1、MIL-T-b23LC 23 W 9777706 Oi-127703 3 W I. MIL-T-62318C 16 April 1990 SUPERSEDING 28 September 1984 MI GT-62318B MILITARY SPECIFICATION TRUCK, MULTISTOP DELIVERY: FORWARD CONTROL AND CHASSIS, TRUCK: FORWARD CONTROL, DIESEL AND -GASOLINE ENGINE DRIVEN, 13,000 TO 21,000 POUNDS GVW, 4x2, COMMERCIAL This
2、 specification is approved for use by all Departments and Agencies of the Department of Defense. SCOPE * 1.1 .QJXL This specification covers diesel and gasoline engine driven, four-wheel, two-rear wheel drive, multistop delivery trucks and truck chassis, having minimum gross vehicle weights (GW) of
3、13,000 to 21,000 pounds, for normal operating conditions. Vehicles procured under this specification are commercial items which shall be warranted by the manufacturer as specified in acquisition documents. The vehicle shall be one of the types and classes 1. I. 2 G.l.aw1-f Eat ion shorn in table I,
4、as specified (see 6.2): TABLE I - Vehicle cln8sifination. Ncmewlature Chi3EL A- ABCD I Truck, multistop delivery, forward control II Chassis, truck, forward control III Chassis, truck, forward control, with front : section ARCD- Beneficial. comments (recommendations, additions, deletions) and any pe
5、rtinent data which may be of use in improving this document should be addressed to: US Army Tank-Automotive Command, ATTN: AMSTA-URD, Warren, MI 48397-5000, by using the self-addressed Standardization Ducument Improvement Proposal (DD Form 1426) appearing at the end of s document or bv letter- AMSC
6、N/A IFSGSSSOI 4. unlimited. Approved for public release; distribution is Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-6231C 23 W 777770b 0427704 5 W MIL-T-62318C 1.2.1 Claaa. Clma of vehicle shall be determined by minimum gross vehicle weigh
7、t rating a8 follows: Class A - 13,000 pounds Class B - 16,000 pounds Class C - 19,000 pounds Class D - 21,000 pounds. 2. APPLICABLE DOCUMENTS 2.1 - The following M 2.1.1 SDecifioations? standards anmAq specifications, standards and handbooks form a part of this document to the extent specified herei
8、n. Unless otherwise specified, the issues of these documents are those listed in the issue of the Department of Defense Index of Specifications and Standards (DODISS), and supplement thereto, cited in the solicitation (see 6.2). SPECIFICATIONS FEDERAL W-B-131 * W-F-800 - Battery, Storage: Vehicular,
9、 Ignition, - Fuel Oil, Diesel. Lighting and Starting. MILITARY * MIL-P-514 - Plates, Identification, Instruction and * MIL-T-5624 - Turbine Fuel, Aviation, Grades JP-4 and Marking, Blank. JE-5 I Weather, Operational and Preservative, JP-8. MIGB-46176 - Brake Fluid, Silicone, Automotive All * MIL-T-8
10、3133 - Turbine Fuel, Aviation, Kerosene Type, Grade ” STANDARDS FEDERAL PED-STD-297 - Rustproofing of Commercial (Nontactical) Vehicles - STANDARDS MILITARY MIL-STD-1223 - Nontactical Wheeled Vehicles Treatment, Painting, Identification Marking and Data Plate Standarda. * (Unless otherwise indicated
11、, copies of federal and military specifications, standarda and handbooks are available from the Naval Publications and Forms Center, Military Specifications and Standard, Bldg. 4D, 700 Robbins Avenue, Philadelphia, PA 19111-5094.) 2 Provided by IHSNot for ResaleNo reproduction or networking permitte
12、d without license from IHS-,-,-MIL-T-b23LC 23 W 7797706 0427705 7 M MIL-T-62318C * 2.1.2 Qthw the body (except for types II and III); and a full complement of fuel, lubricants, and coolant I 3.2.5 . Gross vehicle weight (GVW) shall consist of curb weight, operator weight (computed at 175 pounds), an
13、d a payload to provide not less than the specified GW. 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-623LC 23 M 9777906 0427709 4 M MItT-62318C 3.2.6 i!k.ieiht diBtributicm - For. type I multistop, the gross axle weight ratings (GAWR) shall
14、 be not less than 4,000 pounds on the front and 10,000 pounds on the rear. For types II and III chassis, the distribution of specified GW for the purpose of establishing suspension, axle and tire rating requirements shall be determined with the payload (difference between specified GVW and curb weig
15、ht including operator) evenly distributed over the specified body load area (see 3.5.2 or 3.5.3). 3.2.7 Rsiw 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. T
16、he design of the vehicle and optional equipment . * 3.2.9 Lsbsstoa. Asbestos materials shall not be used in any part of the vehicle - 3.3.1 Smeda and mm . High and low speed requirements shall be met with the truck loaded to specified GVW. . The vehicle shall ascend continuous 3.3.1.1 Hip21 smed mm
17、grades specified in table III at 50 miles per hour (mph). requirementa shall be met with the main transmission in direct drive. Gradeability shall be verified with calculations in accordance with SAE 5688 (see 6.3). Gradeability TABLE III. -. 7 Provided by IHSNot for ResaleNo reproduction or network
18、ing permitted without license from IHS-,-,-MIL-T-6233C 23 7779706 0427730 O tfIL-T-rjrS31SC * 3.3.1.2 kswmd Low speed for vehicles with a manual transmission ahall be calculated with the engine operating at not less than 35 percent of recommended governed speed, and shall provide not more than the v
19、ehicle speed specified in table IV for the corresponding number of available forward speeds. TABLE IV. Wcle low sxeed ream- 3.3.1.3 Maximumaeared swed - The maximum geared speed at engine governed speed shall be not less than 58 mph. specified shall be determined by calculating in accordance with th
20、e follawing formula : Conformance to geared speed Maximum geared speed (mph) = Governed smed rpm) Total gear reduction x tire factor (see 6.3). 3.3.2 servicebrakea. The service brakes shall control and hold the vehicle, when loaded to its specified GVW, on a 30 percent grade. The service brakes shal
21、l stop the vehicle, loaded to specified GVW, within the stopping distance requirements of Federal Motor Carrier Safety Regulation 393.52. 3.4 Chatisis commnents. 3.4.1 m. The engine furnished for the specified vehicle class shall be the chassis manufacturers standard or optional engine for the comme
22、rcial model truck which meets or exceeds the requirements of this specification, * 3.4.1.1 Diesel em . Unless otherwise specified (see 3.4.1.2), the vehicle shall be equipped with a liquid cooled, compression ignition, two-stroke or four-stroke cycle diesel engine, with not less than four cylinders.
23、 Engine net horsepower used in performance prediction calculations shall be determined in accordance with SAE 51349. The engine shall demonstrate the performance characteristic specified herein when using diesel fuel conforming to W-F-800. engine shall operate satisfactorily on grade JP-4 and grade
24、JP-5 fuel conforming to MIL-T-5624 under emergency, short duration condit ions and on grade JP-8 fuel conforming to MIL-T-83133 under normal conditions, loss when operating on JP-4, JP-5 or JP-8 is acceptable. be available showing that a representative engine has been tested and certified to meet th
25、e requirements of NATO AEP-5 test procedures (400 hours dynamometer teat to assure JP-8 compatibility). In addition, when specified (see 6.2), the A power A test report shall Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-* MIL-T-6231BC X 3.4.1.2 .
26、When specified (see 6.2), the vehicle shall be equipped with a liquid cooled, internal combustion, four-stroke cycle gasoline engine with not less than six cylinders. The engine furnished shall produce the required vehicle performance when operated on unleaded fuel with a research octane rating of 9
27、1, at an engine speed not more than the manufacturers recommended operating speed. warranted operation on unleaded fuel, when used in accordance with the operators manual. calculations shall be determined in accordance with SAE J1349. Unless otherwise specified or required by foreign laws, vehicles
28、for overseas use shall be capable of accepting and operating on leaded gasoline. The engine shall be capable of Engine net horsepower used in performance prediction 3.4.1.3 i2iLEbx - A full flow typB oil filter shall be furnished. L 3.4.1.4 Lkding svstem . The cooling system shall maintain engine co
29、olant at a temperature below the boiling point with the vehicle loaded to rated GVW and operated at an altitude of 10,000 feet above sea level or in an ambient air temperature of not less than 125 degrees Fahrenheit (OP). coolant system shall include a surge tank, or a coolant recovery reservoir of
30、not less than two-quart capacity. The 3.4.1.5 Coolint temperature contra . Thermostatic-control o% engine On diesel engine driven vehicles, the coolant temperature shall be provided. control shall include partial thermostatic control of coolant flow through the radiator and thermostatically controll
31、ed radiator shutters or complete thermostatic control of all coolant flow through the radiator. 3.4.1.6 tnamiaaian specified (see 3.4.5.2), the vehicle shall be provided with automatic or semiautomatic transmission. The transmission shall include a hydraulic torque convertor and not less than three
32、forward gear ratios for type I nultietops and four forward gear ratios for all other types. driving range selector position shall provide not less than four gear ratios without movement of the selector (three on type I). ,. The normal - When specified (see 6.2), a 3.4.5-2 M;uiuallv shifted tr- . man
33、ually shifted transmission shall be furnished. trammiesion for clasa A, B, and C vehicles shall have not less than four forward and one reverse speed, with SAE 5704 power takeoff opening provided. Por class D vehicle, the transmission shall have not lesa than five forward and one reverse speed with
34、SAE 5704 power takeoff opening8 on both right and left sides. least the three highest forward speeda, or for class D, vehicle constant mesh transmiasion may be provided. The clutch shall be of the largest capacity offered for the typ? and class vehicle and engine furnished, with the clutch torque ca
35、pacity exceeding the maximum delivered engine torque. ahall be asbestos free. The manually shifted The transmission shall provide for synchronized shift for at 3.4.5.2.1 M. The clutch lining * 3.4.5-3 high tensile steel utilized may be two gages lighter weight in accordance with US Standard gages. f
36、urnished - Aluminum alloys of equal strength may be 3.5.1.2 adjustment of the engine and brake systems; filling and charging of battery; alinement of front wheels; inflation of all tires; complete lubrication of the chassis, engine, and running gear with grades of lubricants recommended for the ambi
37、ent air temperature at the delivery point; servicing of the cooling system with a solution of ethylene glycol type antifreeze and water in equal parts by volume; and servicing of the windshield washer reservoir with water and appropriate additives. 3.6 Servic.me: 3.7 . Defective components or parts
38、and assemblies which have been repaired or modified to overcome deficiencies shall not be furnished. Welded, bolted, and riveted construction utilized shall be in accordance with the highest standards of the industry. 4. QUALITY ASSURANCE PROVISIONS . 4.1 Respansibilitv for inapecinges . The mmgins
39、of this specification are marked with an asterisk (*) to indicate where changes (additions, modifications, corrections, deletions) from the previous issue were made. This was done as a convenience only and the Government assumes no liability whatsoever for any inaccuracies in these notations. Bidder
40、s and contractors are cautioned to evaluate the requirements of this document baaed on the entire content regardless of the marginal notations and relationship to the last previous issue. Custodians : Navy - YD Air Force - 99 Army - AT Preparing Activity: Army - AT Project No. 2320-0437 24 *U.S. GOVERNMENT PRINTING OFFICE: 1990 - 704-034l30560 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
