1、 MIL-B-52203D 38 W 779770b 0218600 I MIL-S-52203D 12 November 194 SUPERSEDING MIL-B-52203C 1 April 1969 MILITARY SPECIFICATION This specification is approved for use by aU Departments and Agencies of the Department, of Defense. 1. SCOPE 1.1 This specification covers a military standard boom with ext
2、ensions and attachments for a 20-ton rough terrain crane, a =-ton truck crane and a 12-1/2-ton crawler crane. 2. APPLICABLE Do-S 2.1 The following documents of the issue in effect on date of invitation for bids or request for proposal form a part of this specification to the extent specified herein:
3、 SPECIFICATIONS Military MT-704 MIL-C-3580 - Treatment and Painting of Materiel. - Cranes and Crane-Shovels, Truck, Crawler, and Wheel Mounted, Nl Revolving, and Their Attachments, Packaging of. - Grease, Automotive and Artillery. - Bom Jib, Crane, 15-Foot-Long, for 3/40 Cubic-Yard (12-1/2-Ton Crawl
4、er Mounted, X)-Ton Weel Mounted) Cranes. MIL-G-10924 MJIrB-52207 Military MIESTD-130 - Identification Marking of US Military Property. FSC 3815 7HIS DOCUIEHT CBITAIAS ,A PASES. o Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-B-5i203D 38 = 77777
5、06 0238603 3 M DRAWINGS ME - - 132176260 - Boom, Crane: 20-Ton Truck-Mounted; 12-1/2- Ton Crawler-Mounted. (Copies of specifications, standards , and drawings required by suppliers in connection with specific procuremeht functions should be obtained from the procuring activity or as directed by the
6、contracting officer.) 2.2 Other publications. The followhg documents form a part of this specification to the extent specified herein. Unless otherwise indicated, the issue in effect on date of invitation for bids or request for proposal shall apply. I 4 AMERICAN cocm OF MECHANICAL ENGINEERS (ASME)
7、Boiler and Pressure Vessel Code, Welding Qualifications, Section Ix. (Application for copies should be addressed to the American Society of Mechanical Engineers, 345 East 47th Street, New York, NY lOOl7.) AMERICAN WELDING SOCIETY, INC. (AWS) D1.1 - Structural Welding Code, Section 5, Qualification.
8、(Application for copies should be addressed to the American Welding Society, nc . , 2501 NW Seventh Street , Miami, FL 33125.) 3.1 Description. and one outer boom section with pendant cables. ance with Top Assembly 1.32176260 covering a boom for a crane capable of lifting 40,OOO pounds. length of 90
9、 feet shall be attainable by inserting six 10-foot extensions. A 15-foot jib boom conforming to MIEB-52207 may be used when the boom is assembled to 80 feet or less. bocan when required. The basic boom shall consist of one inner boom section The boom shall be in accord- The basic boom shall be 30 fe
10、et in length; a maximum A fairlead may be used with the assembled 2 . . . . . Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-B- 5 2x) 31, 3.1.1 Drawings. end product drawings. tolerances is permissible without prior approval of the contracting o
11、fficer. Where tolerances could cumulatively result in incorrect fits, the supplier shall provide tolerances within those prescribed on the drawings to insure correct fit, assembly, and operation of the booms. drawings, layouts, flow sheets , processing procedures, etc .) prepared by the supplier or
12、obtained from a vendor to support fabrication and manufacture of the production item shall be made available, upon request, for inspection by the contracting officer or his designated representative. The drawings forming a part of this specification are No deviation from the prescribed dimensions or
13、 Any data (e.g. shop 3.2 First article (preproduction modell. The supplier shall furnish a boom as specified (see 6.2) for examination and testing within the time frame specified (see 6.2) to prove prior to starting production that his production methods will produce booms that ccnnply with the requ
14、irements of this specifi- cation. be subject to surveillance and approval by the Government (see 6.3). Examination and tests shall be as specified in Section 4 and shall 3.3 Material. specified herein. 3.4 Boom extensions. When specified (see 6.2) bom extensions conforming Material shall be as speci
15、fied in TA13217E6260 and as to Drawing 13217E6263 shall be furnished. cables conforming to Drawing 13a736266 shaU be furnished with each boa extens ion . One pair of matched pendant 3.5 Fairlea. When specified (see 6.2) fairleads conforkng to Drawing 13=7E6% 1 shall be furhished. 3.6 Delivery lubric
16、ation service. When delivered, aXL components requiring lubrication shall be lubricated. Grease lubrication shall be with greases conforming to MIL-G-11924. to indicate that it has been lubricated. Each boom shall be tagged in 8 conspicuous place 3.7 Identification marking. The inner and outer boom
17、sections, fairlead, and bom extensions each shall be identified in accordance with MIcL-STD-l3O on plates conforming to Drawing 132173628. 3.8 Treatment and painting. The portions of the boom, and its components and parts normally painted shall be cleaned, treated, and painted in accord- ance with M
18、IL-T-704, !J!y-pe A, color as specified (see 6.2). property in the quantities indicated will be loaned by the Government (see 6.4): 3.9 Government-loaned property. When specified (see 6.2), the foUaWing 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,
19、-,-b MIL-B-52203D 38 9999906 0218603 7 Item Qty for each bom Identification NO Description 1 Boom, jib, crane, 15-foot- NSN 3815-00-542-4839 1 2 Fairlead, rouer and sheave. NSN 38156-554-0126 1 long, for 3/4-cubic-yard crane-shovel. 3 oam extension, middle, crane. NSN 381540-540-4756 as required. .3
20、,lO Worhnanship. The booan shall be free fram defects such as incomplete welds, rust, cracks, and other defects that could impair the operation or serviceability of the bom. 3.lO.l Steel fabrication. Steel used in the fabrication of the boom shall provide original surface finish and shall be free fr
21、om kinks and sharp bends. Straightening of material shall. be done by methods that Will. not cause injury to the metal. either before or after fabrication. neatly and accurately. and burrs shall be removed. or sawing. sufficiently to remove ash and cooling checks. to avoid overheating, and heated me
22、tal shall be allowed to cool slowly. bends of a major character shall be made with metal dies or fixtures in order t0 insure uniformity of size and shape. Straightening of boom chord angles shall not be permitted Shearing and chipping shall be done Corners shall be square and true, and all sharp edg
23、es Burned surfaces of flame-cut material. shall be ground or machined Flame cutting may be employed instead of shearing Precautions shall be taken AU 3.10.2 Bolted connections. Boltholes shall be accurately formed or drilled and burrs and sharp edges shalL be removed. screws shall be correctly torqu
24、ed. ful contact with each other. All bolts, nuts, and Adjoining surfaces shall be flat and in 3.10.3 Welders and weldink. 3.10.3.1 Welders. Before assigning any welder to manual welding work covered by this specification, the supplier shall provide the contracting officer with certification that the
25、 welder has passed qualification tests as prescribed by either of the following listed codes for the type of welding operations to be performed and that such qualification is effective as defined by the particular code: Provided by IHSNot for ResaleNo reproduction or networking permitted without lic
26、ense from IHS-,-,-MIL-B-52203D 38 7749406 0218609 4 = J AWS D1.1, Structural Welding Code, Section 5, Qualification. Welding Qualifications of the ASME, Secti0.n M. Suppliers who only make horizontal welds need not qualify welders for U position welding.“ Subject to approval by the Government, suppl
27、iers standard welder qualification may be substituted in lieu of the above codes provided that the suppliers procedure is equivalent to the above codes. The supplier sha31 be responsible for determining that autanatic welder equipment operators are capable of producing quality welds in accordance wi
28、th AWS and ASME codes. 3.10.3.2 Welding. scale, paint, grease, and other foreign matter. weld metaJ. are required, each layer shall be thoroughly cleaned before de- positing another layer. cracks and other imperfections that may reduce the effectiveness of the part or assembly. All weldments shall b
29、e free from slag, flux, weld spatter, and other impurities. ticable. type joints having members of equal thickness shaU be alined within 10 per- cent of the thickness of the members involved. Where different steels are welded to each other, filler metal having strength of the lower strength steel sh
30、all be used. perties are used, the deposited filler meta shall develop the fll design strength of the particular weld joint or weldment. The surfaces of parts to be welded shall be free fran When multiple layers of All welded parts and assemblies shall be free from . Work shalL be positioned for fla
31、t welding whenever prac- Butt No undercuts or overlays will bepemitted on any weldment. When the same steels, or steels having similar pro- 3.10.3.3 Mechanical properties. Mechanical properties of 8J.l welds shall be such that welds will transmit stress without failure or permanent deforma- tion whe
32、n subjected to any test specified in this specification. the limitations specified on drawings. tapping. 3.10.4 Machine work. Tolerances and gages for metal fits shall conform to All holes shall be countersunk before 4. QUALITY ASSURANCE PROVISIONS 4.3. Responsibility for inspection. Unless otherwis
33、e specified in the contract or purchase order, the supplier is responsible for the performance of all inspection requirements as specified herein. specified in the contract or order, the strpplier may use his own or any other facilities suitable for the performance of the inspection requirements spe
34、cified herein, unless disapproved by the Government. serves the right to perform any of the inspections set forth in the specifi- cation where such inspections are deemed necessary to assure supplies and services conform to prescribed requirements. Except as otherwise The Government re- 5 Provided b
35、y IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-B-52203D 38 7779906 0218605 O 9 4.1.1 Ccairponent and material inspection. The supplier is responsible for insuring that components and materials used are manufactured, examined, and tested in accordance wit
36、h referenced specifications, standards, and drawings, as applicable. 4.1.2 Disassembly inspection. Failure of any examination or test by the preproduction model shal be cause for disascembly,in the presence of a Government representative, of the preproduction model to the extent necessary to determi
37、ne the cause of the failure, examined in detail for compliance with this specification and referenced drawings in regard to materials, dimensions, toleraces, and workmanship. Parts not canplying with such requirements shall be rejected and shall be cause for rejection of the preproduction model. par
38、ts and retesting shall be the responsibility of the supplier. Each disassembled part shall be Reassembly with replacement 4.1.3 Parts and components. Parts and components detailed on the drawings sha31 be inspected in accordance with Supplementary Quality Assurance Pro- visions (SQAP) shown on the d
39、rawings. The drawings specify the characteris- tics requiring SQ,AP inspection, the sampling plan, and the basis for accept- ance and rejection (see 6.5). 4.2 Classification of inspections. Inspections shall be classified as fonows : (a) Preproduction inspection (see 4.3). (b) (c) Quality conformanc
40、e inspection (see 4.4). Inspection of preparation for delivery (see 4.6). 4.3 Preproduction inspection. 4.3.1 Examination. The preproduction inner and outer boom sections, fairlead, and boom extension shall be examined as specified in 4.5.1. Presence of one or more defects sha31 be cause for rejecti
41、on. 4.3.2 - Test. The preproduction inner and outer boom sections, fairlead, and boom extension shall be tested as specified in 4.5.2. test shall be cause for performing the inspection specified in b01.2. Failure of any 4.4 Quality conformance inspection. 4.4.1 Examination. Each inner and outer boom
42、 section, fairlead, pendant cable, and bom extension shall be examined as specified in 4.5.1. of one or more defects shall be cause for rejection. Presence J 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-B-52203D 38 W 9979906 0238b06 2 4.4.2
43、Tests. Each fairlead and pendant cable shall be tested as specified - in 4.5.2.5 and 4.5.2.6. Failure of the test Shan be cause for rejection. 4.5 Inspection procedure. The inner and outer boom sections, fairlead, and boom extensions shaU be inspected as applicable. 4.5.1 Examination. The boom shall
44、 be examined for the following defects: 101 . 102. 103 . 104 . 105. 106. 107 . 108 . io9 . 110. 111. u2. u3 4 ii4. u5 ii6 . 117 . ii8 , u9 120. la. 122 . Size of holes and hole pattern in each pad of basic boom and extension section not as specified. Distances between diagonally opposite pads of eac
45、h connection point of the basic boom and extension sections not within drawing tolerance . Distance between adjacent pads not as specified. All pads at each end of the basic boom and extension sections not in same plane within drawing tolerance. Connection bushing bore of inner boom section not as s
46、pecified. Sheave pin bushing bore of fairlead not as specified. Sheave pin bushing bore of outerboom section not as specified. Size or location of holes in jib boom anchor plates on outer boom section not as specified. Other dimensions not as specified, Assembly not complete or not correct. Parts or
47、 components missing. Material not as specified. Drill hole, spotface, tap hole, and threaded bushing for lubricating fitting in boom foot hub not as specified on Drawing 1321.736262. Capscrews and lockwashers not as specified for fairlead mounting pad. Pendant cables not furnished in matched pairs.
48、Fairlead not constructed or alined as specified, Wire rope not as specified. Lubrication fitting missing. Identification or other marking missing. Treatment and painting not as specified. Welding not as specified. Workmanship not as specified. 4.5.2 Tests. 4.5.2.1 Assembly. Assemble a 6o-fmt boom us
49、ing a basic boom, three - boom extensions, a fairlead, and a 15-fOOt jib boom without the use of 7 o Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-L NIL-B-52203D 38 = 7777706 0218b07 4 jacks or clamps, and without modification of any component. assemble the boom with extiensiuns or attachments, or evidence of unusual force required to dine components sha
