1、A-A-50476B January 21. 1994 SUPERSEDING October 24, 1989 A-A-50476A COMMERCIAL ITEM DESCRIPTION POLISHER, FLOOR, ELECTRIC, CONCENTRATED WEIGHT TWO-BRUSH (COMMERCIAL TYPE) This Commercial Item Description (CID) is approved by the Commissioner, Federal Supply Service, General Services Administration,
2、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, tile or linoleum covered floors, and for rug shampooing. Salient characteristics. 1. Description. The polisher sh
3、all include all components necessary to ensure a fully functional product. operating handle, wheels, scrubbing and polishing brushes, bumper, and motor. The weight of the polisher shall rest directly on two brushes during operation. Speed shall not exceed 325 revolutions per minute (rpm) while opera
4、ting on a linoleum floor. The main component shall consist of a frame, 2. DesiEn and construction. specified in table I. shall be +_3 percent. removeable weight. The dimensions for the polisher shall be as All dimensions are given in metric units; tolerances The weight of the polisher in table I sha
5、ll include any 3. constructed and reinforced to withstand rigorous heavy-duty service. Frame. The frame enclosing the operating mechanism shall be durably 4. ClDeratine. handle. The adjustable operating handle shall include a metal handle tube and a metal handle bar with nonmetallic handgrips. !Bene
6、ficial comments (recommendations, additions, deletions) and any pertinent1 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 Avenue, Port Hueneme. CA 93043-4301. I FSC 7910 DISTRIBUTION STA
7、TEMENT A. Approved for public release; distribution is unlimited. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-504768 m 9999974 OLb2L84 T4T m A-A-50476B 5. Brushes. Each polisher shall be furnished with one set of brushes for polishing and one
8、 set for scrubbing. Brushes shall be circular and in one piece. 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. Table I. Class B machines, Doiishing and scrubbing. electric, concentrated weight.
9、two-brush. Overall Total Continuous Weight of Wheel I I I IS of brush brush motor comp 1 e te I IZ brushes I IE (minimum) (minimum) I I I - mm - mmz watts kg mmI I I I I1 180 45 O00 375 27 to 48 76 I 12 250 87 O00 560 52 to 80 90 I diameter polishing rating of machine diameter I II fiber fiber area
10、with two (minimum) I 6. of not less than 20 millimeters (mm). Each brush shall have a suitable reusable metal plate securely attached to it. made of approximately 60 percent tampico and 40 percent well-mixed palmyra fiber. at right angles to the surface of the brush block. 7. Scrubbing brushes shall
11、 be the same as specified for polishing brushes but may have a heavy metal back and the tufts shall be made of 100 percent palmetto fiber or 100 percent bassine fiber. Polishinn brushes. The sectional polishing brushes shall have a thickness Polishing brush tufts shall be The tufts shall have a free
12、 length of not less than 38 mm when measured Scrubbing brushes. 8. vertical direction shall be securely attached around the portion of the motor housing and the brush housing. which it comes in contact. BumDer. A replaceable rubber or vinyl bumper of not less than 20 mm in The bumper shall not dent
13、or mark objects with 9. Wheels. material which will not mark or scratch the floor. the wheels shall comply with the size specified in table I. The polisher wheels shall have a running surface of resilient Unless otherwise specified, 10. Wheel mounting. and the entire weight of the machine shall rest
14、 on the brushes. The wheels shall be capable of retracting during operation 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 wi
15、th UL 561. A 3-conductor cord of not less than 15 meters shall be 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. assembly shall form a continuous
16、 conductor path from the point of attachment on the motor housing to the wall receptacle when the machine is connected and ready for operation. The grounding conductor in the cable The grounding path shall not incorporate any movable joints. 2 Provided by IHSNot for ResaleNo reproduction or networki
17、ng permitted without license from IHS-,-,-A-A-5047bB m 9999974 01b2L5 9b m A-A-50476B 12. Standards compliance. The polishers shall conform to the floor-finishing machine requirements of UL 561. The data plate or listing with re-examination of the Underwriters Laboratories may be accepted as evidenc
18、e that the polishers conform to this requirement. In lieu of the label or listing, the contractor may submit 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. Oualitv a
19、ssurance Drovisions. 1. Responsibilitv for inspection. 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 contractor may use his own or any other faciliti
20、es suitable for the performance of the inspection requirements specified herein, unless disapproved by the Government. 2. Classification of inspection. The inspection requirements specified herein are classified as first article inspection and quality conformance inspection. 3. First article inspect
21、ion. 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 quality conformance inspection shall be performe
22、d 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. Inspection lot. All units of the same class, style, and size offered to the Government at one time shall be consi
23、dered a lot for purposes of inspection. The sample unit shall be one complete polisher. 6. Each sample selected in accordance with the inspection lot, sampling requirements, and also the first article shall be examined for compliance with the salient characteristics requirements specified herein. Th
24、is element of inspection shall encompass all visual examinations and dimensional measurements. or more defects preventing or lessening maximum efficiency shall constitute cause for rejection. Examination. Noncompliance with any specified requirements or presence of one 7. The polisher shall be equip
25、ped with a polishing brush or brushes specified herein, and operated for 2 hours on a waxed linoleum floor or a steel plate. The machine shall be operated at full rated voltage. polisher per contract need be tested for the full 2 hours: all others in the inspection lots shall be operational tested f
26、or 15 minutes. During and after the 2 hour or 15 minute operation, the polisher shall be observed and examined for the following: ODerational test. Only one a. Quietness of operation and freedom from vibration. b. Overheating of motor. c. Lubrication and leakage of lubricant. d, Replacement of brush
27、 without the use of special tools. e. Provision for feeding water to the scrubbing brush. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-504768 9999974 01bZLBb 812 A-A-50476B f. Uniformity, continuity, size of polishing area and proximity of b
28、rush contact up to a vertical surface. g. 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 product offered meets the salient characteristics of this CID and that the produc
29、t 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 be otherwise provided for under the provisions of the contract. The contractor sh
30、all certify and maintain Inch-Dound DrOdUCtS. considered on an equal basis with those manufactured using metric units, provided they fall within 23 percent of the conversion tables contained in the latest revision of ASTM E 380, and all other requirements of this CID are met. Products manufactured t
31、o inch-pound dimensions will be Remlatorv requirements. materials in accordance with Public Law 94-580 to the maximum extent practicable. The offeror/contractor is encouraged to use recovered Preservation. packinn and marking. Unless otherwise specified in the contract or order, the preservation, pa
32、cking, and marking shall be in accordance with ASTM D 3951. Notes. Acquisition activity should specify the following: 1. 2. 3. 4. 5. The electrical characteristics required if other than as specified. The wheel size required if other than specified. When the contractor is not responsible for the ins
33、pection. When a first article inspection and tests are required. When preservation, packing and marking are other than as specified. UL Standards are available from the Underwriters Laboratories, Inc., 333 Pfingsten Road, Northbrook, IL 60062. ASTM Standards are available from ASTM, 1916 Race Street
34、, Philadelphia, PA 19103. MILITARY INTERESTS: CIVIL AGENCY COORDINATING ACTIVITIES: Custodians GSA - FSS Navy - YD1 Air Force - 99 Review Activities PREPARING ACTIVITY: Navy - YD1 (Project 7910-0087) Amy - MD Navy - MC Air Force - 84 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
