1、MIL-E-4LILbbA 35 M 999990b 0249279 3 M 1 l Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: U.S. Army Natick Research, Development, and Engineering Center; Natick, MA 01760-5014 by using the self
2、-addressed Standardization Document Improving Proposal (DD Form 1426) appearing at the end of this document or by letter. MIL-E-44166A(GL) SUPERSEDING MIL-E-44166(GL) 29 March 1985 22 December 1986 a MILITARY SPECIFICATION EXTRACTOR, LAUNDRY: HEAVY DUTY, TOP LOADING, TRAILER MOUNTED This specificati
3、on is approved for use by the U.S. Army Natick Research, Development, and Engineering Center, Department of the Army and is available for use by all Departments and Agencies of the Department of Defense. r u 1. SCOPE 1.1 Scope. This document covers a trailer mounted laundry extractor for field use (
4、see 6.1) 2. APPLICABLE DOCUMENTS 2.1 Government documents. 2.1.1 Documents. The following documents form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents shall be those listed in the issue of the Department of Defense Index of Specific
5、ations and Standards (DODISS) and supplement thereto, cited in the solicitation. SPECIFICATIONS FEDERAL “-1-553 - Insulation Tape, Electrical (Rubber, Natural and QQ-S-571 - Solder, Tin Alloy: Tin, Lead Alloy; and Lead Alloy Synthetic) AMSC N/A FSC 3510 DISTRIBUTION STATEMENT A. Approved for public
6、release; distribution is unlimited. THIS DOCUMENT CONTAINS 18 PAGES. - Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-E-44LbbA 35WT7777b 0249280 T W MIL I TARY MIL-T-152 - Treatment, Moisture and Fungus-Res,stant, of Communications, Electronic,
7、and Associated Electrical Equipment MIL-T-704 - Treatment and Painting of Material MIL-L-3153 - Laundry and Dry Cleaning Machinery and Equipment Packaging of MIL-T-44047 - Trousers, Camouflage Pattern; Combat MIL-L-44142 - Laundry Unit, Trailer Mounted STANDARD S MIL I TARY MIL-STD-105 - Sampling Pr
8、ocedures and Tables for Inspection MIL-STD-130 - Identification Marking of U.S. Military Property MIL-STD-195 - Marking of Connections for Electrical Assemblies MIL-STD-810 - Environmental Test Methods and Engineering Guide Lines by Attributes DRAWINGS U.S. ARMY NATICK RESEARCH, DEVELOPMENT, AND ENG
9、INEERING CENTER 6-1-9945 - Extractor, Laundry, Trailer Mounted Assembly (Copies of documents required by contractors in connection with specific acquisition functions should be obtained from the contracting activity or as directed by the contracting activity.) 2.2 Other publications. The following d
10、ocuments form a part of this document to the extent specified herein. documents which are DOD adopted shall be those listed in the issues of the DODISS specified in the solicitation. Unless otherwise specified, the issues of documents not listed in the DODISS shall be the issues of the nongove.rnmen
11、t documents which are current on the date of the solicitation. Unless otherwise specified, the issues of the NATIONAL FIRE PROTECTION ASSOCIATION (NFPA) NFPA No. 70 - National Electrical Code (Application for copies should be addressed to the National Fire Protection Association, Batterymarch Park,
12、Quincy, MA 02169.) 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-E-44Lbb.A 35 W 7777706 0247281 1 W MIL-E-44 166A( GL) NATIONAL ELECTRICAL MANUFACTURERS ASSOCIATION (NEMA) MG 1 - Motors and Generators (Application for NEMA standards ,should b
13、e addressed to the National Electrical Manufacturers Association, 2101 L St., N.W., WAshington, DC 20037.) AMERICAN WELDING SOCIETY (AWS) r Standard Qualification Procedure of the American Welding Society (Application for copies should be addressed to the American Welding Society, v 345 East 47th St
14、., New York, NY 10017.) AMERICAN SOCIETY OF MECHANICAL ENGINEERS (ASME) Welding Qualifications of the American Society of Mechanical Engineers (Application for copies should be addressed to the American Society of Mechanical Engineers, 345 East 47th St., New York, NY 10017.) UNDERWRITERS LABORATORIE
15、S INC . (UL) UL 50 - Cabinets and Boxes (Application for copies should be addressed to Underwriters Laboratories Inc. , 333 Pfingsten Rd., Northbrook, IL 60062.) AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) A 240 - Heat-Resisting Chromium and Chromium-Nickel Stainless Steel Plate, Sheet and Str
16、ip for Fusion-Welded Unfired Pressure Vessels B 584 - Casting, Copper Alloy Sand, for General Application (Applications or copies should be addressed to the American Society for Testing and Materials, 1916 Race Street, Philadelphia, PA 19103.) (Technical society and technical association documents a
17、re generally available for reference from libraries. They are also distributed among technical groups and using Federal agencies.) 2.3 Order of precedence. n the event of a conflict between the text of this document and the referencecited herein, the text of this document shall take precedence. Noth
18、ing in this document, however, shall supersede applicable laws and regulations unless a specific exemption has been obtained. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-E-4qLbbA 35 m 77777Ob 02q7282 3 m 3. REQUIREMENTS 3.1 First article, W
19、hen specified in the contract or purchase order, a sample shall be subjected to first article inspection (see 4.3, 6.2, and 6.3). 3.2 Codes and standards. The laundry extractor shall comply with the applicable requirements of National Fire Protection Association NFPA 70, Underwriters Laboratories In
20、c., UL 50, and National Electrical Manufacturers Association MG 1. Satisfactory evidence that these requirements have been met shall be submitted to the contracting officer or his authorized representative prior to the start of production (see 4.5). 3.3 Materials and components. The materials and co
21、mponents shall be as specified herein and on the applicable drawings. Materials and components not specifically defined shall be of the quality and construction required to meet the laundry extractors intended use provided the completed item complies with all of the provisions of this document (see
22、6.4). All extractors, control units, and related parts furnished under any specific contract shall be physically and mechanically identical. This requirement includes parts, assemblies, components and accessories. No changes or deviations shall be acceptable without written approval of the contracti
23、ng officer. 3.3.1 Basket aides, top and bottom, lid, curb, and belt guard. The basket sides, top and bottom, lid, curb, and belt guard shall be stainless steel conforming to ASTM A 240, 3.3.2 Basket centerpost. The basket centerpost shall be a copper alloy sand casting conforming to UNS 97600 of AST
24、M B 584, The centerpost shall be cast around a stamped steel insert that is permanently imbedded in the casting. The steel insert will be designed to contact the drive mechanism on the drive shaft to ensure proper operation. 3.3.3 Pullies, legs, and drive unit housings. The pullies, legs and drive u
25、nit housings shall be constructed from cast iron. 3.3.4 Drive shaft. The drive shaft shall be constructed out of high strength medium carbon (0.40 to 0.50) steel with a yield strength of 100,000 psi and Brinell hardness.of 269 plus or minus 2 percent. 3.4 Alternate materials and components, Material
26、s and components offered as equivalents to those specified herein and on the applicable drawings shall be equal in form, fit and function to the specified material or component. The incorporation of such a material or component material in the design of the specified laundry extractor shall not requ
27、ire modification or change in location of any other material or component material, unless such modification is speci- fically approved in writing by the contracting officer. The contractor shall 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-a i
28、a e MIL-E-44LbbA 35 7777706 O247283 5 submit with his bid for the contracting officers or contracting officers representative approval, a list identifying each alternate material or component, that each listed component complies with the requirements listed herein. The contracting officer, may requi
29、re a physical sample of the proposed substitution. Approval of the submitted listing, together with the necessary supporting data does not relieve the contractor of the responsibility that these materials or components perform in accordance with specified requirements when incorporated into the trai
30、ler mounted laundry extractor. 3.5 Design and construction. Design and construction of the trailer mounted laundry extractor shall be as specified herein and on Drawing 6-1-9945 and all subsidiary drawings and parts lists pertaining thereto. 3.5.1 Extractor. The extractor shall be heavy duty top loa
31、ding capable of processing not less than 50 pounds dry weight of material per cycle. components shall be fully accessible including an externally mounted control panel and motor. The rotation of the basket shall not be less than 1700 revolutions per minute. The extractor shall be mounted and operate
32、d on an Army M979 tandem axle trailer. All 3.5.1.1 Basket. The basket shall be 24 inches in diameter by 14.25 inches deep. The perforations in the basket shall face upward and be formed without removing any of the sidewall or bottom material. with a minimum 1 inch thick steel flywheel which is joine
33、d to the basket by riveting or welding. and removable without tools. The basket shall be integral The basket/flywheel assembly s.hall be dynamically balanced 3.5.1.2 - Drive. The extractor shall be belt driven from the motor to a transmission. The transmission shall be a single stage fluid driven un
34、it with a double row sealed top bearing and a single row sealed bottom bearing. An electrically operated solenoid activated braking mechanism shall be connected to the drive shaft. The brake syst.em shall be a disk type or shoe break system which is normally on. The drive unit shall be mounted in a
35、suspension system capable of breaking up any resonant vibration which occurs during acceleration or shock loading which occurs during road, cross country or rail travel. 3.5.1.3 Controls. The extractor shall be equipped with oil tight and water proof controls. These controls are to include but are n
36、ot limited to a start button, emergency stop button and a O to 10 minute timer. 3.5.1.4 Signal devices. A visual indicator signal device to alert the operator that a batch is complete shall be supplied. All indicator lights, power lights, and other lighting equipment shall be covered with blue or gr
37、een lenses and shall have a dimhing capability. fabricated using an infrared light suppressant glass or plastic. percent of all light energy emitted between 300 and 1100 namometers shall be concentrated between 400 and 700 nanometers on any brightness setting. The blue or green lenses must be Ninety
38、-five 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-E-44LbbA 35 m 7777706 0247284 7 m MIL-E-44166A( GL) 3.5.1.5 Safety devices, The extractor shall be furnished with safety devices, These devices shall include but are not limited to an automa
39、tic lid lock and a pulley and belt guard. 3.5.2 Electrical 3.5.2.1 Drive motors. The drive motor shall be constructed, classified and rated in accordance with NEMA MG 1. at 40% or highyr on 208V, 60 hertz, 3 phase power and shall be a minimum of 3 horsepower and be suitable for high speed extractiqn
40、 service. The motor shall have ball bearings and be totally enclosed, fan cooled, and capable of with- standing hose washdown. resettable type heaters. enclosure where the heaters are mounted. for such application by the motor manufacturer. It shall be rated for continuous operation The motor shall
41、be protected against overload with The motor shall be approved in writing Reset buttons shall be accessible without opening the 3.5.2.2 Wiring. All wiring shall be done in accordance with NFPA No. 70 and The solder shall conform to type R marked in accordance with MIL-STD-195. All wiring connections
42、 shall be soldered, taped or have staked connections. of QQ-S-571 and the tape shall conform to “-1-553. A permanent wiring schematic shall be permanently attached to the inside face of the control unit on a removable panel. 3.5.2.3 Enclosure. The control unit enclosure shall be equivalent to an enc
43、losure with a type 4 rating in accordance with UL 50. All external operating mechanisms, switches, timer, and controls when mounted on or through the enclosure, shall be capable of passing the test ortests for the enclosure. All inside and outside surfaces of the enclosure shall be treated and finis
44、hed as specified in 3.9. All controls and switches shall be fully accessible from the exterior of the enclosure and access to the interior of the enclosure shall not be required except to perform maintenance. 3.5.2.4 Current protection. The extractor shall be equipped with externally . accessible ci
45、rcuit breaker protection. 3.5.2.5 Exterior lid switch. A safety interlock shall be pr0vide.d to disconnect power to the drive motor when the lid is open. 3.5.2.6 Moisture and fungus-resistant treatment. Unless otherwise specified (see 6.21, electrical components shall be moisture and fungus-resistan
46、t.treated with materials conforming to and applied as required in MIL-T-152. 3.6 Performance. 3.6.1 Control enclosure. The control unit enclosure shall meet the requirements of UL 50, type 4 when tested as specified in 4.6.1. 6 Provided by IHSNot for ResaleNo reproduction or networking permitted wit
47、hout license from IHS-,-,-MIL-E-441bbA 35 W 777770b 0247285 7 3.6.2 Extractor lid switch (activation prevention). The extractor lid switch shall prevent operation of the drive motor when tested a.s specified in 4.6.2. 3.6.3 Extractor lid switch (deactivation). The extractor shall not open more than
48、1-inch when tested as specifi.ed in 4.6.3. 3.6.4 Emergency stop. The extractor basket shall come to a complete stop within 30 seconds when tested as specified in 4.6.4. 3,6.5 Moisture removal, The test clothes shall not retain more then 30 percent of moisture when tested as specified in 4.6.5. * 3.6
49、.6 Extractor. The extractor when operating through complete manual cycles shall not fail and show no evidence of the following conditions when tested as specified in 4.6.5 and 4.6.5.1. a. b. d. e. f. g- h. i. k. 1. m. C. j. Improper interelationship of components. Improper fit, tightness or alignment of components. Improper cycle times. Improper operation of controls, . Overheated bearings or motors. Leaks. Structural failures. Excessive vibration.
