1、MIL-T-26225B m 9999906 1997866 232 D INCH-POUND MIL-T-26225B (USAF) 1 MARCH 1995 SUPERSEDING MIL-T-26225A(USAF) 3 September 1959 MILITARY SPECIFICATION TRAILER, LIFT, AIRCRAFT - MISSILE ENGINE ETU-8/E This specification is approved for use by the Department of the Air Force and is available for use
2、by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification covers an aircraft and missile engine lift trailer, designated ETU-8/E. * 2. APPLICABLE DOCUMENTS * 2.1 Government documents. * 2.1.1 Specification and standards. The following specifications and sta
3、ndards form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those listed in the issue of the Department of Defense Index of Specifications and Standards (DODISS) and supplement thereto-, cited in the solicitation (6.2). SPECIFICAT
4、IONS MI LI TARY MIL-P-116 Preservation, Method of MIL-T-704 Treatment and Painting of Materiel MIL-H-5606 Hydraulic Fluid, Petroleum Base, Aircraft, Missile, and Ordinance and Storage of MIL-V-62038 Vehicles, Wheeled: Preparation for Shipment STANDARDS MILITARY Beneficial comments (recommendations,
5、additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: The Resources and Logistics Services Division, SA-ALC/TILDD, Bldg. 171, Post C-12, 485 Quentin Roosevelt Rd., Kelly AFB, TX 78241-6425 by using the Standardization Document Improvement
6、 Proposal (DD Form 1426) appearing at the end of this document or by letter. AMSC N/A FSC 1730 DISTRIBUTION STATEMENT A. Approved for public release, distribution is unlimited. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-STD-129 Marking for S
7、hipment and Storage (Part 1 of 4 MIL-STD-130 Identification Marking of U.S. Military Property MIL-STD-1186 Cushioning, Anchoring, Bracing, Blocking and Waterproofing, with Appropriate Test Methods Parts) * (Unless otherwise indicted, copies of the federal and military specifications and standards ar
8、e available from the Defense Printing Service, Detachment Office, 700 Robbins Ave., Bldg 4D, Philadelphia, PA 19111-5094.) * 2.1.2 Other Government documents, drawings and publications. The following other Government documents, drawings and publications form a part of this document to the extent spe
9、cified herein. Unless otherwise specified, the issues are those cited in the solicitation. DRAWINGS AIR LOGISTICS CORPORATION 100628T Trailer Assembly Model 4000A Heavy Duty Positioning * (Copies of specifications, standards, drawings, publications and other Government documents required by contract
10、ors in connection with specified acquisition functions should be obtained from the contracting activity or as directed by the contracting activity.) * 2.2 Non-Government publications. The following documents form a part of this document to the extent specified herein. Unless otherwise specified, the
11、 issues of the documents which are DoD adopted are those listed in the issues of the DODISS cited in the solicitation. Unless otherwise specified, the issues of documents not listed in the DODISS are the issues of the documents cited in the solicitation (see 6.2). AMERICAN SOCIETY FOR TESTING AND MA
12、TERIAL (ASTM) ASTM D-3951 Standard Practice for Packaging, Commercial * (Application for copies of ASTM publications should be addressed to the American Society for Testing and Materials, 1916 Race Street, Philadelphia, PA 19103. ) AMERICAN WELDING SOCIETY (AWS) AWS Dl. 1 Structural Welding Code Ste
13、el Twelfth Edition * (Applications for copies of AWS publications should be addressed to the American Welding Society, 2501 NW 7th Street, P.O. Box 351040, Miami, FL 33135-3030.) 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-26225B (USAF) *
14、 (Non-Government standards and other publications are normally available from the organizations that prepare or distribute the documents. These documents also may be available in or through libraries or other informational services. ) * 2.3 Order of precedence. In the event of a conflict between the
15、 text of this document and the references cited herein, (except for related associated detail specifications, specifications sheets, or MS standards), the text of this document takes precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specified exemptio
16、n has been obtained. 3. REQUIREMENTS 3.1 First article. When specified in the contract or purchase order, a sample shall be subjected to first article inspection (see 4.3 and 6.3). 3.2 Desian and construction 3.2.1 Assembly drawing. The requirements of drawing 100628A apply as requirements of this s
17、pecification with the exceptions and additions specified herein. When the drawing and this specification conflict, this specification shall govern (see 6.2). 3.2.2 Commercial items. Components proposed for use in lieu of commercial parts specified on the drawings shall be functionally and dimensiona
18、lly interchangeable with the parts specified and are subject to the approval of the procuring activity. 3.2.3 Welding. Welding shall be accomplished by welders certified in accordance with Class A of AWS D1.l. 3.3 Performance 3.3.1 Static load. The trailer shall withstand a static load of 16,000 pou
19、nds applied as specified in 4.6.2 herein. 3.3.2 Tilt, roll, yaw, and transverse operations. Under an 8,000 pound load, the adjusting mechanism for tilt, roll, yaw, and transverse operations shall be operable by hand. The transverse operations shall require-not more than 26 pounds load on the handle
20、(see 4.6.3). Under a 16,000 pound load, the adjusting mechanism shall be operable by a standard .5 inch drive wrench and shall require not more than 600 pound-inches torque with the load in any position on the rails (see 4.6.3.1). 3.3.3 Side load. While under a static load of 8,000 pounds, the trail
21、er shall withstand a side load of 1,200 pounds (see 4.6.4). 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-26225B (USAF) 3.3.4 Endurance. When subjected to a 5 cycle, 8,000 pound endurance test (a cycle consists of raising the trailer from c
22、ollapsed to fully extended heights), the hydraulic systems shall require no more than 75 pounds force on the pump handle(s) to raise the 8,000 pounds at the end of the test, nor shall the cylinder settling rate exceed .O625 inch per hour (see 4.6.5). 3.4 Hydraulic servicing. The hydraulic system sha
23、ll be bled of air and filled with hydraulic fluid conforming to MIL-H-5606. 3.5 Finish. The trailer shall be finished in accordance with type A of MIL-T-704. 3.6 Identification of product. Equipment, assemblies, and parts shall be marked for identification in accordance with MIL-STD-130. 3.7 Workman
24、ship. The trailer, including all parts and accessories, shall meet all requirements of this specification. Particular attention shall be given to neatness and thoroughness of marking of parts and assemblies; welding and brazing, painting, riveting, machine screw assemblies; and freedom of parts from
25、 burrs and sharp edges. 3.7.1 Riveting. Riveting operations shall be performed to ensure that the rivets are tight and satisfactorily headed. 3.7.2 Cleaning. The trailer shall be thoroughly cleaned of loose, spattered or excessive weld scale and flux, rust and metal chips, oil, grease, oxides, and o
26、ther foreign matter after assembly. Burrs and sharp edges, as well as resin finish that may crumble or crack shall be removed. 3.7.2.1 Multiple-pass welds. When a weld is built up by two or more beads or passes, proceeding beads shall be cleaned free of scale and flux by chipping or scraping and bru
27、shing. * 4. QUALITY ASSURANCE PROVISIONS * 4.1 Responsibility for inspection. Unless otherwise specified in the contract or purchase order, the contractor is responsible for the performance of all inspection requirements (examinations and tests) as specified herein. Except as otherwise specified in
28、the contract or purchase order, the contractor may use his own or any other facilities suitable for the performance of the inspection requirements specified herein, unless disapproved by the Government. The Government reserves the right to perform any of the inspections set forth in this specificati
29、on where such inspections are deemed necessary to ensure supplies and services conform to prescribed requirements. * 4.1.1 Responsibility for compliance. All items shall meet all require- ments of sections 3 and 5. The inspection set forth in this specification shall become a part of the contractors
30、 overall inspection system or quality program. The absence of any inspection requirements in the specification shall not relieve the contractor of the responsibility of ensuring that all 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-26225B
31、(USAF) 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 defe
32、ctive material, either indicated or actual, nor does it commit the Government to accept defective material. 4.2 Classification of inspections. The inspection requirements specified herein are classified as follows: a. First article inspection (see 4.3) b. Quality conformance inspection (see 4.4) 4.3
33、 First article inspection. First article inspection shall be performed on one trailer representative of the final production item (see 3.1 and 6.3). 4.3.1 First article test sample. The first article test sample shall consist of one trailer representative of the production equipment. It shall be tes
34、ted at a laboratory designated by the contractors plant under the supervision of the procuring activity. 4.3.2 First article tests. The first article tests shall consist of all tests as specified in paragraph 4.6. 4.4 Quality conformance inspection. Quality conformance inspection shall consist of th
35、e individual tests as specified in paragraph 4.6. 4.5 Packaging inspection. The preservation, packaging, packing, and marking of the equipment shall be subjected to inspection and test to determine compliance with the requirements of section 5 of this specification. The contractor shall provide the
36、necessary facilities and supplies for inspections and tests made prior to final acceptance. 4.6 Test methods. 4.6.1 Examination of product. The trailer shall be visually inspected to determine compliance with the requirements specified herein with respect to material, workmanship, applicable drawing
37、s, preparation of trailers and application of protective finishes and markings. 4.6.2 Static load tests. The trailer shall be subjected to a static load of 16,000 pounds. The center of gravity of the load shall be 18 inches above the center of the parallel rails and applied to two points on each rai
38、l which are 60 +/-2 inches apart. The load shall be raised to maximum height with spacers and lowered to the low position while loaded. The lifts provided on the wheels shall also be subjected to this static load and operated through their entire range. No damage shall result from the static load. T
39、he lift cylinders shall show no leaks around their seals and the hydraulic system shall be capable of handling these entire loads. 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-26225B m 9999906 1997871 bTT m MIL-T-26225B (USAF) * 4.6.3 Tilt
40、, roll, yaw and transverse tests (8,000 lb.). The tilt, roll, yaw, and transverse mechanism shall be operated through their entire ranges and shall be tested under an 8,000 pound-load. The adjusting mechanism shall be operated by hand without the use of tools or auxiliary support mediums. The winch
41、drive shall be demonstrated by rolling this from each end of the rails. The maximum load on the handle that is required to perform transverse operations shall not exceed 26 pounds. * 4.6.3.1 Tilt, roll, yaw and transverse tests (16,0001b.). The tilt, roll, yaw and transverse mechanisms shall be oper
42、ated through their entire ranges and shall be tested under a 16,000 pound load. The winch drive shall be demonstrated by rolling this load from each end of the rails. The adjusting mechanism shall be operable by a standard .5 inch drive wrench and shall require not more than 600 pound-inches or torq
43、ue with the load in any position on the rails. 4.6.4 Side load test. The trailer shall be raised to its maximum height. The trailer shall be subject to a static load of 8,000 pounds. A side load of 1,200 pounds shall be applied at the side of the rails. The trailer shall not show permanent deformati
44、on, tip, or overturn when the 1,200 pound side load is applied. The trailer shall not be tied down during this test. 4.6.5 Endurance test. An endurance test shall be conducted on the hydraulic system of the trailer. The test shall consist of 5 cycles of raising 8,000 pounds. One cycle shall consist
45、of raising the trailer from collapsed height to the fully extended height and return to the collapsed position. At the end of the endurance test, the force required at the end of the pump handle(s) to raise the 8,000 pound shall not exceed 75 pounds each. 4.6.6 Settling test. After the endurance tes
46、t, the cylinder settling rate shall not exceed .O625 inch per hour. The settling rate shall be measured at 10, 50, and 90 percent of the height adjustment. 5. PACKAGING * 5.1 Preservation. Preservation shall be level A, C or Commercial as specified (see 6.2). * 5.1.1 Level A. The trailer shall be pr
47、eserved and packaged in accordance with MIL-V-62038. * 5.1.2 Level C. The trailer shall be preserved and packaged in such a manner as to provide protection from deterioration and damage during shipment to the initial receiving activity in accordance with MIL-V-62038. * 5.1.3 Commercial. The trailer
48、shall be preserved in accordance with ASTM-D-3951. * 5.2 Packing. The trailer, packaged in accordance with 5.1, shall be packed level A, B, C or Comercial as specified (see 6.2). 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-26225B (USAF) *
49、 5.2.1 Level A. The trailer shall be packed in accordance with the requirements of MIL-V-62038 for level A. * 5.2.2 Level B. The trailer shall be shipped boxed or unboxed mobile in accordance with the requirements for level B in MIL-V-62038. * 5.2.3 Level C. The trailer shall be shipped unboxed mobile in accordance with MIL-V-62038. Items which require overpacking for acceptance by the carrier shall be packed in domestic grade containers in a manner that will ensure s
