1、MIL-C-28995A(MC) 4 April 1977 SUPERS ED ING MIL-C-28995(MC) 9 March 1973 MILITARY SPECIFICATION CRANE, WHEEL-MOUNTED: HYDRAULIC, 4x4, FULL REVOLVING, 7-1/2-TON This specification is approved for use by the Marine Corps, Department of the Navy, and is available for use by all Departments and Agencies
2、 of the Department of Defense. 1. SCOPE 1.1 This specification covers one type diesel engine powered, pneumatic tired, full revolving, hydraulically operated 7-1/2-ton capacity crane, with attachments. 2. APPLICABLE DOCUMENTS *21. The following documents of the issue in effect on date of invita- tio
3、n for bids or request for proposal, form a part of this specification to the extent specified herein. SPECIFICATIONS FEDERAL TT-E - 529 W -F - 800 MILITARY MIL-V-173 MIL -P - 5 14 MIL-T-704 MIL-C-1283 MIL-L-2104 - Enamel, Alkyd, Semi-gloss. - Fuel Oil, Diesel. - Varnish, Moisture and Fungus Resistan
4、t (for Treatment of Communications, Electronic, and Associated Equipment). Marking, Blank. - Plate, Identification, Instruction and - Treatment and Painting of Materiel. - Can, Gasoline, Military, 5-gallon. - Lubricating Oil, Internal-Combustion Engine, Heavy-Duty . Beneficial comments (recommendati
5、ons, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Commandant of the Marine Corps, Headquarters Marine Corps, Code LMO-1, Washington; D.C. 20380 by using the self-addressed Standard- ization Document Improvement Proposal (DD Form
6、1426) appearing at the end of this document or by letter. A t FSC 3810 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-3580 MIL - T - 5 6 2 4 MIL-H-13531 MIL-Mu43719 MIL - G 4 6 7 9 5 MIL-E- 5279 8 STANDARDS FEDERAL - Cranes, and Crane-Shovels,
7、 Truck, Crawler, and Wheel Mounted, Full-Revolving, and Their Attachments, Packaging of. - Turbine Fuel, Aviation, Grades JP-4 and - Hose, Rubber and Hose Assembly, Rubber - Marking Materials and Markers, Adhesive, JP-5, (Hydraulic, Flexible), Elastomeric, Pigmented, General Specification For. - Gen
8、erator System, Alternator, Rectifier, 60 Amperes, 28 volts. - Enamel, Alkyd, Camouflage. FED - STD - 59 5 - Colors, MILITARY MIL - STD - 1 29 MIL -STD - 1 30 MIL-STD-209 MIL- STD - 46 1 MIL-STD- 46 Z MIL-STD-642 MS - 35000 MS- 51064 MS - 5 1 1 17 MS-75058 - Marking for Shipment and Storage. - Identi
9、fication Marking of U.S, Military - Slinging and Tiedown Provisions for - Electromagnetic Interference Characteristics - Electromagnetic Interference Characteristies, - Identification Marking of Combat and - Battery, Storage, Lead-Acid, Waterproof. - Pulley Groove, Engine Accessory Drive Belts, - Pi
10、ntle Assembly, Towing - 100,000 lbs. - Receptacle; Connector: Electric. Property, Lifting and Tying Down Military Equipment, Requirements for Equipment, Measurement of. Tactical Transport Vehicles. Capacity, Manual Release. (Copies of specifications and standards required by suppliers in connection
11、with specific procurement functions should be obtained from the proeuring activity or as directed by the contracting officer.) *2,2 Other publications, The following documents form a part of this specification to the extent specified herein, the issue in effect on date of invitation for bids or requ
12、est for proposal shall apply. Unless otherwise indicated, Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-28775A 38 m 7777706 0215573 7 m DEPARTMENT OF TRANSPORTATION (DOT) Motor Carrier Safety Regulations. (Application for copies should be add
13、ressed to Superintendent of Documents , Government Printing Office, Wasington, D.C. 20402.) AMERICAN SOCIETY OF MECHANLCAL ENGINEERS Boiler and Pressure Vessel Code - Section IX. (Application for copies should be addressed to the American Society of Mechanical Engineers, 345 East 47th Street, New Yo
14、rk 10017.) AMERICAN WELDING SOCIETY Codes Standards Specifications - Standard Qualification Procedure (Application for copies should be addressed to the American Welding Society, 345 East 47th Street, New York, New York 10017.) NATIONAL MOTOR FREIGHT TRAFFIC ASSOCIATION, INC. (NMFTA) National Motor
15、Freight Classification Rules, (Application for copies should be addressed to the American Trucking Association, 1616 P Street, N. W. , Washington, D.C. 20036;) POWER CRANE AND SHOVEL ASSOCIATION (PCSA) Standard No. 2 - Mobile Hydraulic Crane Standards. (Application for copies should be addressed to
16、the Power Crane and Shovel Association, Marine Plaza, Suite 1700, 111 E. Wisconsin Avenue, Milwaukee, Wisconsin 53202.) SOCIETY OF AUTOMOTIVE ENGINEERS, INC. (SAI31 5542 - Starting Motors. 5544 - Starting-Motor and Generator Curves. 5765 - Crane Load Stability Test Code. J931 5959 - Hydraulic Power
17、Circuit Filtration, - Standard for Lifting Crane, Wire-Rope Strength Factors, (Application for copies should be addressed to the Society of Automotive Engineers, Inc. , Two Pennsylvania Plaza, New York; New York 10001. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without li
18、cense from IHS-,-,-MIL-CI 28995A(MC UNIFORM CLASSIFICATION COMMITTEE (UCC) Uniform Freight Classification Rules, (Application for copies should be addressed to the Uniform Classifica- tion Committee, 202 Union Station, 516 West Jackson Boulevard, Chicago, Illinois 60606,) TIRE AND RIM ASSOCIATION, I
19、NC. Tire and Rim Association Year Book, with Military Supplements (Application for copies should be addressed to the Tire and Rim Association, Inc., Command Building, 34 North Hawkins Avenue, Akron, Ohio 44315,) Technical society and technical association specifications and standards are generally a
20、vailable for reference from libraries. distributed among technical groups and using Federal agencies. They are also d. REQUIREMENTS *3.1 First article. which will be identical to the product which the supplier will subse- quently produce in fulfillment of the contract. As soon as practicable after a
21、ward of contract or order and prior to submission of any complete units for final acceptance, one first article shall be tested under the direction and supervision of the Government inspector to determine conformance to this specification, specified herein. Approval of the first article by the activ
22、ity concerned shall not relieve the contractor of his obligation to supply equipment conforming to this specification. Any changes or deviations of production units from the first article shall be subject to the approval of the contracting officer. The first article is defined as a production model
23、The first article shall be tested as 3.2 Materials. Materials shall be as specified herein. Materials not definitely specified shall be of the same quality used for this purpose in commercial practice, free from all defects which affect serviceability and appearance of the finished product, 3*2.1 Fu
24、npus resistance. Electrical connections, including terminal and circuit connections, components and circuit: elements shall be coated with varnish conforming to MIL-V-173 except that: (a) Components and elements inherently inert to fungi or hermetically sealed need not be treated, (b) Components and
25、 elements whose operation will be adversely affected by the application of varnish shall not be treated, Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-28995A 38 m 9799906 0235575 2 m 3.3 Design. The crane shall consist essentially of a 4-whee
26、l drive, 4-wheel steer, pneumatic-tired, diesel-engine powered carrier. The carrier shall be equipped with a center-mounted, full revolving boom support, a full hydraulically powered telescoping boom of not lesS.than 36 feet (ft) extended length, and capable of a reach of not less than a 36-ft radiu
27、s at zero elevation. *3.3.1 Carrier. The carrier shall consist of a welded, riveted, bolted (or combination thereof) fabricated steel frame with necessary braces and reinforcements to provide rigid support under all operating conditions, and incorporating axle housings, mounts, and a boom support sw
28、ing-circle base. The frame, with rear-end pintle hook, shall be mounted on four pneumatic tired interchangeable wheels, The carrier shall be capable of four-wheel drive with two-wheel steer on the front axle, and with four- wheel coordinated and crab steer available at the selection of the operator.
29、 21 degrees. All wheels shall be equipped with interchangeable pneumatic tires. The carrier shall be capable, with complete unit in travel position, of traveling over rough and unpaved terrain, sandy beaches and shallow water beaches under adverse conditions as encountered in normal combat field ope
30、rations, and over paved roads at maximum speed with the capability of negotiating a grade up to 30 percent at not less than 3.0 miles per hour (mi/h). wheels and full hydraulic independently controlled steering for the rear wheels shall be provided. The carrier shall be equipped with wheel fenders.
31、The angles of approach and departure shall be not less than Full hydraulic steering for the front 3.3.2 Crane assembly. The crane assembly, designed for carrier mounting, shall consist of a fully revolving base with pedestal-type boom support, a sectional extendible boom, wire rope not less than 1/2
32、 inch in diameter, hook block, and necessary operating machinery 3.3.2.1 Boom support. The boom support and base shall be mounted on the carrier to insure full 360 working range and shall be designed to withstand the forces caused by lifting, swinging, and traveling with the safe loads. The boom sup
33、port shall provide stable retention of the boom in all positions and, with its base, shall rotate on ball thrust or tapered rollerbearings of sufficient number, size, and capacity to support working loads. Counterweight shall be mounted on the boom support to provide constant counterbalance to the b
34、oom and load. *3.3.2.2 Boom. The boom shall be alloy steel, of the hydraulically- operated telescoping type, consisting of a base section and sliding section(s) to reach a boom radius of not less than 36 ft. The boom tail swing shall not project more than 23 inches beyond the front and 9 inches beyo
35、nd the rear end of the carrier at any position of the counterweight when swinging, The extension, retraction, and elevation of the boom shall be accomplished by hydraulic controls. A boom angl-e indicator of the pendulum type shall be provided. of the horizontal plane and shall be clearly visible to
36、 the operator. The pointer shall indicate the angle 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-3.3.2.3 Drum. A cable-hoist drum, with wire rope of not less than 1/2 inch in diameter, shall be mounted at the base of the boom or on the boom supp
37、ort to facilitate crane operations. The hoist drum shall be actuated by a hydraulic motor controlled from the operators station. This assembly shall include a motor, a drum, and self-locking gearing or self-energizing brake mechanism. and shall be waterproof for outdoor operation. *3,3*2;4 The winch
38、 shall not be free wheeling, w, The load hoist rope shall be not less than 1/2 inch in diameter, of not less than 6 by 19 improved plow steel, uncoated, preformed, independent wire rope center, and shall have a safety factor of not less than 3.5 conforming to SAE 5959. *3.3.2,5 Hook block, The runni
39、ng block and hook shall have a rated capacity of not less than 15,000 pounds and shall have adequate weight, or a positive mechanical hydraulically actuated linkage, to insure payout o the cable without load on the hook when the hook is in any position. The hook shall be a swivel type, designed to h
40、andle at least 4.5 times the maximum safe load without permanent deformation, and shall include a safety latch on the hook, Block assembly shall provide for attachment of hoist cable for not less than two-part purchase. Means shall be provided to prevent: wedging or binding of the unloaded hook bloc
41、k when at boom end. “33.2.6 Sheaves. All sheaves shall have a pitch diameter at least 18 times the rope diameter, Sheaves shall be adequately guarded to prevent the wire rope from leaving the sheave during all operations. *3,3,3 Enpine, The crane shall be equipped with a single Detroit Diesel Alliso
42、n engine of the 53N or 71N Series. The engine and engine accessories Bill of Material shall be subject to the approval of the procuring activity. The engine horsepower, torque and speed character- istics shall be sufficient to meet the performance requirements specified herein. The crane manufacture
43、r shall furnish the contracting officer with a copy of the engine manufacturers certification that the engine supplied is approved for the crane required under this specification. The engine in the crane application shall be capable of starting and operating in ambient temperatures from -200F to +12
44、5F. shall be capable of meeting the performance requirements using jet fuel eonforming to MIL-T-5624, grade JP-5, as well as diesel fuel conforming to VV-F-800. The engine accessories and instruments shall be as 01 lows : The engine (a) A protective relay to protect the charging system when the batt
45、eries are incorrectly connected.or incorrect polarity is induced by slave jumper cables. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C- 28995A(MC) (b) An instrument panel complete with a lubricating oil pressure gage, a fuel oil pressure warn
46、ing light or gage, a cooling liquid- temperature indicator, a battery charge and discharge rate indicator, an hourmeter, an air pressure gage, a transmission temperature gage and a transmission pressure gage. (c) A fuel tank with sufficient capacity for 8 hours normal operation. (d) A 24-volt (VI ne
47、gative ground electric cranking system with starting motor mounting flange conforming to type 3 of SAE 5542. Minimum performance shall be 24-V heavy duty conforming to Figure 1 of SAE 5544. The system shall have an interlock or other means to prevent energizing the starter motor, except when the dir
48、ectional control lever is in the neutral position. (e) Batteries, 6TN, in accordance with MS35000-3, of sufficient quantity to insure positive engine cranking at -200F. be furnished charged and dry; electrolyte is not to be provided. Batteries shalI (f) A charging alternator with a capacity rating o
49、f not less than 60 amperes conforming to MIL-G-46795. accordance with MS51064. Pulley design shall be in (g) A cooling-liquid high temperature safety device of the warning type (h) A lubricating oil safety device. (i) A fuel oil level gage. (j An engine housing designed to facilitate the maintenance of engine. (k) A slave receptacle in accordance with Drawing No. MS75058. (1) An audible warning device to indicate low air pressure. (m) A cold weather starting aid
