1、MIL-E-43866C 7 Wrch i986 SUPERSEDING MIL-B-43866B 19 September 1979 MILITARY SPECIFICATION BREAD-SLICING MACHINES, ELECTRIC-OPERATED, MULTIPLE KNIFE This specification is approved for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This document covers electric-
2、operated, multiple knife, bread-and * slicing machines. 1.2 Classification. Bread-slicing machines shall be of the following types and styles as specified (see 6.2). Type I - With gravity feed chute Style 1 - With stand Style 2 - Without stand Type II - With mechanical single loaf feed (shipboard us
3、e) Style 1 - With stand Style 2 - Without stand 2. 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 for proposal, form a part of this document to the extent specified herein. t i Benefi
4、cial comments (recommendations i additions, deletions) and any pertinent data which may be of use in improvingthis document should be addressed to: U,S. Army Natick Research, Development and Engineering Center, Natick, MA 01760-5014 by using the sel-addressed Standardization Document Improvement Pro
5、posal (DD Form 1426) appearing at the end of thls document or by letter. I l AMSC NIA FSC 7320 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. x. THIS DOCUMENT CONTAINS PAGES. - - /i F Provided by IHSNot for ResaleNo reproduction or networking permitted without lice
6、nse from IHS-,-,-MIL-B-43bbC 73 9777706 0242325 7 W MIL-B-43866C SPECIFICATIONS FEDERAL CC-M- 18 O 7 QQ-N-288 QQ-N-290 TT-P-664 MMM-A-260 PPP-B-60 1 PPP-E-621 PPP-B-636 PPP-B-1055 PPP-T-45 PPP-T-60 PPP-T-76 MILITARY - Motors, Alternating Current, Fractional and Integral - Nickel-Copper Alloy and Nic
7、kel-Copper-Silicon Alloy - Nickel Plating (Electrodeposited) - Primer Coating, Synthetic, Rust-Inhibiting, Lacquer - Adhesive,. Water-Resistant, (For Sealing Waterproofed - Boxes, Wood, Cleated-Plywood - Boxes, Wood, Nailed and Lock-Corner - Boxes, Shipping, Fiberboard - Barrier Material, Waterproof
8、ed Flexible - Tape, Gummed, Paper, Reinforced and Plain, for Sealing - Tape, Packaging, Waterproof - Tape, Pressure-Sensitive Adhesive Packaging/Paper (for Horsepower (500 hp and Smaller) Castings Resisting Paper) and Securing Carton Sealing) MIL-P-116 - Preservation, Methods Of MIL-B-121 - Barrier
9、Material, Greaseproofed, Waterproofed, Flexible . MIL-V-173 - Varnish, Mois ture-and-Fungus Resistant (For Treatment of Communications, Electronic and Associated Equipment) STANDARDS MILITARY MIL-STD-105 MIL-STD-129 MIL-STD-130 - Identification Marking of U.S. Military Property MIL-STD-461 Requireme
10、nts for the Control of Electromagnetic Interference Measurement Of - Sampling Procedures and Tables for Inspection by - Marking for Shipment and Storage - Electromagnetic Emission and Susceptibility Attributes MIL-STD-462 - Electromagnetic Interference Characteristics, 2 Provided by IHSNot for Resal
11、eNo reproduction or networking permitted without license from IHS-,-,-MIL-B-LI38bbC 73 7777706 02LI2326 7 I 3 MIL-B-43866C (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
12、 activity.) 2.2 Other publications, Unless otherwise specified, the following documents 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) A 167 - Stainless and
13、Heat-Resisting Chromium-Nickel Steel, Plate, Sheet and Strip D 3951 - Standard Practice for Commercial Packaging E 18 - Rockwell Hardness and Rockwell Superficial Hardness of Metallic Materials (Application for copies should be addressed to the American Society for Testing and Materials, 1916 Race S
14、treet, Philadelphia, PA 19103.) BAKING INDUSTRY SANITATION STANDARDS COMMITTEE (BISSC) Standard No. 13 - Breadand Roll Slicers and Wrappers (Application for copies should be made to Baking Industry Sanitation Standards Committee, 521 Fifth Avenue, New York, NY 10017.) UNDERWRITERS LABORATORIES , INC
15、. (UL) Standard No, 73 - Motor-Operated Appliance (Application for copies should be addressed to Underwriters Laboratories, Inc, 333 Pfingsten Road, Northbrook, IL 60062.) (Technical society and technical association documents are generally available for reference from libraries. and using Federal a
16、gencies.) They are also distributed among technical groups $: 2.3 Order of precedence, In the event of a conflict between the text of this document and the references cited herein (except for associated detail specifications, specification sheets or MC standards), the text of this document shall tak
17、e precedence. Nothing in this document however, shall supersede . applicable laws and regulations unless a specific exemption has been obtained. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-B-43bbC 73 H 777770b O242327 O MIL-B-43866C I 3, REQU
18、IREMENTS 3.1 Standard product. The bread-slicing machine shall, as a minimum, be in accordance with the requirements of this document and shall be the manufacturer s standard commercial product with any added features needed to comply with the requirements of this document. Modifications to add feat
19、ures shall not incorporate different parts unless such parts are used on other current commercial models. Standard or modified commercial products furnished in accordance with this document shall be identifiable by all regular manufacturers or commercial service organizations servicing the brand inv
20、olved. Service organizations shall be capable of providing complete parts and repair services on models furnished to the Government consistent with their normal commercial practices. fc 3.2 Codes and standards. The bread-slicing machines shall conform to the applicable requirements of BISSC Standard
21、 No. 13, and UL Standard No. 73. 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 4.3). 3.3 Materials (see 6.3) and components. Materials and components shall be as specifi
22、ed herein. Materials and components not definitely specified shall be of the quality normally used by the manufacturer for his standard bread-slicing machine provided the completed items comply with all provisions of this document. 3.3.1 Stainless steel. 3.3.1.1 Stainless steel. Stainless steel shal
23、l conform to type 302 or 304 of ASTM A 167. 3.3.1.2 Nickel-copper alloy. Nickel-copper alloy shall conform to QQ-N-288. 3.4 Design and construction. The bread-slicing machines shall be electrically operated and be designed to have the knife frames rapidly reciprocated in opposite directions. Each lo
24、af shall be completely sliced as it moves across the knives. A hold down unit shall be provided to hold the bread in its normal position during the slicing of the bread. Slices shall be cleanly cut and 7/16 inch in thickness. There shall be no marked change in the shape of the loaf after being slice
25、d. crumbs that fall from the slicer. The crumb tray may be a pan or drawer. The machine shall be designed to transversely slice loaves, which are a minimum of 12 inches long and 4-5/8 inches square, at a rate of not less than twelve loaves per minute for type I and two loaves per minute minimum for
26、type II when tested as specified in 4.4.2. The bread slicing machine shall consist of knives, knife - frames (reciprocating powered type), loaf guides, crumb tray, back and front chute for type I, stand for style 1, motor, and control assembly. The type I bread-slicing machine shall have a chute equ
27、ipped with loaf guides fixed at such an angle or angles that when the back chute is maintained fully loaded with loaves of bread, The crumb tray shall be suitable for catching all 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-1 MIL-B-LI3bbC 73 11
28、1 797770b 02LI2LZ 2 = MIL-B-43866C I the loaves shall move by gravity to the knives, be sliced, and move by gravity to the bread stop at the front chute. mechanisms shall be enclosed to the maximum feasible to minimize potential for operator contact with moving parts. loaf receiving trough with hold
29、 down mechanism. The bread-slicing machine drives and The type II machine shall have a single 3.4.1 Knives. The slicing knives shall be heat-treated carbon steel having not less than 0.85 percent carbon with nickel or chromium plating except at the cutting edge, heat-treated stainless steel of cutle
30、ry grade having not less than 0.60 percent carbon and 14 percent chromium, or tempered and polished chrome- vanadium steel. of C50 to C60 measured within 1/8 inch of the cutting edge when tested as specified in 4.4.3. The slicing knife cutting edge shall have a Rockwell hardness 3.4.2 Knife frames.
31、The knife frames shall be fabricated from aluminum, carbon steel, stainless steel, nickel-copper alloy, magnesium-base alloy, or malleable iron. The knife frames shall have the knives set to slice 7/16 inch thick slices. The frame shall be provided automatic means for independently adjusting the ten
32、sion of each individual knife. constructed so as not to be deformed by loads arising from the tensioning of the knives. The knife frame shall be - 3.4.3 Loaf guides, type I. Loaf guides shall consist of two full-length members, one on each side of the chute, readily and easily adjustable. adjustable
33、 from 6 inches to a maximum of 16 inches. Each member shall be provided with a mechanical clamping device or devices convenient for rapid manipulation by hand and securely locking the member in the desired position. The position of each member shall be The separation between the two members shall be
34、 3.4.4 Crumb tray. The bread-slicing machine shall be provided with a crumb The crumb tray shall be attached to the machine by mechanical means and tray. shall be -readily removable for cleaning. 3.4.5 Chutes, type I. The bread-slicing machine shall be provided with a back chute and a front chute. T
35、he back chute shall be at least 25-1/2 inches in length measured from the knives to the back edge of the back chute. chute shall be provided with a metal loaf stop and adjustable side guides. front chute shall be at least 6-1/8 inches in length measured from the knives to the front edge of the front
36、 chute. Chutes shall be fabricated of stainless steel as specified in 3.3.1.1. The front The 3.4.6 Stand (for style 1 only), The stand may be of a frame type or cabinet type construction. When frame type construction is used, the frame shal consist of four legs, top frame, and bottom frame. The top
37、and bottom frames shall be welded or bolted to the four legs to form a rigid assembly. The legs shall extend from the floor to the bottom of the bread-slicing machine body. When a cabinet type construction is used, exterior sheets shall be welded or fastened to the.frame to form a rigid assembly. wi
38、th a door on one end, The cabinet shall be provided The door shall-be provided with means to hold the door 5 , Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-B-Ll38bbC 73 7797706 242L27 Ll = MIL-B-43866C , closed. Stands shall be provided with m
39、eans for fastening the stand to the bread-slicing machine. The stands shall have holes for hold down bolts at the floor level. 3.4.7 Dimensions, type II. The dimensions of the type II machines without stands, but including all attachments necessary for operation, shall be 26 inches wide maximum, 29
40、inches deep maximum, and 28 inches high maximum. 3.5 Electric characteristics. Bread slicing machines shall be designed to operate on a nominal 120 volt, single phase 60 Hz power supply. Provisions for grounding shall be included in each slicer. Access to controls and connections shall be gained fro
41、m the front of the slicing machine. 3.5.1 Motor. Unless otherwise specified (see 6.21, the motor for the bread- slicing machines shall be of the totally inclosed type. The motor shall have the necessary characteristics to start and operate the machine under full-load conditions without exceeding the
42、 temperature for which the motor was designed. The motor shall be equipped with external overload protection. overload protection will be accepted if this is a common practice of the manufacturer. The motor shall conform to CC-M-1807. Manual reset 3.5.2 Switch motor. The bread-slicing machine shall
43、have a readily accessible double-pole, single-throw switch provided for starting and stopping the motor. The switch shall be recessed into the body structure of the bread- slicing machine or may be shielded to prevent inadvertent activation. 3.5.3 Cord and attachment plug. All bread-slicing machines
44、 shall be furnished with a flexible, oil-resistant, rubber covered, type SO or SJO cord with a 3-prong grounding type plug. shall extend not less than 6 feet beyond the machine. The cord shall be 3-wire grounding type and 3.6 Operation. The bread-slicing machine shall operate properly and shall not
45、bind, adjustable components shall be adjustable over the entire range without binding, and starting and stopping devices shall operate properly when tested as specified in 4.4.1. After operation there shall be no loose, broken, or missing parts and no wear of moving components. 3.7 Electromagnetic c
46、ompatibility. When specified (see 6.2), the units shall be designed and equipped for electromagnetic compatibility in accordance with class V, class C3, part 10, group I of MIL-STD-461 (see 4.4.4). 3.8 Fungus and moisture resistance of electrical components. When specified (see 6.2), bread-slicing m
47、achines shall be treated to resist fungus and moisture as follows: a. Circuit elements which have a temperature rise of not more than 750F when operated at full load, shall be coated with fungus-resistant varnish conforming to MIL-V-173. Circuit elements include, but are not limited to, cable, wire,
48、 terminal blocks, capacitors, and coils. 6 O Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-L I MIL-B-43bbC 73 7799706 0242330 O 9 MIL-B-43866C b. Electrical components not requiring fungus moisture resistance such as switches, fuses, and contacts,
49、shall not be treated. Other materials and components which are inherently fungus-resistant or are protected by hermetic sealing need not be treated. . grease fittings, except the ball or roller type bearings may be grease packed and sealed, and sleeve bearings may be lubricated in connection with an oil- filled housing of which they are a part. All other bearings, except permanent bearings, used for guiding or supporting the frames, shall be ac
