1、A-A-50219 49 W 9799974 0023933 b A-A-50219 20 January 1984 COMMERCIAL ITEM DESCRIPTION WHaEL, LATHE RAILWAY, DUAL END DRIVE The General Services Administration has authorized the use of this commercial item description. This Commercial Item Description covers the requirements for wheel lathe for pro
2、filing the treads of mounted wheel sets with or without mounted roller bearings, traction motors and gears Salient characteristics: Se 1 f-a 1 igning headstock Infinitely variable spindle-speed from 2.25 to 24 rpm Infinitely variable feed rates. Maindrive motor or motors shall be variable speed AC,
3、50 HP minimum. Accept wheel tread diameters from 26 to 52 inches. Two sets of compound tools slide with hydraulic feed and tracer system. Capability to trace wide and narrow flanges. Provided with hydraulic or s pringloaded centers. Provided with hydraulic pressurized jaws. Speed indicator to indica
4、te actual RPM of machine in operation. Digital component two axis, 0.001 in resolution, numbers of 3/4 inch Chuck jaws to have insert type changeable bits. Chuck jaws shall be adjustable individually both laterally and Hydraulic governor valve with control knob to vary feed rate. Four position toggl
5、e switch to control direction of feed and rapid Provided with forced lubrication. Carbide stee.1 bit inserts or equivalent. Wheel prof iles templates . Painting and finishing of the machine shall be the manufacturers standard commercial practice, Permanent metal identification plate mounted in a con
6、spicuous place and showing Manufacturers Name, Address, Contract Number, Model, Serial Number, Date of Manufacture, and Power Input Characteristics and Rating. minimum height with induction pick-up. long X tud ina 1 ly . t r ansver s e. . Design and construction, part of a compact unit conforming to
7、 the requirements listed herein. shall be designed with ready access to components for adjustments, replacement, or repair, and to facilitate Set-up, operation and maintenance without the need for special tools. All components shall be designed to form an .integral The unit MIL-STD-1472, 5.9 require
8、ments apply to design for maintain- FSC 4940 THIS DO“,UMENT CONTAINS - 3 PAGES. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-502L7 LI7 a 7777774 0023734 8 H I A-A-50 219 ability. The machine shall be complete so that when installed and connect
9、ed to the power Special tools that are required shall be provided by the contractor. source, it can be used for any operation for which it was designed. Construction shall be such that the unit will retain its performance and accuracy, and function properly when operated at its maximum functional ca
10、pacity. Materials-and workmanship. applicable for the purpose intended. Workmanship in construction and finish shall be of high quality and consistent with industry standards. The machine shall be constructed of parts which are sound in structure and free from any repair. stampings, and welded parts
11、 shall be cleaned and free from sand, dirt, fins, sprues , scale flux, and other harmful or extraneous materials. External surfaces shall be smooth and all edges shall be either rounded or beveled, except where a sharp edge is required by design. Materials shall meet ASTM specifications where All pa
12、rts shall be new and unused. CastinBs, forgings, molded parts; Essential safety features. The machine shall be fitted with suitable devices and covering or guards to provide protection from electrical shock and moving parts such as gears, belts, pulleys, and other parts which may present a . hazard.
13、 parts. his normal operating position. requirements. s ign which cautions the operator about unsafe operating practices. MIL-STD-1474, 4.3 and 5.1 shall apply. Lubrication requirements. gears, and sliding parts shall be provided with a means for lubrication. oil holes, grease fittings, and filler ca
14、ps shall be easily accessible. lubrication chart or plate shall be securely attached to the unit. shall be made of black anodized aluminum with white nomenclaturdletters or other similarly durable material and shall be permanently attached to the unit, lettering in accordance with MIL-STD-1472, 5.5.
15、 provide the following information: All guards shall be designed to provide ready access to the guarded All controls shall be within convenient reach and vision of operator in The machine shall be provided with a prominently located warning The lathe shall meet all applicable OSHA All bearings (exce
16、pt sealed-for-life type), mating All The chart A The chart or plate shall POINTS OF LUBRICATION SERVICE INTERVAL VISCOSITY TYPE OF LUBRICATION Standard Commercial Product. minimum requirements. requirements and shall be the manufacturers standard commercial product. Additional or better features whi
17、ch are not specifically prohibited by this description but which are a part of the manufacturers standard comercial product, shall be included in the lathe being furnished. A standard comercial product is a product which has been sold or is being currently offered for sale brochures, and represents
18、the latest production model. production, marketed, and in use for a minimum of one year. normal product improvements will be considered by the procuring agency upon The above salient characteristics are set forth as The lathe shall be in accordance with these minimum . on the commercial market throu
19、gh advertisements, manufacturers catalogs, or It shall have been in The introduction of Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-. A-A-50219 49 7779979 0023735 T m Custodian Amy -ME A-A-50219 written request of the vendor. or not to grant inco
20、rporation of such improvements. proof of this offering as a commercial product with his bid, officer will determine the acceptability of this proof. to furnish proof of his offering as his standard comercial product shall be cause for rejection of his bid. Acceptance. Acceptance of each lathe shall
21、be based on visual inspection and demonstration of its performance capabilities. Unless otherwise specified, the contractor is responsible for the performance of all inspection requirements. !Che Government shall completely inspect the lathe for design, construction, materials, components, electrica
22、l equipment and workmanship to determine compliance with these requirements, continuous run test with or without work at. the Governments discretion, combining all operations and all speed ranges up to maximum speed permissible. Any deviation from these requirements shall be cause for rejection. The
23、 procuring agency reserves the right to grant The bidder shall submit The contracting Failure of the bidder The lathe shall be given at least a 1 hour Packaging and marking. to overseas Department of Defense (DOD) consignees. specified for shipments to DOD consignees within the Continental United St
24、ates and to norrDOD consignees worldwide. safisfy the requirements for military packaging, it may be used. Military packaging shall be specified when shipments are Commercial packaging may be When a suppliers normal packaging will Military packaging. against physical damage and deterioration in a lo
25、gistic environment character ized by the following: Each wheel lathe shall be preserved and packed to protect 1. 2. 3. 4. 5. Comercial. suppliers normal method for retail distribution. comply with Uniform Freight Classification or National Motor Freight Classification rules. Multiple handling during
26、 transportation and intransit storage. Shock, vibration, and static loading forces during worldwide shipment by UncoEirolled warehouse storage for extended periods. Weather exposure during shipment and intransit transfers. Stacking loads during shipment and storage. all transport modes. Each wheel l
27、athe shall be packaged in accordance with the Shipping containers shall Marking. with the item nomenclature, stock or part number, quantity per pack, and contract number as a minimum; additional marking shall be as specified in the contract order. address. or an appropriate size, and of waterproof m
28、aterials. Unit, intermediate (when provided), and exterior packs shall be marked Exterior packs shall have in addition the complete consignees Markings shall be applied in a legible manner, in a contrasting color, PREPARING ACTIVITY Army - NE Project 4940-A453 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
