1、cN?ypm SENb;ITIVE I MIG33-45371R 5Wch 19 90 SUPERSEDING MIL-3-45371P 11 February 1987 MILITARY SPECIFICATION BUSES. MOTOR: SUBURBAN AND INTERCITY. 41 To 53 ADULT PASSENGER, 4x11. 6x2 AND 6x4, CMMERCIAL This specification is approved for use by all Departments and Agencies of the Department of Defens
2、e. i, SCOPE 1.1 Ccope. This specification covers four-wheel, two-rear wheel drive; and six-wheel, two or four-rear-wheel drive diesel engine driven suburban and intercity type buses for long distance transportation, with facilities for stowing passenger baggage. single front axle and single or tande
3、m rear axles. Vehicles procured under this specification are commercial items which the manufacturer must warrant 88 specified in acquisition documents. Buses include a rear or mid-mount diesel engine; The bus shall be one of the types and passenger 1-2 capacities shown in table I, as specified (see
4、 6.2): . . TABLE I. Beneficial comments (recommendations, additions. deletions) and any Wrtinent data which may be of use in improving this document should be addressed to: US Army Tank-Automotive Command, ATTN: AMSTA-UED, Warren, MI 48397-5000, by using the self-addressed Standardization riocUment
5、Improvement Proposal (DD Form 426) appearing at the end of EEiEiI dociiment or by letter. AMSG N/A -IRUTION Sm- Approved far pblic releaaa: diatrihut,icw ia unlimited- Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-. - MIL-E-45373R 23 M 797790b 0438
6、078 b MIL-B-45371R 2. APPLICABLE UOCUMENTC . The following * 2.1.1 -. standards. nd_handhnnha specifications, standards, and handbooks form a part of this document to the extent specified herein. documents are those listed in the issue of the Department of Defense Index of Specifications and Standar
7、ds (DODISS) and supplement thereto, cited in the solicitation (see 6.2). Unless otherwise specified, the issues of these SPRCIPICATIONE PEDERAC A-A-393 - Extinguisher, Fire, Dry Chemical (Hand Portable 1. F-P-351 - Filters and Filter Elements, Fluid Pressure: Lubricating Oil, Bypass and hl1 Flow .)
8、Fiber Base, Low Pressure Laminated. x W-B-i31 - Battery, Storage: Vehicular, Ignition, Lighting and Starting. L-P-383 - Plastic Material, Polyester Resin, Glasa LLL-F-1238 - Floor, Covering, Linoleum. MILITARY MIL-P-8013 - Plastic Materials, Polyester, Resin, Glass Fiber Base, Low Pressure Laminated
9、. STANIlAl?M FEUF3AL PED-STD-297 - Rustproofing of Commercial (Nontactical) Vehicles - MILITARY MI L-STD- 1223 - Nontactical Wheeled Vehicles Treatment, Painting, Identification Marking and Data Plate standards- * (Unless otherwise indicated, copies of federal and military specifications, standards,
10、 and handbooks are available from the Naval Publications and Forms Center, Military Specifications and Standards, Bldg. 4D, 700 Robbins Avenue, Philadelphia, PA 19111-5094.) t 2.1.2 athI31? Griverrimen.t;._EaQcumenta. the body with all attachments, accessories, and equipment; a full complement of fu
11、el, lubricants and coolant; and an operator. 3.2.5 GrossI, we- . Gross vehicle weight (GVW) shall be the combined curb weight and payload weight. The payload shall be the weight of the number of passengers specified based on 165 pounds per passenger and 166 pounds for the driver, plus baggage. The w
12、eight allowance for baggage shall be not less than 22.5 pounds per passenger- * 3.2.6 Qimmhma . Overall dimensions shall be as follows: (al (b) (cl Overall width shall not exceed 96 inches, exclusive of lights, mirrors, fenders and safety equipment. Overall height shall be not greater than 136 inche
13、s; Overall length shall be not meater than 40 feet 6 inches. Overall lenath shall include all front and rear protrusions except as otherwise specified herein; Ground clearance shall be not less than 7 inches under axles and stabilizer rods and not less than 9-1/4 inches under all parts - (d) other 6
14、 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-B-45371R 3.2.7 m. Vehicle ratings shall be manufacturers published ratings. Component and vehicular ratings shall not be raised to meet the requirements of this specification. available, verificati
15、on of ratings must be submktted to the engineering office of the procuring activity- When published ratings are not . 3-2.8 bem- The design of the vehicle and optional equipment . shall permit access for routine servicing and shall permit access for replacement and adjustment of component parts and
16、accessories with minimal disturbance of other components and systems. * 3-2.9 (b) Automatic transmission with built-in hydraulic retarder; (c) An engine type brake that brakes by engine compression through opening exhaust valves near piston top center and venting to the atmosphere, The engine brake
17、shall include modulated control- The engine brake shall permit the bus loaded to GVW on a dry, hard road surface to negotiate a six percent downgrade without exceeding 27 mph, within the operating restrictions of the engine and transmiasion and without the use of service braes. 3.4 * 3.4.1 Engine. T
18、he bus shall be furnished with a liquid-cooled, compresaion ignition, two-stroke or four-stroke cycle diesel engine with not less than six cylinders. The engine shall be the manufacturers standard or optional engine for the commercial model vehicle which meets or exceeds the requirements of this spe
19、cification- The engine shall be mounted at the rear or mid-mounted under the floor between the front and rear axles. oil cooler may be furnished. prediction calculations shall be determined in accordance with CAE 5816 or EAEd1349. manufacturer for the vehicle model furnished. An integral Engine net
20、horsepower used in performance The engine furnished shall be as recommended by the emine 3.4.1.1 -e coe. The engine compartment ventilation an desim shall allow operation without damage to engine, transmission and all components when the vehicle is operated in ambient temperatures of up to 112QP. an
21、d routine maintenance of engine and engine components. compartment cover or doors shall be provided with a device to hold them open for servicing and maintenance. Ready access to engine compartment shall be provide for servicing Hinged engine 3.4-1.2 I CkLUibm A.full-flow type oil filter shall be fu
22、rnished. unless otherwise recommended by the e or not less than 60 amperes at engine idle speed and not less than 100 amperes at not more than 60 percent of the engine governed speed for a 24-volt system. 3.4-5.1 -ent 17.0 - volt altem - When an independent air conditioning system is provided with a
23、 separate 120-volt alternating current ac) alternator driven by the auxiliary engine, the main alternator shall have a direct current (dc) output of not less than 90 amperes at engine idle, 125 amperes at 60 percent of engine governed speed, and 140 amperes rated capacity, When a 120-volt alternator
24、 is furnished, it shall have adequate power for operation of all air conditioning fans and blowers and shall have a rated output of not less than 1,200 watts at 120 volts ac, single-phase, 60 Hertz - When no air conditioning . 3.4.3.2 Alternator without air CO- is furnished, the alternator shall pro
25、vide not less than 90 amperes at engine idle and not less than 125 amperes at 60 percent of engine governed speed for a 12-volt system, or not less than 45 amperes at engine idle speed and not less than 63 amperes at 60 percent of engine governed speed for a 24-volt system. 3.4.4 he1 Fcvstem. The fu
26、el system shall conform to Federal Motor Grrier Safety Remlations 393.65 and 393.67 and shall provide all necessary pipina. fittings, and accessories. 3-4-41 . An air cleaner(s1 shall be furnished. The air cleaner(sJ shall be of the dry type, with air restriction indicator to show when filterCs) sho
27、uld be replaced- 9 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-_ _ MIL-B-45371R 23 W 9777906 0418086 5 MIL-B-4537lR 3.4.4.2 hei tanka. A fuel capacity of not less than 125 gallons shall be provided. provided. The filler sha 1 be identified and ar
28、ramed for safe and convenient filling from t e exterior of the body. The access for the filler neck shall be located to prevent any accumulation of spilled fuel between the body panels or shall be sealed to prevent entry of spilled fuel to any point inside the exterior body panels. When more t an on
29、e tank is furnished, a balance line shall be 3.4.5 Euel ttect . If the fuel tank extends below the chassis frame, or body skirt, the tank shall be protected on the underside and at both ends by a ateel plate of not less than 12 gage (0.1046 inch) thickness. accumulated liquids and shall permit acces
30、s to the fuel tank drain plug. fuel tank protection plate is not required if a Federal Motor Carrier Safety tank is provided. The protection plate shall provide for drainage of any A . ;Jr 3.4.6 e leaat equal to the maximum torque delivered by the engine. axle gear ratio shall be selected to provide
31、 the performance specified in 3.3-1 through 3.3.1.3. Transmission input torque capacity shall he at Transmission and . Unless otherwise 3.4.6.1 AWXUX!amatic transmission .a specified, the manufacturers standard automatic or semiautomatic transmission recommended for the make and model coach shall be
32、 provided. transmission shall provide required performance under all normal operating conditions and under all conditions specified herein. include a torque converter. The The transmission shall When specified (see 6.2), the 1. 3.4.6.2 manufacturers standard constant mesh manually shifted tranamissi
33、on shall be furnished. one reverse speed. The transmission shall provide at least four forward speeds and * 3.4.6.2.1 Cliitch. “he clutch shall have a torque capacity ercceediw the maximum delivered engine torque and shall be the largest capacity clutch offered for the engine and the vehicle model f
34、urnished. required to disengage the clutch shall not exceed 60 pounds. assists, when employed, may be attached or incorporated within the clutch assembly. Clutch lining shall be asbestos free. Pedal effort Sprim or air 3.4.7 I.l or the drive axle shall have four radius rods to control lateral and lu
35、nzitudinal movement, swing arm suspension design incorporating adequate means to control lateral The rear axle tandem assembly shall be the manufacturers standard. The non-drive axle shall be of an independent or 11 Provided by IHSNot for ResaleNo reproduction or networking permitted without license
36、 from IHS-,-,-_ -I-_I._ - MIL-B-45371R 23 9999906 041O 9 MIL-6-45371R and longitudinal loads such as upper and lower “A“ frames and an adhatable toe-in link. buahings that do not require periodic lubrication. 3.4.9.2.3 plastic. type ash receptacles shall be permanently installed in locations conveni
37、ent to passewers in the two front seats, and on the back of each two-passenger seat. The seat cushions shall have a free depth of not less than 17 Seat back8 The material shall minimize force and spread the area The rear Closure 21 Provided by IHSNot for ResaleNo reproduction or networking permitted
38、 without license from IHS-,-,-MIL-B-45371R * 3.5-8.2 II intercitvl . Type II buses shall be provided with deluxe intercity type seating to accommodate the number of passengers specified. All seats shall be of the forward-facing type on not less than 32-1/2 inch centers. each side with the front seat
39、 cuahion spaced at least 12-1/2 inches from the stairwell modesty panel and 12-1/2 inches from the drivers modesty panel, Unless a lavatory is specified (see 3.5.11.1), the manufacturers standard ive-pasaenger, full width rear cros8 seat shall be provided. Seats located at or near wheelhouaings shal
40、l be installed to minimize interference with passenger comfort. All seats shall be secured to prevent shifting wider all operating conditions. All two-passenger seats may be mounted on a recessed track, to permit varied arrangement of seats. recessed track, a plastic filler strip shall be provided t
41、o close the voids between seat mounting points. Two-passenger reclining type seats shall be provided on When seats are mounted on a * 3.5.8.2.1 mer mat frms tme II). . Prames of the passenger seats shall be constructed of formed metal tubing, wall mounted, with legs in center or on the aisle side, o
42、r shall be center “T“ pedestal mounted, passenger seat shall include armrests and a two-position adjustable footrest, or if a lavatory is specified, a foot rest need not be provided on the two passenger seat directly in front of the lavatory. The 2-passenger mats shall be American Seating Company, N
43、ational Seating Carny, or equal. The seats shall be the manufacturers standard minimm %-inch width, Aisle width shall be minimum 14 inches. Seat cushions shall be not less than 17 inches in depth from a vertical plane at the front edge to a vertical plane at the most forward part of the seat back cu
44、shion. cushions shall be constructed with full depth polyester foam or polyurethane foam, and shall include a headrest. individual type. The top, the upper corners, and not less than the upper 6 inches of the rear surface of each 2-paasenger seat back shall be constructed of or covered with force di
45、stributing material. force and spread the area of contact upon impact by an occupant in the next seat to the rear, The rear surface of the seat backs below the force Bistributiw material shall be covered with scuff- and impact-resistant plastic. Closure type ash receptacles shall be provided for eac
46、h 2-passewer seat, except for the front aisle seats and the center of the rear cross seat. t 3.5.8.3 shall have an Underwriters Laboratory rating of 1OB:C or more: shall include a metal safety pin and wire; and shall conform to type I or type III, class 2, size 5 Emergency equipment shall The fire 2
47、5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-B-45371R of A-A-393. whether it is fully charged. be furnished or when specified (see 6.2), a bracket shall be provided for future installation of a 12-unit type first aid kit. aid kit size is 9-7
48、/16 inche8 long, 5-7/16 inches wide, and 2-7/8 inches thick. vehicle. The fire extinguisher shall permit visual determination as to Not less than a 9-unit type first aid kit shall The 12-unit type first The 12-unit type kit is not required to be furnished with the 3.5.11.9 bar bumpar. “he rear bumpe
49、r shall have anti-ride and anti-hitch features. * 3.5.11.10 Inter3nr SVFI- . An interior public address (PA) system shall be furnished. microphone, an on/off control and a volume control conveniently located in the drivers area. The apeakers shall be located so that the PA system is audible throughout the bua while the bus is in motion. The PA system shall include 8. switched 3.5.12 -. Type II buses and unless otherwise specif
