1、Vehicle model XM557 I INCH-POUND( 15 AR 1997 SUPERSEDING 14 July 1977 MIIL-PRF-4675 6E(AT) MIIL-S-46756D(AT) Army part number Vehicle type 873 63 76 Semitrailer, Van: Electronic PERFORMANCE SPECIFICATION SEMITRAILER, VAN: 10 TON, 4-WHEEL SERIES This specification is approved for use by the U.S. Army
2、 Tank-automotive and Armaments Command, Department of the Army, and is available for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1. Scope. This specification covers military-designed semitrailers, van, 1 O ton, 4-wheel to be used for housing electronic and similar sens
3、itive equipment. 2. Type classification (see table I). TABLE I. Classification (see 6.2). M58 m574 MX574E1 MX574E2 XM654 XM680 XM680E1 873 63 77 873 643 6 8736767 873 6926 8736438 8736606 18736689 Semitrailer, Van: Electronic Semitrailer, Vm: Electronic Semitrailer, Van: Electronic Semitrailer, Van:
4、 Electronic Semitrailer, Van: Electronic Telemet ering Semitrailer, Van Semitrailer, Van Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: U.S. Army Tank-automotive and Armaments Command, ATTN: AM
5、STA-TR-EBLUE, Warren, MI 48397-5000, by using the Standardization Document Improvement Proposal D Form 1426) appearing at the end of this document, or by letter. AMSC NIA FSC 2330 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Provided by IHSNot for ResaleNo reprod
6、uction or networking permitted without license from IHS-,-,-TP Vehicle model xM703 xM73 8 xM739 XM739E1 XM822 XM823 XM824 XM844 XM845 XM847 XM848 XM849 XM850 XM703E 1 XM912 XM913 XM971 XM971E1 XM97 1E2 XM971E3 xM99 1 xM991E1 XM99 1E2 xM995 XM995E1 XM822E1 xM995E2 MIL-PRF-4675 6E(AT) #LE I. Classific
7、atior Army part number 8736699 8736752 8736754 8736879 8736902 8736903 8736904 8736932 8736933 8736934 8736935 8736936 8736937 873695 1 8736969 8736970 8736998 8750087 8750090 8750091 8750048 8750092 8750096 8750049 8750093 8750094 8750097 2. APPLICABLE DOCUMENTS Vehicle type semitrailer, Van Semitr
8、ailer, Van: Telephone Semitrailer, Van: Switchboard Semitrailer, Van: Switchboard Semitrailer, Van: Petroleum Laboratory Semitrailer, Van: Teletype Semitrailer, Van: Crypto Semitrailer, Van: On-line Semitrailer, Van: off-line Semitrailer, Van: Dig Term 1 Semitrailer, Van: Dig Term 2 Semitrailer, Van
9、: Sec Voice Semitrailer, Van: Voice Switch Semitrailer, Van: Elect Equip Semitrailer, Van: Main Frame Semitrailer, Van: Mass Storage Semitrailer, Van: Data Center Semitrailer, Van:. Data Center Semitrailer, Van: Satellite Semitrailer, Van: Satellite Semitrailer, Van: Repair Facility Semitrailer, Van
10、: Repair Facility Semitrailer, Van: Central Semitrailer, Van: Test Facility Semitrailer, Van: Test Station Semitrailer, Van: Petroleum Semitrailer, Van: Mass Storage Terminal Operation Terminal, Maintenance spreader bar not furnished with vehicle. 3.4.9 Tiedown devices. The semitrailer shall be prov
11、ided with tiedown devices sufficient in number and structurally sound for transporting by rail, sea, and airborne operations (see 4.6.10). 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MTL-PRF-4675 6E(AT) 3.4.10 Landinn gear and leveling jacks. T
12、he landing gear, when supporting the fiont part of the semitrailer while the rear part of the vehicle is resting on the suspension, shall withstand without damage the strains imposed when coupling and uncoupling the semitrailer to and fiom the towing vehicle. Landing gear and leveling jacks shall be
13、 capable of supporting the semitrailer and the evenly distributed payload and they shall operate freely when the semitrailer is lied and lowered. Swing-up type landing gear shall be fkeely rotatable into the horizontal position during aircraft loading and unloading, when specified (see 4.6.11). 3.4.
14、1 1 Seals. When fording or operating in mud, sand, or snow, the seals shall be capable of preventing the entrance of foreign matter into the bearings, which are exposed to contamination during these operations. Ail bearing seals shall restrict the leaking of lubricants fiom bearings (see 4.6.12). 3.
15、4.12 Safety. The trailer shall comply with all Federal Motor Carrier Safety Regulations (FMCSR) and Federal Motor Vehicle Safety Standards (FWSS) requirements applicable to this vehicle at the time of manufacture. The semitrailer shall be free of sharp projections or edges that may cause the operato
16、r or maintainer injury. Ail rotating or moving parts, hot surfaces, electrically energized or high pressure components, or other inherently hazardous items shall be effectively guarded or insulated to protect operating and maintGnance personnel, 3.5 Performance. Each semitrailer shall meet performan
17、ce requirements specified herein with basic vehicle equipment as depicted on the drawings and serviced with products listed in table V. Semitrailer shall transport actual rated payload or simulated load of equal weight and distribution when towed by a truck tractor, 5 ton, 6x6, M52 (see 4.6.13). 3.5
18、.1 Turning. ability. The loaded semitrailer coupled to the towing vehicle or dolly shall make right and left turns within its minimum turning circle. The semitrailer shall assume an angle of 90 degrees to the towing vehicle without damage to the loaded semitrailer and towing vehicle, and without int
19、erference between the semitrailer and the towing vehicle (see 4.6.14). 3.5.2 Service brakes. The service brakes of the loaded semitrailer and towing vehicle shall control, decelerate, and stop the combination with the rated payload within 30 feet fiom a speed of 20 mph on dry, hard, relatively level
20、 and smooth surface road. Hydraulic fluid and air leakage shail not be permitted. Application of brakes on all wheels of the semitrailer and towing vehicle shall be simultaneous (see 4.6.15). 3.5.2.1 Automatic actuation. The automatic brake-actuation device of the semitrailer shall automatically act
21、uate the service brakes to stop and hold the semitrailer upon breakaway fkom the towing vehicle. The service brakes shall then hold the loaded semitrailer stationary when on grades up to and including 20 percent for a period of not less than 15 minutes (see 4.6.15). 7 Provided by IHSNot for ResaleNo
22、 reproduction or networking permitted without license from IHS-,-,-I MIL-PRF-467 56E(AT) 3.5.3 Fording. The semitrailer, without the use of special kits, shall ford fresh or salt . van body and damaging the submerged components, such as suspension, air-mounted kingpin, water crossing 60 in. deep for
23、 a period of 15 minutes without water leaking into the interior of the brake system, wheels, jacks, and electrical components, including ancillary equipment to the trailer mounted or stowed beneath the water level. Other equipment, such as generators and gasoline engines, a submerged during fording,
24、 shall be protected by special covers or kits as specified by the contractual requirements (see 4.6.16). 3.5.4 Environmental. The semitrailer, when properly serviced, shall operate and transport equipment or cargo under any extreme condition of inclement weather and in ambient air temperatures from
25、-50 degrees Fahrenheit (“F) to +125“F, without indication of deterioration. when in storage, the complete semitrailer shall withstand climatic extremes, as specified in MIL-STD-210, without deterioration that may cause failure of any component of the semitrailer (see 4.6.17). 3.5.5 Towing speeds and
26、 trailing ability. The semitrailer, attached to the towing vehicle and transporting the maximum rated payload over level, smooth, improved, and prepared hard- surface roads at a sustained speed of 50 miles per hour (mph), shall track towing vehicle without swerving from side to side over 3 in. to ea
27、ch side of the path of the towing vehicle when it is moving in a straight line (see 4.6.18). 3.5.5.1 Cross-country operation. The semitrailer, when transporting the rated payload over unimproved roads, trails, open fields, rolling hills, and other cross-country terrain at speeds. up to 15 mph, shal
28、operate without failure, permanent deformation, or damage to itself or to the towing vehicle (see 4.6.19). 3.5.6 GradeabfiW. When towed over a dry, hard surface free of loose material, the Semitrailer shail exhibit gradeability and stability specified herein (see 4.6.19). 3.5.6.1 Longitudmal grades.
29、 The semitrailer shall follow the towing vehicle without weaving to the extent affecting the controllability of the vehicle combination when ascending or descending longitudinal grades having a 20 percent grade (see 4.6.19). 3.5.6.2 Side slopes. The left and right sides of the semitrailer shall foll
30、ow the towing vehicle without slipping or upsetting when operating on 20 percent side slopes (see 4.6.19). 3 S.7 Electromagnetic interference. When specified (see 6.2), the complete vehicle shall be shielded against electromagnetic interference in accordance with the tactical vehicle requirements of
31、 Class IIIA of MIL-STD-Wjl and MIL-STD-285. The frequency range for the shielding and attenuation in decibels shall be specified by the user (see 4.6.20). 8 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- flIL-PRF-4b75bE 777770b 2030887 703 = 3.6 Cl
32、eaning. treatment. and painting. Unless otherwise specified (see 6.2), aii cleaning, treatment, and painting shall be in accordance with the manufacturers standard practice. Color . required shall match color chips of FED-STD-595. 3.7 Marking. Vehicle marking shall be in accordance with MIL-STD-642.
33、 3.8 Data plates. Au data plates shall be in accordance with the manufacturers standard practice. 3.9 Workmanship. The workmanship displayed in the fabrication and assembly of the semitrailers shall be such as to meet the performance under all applicable environmental conditions. The quality of work
34、manship shall assure delivery of semitrailers, which are free from defects, improper manufacturing or assembly practices, and which meet or exceed requirements specified herein. Defective components or parts and assemblies, which have been repaired or modified to overcome deficiencies, shall not be
35、furnished. Painted surfaces shall be free from sags or runs. 3.10 Air transportability. If specified, the design for air transportability shall conform to MIL-STD-179 1. 4. VERPICATION 4.1 Classification of inspections. The inspection requirements specified herein are classified as follows: a. First
36、 article inspection (see 4.2). b. Conformance inspections (see 4.3). 4.2 First article inspection. Unless otherwise specified (see 6.2), first article inspection shall be performed on the first production semitrailer and on two additional semitrailers at the initial production. This inspection shall
37、 include the examinations of 4.4 and the tests of 4.5. 4.2.1 First production vehicle inspection. The first completed production vehicle shall be subject to provisional inspection by the Government, after a complete inspection by the contractor which includes road test in accordance with 4.2. 1. 1.
38、4.2.1.1 Fifty mile test. The semitrailer shall be loaded with highway payload or with a simulated load of equal weight and operated for a distance of not less than 50 miles. Test course selected by the manufacturer shall be on smooth, approximately level, hard-surfaced roads. 9 Provided by IHSNot fo
39、r ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-PRF-4675bE 0h 2030888 84T 4.2.2 Initid Droduction vehicle test. After completion of prehnhary inspection of the first semitrailer, the second and third produced shall be subjected to examination and tests specified her
40、ein and the 8000 mile test specified in table II. TABLE II. Course High speed paved road (APG Munson Test Area) Improved gravel road (APG Munson Test Area) Cross-country terrain (Perryman Course) No. 1 secondary roads (APG Perryman Test Area) Hilly secondary road (Churchville Test Course C) Belgian
41、block (APG Munson Test Area) 300 mile test. Mileage and speeds 40% up to 50 mph maximum 27% up to 25 mph maximum 25% up to 15 mph maximum 6% up to 15 mph maximum 2% up to 15 mph maximum 4.3 Conformance inspection. Conformance inspection shall include the examinations of 4.4 and the tests in accordan
42、ce with table IV. 4.3.1 SamDling. Samples from an inspection lot for conformance inspection shall be selected in accordance with ANSUASQC 21.4. * 4.4 Examinations. Visual, dimensional, and primary fimctional examination shall be performed on each semitrailer for conformance to the technical data pac
43、kage and this specification. A minimum of examination shall be perormed against the classification of defects shown in table III. Any redesign or modcation of the contractors standard product to comply with specified requirements, or any necessary redesign or modification foliowing failure to meet t
44、he specified requirements shall receive particular attention for adequacy and suitability. This element of inspection shall encompass all visual examinations and dimensional measurements. Noncompliance with any specified requirements or presence of one or more defects preventing or lessening maximum
45、 efficiency shall constitute cause for rejection. 10 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-4b75bE m 0b 2030889 78b m Category Major: 101 102 103 104 105 106 107 108 1 o9 110 111 112 113 114 Minor: 201 202 MIL-PRF-4675 6E( AT) TABLE
46、III. Classification of defects. Defect Frame; structural, welding, riveting, or sheet metal defects FiRh wheel plate and kingpin; improper mounting and Axles; improper assembly and mounting; welding defects Wheels and tires; tire damage (see 3.4.1.1). Electrical system components, and circuits; malf
47、unction; Doors; improper fits, water leaks (see 3.4.5). (see 3.4). assembly; welding of locking action (see 3.4). (see 3.4). inoperative, damage (see 3.4.2). Tiedown devices; improper mounting and assembly Landing gear; malfunction extended, retreated stowed or Gaskets and seals, improper fits, leak
48、s (see 3.4.11). welduig defects (see 3.4.9). locking action (see 3.4.10). Trailing ability- nonconformance (see 3 .5.5). Turning ability; nonconformance (see 3.5.1)- Service brakes; malfunction; leak; nonconformance to Towing speeds, highway; nonconformance (see 3 S.2). Automatic brake actuation; ma
49、lfunction; nonconformance stopping distance (see 3.5.2). (see 3.5.2.1). Wheels and tires; improper size, type, and mounting Wiring or tubing; improperly mounted; coded; or (see 3.4.1.1). protected; defective (see 3.4.2.2). Method of examination Visual Visual Visual Visual Visual and lnctional Visual and lnctional Visual and Functional Visual and Functional Visual and Functional Visual and Functional Visual and functional Visual and function
