1、- - ! MIL-T-2b025E 17 = 99999Oh 0393807 b = c - 7sl-a MIL-T-26025E (USAF) R 1988 SUPERSEDING 31 MAY 1988 MIL-T-0026025D (84) MILITARY SPECIFICATION TRACTOR, AIRCRAET TOWING, DIESEL ENGINE DRIVEN (DED), 4 X 4,4 WHEEL STEER, 10,300 POUNDS DRAWBAR PULL, PNEUMATIC RUBBER TIRED This specification is appr
2、oved for use within the Department of the Air Force and is available for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 intended for use as aircraft towing and spotting vehicles for aircraft weighing up to 175,000 pounds and trailers weighing up to 93,000 pounds. ScoD
3、e, This document covers 4 x 4,4 wheel steer, pneumatic tired, diesel engine driven tractors 1.2 Classification, The classification shall be as follows: Tractor, 175,000 lbs Gross Aircraft Weigh t. 2. APPLICABLE DOCUMENTS . 2.1 Government documents. 2.1.1 SDecifications. standards. and handbooks. The
4、 following specifications, standards, and handbooks form a part of this specification to the extent specified herein. Unless otherwise specified, the issues of these documents shall be those listed in the issue of the Department of Defense Index of Specifications and Standards (DODISS) and supplemen
5、t thereto, cited in the solicitation. Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: WR-XC/MMVRS Robins AFB, GA 31098-5090 by using the self-addressed Standardization Document Improvement Propo
6、sal (DD Form 1426) appearing at the end of this document or by letter. AMSC NIA DISTRIBUTION STATEMENT A; Approved for public release; distribution is unlimited. / THIS DOCUMENT CONTAINS 2 9 PAGES. i IFSC 17401 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from
7、 IHS-,-,-MIL-T-Zb025E 17 = 7779706 0173O _ _ MIL-T-26025E (USAF) SPECIFICATIONS FEDERAL W-B- 13 1 ZZ-T-38 1 22-1-550 W-F-800 MILITARY MIL-P-5 14 MIL-T-704 MIL-T-5624 MIL-P-23377 MILC-46168 MIL-E-52649A MIL-C-53039 MIL-T-83 133 MIL-H-83282 MIGC-83286 STANDARDS FEDERAL FED -STD-595 MILITARY MIL-STD-12
8、 MIL-STD- 130 MIGSTD-143 MIL-STD-46 1 MIL-STD-462 MIL-STD-808 MIL-STD-831 MIL-STD-889 MIL-STD-1223 MIL-STD-1472 MIL-STD-1595 MIL-STD-1791 MS51335-2 Battery Storage: Vehicular, Ignition, Lighting and Starting Tire, Pneumatic, Vehicles and Portable Equipment Inner Tube, Pneumatic Tire Fuel Oil, Diesel
9、 Plates, Identification, Instructions and Marking, Blank Treatment and Painting of Material Turbine Fuel, Aviation, Grades JP-4 and JP-5 Primer Coating, Epoxy-Polyamide, Chemical and Solvent Resistant Coating, Aliphatic Polyurethane, Chemical Agent Resistant Engine Cold Starting Aids, Ether Fuel Pri
10、mers Coating, Aliphatic Polyurethane, Single Component, Chemical Agent Re si stan t Turbine Fuel, Aviation, Kerosene Type, Grade 59-8 Hydraulic Fluid, Fire Resistant, Synthetic, Hydrocarbon Base, Aircraft Coating, Urethane Aliphatic Isocyanate, for Aerospace Applications Colors Abbreviations for Use
11、 of Drawings and on Specifications, Standards and Technical Documents Identification Marking of U.S. Military Property Standards and Specifications, Order of Precedence for the Selection of Electromagnetic Emission and Susceptibility Requirements for the Control of Electromagnetic Interference Measu
12、re of Electromagnetic Interference Characteristics Finishes Protective and Codes for Finishing Schemes for Ground and Ground Support Equipment Test Reports, Preparation of Dissimilar Metals Nontactical Wheeled Vehicle Treatment, Painting, Identification Marking and Data Plate Standards Human Enginee
13、ring Design Criteria for Military Systems, Equipment and Facilities Qualification of Aircraft, Missile and Aerospace Fusion Welders Designing for Internal Aerial Delivery in Fixed Wing Aircraft Pintle Assembly, Towing - 18000 # Capacity, Manual Release 2 Provided by IHSNot for ResaleNo reproduction
14、or networking permitted without license from IHS-,-,-L - MIL-T-26025E 17 9999906 0393809 T W I a MIL-T-26025E (USAF) COMMERCIAL ITEM DESCRIPTION A-A- 1108 DRAWINGS 68334230 68B34247 DL 690-1G-109 DL 690-163-209 Extinguisher, Fire Vaporizing Liquid Connector and Pintle Installation, MB-4 Tractor 2.1.
15、2 specification to the extent specified herein. Unless otherwise specified, the issues shall be those in effect on the date of the solicitation. Other Government documents, The following other Government documents form a part of this LAWS AND REGULATIONS 49cFR 393 49CFR 571 Federal Motor Carrier Saf
16、ety Regulations (FMCSR) Federal Motor Vehicle Safety Standards (FMVSS) (The Code of Federal Regulations (CFR) and the Federal Register (FR) are for sale on a subscription basis by the Superintendent of Documents, US Printing Office, Washington DC 20402. When indicated, reprints of certain regulation
17、s may be obtained from the Federal agency responsible for issuance thereof.) (Copies of specifications, standards, drawings and publications required by manufacturers in connection with specific acquisition functions should be obtained from the contracting activity or as directed by the contracting
18、officer.) 2.2 herein. Unless otherwise specified, the issues of the documents which are DOD adopted shall be those listed in the issue of the DODISS specified in the solicitation. Unless otherwise specified, the issues of documents not listed in the DODISS shall be the issue of the nongovernment doc
19、uments which is current on the date of the solicitation. Other Dublications, The following documents form a part of this specification to the extent specified AMERICAN WELDING SOCIETY, INC. (AWS) D1.l Structural Welding Code, Steel (Application for copies should be addressed to the American Welding
20、Society, 2501 NW Seventh Street, Miami FL 33125.) TIRE AND RIM ASSOCIATION, INC. YEARBOOK DEPARTMENT OF AGRICULTURE 5100-JA Spark Arresters for Internal Combustion Engines. (Application for copies should be addressed to Department of Agriculture Forest Service, Equipment Development Center, San Dima
21、s, California, 9 1773.) AMERICAN NATIONAL STANDARDS INSTITUTE Square and hex bolts and screws inch series including hex cap screws and Lag screws (B 18.2.1) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-2b025E 17 lb Oi19310 b I MIL-T-26025E (
22、USAF) SOCIETY OF AUTOMOTIVE ENGINEERS, INC. (SAE) SAE Standards and Recommended Practices I 553 J95 5293 5297 5318 J336a 5360 J366b 5534 5680 J683 5690 5833 5899 5919 J992J3 51082 ARP 1247 51349 Minimum Performance Criteria for Emergency Steering of Wheeled Earth Moving Construction Machines Headlam
23、ps for Industrial Equipment Vehicle Grade Parking Performance Requirements Operator Controls on Industrial Equipment Tracks, Truck Tractors, and Trailers, Air Brake Gladhand Service (Control) and Emergency (Supply) Line Couplers Sound Level for Truck Cab Interior Motor Vehicle Grade Parking Performa
24、nce Test Code Exterior Sound Level for Heavy Trucks and Buses Lubrication Fittings Location and Operation of Instruments and Controls in Motor Truck Cabs Tire Chain Clearance - Truck, Buses and Combinations of Vehicles Certificates of Maximum Horse Power for Motor Trucks and Truck Tractors USA Human
25、 Physical Dimensions Operators Seat Dimensions - Construction and Industrial Equipment Design Sound Level Measurements at the Operator Station for Agricultural and Construction Equipment Brake System Performance Requirements - Truck, Bus and Combination of Vehicles Fuel Economy Measurement Road Test
26、 Procedure General Requirements for Aerospace Ground Support Equipment Motorized and Non-motorized Engine Power Test Code - Spark Ignition and Diesel (Application for copies should be addressed to the Society of Automotive Engineers, 400 Commonwealth Drive, Warrendale PA 15096). 2.3 references cited
27、 herein (except for associated detail specifications, specification sheets or MS standards), the text of this specification shall take precedence, Nothing in this specification, however, shall supersede applicable laws and regulations unless a specific exemption has been obtained. Order of mecedence
28、, In the event of a conflict between the text of this specification and the I 3. REQUIREMENTS. 3.1 .Design 3.1.1 commodities and services not specified herein shall be selected in accordance with MIL-STD-143. 3.1.2 Mateials shall be as specifiedherein. Materials not specifically covered by this spec
29、ification or referenced document shall be suitable in every respect for this type equipment. Except as otherwise specified, wood shll not be used. Selection of mecifications an 3 standards, Specifications and standards, necessary Materials, 3.1.2.1 Materials that are subject to eterioration shallbe
30、protected in such a manner .that shall in no .way prevent compliance with the performance requirements of this specification. Protective coatings that mil cliip, crack or scale with age or extremes of climatic conditions shall not be used. Protective treat ment, Provided by IHSNot for ResaleNo repro
31、duction or networking permitted without license from IHS-,-,-MIL-T-2b025E 37 m 7997706 0373833 8 m MIL-T-26025E (USAF) 3.1.2.2 Dissimilar metals, not be used in intimate contact with each other. Dissimilar metals are defined in MIL-STD-889. 3.1.3 The vehicle shall be constructed so that parts shall
32、not work loose in service, and shall withstand the loads, shocks, vibrations and other conditions incident to operation, shipping, and storage with minimum loss of time for maintenance, repair, and servicing. The design of the vehicle shall ensure safe, efficient, and economical operation. All assem
33、blies, controls, and installed equipment shall be located so there will be no adverse interference with each other or with operations and shall be readily accessible for maintenance, operation, removal, and replacement. The vehicle shall comply with MIL-STD-1472, Federal Safety Regulations 49CFR571
34、and 49CFR393. Unless protected against electrolytic corrosion, dissimilar metals shall Design and Construct ion. I 3.1.3.1 Beliabilitv, Failures (MTBF) of not less than 250 hours demonstrated at an 0.9 confidence level. The vehicle shall be designed for a life expectancy of at least 14 years. The ve
35、hicle, including all components, shall have a Mean-Time-Between- 3.1.3.2 Maintainabilitv, The vehicle shall be designed and constructed to provide the following: a. b. A minimum number of parts consistent with the performance required herein. A minimum amount of time for assembling, disassembling, l
36、ocating trouble sources and maintaining the vehicle. Where practical, components shall be located for rapid inspection and recognition of potential failure. Ease of adjusting, servicing and replacing parts and components. c. d. e. Use of readily available standard tools and equipment for maintenance
37、. Maintenance with a minimum number of tools. f. g. Maximum repair time, excluding time to troubleshoot, of no greater than eight hours. Maximum total downtime to perform all daily scheduled maintenance and servicing tasks of no greater than 15 minutes. The vehicle shall be designed so that one mech
38、anic, using common hand tools, can perform the following maintenance operations within the time specified: Remove, replace and adjust all engine driven belts - 3/4 hour. Remove and replace alternator - U2 hour. Remove and replace all filters, screens and strainers in all hydraulic systems - one hour
39、. Remove and replace engine coolant system hoses - U2 hour. Drain engine lubricating oil, remove and replace oil filter element (s) and refill crankcase - one hour. Remove and replace fuel filter element (s) - il2 hour. Disconnect battery cables, remove and replace batteries and reconnect battery ca
40、bles - l/2 hour. Drain torque converter oil and transmission oil, remove and replace all filter elements and strainers and refill converter and transmission - one hour. 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-. flIL-T-26025E 17 H 7477406 01
41、73812 T W - MIL-T-26025E (USAF) (9) (10) Remove and replace starter - one hour. Remove or install the engineltransmission or engindpower divider package, two mechanics - four hours. 3.1.3.3 Foohroofness, asymmetric mounting system shall be provided, where practical, to ensure proper mounting of the
42、item. Where improper installation of an item could cause a malfunction, an 3.1.3.4 Fastening devices, designed, manufactured and installed with adequate means of preventing loss of torque or adjustment. Cotter pins, lock washers or nylon patches shall not be used for this purpose, except for attachm
43、ent of trim items on the commercial chassis. Tapped aluminum threads shall have a minimum thread engagement of at least two times the nominal fastener diameter. All screws, bolts, nuts, pins and other fastening devices shall be properly 3.1.3.5 Servicing. Drovisions, be so located that they are read
44、ily accessible and do not require special tools for proper servicing. 3.1.3.6 Lubrication, lubrication fittings in accordance with SAE 5534. Where the use of high lubrication pressures may damage grease seals, a pressure relief device shall be provided. Extended fittings shall be provided to lubrica
45、te parts or assemblies which are not readily accessible for direct lubrication or which are likely to be overlooked because of inaccessibility. Drains, grease fittings, lines and check points for all components shall All parts normally requiring grease for lubrication shall be provided with 3.1.3.7
46、Hvdraulic fluid, Hydraulic fluid shall be in accordance with MIL-H-83282. 3.1.3.8 All space in which work is performed during operation, service and maintenance of the vehicle shall be free of hazardous protrusions, sharp edges or other features which may cause injury to personnel. All rotating and
47、reciprocating parts and all parts subject to high operational temperatures or subject to being electrically energized, that are of such nature or so located as to be hazardous to personnel, shall be guarded or insulated to the extent necessary to eliminate the hazard. 3.1.3.9 attached so they cannot
48、 become separated from the vehicle. ComDonent Drotection, Foreign ob! ect da mage, All loose metal parts, such as pins and valve caps, shall be securely 3.1.3.10 Bonding, sparks. 3.1.4 Fnvironmental conditions, under the following environmental conditions: Metal parts shall be specifically bonded to
49、gether to minimize the possibility of The vehicle shall be capable of satisfactory storage and operation a. Full-time exposure to temperatures ranging from -40“ F to +125 O F for Type “A“ winterization and from -10“ F to +125“ F for Type “C“ winterization (see 6.2). b. c. Full-time exposure to relative humidities up to 100 percent. Part-time (five percent of-the time) exposure to rain; droplets of size 2.0 to 4.5 mm falling at a rate of 5.2 inches per hour. d. P
