1、A-A-50478B II 9999974 O362370 455 II A-A-50478B January 21. 1994 SUPERSEDING October 25, 1989 A-A-50478A COMMERCIAL ITEM DESCRIPTION POLISHER, FLOOR, ELECTRIC, CONCENTRATED WEIGHT SINGLE BRUSH (COMMERCIAL TYPE) This Commercial Item Description (CID) is approved by the Commissioner, Federal Supply Se
2、rvice, General Services Administration, for the use of all Federal agencies. Abstract. This CID covers commercial type electric floor polishers that are used for heavy-duty wet or dry scrubbing, for polishing and buffing wood and tile or linoleum covered floors, and for rug shampooing. Salient chara
3、cteristics. 1. a fully functional product. operating handle, wheels, scrubbing and polishing brushes, pads, bumper, and motor. operation. while operating without a load. DescriDtion. The polisher shall include all components necessary to ensure The main component shall consist of a frame, The weight
4、 of the polisher shall rest directly on the brush during The brush speed shall not exceed 250 revolutions per minute (rpm) 2. Desian and construction. The dimensions for the polisher shall be as specified in table I. All dimensions are given in metric units; tolerances shall be +3 percent. The weigh
5、t of the polisher in table I shall include one brush. I Beneficial comments (recommendations, additions, deletions) and any pertinent I Idata which may be of use in improving this document should be addressed to: I ICommanding Officer (Code 156), Naval Construction Battalion Center, I Il000 23rd Ave
6、nue. Port Hueneme, CA 93043-4301. I FSC 7910 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-5047B = 9999974 0162171 391 = A-A-50478B 3. Duty stvle. Style 1 or 2 sh
7、all be furnished as specified. Stvle 1. Commercial duty. Sizes shall be as specified in table I. Stvle 2. Hospital duty. Sizes shall be as specified in table I, plus special motor which shall be fully enclosed and cooled by convection. currents which could possibly contain contaminated material shal
8、l be utilized in cooling internal inaccessible mechanisms of motor or other components. No air TABLE I. Stvles 1 and 2 machines, Dolishine and scrubbing electric, concentrated weipht. sinele-brush. I S Overall Area of Continuous Weight of Wheel I I I diameter polishing rating of machine diameter I I
9、 Z of brush brush motor I IE fiber fiber I I (min) (min) (min) (min) (min) I I I I - mm - mmz watt h mmI I 260 45 O00 190 18 62 I I 310 65 O00 250 23 62 I I1 12 360 90 O00 375 27 90 I 430 130 O00 560 34 90 I 13 14 15 480 155 O00 750 46 115 I 16 530 195 O00 750 48 125 I 17 550 210 O00 750 56 125 I I
10、I 4. constructed and reinforced to withstand rigorous heavy-duty service. polisher structure shall include a brush cover made of metal or durable plastic. The cover shall extend outward and down in a form of an apron covering the entire back of the brush. Frame. The frame enclosing the operating mec
11、hanism shall be durably The 5. ODeratinn handle. The operating handle shall include a metal handle tube and a metal handle bar with nonmetallic handgrips. The power switch shall be incorporated into the handle in such a manner that it shall be grasped by at least one hand for operation. the upright
12、position to facilitate storage of the polisher. handle shall provide for the positioning and locking of the handle in different working positions between 45 and 60 degree angles as measured from the floor plane. Means shall be provided for locking the handle in The design of the 6. Brushes. two scru
13、bbing brushes. solid. The diameter of the brushes shall conform to table I. The machine shall be so constructed that brushes may be replaced without the use of special tools. Each polisher shall be furnished with three polishing brushes and Brushes shall be sectional and may be laminated or 7. Polis
14、hing brushes. The sectional polishing brushes shall have a suitable reusable metal or plastic plate securely attached to it. free length of not less than 38 mm when measured at right angles to the The tufts shall have a 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without l
15、icense from IHS-,-,-A-A-50478B I 9999974 0162372 228 I A-A-50478B surface of the brush block. percent, 25 percent tampico and 40 percent 25 percent palmyra; or 100 percent crimped polyethylene filaments of 40 mm minimum diameter. The polishing brush fibers shall be made of 60 8. Scrubbing brushes. S
16、crubbing brushes shall have a heavy reusable metal or plastic back and shall have filler composed of 100 percent palmetto or 100 percent bassine fiber. the face. The filler shall plate when measured at right angles to 9. Bumper. A replaceable rubber or vinyl bumper of not less than 20 mm in vertical
17、 direction shall be securely attached around the portion of the motor housing and the brush housing. which it comes in contact. The bumper shall not dent or mark objects with 10. Wheels and mounting. Unless otherwise specified, each machine shall have two wheels of the minimum diameter specified by
18、table I. The wheels shall be so mounted that they either move off of the floor so that the machine can be used, or shall be so positioned that when the machine is in its operating position the wheels do not contact the floor. surface of non-marking resilient material, The wheels shall be composed of
19、 a running 11. Electrical characteristics. Unless otherwise specified, the polisher shall be designed to operate on 120 volts, alternating current, 60 Hertz, single phase. All wiring, cord, plug, and grounding shall be in accordance with UL 561. A 3-conductor cord of not less than 15 meters shall be
20、 provided. Polisher shall have a quick break switch for starting and stopping the motor. The switch shall automatically open the motor circuit the moment the operator releases the handle of the machine. The grounding conductor in the cable assembly shall form a continuous conductor path from the poi
21、nt of attachment on the motor housing to the wall receptacle when the machine is connected and ready for operation. The resistance in ohms from the motor frame to the ground connection on the plug end of the 15-meter cord shall be less than 1 ohm. The grounding path shall not incorporate any movable
22、 joints. 12. Manual. The contractor shall furnish its standard manual of operation with each machine. This manual shall as a minimum provide detailed instructions for the proper operation and maintenance of the machine and a list of service parts available for the polisher. 13. Standards compliance.
23、 The polishers shall conform to the floor-finishing machine requirements of UL 561. The data plate or listing with re-examination of the Underwriter Laboratories, Inc. may be accepted as evidence that the polishers conform to this requirement. In lieu of the label or listing, the contractor may subm
24、it independent proof, satisfactory to the contracting agency, that the polisher conforms to the applicable requirements of the published standard, including methods of tests of UL 561. 14. Workmanship. accordance with manufacturers standard practices. The polisher shall be free from fractures, split
25、s, punctures, tears, dents, creases, bows, miscasts, malformation or deterioration. The finish applied shall be continuous, smooth, adherent and free from imbedded foreign matter. Painted surfaces and parts shall contain no sags, runs, drips, creeds, laps, bubbles or streaks. All parts, components,
26、and surfaces shall be clean with no trace of grease, flux, or The polisher shall be completely assembled and finished in O 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-5047B m 9999974 Olb2L73 Lb4 , A-A-50478B J e other contaminants. vibratio
27、ns, overheating of the motor and any leakage of lubricants. Replacement of the brushes and pads shall be made without the use of special tools. The polisher shall polish or scrub an area uniformly in size and continuity with good proximity of brush contact up to a vertical surface. The polisher shal
28、l operate quietly and be free from Quality assurance provisions. 1. Responsibility for insDection. Unless otherwise specified in the contract, the contractor is responsible for the performance of all inspection requirements as specified herein. Except as otherwise specified in the contract, the cont
29、ractor may use his om or any other facilities suitable for the performance of the inspection requirements specified herein, unless disapproved by the Government. 2. ResDonsibilitv for comDliance. The inspection requirements specified herein are classified as first article inspection and quality conf
30、ormance inspection. 3. First article insDection. The first article inspection shall be performed on one polisher when a first article is specified in the contract or order. inspection shall include examination and operational tests as specified herein. The 4. Quality conformance inspection. The qual
31、ity conformance inspection shall be performed on the sample polisher selected in accordance with the inspection lot and sampling requirements. This inspection shall include examination and operational tests as specified herein. 5. Government at one time shall be considered a lot for purposes of insp
32、ection. InsDection lot. All units of the same style and size offered to the 6. Sampling. A random sample of polisher(s) shall be selected from each lot in accordance with MIL-STD-105. The sample unit shall be one complete polisher. 7. Examination. Each sample selected in accordance with the inspecti
33、on lot, sampling requirements, and also the first article shall be examined for compliance with the salient characteristics requirements specified herein. element of inspection shall encompass all visual examinations and dimensional measurements. or more defects listed below, shall constitute cause
34、for rejection. I This Noncompliance with any specified requirement or presence of one Defects - No evidence of compliance with UL 561 standard. - Unit style and size not as specified. - Unit not in conformance with specified electrical requirements. - Unit weight not as specified. - Unit frame, hand
35、le, wheels, bumper not as specified. - Brushes not as specified. - Dimensions not as specified. - Unit motor power rating not as specified. - Name/data plate missing, not permanently attached or contains wrong, - Parts and accessories not as specified. - incomplete, or illegible data not in complian
36、ce with UL 561. Unit workmanship not conforming to the requirements of the CID. 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-5047B W 9999974 Olb2L74 OTO m A-A-50478B 8. ODerational test. The polisher shall be equipped with a polishing brush
37、or brushes specified herein, and shall be operated for 2 hours on a waxed linoleum floor or a steel plate. The machine shall be operated at full rated voltage. Unless otherwise specified, only one polisher per contract need be tested for the full 2 hours, all other polishers require an operational t
38、est for 15 minutes. During and after the 2-hour or 15-minute operation, the polisher shall be observed and examined for the following: a. b. Overheating of motor. c. d. e. Uniformity, continuity, size of polishing area and proximity of brush f. Quietness of operation and freedom from vibration. Lubr
39、ication and leakage of lubricant. Replacement of brush without the use of special tools. contact up to a vertical surface. Resistance in ohms from the motor frame to ground connection on the plug end of the 15 meter cord is less than 1 ohm. Contractor certification. substantiating evidence that the
40、product offered meets the salient characteristics of this CID and that the product conforms to the producers own drawings, specifications, standards, and quality assurance practices. The Government reserves the right to require proof of such conformance prior to first delivery and thereafter as may
41、be otherwise provided for under the provisions of the contract. The contractor shall certify and maintain Inch-Dound DrOductS. Products manufactured to inch-pound dimensions will be considered on an equal basis with those manufactured using metric units, provided they fall within +3 percent of the c
42、onversion tables contained in the latest revision of ASTM E380, and all other requirements of this CID are met. a If a product is manufactured to inch-pound dimensions and those dimensions exceed the tolerances specified in the metric units, a request should be made to the contracting officer to det
43、ermine if the product is acceptable. contracting officer has the option of accepting or rejecting the product. The Regulatorv reauirements. The offeror/contractor is encouraged to use recovered materials in accordance with Public Law 94-580 to the maximum extent practicable. Preservation. Dacking. a
44、nd marking. Unless otherwise specified in the contract or order, the preservation, packing, and marking shall be in accordance with ASTM D3951. Notes. Acquisition activity should specify or initiate the following: 1. The title, number, and date of this commercial item description. 2. The style and s
45、ize desired. 3. The electrical characteristics required if other than as specified. 4. The wheel size required if other than specified. 5. When the operational test is not as specified. 6. When a first article test and inspection is required. 7. 8. When preservation, packing, and marking is other th
46、an as specified. When the contractor is not responsible for inspection and testing. a 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-50478B Part numbering;. CID based part identification numbers. The following part identification numbering (PI
47、N) procedure is for Government purposes and does not constitute a requirement for the contractor. A-50478-X-X I I II III III III III III III III III II II II I Size designator code 1 - Size 1 Size designator code 2 = Size 2 Size designator code 3 = Size 3 Size designator code 4 = Size 4 Size designa
48、tor code 5 = Size 5 Size designator code 6 = Size 6 Size designator code 7 - Size 7 Style designator code A = Style 1 Style designator code B - Style 2 CID Number Designates a commercial item description The style of polisher is identified by a single alpha code character (see table 11). Table II. S
49、tyle of Doisher. I I I I Style I Style Designator Code I I l I I I 1 I A I I I I 2 I B I I I I The size of polisher is identified by a single numerical code character (see table III). Table III. Size of Polisher. I I I I Size I Size Designator Code I I 1 I 2 I 3 I 4 I 5 I 6 I 7 I I 1 I 2 I 3 I 4 I 5 I 6 I 7 I I I I The following national stock numbers will use this document and are cross referenced to the new PIN codes. 6 Provided by IHSNot for ResaleNo reproduction or networking pe
