1、I ITARY SPEC1 F ICAT I MIL-T-43124C SUPERSEDING MIL-T-43124B 16 March 1973 28 September 1981, w ;:TRUCK, HAND, PLATFORM, LAUNDRY AND DRYCLEANING, SPECIAL DESIGN This specification is approved for use by all Departments and Agencies of the Department of Defense, 1. SCOPE 1.1 Scope. This document cove
2、rs hand platform trucks of magnesium or aluminum construction and rated at 2000-pounds capacity. Running gear consists of two rigid casters and two swivel casters. 1.2 Classification. Hand platform trucks shall be of the following types as specified (see 6.2). Type I - Shipping Type 11.- Receiving 2
3、. APPLICABLE DOCUMENTS 2.1 Government documents. Unless otherwise specified, the following documents of the issue in effect on date of invitation for bids or request proposal, form a part of this document to the extent specified herein. for Jf Beneficial comments (recommendations, additions, deletio
4、ns) and any pertinent data which may be of use in improving this document should be addressed to: U.S. Army Natick Research and Development Center, Natick, MA 01760-5014 by using the self-addressed Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or
5、by letter. 9c FSC 3510 THIS DOCUMENT CONTAINS -q- PAGES . Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-4 I SPECIFICATIONS i FEDERAL FF-C-88 - Caster, Rigid and Swivel, Industrial, Heavy-Duty QQ-S-781 - Strapping, Steel and Seals PPP-B-636 - Boxes
6、, Shipping , Fiberboard MIL I TARY MIL-C-52950 - Crates, Wood, Open and Covered STANDARDS FEDERAL FED-STD-601 - Rubber: Sampling and Testing MILITARY MIL-STD-105 - Sampling Procedures and Tables for Inspection by MIL-STD-129 - Marking for Shipment and Storage MIL-STD-130 - Identification Marking of
7、US Military Property Attributes 2: (Copies of documents required by manufacturers in connection with specific acquisition functions should be obtained from the contracting activity or as directed by the contracting officer.) c: 2.2 Other publications. Unless otherwise specified, the following docume
8、nts of the issue in effect on date of invitation for bids or request for proposal, form a part of this document to the extent specified herein. *AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) D 2287 - Nonrigid Vinyl Chloride Polymer and Copolymer Molding and Extrusion Compounds D 3951 - Standard
9、Practice for Commercial Packaging (Application for copies should be addressed to the American Society for Testing and Materials, 1916 Race Street, Philadelphia, PA 19103.) (Technical society and technical association documents are generally available for reference from libraries. They are also distr
10、ibuted among technical groups and using Federal agencies.) * 2.3 Order of precedence. In the event of a conflict between the text of this document and the references cited herein, the text of this document shall take precedence. 2 Provided by IHSNot for ResaleNo reproduction or networking permitted
11、without license from IHS-,-,-MIL-T-4312YC 35 m 99999Ob 0248b33 1 MIL-T-43124C 3. REQUIREMENTS * 3.1 First article. When specified, a sample shall be subjected to first article inspection (see 4.3, 6.2, and 6.3). e * 3.2 Material. The materials and components shall be as specified herein. Materials a
12、nd components not definitely specified shall be of the quality normally used by the manufacturer provided the completed item complies with all the provisions of this document. 3.2.1 Bumpers. * 3.2.1.1 Bumper, rubber. The rubber bumper shall be molded from commercial Rubber bumpers shall be considere
13、d nonmarking type nonmarking gray rubber compound having a Shore A Durometer hardness reading of 70 plus or minus 5. if only a slight mark is made on white bond paper which can be easily rubbed off with dry fingers. The rubber bumper shall be reinforced by a steel insert. Testing shall be as specifi
14、ed in 4.4.2. 7; 3.2.1.2 Bumper, vinyl. The vinyl bumper shall be in accordance with type I, grade 15 of ASTM D 2287. 3.2.2 Casters. Casters shall conform to Group A, type I and II, class 4, style 2 of FF-C-88. The wheel diameter shall be not less than 8 inches. . 3.2.3 Fastening devices. Fastening d
15、evices such as bolts, nuts, and lockwashers shall be fabricated from steel and shall be plated in accordance with commercial practice. 3.2.4 Rivets. Rivets shall be fabricated from aluminum alloy. 3.3 Design and construction. :k 3.3.1 Type I truck. The type I truck shall consist of a deck assembly w
16、ith push bar sockets, caster mounting plates, two rigid casters, two swivel casters, bumper assembly, and a push handle. The type I truck capacity and physical dimensions shall be as specified in table I. (. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from
17、IHS-,-,-MIL-T-43124C TABLE I. Truck capacity and physical dimensions Dimens ions (inches) Rated capacity Leng th Width Height Platform (pounds, minimum) (overall) (overall) (overall) (height) Type 1 2000 60-6 1 42-43 39-39 12-14 Type II 2000 72-73 48-49 63-641/ 12-14 - l/ A maximum height of 71 inch
18、es is permissible on one end when used as a pushbar I 3.3.1.1 Deck assembly. The frame and deck may be fabricated from one sheet with edges turned down and inward to form a channel frame and deck; or may be of one sheet (deck) assembled to a frame of extruded or formed channels (frame), or the deck
19、may be of sectionalized construction consisting of sections in the form of extruded planks and shall interlock together to form a smooth deck which in turn shall be assembled to extruded shapes forming the frame. The corners of the deck and frame shall be formed to accept the push bar sockets specif
20、ied in 3.3.1.2. reinforced and shall be of all magnesium alloy or aluminum alloy fabrication. The complete assembly, including sockets, shall form a rigid structure. The deck surface, using planks, shall be smooth with joint spacings no greater than 1/32 inch. The frame and deck shall be properly 3.
21、3.1.2 Sockets. Sockets for push bar legs shall be fabricated from magnesium alloy or aluminum alloy of cast or formed construction. Sockets shall be permanently affixed, one each, at each corner of the deck to form round corners. The top surface of the socket and deck shall be flush. The socket shal
22、l act as a stop and as a rigid support for the push bar leg. The socket hole shall be between 0.020 to 0.070 inches larger than the outside diameter of the push bar leg. Center-line span of each pair of socket holes shail not vary by more than 1/4 inch. 3.3.1.3 Caster mounting plates. Caster mountin
23、g plates shall be fabricated from magnesium alloy or aluminum alloy, channel, angle or combination of construction, or they may be an integral part of the underside of the sectionalized plank deck. The caster supports shall be welded, brazed or riveted, as required to the underside of the deck. Cast
24、er supports may be of plate, 3.3.1.4 Bar, push. The push bar shall be fabricated of magnesium or aluminum alloy tubing between 1-3/8 - 1-3/4 inches outside diameter. The push bar shall be one piece and shall be U-shaped. The bottom of each leg may have a solid insert. When assernbled to the sockets
25、(widthwise), the handle end or top portion of push bar shall extend outward between 3 -4 inches toward the operator. The push bar shall be removable. 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-3.3.1.5 Running gear. Running gear shall consist o
26、f two rigid casters and two swivel casters and shall be as specified in 3.2.2. The casters shall be bolted to the caster mounting plates by fasteners specified in 3.2.3. The casters shall be positioned so that with rated load equally distributed over the entire deck surface, the load division for ea
27、ch caster shall be equal to within plus or minus twenty-five (25) pounds. 3.3.1.6 Bumper assembly. Bumper assembly may consist of bumper frame supports, bumper frame and bumper. Bumper frame supports may be brackts or spacers (of magnesium or aluminum alloy) welded to and extending out from the truc
28、k frame or they may be extensions of the truck frame reinforcing members (see 3.3.1.1). Bumper frame may be rigidly fastened to the bumper frame supports or to the truck frame and shall encircle the truck frame. frame shall be fabricated of magnesium or aluminum alloy channel, Bumper shall be contin
29、uous and of material specified in 3.2.1. completely encircle the bumper frame and shall be securely affixed to the bumper frame by means of fasteners specified in 3.2.3, or 3.2.4. Bumpers shall be capable of being removed and replaced. beyond the truck frame no more than 4 inches. The bumper Bumper
30、shall Bumper shall extend outward 3.3.2 Type II truck. Type II truck shall consist of a deck assembly, bumper assembly, caster mounting plates, two rigid casters and two swivel casters, superstructure and sockets for mounting the superstructure. Capacity and physical dimensions of truck shall be as
31、specified in table I. .i 3.3.2.1 Type II, deck assembly. The type II, deck assembly shall be as specified in 3.3.1.1. 9; 3.3.2.2 Type II, sockets. The type II, sockets shall be fabricated from magnesium alloy or aluminum alloy of cast, formed, tube, or extruded construction. Sockets shall be welded,
32、 to the truck deck to receive the rack. Sockets shall rigidly support the superstructure. k 3.3.2.3 Type II, superstructure. The type II, superstructure shall consist of removable racks. The racks shall be rectangular in configuration with a “U“ shaped outer member and vertical rungs spaced no more
33、than 4-1/2 inches apart between the “U“ shaped member and a horizontal lower member. The horizontal lower member shall be located to provide legs on the end of the “U“ shape member with sufficient clearance when the rack is mounted in the sockets. The end racks and the racks for one side when mounte
34、d shall have a height of not less than 63 and not more than 64 inches above the floor. The racks for the other side when mounted shall have a height of not less than 37 inches above the floor. The rack shall be made of round or square magnesium or aluminum alloy tubing. The legs of the racks may be
35、filled with a solid metal filler for rigidity. When mounted in the sockets the top of the racks shall not sway more than 3/4 of an inch from a plumb line when tested in accordance with 4.5.1. 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-43
36、124C sf 3.3.2.4 Type II, bumper assembly. The type II, bumper assembly shall be as specified in 3.3.1.6. f: 3.3.2.5 Type II, caster mounting plates. The type II, caster mounting plates shall be fabricated from magnesium alloy of angle, channel or combination thereof. The caster mounting plates shall
37、 be permanently secured to the underside of the deck. 2: 3.3.2.6 Type II, running gear. The type II, running gear shall be as specified in 3.3.1.5. 3.4 Performance. fr 3.4.1 Static overload. Both type trucks shall be capable of carrying a static load equal io 200 percent of the rated capacity of the
38、 truck with load equally distributed over the entire deck top surface without any evidence of permanent deformation, weld failure, rivet failure or failure to any part of the truck. The truck shall be tested as specified in 4.5.2 to determine conformance with the above requirement. Q 3.4.2 Shock and
39、 impact load. Both type trucks shall be capable of withstanding shock loads consisting of 1-inch step drops and impact loads against a rigid hard wall when carrying an equally distributed load on the deck top surface equal to 125 percent of rated truck capacity and when traveling at a speed of 2 mph
40、, minimum, without any evidence of permanent deformation, weld failure, rivet failure, bolt connection failure, or loosening of rubber bumper from frame. The truck shall be tested as specified in 4.5.3 and 4.5.4 to determine conformance with the above requirements. 9 3.4.3 Rolling resistance. Truck,
41、 with rated load distributed equally over the entire deck top surface, shall be capable of being towed with a force not exceeding 2 percent of the gross weight of the truck. Gross weight shall include the weight of the rated load and truck proper. The truck shall be tested as specified in 4.5.5 to d
42、etermine conformance with the above requirement. f: 3.4.4 Push bar and sockets strength. The push bar, including sockets, shall be capable of withstanding without failure and permanent deformation, a minimum horizontal force of 150 lbs. applied at midpoint of the handle end of the push bar. This req
43、uirement shall be determined by the test specified in 4.5.6, 3.5 Finish. Unless otherwise specified (see 6.2), magnesium or aluminum alloy surfaces of the truck shall have a clean, natural finish. 3.6 Marking for identification. Marking for identification shall be in accordance with MIL-STD-130. 6 P
44、rovided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-43124C 3.7 Workmanship. The truck shall be clean and properly assembled. Burrs and sharp edges shall be removed. No parts shall be damaged or impaired. 3.7.1 Welding. Surfaces to be welded shall be
45、 free of all surface contamination such as dirt, paint, oily matter and heavy deposits of oxide, Welded joints shall be sound, and shall not have burn holes, cracks, fractures or pits, fissures, flux deposited and shall be thoroughly fused to the base metal. * 3.7.2 Riveting. Rivet holes shall be ac
46、curately made and shall have all burrs and fins from adjacent edges removed. Rivet heads shall be full, neatly made, concentric with rivet holes and in full contact with the surface of the members. Excessive upsetting of rivets to fill holes shall not be acceptable. * 3.7.3 Bolting. Boltholes shall
47、be accurately made and adjacent edges shall have no burrs or fins to interfere with proper seating of boltheads or nuts. Bolts and nuts shall be drawn tightly against lockwashers. 9 3.7.4 Castings. Castings shall be free from blowholes, porosity, hard spots, shrinkage or cracks. The finish of the ca
48、sting shall permit marking. 4. QUALITY ASSURANCE PROVISIONS 9; 4.1 Responsibility for inspection, Unless otherwise specified in the contract or purchase order, the contractor is responsible for the performance of all inspecticn requirements as specified herein. Except as otherwise specified in the c
49、ontract or purchase order, the contractor may use his own or any other facilities suitable for the performance of the inspection requirements specified herein, unless disapproved by the Government, The Government reserves the right to perform any of the inspections set forth in the document where such inspections are deemed necessary to assure supplies and services conform to prescribed requirements. 9 4.2 Classification of inspection. The inspection r
