1、- % zt MIL-D-45394D 23 9999906 0494577 - ta * - Tp I II o .i Nanmclature Single axle 9 Single axle 11 Single axle 13 1 Tandem axle 20 i Tandem axle 25 i dl MILITARY CPECIFICAION I I MIL-D-45394D 04 Dwber 199 1 SUPERSEDING MIL-D-45394C 28 May 1984 DOLLIES, TRAILER CONVERTER: 9 TO 35 TONS PAYLOAD, COM
2、MERCIAL This specification is approved for use by all Departments and Agencies of the Department of Defense. a 1. SCOPE 1.1 Xcnw. “hi3 specification covers trailer converter dollies for use in converting semitrailers to full trailers. specification are commercial items which are warranted by the man
3、ufacturer as specified in acquisition documents. Vehicles procured under this The dolly shall be one of the types and sizes shown . 1-2 Cllassiatian in table I, as specified (see 6.2). Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving
4、 this document should be addressed to: US Army Tank-Automotive Command, ATTN: AMSTA-UED, Warren, MI 48397-5000, by using the self-addressed Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. AMSC N/A I PSC-2330 1 - t. unlimited. Approved
5、for public release; diatributian ia Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- .= * MIL-D-45374D 23 7777906 OY7457 T El: MIL-D-45394D 1.2.1 Size. The size of the dolly shall be determined by its total rated payload capacity as specified in tabl
6、e II. TABLE II. S.he. I L I Payload capacity Payload capacity i -. I sda“- Ltqllgz_ 9: 9 l8,OOO 11 I il 22,000 13 13 26,000 20 20 40,000 25 25 50,000 35-35-70.-* 2. APPLICABLE WCUMENTS d 2.1.1 eneral design. 3-2.1 Pederal-Vehinle Safstv Standards . The vehicle shall comply with all Federal Motor Veh
7、icle Safety Standards applicable to the type of dolly furnished and in effect on the date of manufacture. - ?(: 3.2-2 IlisalmlLar metab dolly shall be insulated from one another to prevent galvanic or electrolytic action. All dissimilar metals used throughout the I a. 3.2.3 Ratings. Dolly ratings sh
8、all be the manufacturere published ratings. Component and vehicular ratings shall not be raised to meet the requirements of this specification. available, verification of ratings Bhall be available to the appropriate engineering office of the procuring activity. When published ratings are not . * 3.
9、2.4 BccessduUiy shall permit access for routine servicing and shall permit access for replacement and adjustment of component parts and accesuories with minimal disturbance of other components and systems. The design of the dolly and optional equipment *.a la. Asbestos materials shall not be used in
10、 any * 3.2.5 mbited materia form in any part of the vehicle. No item, part or aasembly shall contain radioactive materials in which the specific activity is greater than 0.002 microcurie per gram or activity per item equals or exceeds 0.01. microcuries. 3.2.6 . The curb weight of the fully equipped
11、dolly shall te the minimum practicable for the service intended. 3-2.7 w. payload specified in table II, with the payload evenly distributed over the area of the fifth wheel. towing weight equal to twice the payload specified in table II (half the gross towing weight on the dolly, half the gross tow
12、ing weight on the semitrailer axle(s). The dolly shall be capable of tramporting the rated The dolly shall be capable of pulling a gross 3.3 Perfomnance. Dolly performance requirements as specified in 3.3.1 through 3.3.4 shall be met by the dolly when fully equipped; completely serviced; coupled to
13、a semitrailer that imposes the rated payload on the dolly fifth wheel and the gross towing weight on the drawbar; and towed by a 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-D-45394D 23 9999906 0494583 3 M: - MIL-D-45394D towing vehicle over
14、 improved and unimproved hard uneven terrain. shall show no evidence of failure or malfunctionof the dolly, dolly The dolly components, attachments, and accessories. . When transporting the rated * 3.3.1 ab- payload (see 1.2.1), while being towed over dry, level, smooth, improved, and prepared hard-
15、surfaced roads at sustained speeds to 55 miles per hour (mph), and over dry, unimproved and gravel roads at speeds up to 20 mph, the semitrailer and dolly shall follow the towing vehicle without exceeding the tracking deviations as specified in Federal Motor Carrier Safety Regulation 393.70(a). When
16、 specified (see 6-22), a cambered axle shall be furnished to improve trailing and tracking performance. . 3.3.2 Tilrninp ab- The dolly shall be capable.of moving through an angle of not less than 55 degrees in relation to the coupled towing vehicle without cramping or damage to the dolly, the towing
17、 vehicle, and the coupled semitrailer. the dolly and the longitudinal axis of the towing vehicle at the lunette. The dolly shall be capable of assuming an angle of 90 degrees to the coupled semitrailer without damage to the dolly and semitrailer. Turning ability shall be demonstrated when the dolly
18、is coupled to a 96 inch wide toving vehicle with a pintle 5 inches forward at the rear of the towing vehicle and to a semitrailer having the kingpin located 36 inches from the front of the semitrailer, a width of 96 inches, and square corners. When the aemitrailer used in demonstration is furnished
19、without square corners, calculations shall be furnished. .I The angle shall be measured between the longitudinal axis of 3.3.3 flu.spe in use shall be provided. air hose lines shall be of sufficient extended length to connect the dolly to a towing vehicle with the towing vehicle gladhands located at
20、 the most extreme location condition allowed by SAIT 5849- gladhands shall be provided with spring-loaded cover assemblies. Two of the Spring The other two The dolly-to-towing vehicle 3.5.5 Lrst Dro-le iasgection - The first production vehicle of each type (see 1.2) produced under the contract shall
21、 be inspected by the contractor at his plant under the direction and in the presence of Government representatives. The purpose of the inspection shall be to determine vehicle conformance to the contract. shall not constitute a waiver by the Government of its rights under the provisions of the contr
22、act. Acceptance of the first production vehicle 4-3.1 &i&t and Davlpad cagac&y . The first praduction vehicle of each The contractor shall furnish type shall be weighed to determine curb weight. certification that the dolly convertor will accept the imposed loads on the kingpin, dolly frame, suspens
23、ion, axle(s) and tires and on the drawbar in accordance with contract requirements. * 4.3.2 Road test. To determine conformance to 3.3 through 3.4, the first production dolly of each type, with rated payload, shall be road tested. The dolly coupled to a semitrailer and with the drawbar attached to a
24、 tawing vehicle shall be driven not less than 100 miles under the conditions specified in 3.3. At least 20 percent of the distance shall be over dry unimproved and gravel roads at speeds up to 20 mph. The dolly in conjunction 14 Provided by IHSNot for ResaleNo reproduction or networking permitted wi
25、thout license from IHS-,-,-MIL-D-45394D 23 9999906 0494593 2 -. “ MIL-D-45394D with the semitrailer and the towing vehicle shali be subjected to not less than three sudden stops at a speed not less than 20 mph on a substantially level, dry, smooth surface, free of loose material. The vehicle combina
26、tion shall be observed for the specified stopping distance. During the turning ability operation, the dolly shall be observed for moving through an angle of not less than 55 degrees in relation to the coupled towing vehicle without cramping or damage to the dolly, towing vehicle and coupled semitrai
27、ler. The vehicle combination shall be observed for damage to the dolly and semitrailer vhen assuming an angle of 90 degrees to the coupled semitrailer. During the towing speed and trailing ability operation, the semitrailer shall be observed for conformance to the specified tracking deviations. comp
28、letion of the road test, all equipment, components and accessories shall be examined for damage and the dolly shall be examined for leakage (air and lubricant). Upon 4.3.3 . An electrical test shall be conducted on the first production dolly to determine that all lights are functioning. addition, wh
29、en an interconnected 24-volt system is furnished, the circuits of the 12-contact receptacle shall be energized with not less than 24 volts dc regulated voltage for a time sufficient to stabilize the temperature of the resistor assembly for not less than 30 minutes in an ambient temperature of not le
30、ss than 77oF. After the test, the resistor assembly, including resistors, wiring and adjacent components shall be examined for evidence of overheating, deterioration or damage. In 4.3-4 . Upon acceptance of the first production 0 vehicle of -al1 remain at the manufacturing facility as a production s
31、ample, and shall be the last vehicle(s) shipped on the contract. The contractor shall maintain the vehicle(s) in a serviceable condition for the duration of the contract. A: 4.3.5 Pailure. Failure of the first production vehicle(s) to meet requirements of the contract shall be cause for the Governme
32、nt to refuse acceptance of all vehicles under contract until the corrective action has been taken. 4.4 -on ve- - Each production dolly shall be subjected to dimensional inspection specified in section 3. inspection system, as a minimum, shall assure that the vehicle conforms to the dimensional and p
33、erformance requirements and the vehicle is capable of meeting the requirements specified herein. For each vehicle under contract, the contractor shall make available to the Government, at the point of final acceptance, recarda acceptable to the Goverment indicating that the servicing and adjusting r
34、equired by 3.8 have been accomplished. The contractors 5. PACKAGING 5.1 Vehicle rroce-ning . The vehicle shall be processed for shipment, from manufacturers plant to initial receiving activity, in accordance with the manufacturers standard commercial practice. 15 Provided by IHSNot for ResaleNo repr
35、oduction or networking permitted without license from IHS-,-,- MIL-D-45394D 23 9999906 0494592 4 m L MIL-Jl-45394D 6. NOTES 6.1 InteIided- The vehicles covered by this specification are intended for general non-tactical use by the Government, for use by the U.6. Armed Forces, for coupling of semitra
36、ilers and converting semitrailers to full trailers. np data. Acquisition documents should specify the following: Title, number, and date of this specification. Type and size of dolly required(see 1.2). Issue of WDISS to be cited in the solicitation and if required, the specific issue of individual d
37、ocuments referenced (See 2.1.1 and 2.2) - Identification of appropriate service for painting and marking (see 3.1.1.1) - Marking and data plates for appropriate service (see 3.1.1.2). Rustproofing, if required (see 3.1.1.3). Lifting and tiedown provisions, if required (see 3.1.1.5). Lubrication char
38、t, if required (see 3.1.1.6)- A cambered axle, if required (see 3.3.1). A two stage spring assembly, if required (see 3.5.2). A transverse spring suspension, if required (see 3.5.2). Independent 24-volt dc system, if required (see 3.5.5.2). Interconnected 24-volt dc system, if required (see 3.5.5.3)
39、. Disc type wheels, if required (see 3.5.6). Low profile tires, if required (see 3.5.6.1). An adjustable length drawbar, if required (see 3.5.7). Rigid type drawbar, if required (see 3.5.7.2). Rubber mounted drawbar, if required (see 3.5.7.3). 6.3 Subject term fkev word) a. Dolly components Drawbar
40、Fifth wheel Landing gear Lunette . The marked with asterisks (*) to ixate wh a. 6.4 Jdent-cation of chn margins of this specification are re changes (additions, modifications, corrections, deletions) from the previous issue were made. This was done as a convenience only and the Government assumes no
41、 liability whatsoever for any inaccuracies in these notations. Bidders and contractors are cautioned to evaluate the requirements of this document based on the entire content irrespective of the marginal notations and relationship to the last previous issue. 16 Provided by IHSNot for ResaleNo reprod
42、uction or networking permitted without license from IHS-,-,-MIL-D-45394D Custodians : Amy - AT Navy - YD Air Force-99 Preparing activity: Army - AT Project No.2330-Al08 Users: Army - ER Air Force - 84 Navy - MC 17 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
