1、MIL-S-45L52H 23 m 7979906 03707g3 O I- MI GS-4515SH ?2 Jm 1990 SUPERSEDING MI GS-45152G 16 December 1983 MI LI TARY SPEC1 I CAT I ON SEMITRAILERS, LOWBED: COMMERCIAL This specification is approved for use by all Departments and. Agencies of the Department of Defense. 1. SCOPE 1.1 Scrim. This specifi
2、cation covers commercial lowbed semitrailers. Each vehicle procured under this specification is a commercial item which shall be warranted by the manufacturer as specified in acquisition documents. - 1.2 Classification The semitrailer shall be one of the following types, classes, sizes, and styles,
3、as specified (see 6.2). - Leve1 deck - Drop deck - (see 6.4) - (see 6-4) - Level deck extended JBeneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: US Army Tank-Automotive Command, A“N: AMSTA-UED, W
4、arren, MI 48397-5000, by using the self-addressed Standardization Dociunent Improvement Proposal (DD Form 1426), appearing at the end of AMSC N/A fi. Approved for public release; distribution is id imited. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-
5、,-,-MIL-S-45L52H 23 = 999990b 0370742 2 ff I L-6-45 152H Class A Class B Class C Class D * Class E Size 15 Size 20 Size 25 Size 35 Size 50 Size 60 Size 75 Style 4W Style 6W Style 8W I Fixed gooseneck Folding gooseneck, for use with a truck tractor mounted winch Detachable gooseneck Folding gooseneck
6、, hydraulic, self-contained Detachable gooseneck, hydraulic, self-contained 15 ton 20 ton 25 ton 35 ton 50 ton Eso ton 75 ton 4 wheel 6 wheel 8 wheel 1.2.1 Combinations . The combinations of type, class and style ordered under this specification shall be limited to those shown In table I. 2 Provided
7、 by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-S-45152H 23 M 7977706 03707t3 4 i MI GS-45152 3 a n o al al 00 W 0) d u *I4 rl a a o bl $ B I! O d a 9 P H a H H H Ca al E O P; Provided by IHSNot for ResaleNo reproduction or networking permitted without l
8、icense from IHS-,-,-_ - MIL-S-45152H 23 W 7999706 0370744 b W MIL-S-45152H 2. APPLICABLE DCUMENTS 2.1 Governmentdocuments. * 2.1.1 Srecifications.ds. . The following specificatiom, standards, and handbooks form a part of this specification to the extent specified herein. Unless othedise specified, t
9、he issues of these rlmuments shall be those listed in that issue of the Department of Defense Index of Specifications and Standards (DODDIS), and supplement thereto, cited in the solicitation (see 6.2). SPECIFICATIONS FEDERAL W-B-131 - Battery Storage: Vehicular, Ignition, Lighting and Starting- MIL
10、ITARY MIGP-514 - Plates, Identification, Instruction and Marking, Blank. MIL-W-3912 - Wood Parts, Fabricated, For Transport Vehicle Bodies and Similar Applications. STANDARDS FEDERAL FED-STP297 - Rustproofing of Commercial (Nontactical) Vehic lea. MILITARY MIL-STD-209 MIL-STI)-1223 - Slinging and Ti
11、edown Provisions for Lifting - Non-Tactical Wheeled Vehicles Treatment, and Tying hm Military Equipment. Painting, Identification Marking and Datincz and tv- . When specified (see 6.21, the semitrailer shall be equipped with lifting and tying down attachments. Lifting and tying down attachments shal
12、l conform to type II or type III of MIL-STP209. A transportation plate conforming =to composition A (class i or 2) or composition C of MIL-P-514 shall be attached to the semitrailer. transportation plate shall be inscribed with a diagram showing the lifting attachments and proposed lifting slings, t
13、he capacity of lifting attachments and proposed lifting slings, the capacity of each attachment, and the required length and size of each sling cable. trailer, showing the center of gravity, shall be provided on the transpor- tation plate. suitable markings. attachments are intended for the tiedown
14、of the semitrailer on the carrier when shipped. A plate shall be The A silhouette of the semi- Tiedown attachments shall be identified by stenciling or other Tiedown markings shall clearly indicate that the * 3.1.1.7 . When specified (see 6.2), a lubrication chart shall be provided. fittings and spe
15、cify the range and grade of lubricants required for critical temperatures. The chart shall be permanently attached to the semitrailer in a readily vieible location. confoming to composition A (class 1 or 2) OF eomposition C of MIL-P-514. The chart shall direct attention to all lubrication The chart
16、shall be inscribed on a plate 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-S-q5152H 23 = 9999906 03707q8 3 W- MIL-S-45152H 3.2 General design. 3.2.1 Federe . The vehicle shall comply with all Federal Motor Vehicle Safety Standards applicable
17、 to the type of semitrailer furnished and in effect on the date o manufacture. * 3.2.2 Dissimilar metda - All dissimilar metals used throughout the vehicle shall be insulated from one another to prevent galvanic or electrolytic action, * 3.2.3 w. Vehicle ratings shall be the manufacturers published
18、ratings. requirements of this specification. available, verification of ratings shall be available to the appropriate engineering office of the procuring activity. Component and vehicular ratings shall not be raised to meet the When published ratings are not . “he design of the vehicle and optional
19、equipment *.a * 3-2-4 shall permit access for routine servicing and shall permit access for replacement and adjustment of component parts and accessories with minimal disturbance of other components and systems- * 3.2.5 Asbstog. Asbestos materials shall not be used in any form in any part of the veh
20、icle. * 3.3 Performance. The fully equipped semitrailer shall evidence no part failure, deformation, permanent set or interference between parts when towed under each of the conditions specified in table II. The semitrailer also shall show no part failure, deformation, permanent set or interference
21、between parts when towed on 15 percent side slopes, at speeds up to 10 mph, when loaded as specified in 3.4 and when empty. 8 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-S-45152H 23 7779706 0370747 5 U Rated - 15 30,000 20 40,000 25 50,000 35
22、 70,000 50 100,000 60 120,000 75 150.000 MILS-45152H Dise Length of evenly distri- buted payload in center track, centered on Width of each crawler 3.3.1 IhninggLLLlx. The semitrailer shall be capable of assuming a 90 degree angle to a coupled truck tractor without cramping and without damaging the
23、semitrailer or the truck tractor. t 3.3.2 Brake Derformance. The service brakes shall stop the truck tractor-semitrailer combination, with the semitrailer loaded with specified payload, within the stopping distance requirements cif Federal Matar Carrier Safety Regulation 393.52. Requirements shall b
24、e met with a truck tractor loaded to its full rated gross vehicle weight (GVW) and gross combination weight (Gcw). requirements of Federal Motor Carrier Safety Regulation 393.70(a). 3.3.3 . The semitrailer shall conform to the tracking 3.3.4 PoldinP m-we,nec.k Performance - The gooseneck on class B
25、and class D folding gooseneck semitrailers shall be capable of folding to the ground and of being raised and locked as specified herein, with the rated payload positioned as specified herein (aee 3.4) without evidence of any type of component failure, deformation, permanent set, misalinement or inte
26、rference between parts. * 3.4 e . The semitrailer shall be capable of transporting the rated payload (shown in table III for the applicable size) without permanent deformation in the frame or gooseneck or any other part, under the operating conditions specified in 3.3, with the load: (a) distributed
27、 as specified in table III for types I and II or (b) evenly distributed in the loadspace for type V. In addition, type V semitrailer shall be capable of transporting 65 percent of rated payload concentrated (distributed) as specified in table II for the applicable size of semitrailer. mirther, all t
28、ypes of semitrailers shall be suitable for the concentrated, pin point, and localized stresses caused by mobile loada being driven onto the vehicle, by tracks, track pads and wheels, and any other non-evenly distributed loads indicated by the full range of intended uses specified in 6.1. (c) TABLE I
29、II. -. I of lofid mace. feet I iowce. we8 8 16 10 10 11 11 1/2 12 1/2 22 22 24 30 32 I 14 I 34 I 9 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-S-q5152H 23 M 9777906 0370750 Z * 3.5 i. The semitrailer, without payload, uncoupled from the towin
30、g vehicle, resting on ita landing legs on level ground, and with the platform level, ehall conform to the dimensions specified in table IV and the following: (a) hngth of usable loadspace, feet (minimum) (NOIX: SEE 3.5.1) For type I and II i6 For type V . 25 or 40, as specified (see 6.2) (b) Upper f
31、ifth wheel height, from the ground to the underside of the upper fifth wheel plate, inches, plus or minue 1 inch For size 15, 20, and 25. 48 For size 35. 52 * For size 50 and 60 56 x Forsize75. 58 Distance from front of semitrailer to vertical centerline of kingpin, inches, plus or minw 2 inche8 (c)
32、 For type I and II. i8 FortypeV. 22 (d) Turning clearance, from the centerline of kingpin to any portion of semitrailer 6 inches or more below upper fifth wheel plate, inches (minimum) . 82 (e) Forward swing clearance, from center of kingpin to most distant point on semitrailer nose. inches (maximum
33、) PortypeIandII 60 For type V . 56 (f) Ground clearance. to bottom of frame rails. inche8 (minimum) PortypeIandV. 15 FortypeII. 9 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-S-45152H 23 W 7797706 0370751 3 i- MIL-S-45152H I I H n U I 11 Provi
34、ded by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-_- MIL-S-45152H 23 W 777770b 0370752 5 W- MIL-S-45152H 3.5-1 -. The usable load space of the platform shall be defined as follows: (a) For type I level deck - Length from the rear of the gooseneck to th rear
35、 of the platform ahead of the tires (b) For type II drop deck - Length from the rear of the gooseneck to the frame splices at the kickup over the wheels (c) For type V level deck extended - Length from the rear of the gooseneck to the rear of the semitrailer, 3-6 Cm but the weight of the floor, cros
36、s member and outside frame members imposed on the main frame shall be included in the total load imposed on the main frame. calculations shall include complete analysis of the gooseneck, kickup area, floor, crossmembers, and longitudinal frame members. Ehe stress analysis shall include Stress 12 Pro
37、vided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-S-95152H 23 7773706 0370753 7 MIL-S-45152H 3.7 Pltform. * 3.7.1 lhrin,g. The platform shall be floored with apitong, white or red oak, or white ash of 2-114 inch uniform thickness as specified in MIL-W
38、-3912. inch. The average weight of apitong used shall be not less than 50 pounds per cubic foot (pcf), with none of the individual pieces weighing less than 47 pcf, with no more than 15 percent moisture content at time of weighing. Flooring shall be laid lengthwise, as close together as practicable,
39、 attached with corrosion-resistant countersunk bolts and brige style floor clips to eliminate drilling frame members. The top of countersunk bolt heads shall be not less than 1/8 inch and not more than 1/4 inch below the top of the wood surface. metal reinforcements. Wood surface shall be not less t
40、han 1/4 inch higher than adjoining metal members to prevent metal-to-metal contact of the load and the Semitrailer. Platform crossmembers and bracing shall be adequate to sustain the rated payload with the load distributed as specified in 3.4. When platform width extensions are specified (see 3.7.9)
41、 the two center boards shall be secured to permit their easy removal by one man without special tools. extension brackets specified. The tolerance on wood thickness shall be plus or minus 1/8 Exposed ends and edges of the flooring shall be protected with The removable boards shall be capable of bein
42、g used in the * 3.7.2 TVDF! I level de however, with the semitrailer on a level surface and with payload, and while the semitrailer is being loaded with a mobile payload from the rear, the tires shall not extend above the top of the platform. 3.7.3 II roii deck. The platform shall be of the drop dec
43、k type with a drop in the gooseneck area and with a kickup over the rear wheels, * 3.7.4 covered and level, extending from the rear of the gooseneck to the rear of the semitrailer with no protrusions or cutouts. they shall be covered with steel plates. be no interference between the tires and the pl
44、atform or wheelwell covers when the semitrailer is loaded with the specified payload and subject to the maximm suspension system articulation, V level deck extended. The platform shall be completely If wheelwells are necessary, Under all conditions, there shall 3.7.5 Platform exte (beayertu . When s
45、pecified (see 6.2), a platform extension (beavertail) shall be provided. beavertail shall be a nominal 24 inches with a slope not less than 12 degrees and not more than 15 degrees. specified overall length of the semitrailer may be increased by not more than 2 feet. The length of the When a beaverta
46、il is furnished, the maximum 3.7-6 sixteen stake pockets, eight on each side for the 40-foot platform. Stake pockets shall be equally apaced from front to rear of the loading space, except when interference with critical frame members occurs. be located inside the inner edge of the outer rails of th
47、e loading space, Stake pockets shall be furnished with drains to prevent entrapment of water. The stake pockets shall be 4 inches square and shall 3.7.7 Laahixw D r- - shall not protrude beyond the outer edge of the platform when not in use. Types I level deck and type II drop deck semitrailers shal
48、l have ten lashing rings, located as follows: three on each side of the platform; one onleach side of the gooseneck, inside the outer edges; and two across the rear. Type V level deck extended 25-foot semitrailer shall have twelve lashing rings, located as follows: four on each side of the platform;
49、 one on each side of the gooseneck, inside the outer edge; and two across the rear. Type V level deck extended 40-foot semitrailer shall have fourteen lashing rings, located as follows: five on each side of the platform; one on each side of the gooseneck, inside the outer edge; and two across the rear. Each lashing ring and its mountings shall be capable of withstanding pulls o
