL items appear on the engineering parts list. inspection records shall specifically list all QPL items by part or drawing number, name of supplier, and number and date of the QPL. and parts are approved as qualified products but not yet listed on QPLs, the contract

    28、or shall list the products by number and date of the approval document with the name of supplier (see 4.1.2). The contractor manufacturing When assemblies 3.3.2 Fungus resistant product. Materials required to resist fungus shall meet the requirement of MIL-STD-454, Requirement 4 (see 4.1.2). 3.3.3 F

    29、lammable materials. Flammable materials shall not be used unless the materials are provided with suitable protection to prevent hazard (see 4.1.2). 3.3.4 Ozone resistance. When rubber components are required to be ozone resistant, the degree of resistance shall be as specified in applicable specific

    30、ations or drawings (see 4.1.2). 3.4 Construction. Trailer components, subassemblies and assemblies shall be fabricated and assembled into a complete trailer in accordance with applicable drawings (see 2.1.2). Guided missile transporter M976 is manufactured from the M974 base trailer and from the con

    31、version kit, Drawing 10252280. Large repair parts transporter M1033 is manufactured from the M974 base trailer and from the conversion kit, Drawing 11455333. as-semblies , and subassemblies requiring identification shall be identif led in accordance with MIL-STD-130. The fabrication and manufacture

    32、of equipment shall be executed in a manner commensurate with the intended use of the end item and accepted Government standards and specifications delineated herein. f.- All parts, 3.4.1 Wheel bearing seals. When fording or operating in mud, sand, or snow, seals shall prevent entrance of foreign mat

    33、ter into bearings. Water contamination of wheel bearing lubricant after fording operations, shall be not more than 2 percent by volume. All bearing seals shall prevent leakage of lubricants from the bearings (see 4.8.2). 3.4.2 Electrical system. The trailer shall be equipped with a 24-volt electrica

    34、l lighting and signaling system in accordance with applicable drawings and provide connection to a suitable towing vehicle 24 volt system (see 4.8.3). 3.4.2.1 Electrical circuits. Electrical circuits shall maintain continuity from end to end without evidence of internal or external shorts during all

    35、 trailer operating conditions (see 4.8.3). 5 Licensed by Information Handling Services3.4.2.2 Lights. Lights specified on applicable drawings shall be capable of operating throughout all trailer operating conditions (see 4.8.4). 3.4.3 Welding. Metal-arc welding of structural steels and the procedure

    36、s required for documentation prior to production welding shall be in accordance with MIL-STD-1261. The contractor shall have an accepted welding procedure and accepted workmanship samples in accordance with MIL-STD-1261 for each type of weld before any production welding can be accomplished (see 4.8

    37、.5). 3.4.3.1 Welder and welding operator certification. Before assigning any welder to manual welding work, the contractor shall provide the contracting officer with certification that the welder has passed qualification codes for the type of welding operations to be performed and that such qualific

    38、ation is effective as defined by the particular code: a. AWS D1.1, Structural Welding Code, Section 5, qualification. b. ASME Boiler and Pressure Vessel Code, Section 9, Welding and Brazing Qualifications If only flat or horizontal welds are required, the contractor need not ,- qualify welders for “

    39、all position welding“. Subject to approval by the Government, the contractor standard welder qualification may be substituted in lieu of the above codes provided the contractor procedure is, as a mnimum, equlvalent to the above codes. for determining that automatic welding equipment operators are ca

    40、pable of producing quality welds in accordance with the contractor or manufacturer welding procedures (see 4.8.5). The contractor shall be responsible 3.4.3.2 Welding repairs and burning operations. Welding repairs and burning operations of any type or class shall be made only when and to the extent

    41、 specifically authorized by the acquisitioning activity (see 4.8.5 and 6.2). 3.4.4 Lifting attachments. Trailers shall be provided with lifting attachments in accordance with applicable drawings. shall be structurally adequate to lift the trailer when loaded with maximum payload (see table III). MIL

    42、-STD-209 (see 4.8.6). The lifting attachments Lifting slings, with spreader bar, shall conform to 3.4.5 - Tires. In accordance with Drawing 8750023, tube type, 12 ply, 11.00 - 20 tires shall be furnished conforming to class CC, style a of MIL-T-12459. psi (see 4.8.7). When mounted on the trailer, th

    43、e tires shall be inflated to 75 3.4.6 Landing gear. Landing legs shall support the fully loaded trailer and withstand the strains imposed when coupling and uncoupling the trailer from the towing vehicle and raising and lowering the loaded trailer. landing gear shall operate freely when trailer is lo

    44、aded or unloaded and shall operate without physical interference (see 4.8.8). The 6 Licensed by Information Handling Services3.4.7 Tiedown devices. Trailers shall be provided with tiedown devices, in accordance with applicable drawings and of sufficient number and structural strength to be adequate

    45、for transport by rail, sea, and air (see 4.8.9). 3.4.8 Air brake system. Trailer braking system includes air actuated service brakes equipped with fail safe units to provide parking and emergency braking, The air brake system shall be capable of operation throughout all ranges of trailer operating c

    46、onditions. function properly and maintain adjustment within required settings during all trailer operating conditions (see 4.8.10). The brake adjustment system shall 3.4.8.1 Air lines and fittings. Air lines and fittings shall be internally clean prior to and after making connections and shall be fr

    47、ee from leaks. All lines and fittings shall be secured to prevent rubbing on adjacent lines or trailer appendages. Air system leakage shall not allow a pressure drop of more than 34 pound force per square inch (psi) in a 1-hour period, with 100 + 10 psio(shopoair) initially in air supply tanks, and

    48、ambient tempegatureoof 70 + 10 F; or 6 psi drop at 120 - + 10 psi for 2 minutes at 70 + 10 F (see .8.10.1). 3,4.8.2 Brake actuator seals. The brake actuator shall be completely sealed to preclude leakage of lubricants and the entrance of water, saAd, or other foreign matter into the actuator during

    49、normal operation and fording as specified in 3.5.8 (see 4.8.10.2). 3.5 Performance. The trailer shall meet performance requirements of this specification when equipped as specified herein, serviced as specified in applicable lubrication drawing, loaded with M976 or M1033 payload (see 3.5.2 and 3.5.3) and coupled to the towing vehicle (see 4.8.11 through 4.8.11.6). 3.5.1 Environmental conditions. The trailer, when properly serviced and coupled to a suitable towing vehicle, shall operate and transport equipment in ambient air temperatures from minus 50 degrees fahrenhe


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