1、9 MIL-W-52325B 38 7777906 0238263 7 MIL-W-52125B 19 duly 1968 SUPERSEDING 29 July i964 MIL-W-S2125A(MO) MILITARY SPECIFICATION - WASHING AND SCREENING UNIT, A-GATE, ELEC!tRIC-MMIOR-DRIVEN, 75 -“ON-PER-HOUR CAPACITY This specification is mandatory for use by all Departments and Agencies of the Depart
2、ment of Defense. 1. SCOPE 1.1 This specification covers a semitrailer-mounted, pneumatic-tired, electric-motor-driven aggregate washing and screening unit with dolly. 2. APPLICABrn DOCUMENTS 2.1 The.following documents ofthe issue in effect on date of invita- tion for bids or request for proposal fo
3、rm a part of this specification to the extent specified herein: SPECIFICATIONS Federal W-C-586 m-171 FF-B-185 FF-B-187 QQ- S - 781 QQ- S -793 SS-R-406 TT-P-664 - Conduit Outlets and Entrance Caps, Electrical; Cast Metal - for Shore Use. - Bearings, Ball, Annular (General - Bearings, Roller, Cylindri
4、cal; and Bearings, Roller, Seif-Aligning. - Bewing, Roller, Tapered. - Steel, Strapping, Flat. - Steel, Strapping, Round (Bare and Zinc-Coated) - Road and Paving Materials; Methods of Sampling and Testing. - Primer Coating, Synthetic, Rust- Inhibiting, Lacquer-Resisting. Purpose) 0 Provided by IHSNo
5、t for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-W-52325B 38 W 7797706 O238264 O W MI-v-121 UIJ-T-L WW-C-566 w-C-581 ww-v-58 m-561 GGG-J-51 PPP -B- 601 PPP-B-621 PPP- C- 650 PPP- T- 60 Military MIL-P-11.6 MIL -B- 121 MIL-V-i73 MIL-P-514 MIL-1-631 MIL-T- 704 MIL-T-
6、 740 n;-2105 MIL-C-3432 MIL-G-3859 - Varnish, Spar, Water-Resisting. - Tags, Shipping and Stock. - Conduit, Metal, Flexible, - Conduit, Metal, Rigid; and Coupling, Elbow, and Nipple, Electrical Conduit; Zinc-Coated. - Valves, Gate, Cast-Iron; 125- and 250- Pound, Screwed and Flanged (for Land Use) .
7、 Rubber, Smooth Bore, Water. Hand Operated . - Hose, Rubber, and Hose Assemblies, - Jacks, Mechanical and Iiydraulic, - Boxes, Wood, Cleated-Plywood . - Boxes, Wood, Nailed and Lock-Corner. - Crates, Wood, Open and Covered. - Tape: Pressure-Sensitive Adhesive, Waterproof for Packaging. - Presemation
8、, Methods of, - Barrier Material, Greaseproofed, Waterproofed, Flexible - Varnish, Moisture-and-Fungus-Resistant (for the Treatment of Communications, Electronic, and Associated Electrical Equipment). and Marking, Blank. Resin Composition, Nonrigid. - Plates, Identification, Instruction - Insulation
9、, Electrical, Synthetic- - Treatment and Painting of Materiel. - Trucks, 5 Ton, 6 x 6, Military Design, - Lubricating Oil, Gear, Multipurpose. - Cable and Wire, Electrical (Power and Control; Semi-Flexible, Flexible and Extra Flexible, 300 and 600 Volts). - Flttings, Lubrication. - Crates, Wood; Ope
10、n, 12,000 and 16,000 Pound capacity. - Grease Guns, Hand, High Pressure, . Lever-Operated; Cartridge and Bulk Loading (i4 Ounce and 21 Ounce Capacity) M39 Series, 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-W-52325B 38 m 797770b 0238265 2
11、m MIL-H-3992 MIL-B-7883 ME-s-8660 MIL-P-OO MIL-G-1094 ME-R-11461 MIL- T-i245 9 MIL- S-125 14 MIL-C-i3486 MIL-P-13983 MIL-1-15126 MIL-H-15424 MIL-V-16721 MIL-L-o MIL-G-23827 MIL-N-25027 MIL-P-46093 1-62012 STANDARDS Federal - Hose and Hose Assembly, Rubber; Air - Brazing of Steels, Copper, Copper - S
12、ilicone Compound. - Pumps, Centrifgal, for Water. - Grease, Automotive and Artillery. - Rod, Ground, (With Attachments). - Tire, Pneumatic; for Military Ground Vehicles . - Starters, Motor; Across-the-Line and Reduced Voltage Types, A-C Induction, 3/4 to 100-Hp, Manual and Electric. - Cable, Special
13、 Purpose, Electrical; Low-Tension, Heavy-Duty, Single - Conductor and Multi-Conductor. - Paint, Temporary, Lusterless, Gasoline Removable. - Insulation Tape, Electrical, Pressure Sensitive Adhesive and Pressure Sen- sitive Thermosetting Adhesive. - Hand Tools; Packaging of. - Valves, Foot, Low Press
14、ure (for Water). - Lubricating Oil, Internal-Combustion Engine, Preservative. - Grease, Aircraft and Instrument, Gear and Actuator Screw. - Nut, Self-Locking, 250F., 450F., and 800O., 125 KSI ETU, 60 KSI FTU, and 30 KSI FTU. - Primer Coating, Synthetic (for Brake Drums). - Truck, 10 Ton, 6 x 6, m1 A
15、l Series. and Vacuum Brake, Automotive. Alloys, Aluminum, and Aluminum Alloys. FED. STD. NO. 595 Military MIL- STD-15 MIL-STD- i05 - Colors. - Graphic Symbols for Electrical and - Sampling Procedures and Tables for Electronic Symbols. Inspection by Attributes. 3 Provided by IHSNot for ResaleNo repro
16、duction or networking permitted without license from IHS-,-,-MIL-W-52125B MIL -sm-129 MIL - STD - 130 m-STD-281 MIL- STD-421 MIL-STD-423 MIL -STD- 424 MIL-STD-461 MIL - STD -619 MIL- STD-642 MIL - STD - 1186 MIL-STD-1224 MIL- STD-1261 21322 MS21333 MS21334 MS27l.42 MS2.n43 2714.4 - Marking for Shipm
17、ent and Storage. - Identification Marking of U. S. Military Property. - Automobiles, Trucks, Truck-Tractors, Trailers and Trailer Dollies; Preser- vation and Packaging of. - Chain, Roller; Power Transmission and Conveyor, Flat Link Plates, Single Pitch, Single and Multiple Strand: Connecting Links a
18、nd Attachment Links. - Chain, Roller; Conveyor, Standard and Large Rollers, Flat Link Plates, Double Pitch, Single Strand; Connecting Links and Attachment Links. - Chain, Roller; Power Transmission, Offset Sidebars, Single-Pitch. - Electromagnetic Interference Character- ishics Requirements .for Equ
19、ipment. - Unified Soil Classification System for Roads, Airfields, Embankments and Foundations. - Identification Marking of Administra- tive, Combat, and Tactical Transport Vehicles. - Cushioning, Anchoring, Bracing, Block- ing, and Waterproofing; with Appropriate - Visual Inspection Guide for Pneun
20、atic Tires (Nonaircraft) . - Welding Procedures for Constructional Steels . - Clamps, Loop - Aluminum - Plain and Cushioned . - clamps, Loop - Steel - Plain and Cushioned e - Clamps, Loop - Double, Cable or Tube, Steel, Plain and Cushioned. - Connector, Plug, Electrical - Pin Contact, No. 12, i4 of
21、the yield point. 3.6 Safety. (a) (b) (c) () The safety characteristics of the unit shall meet the following requirements: Eliminate concealed danger created by the suppliers design. Eliminate hazards to personnel and to property. Result in supplying material having a correct safety factor. Provide n
22、eeded safety and protective devices or prominent warnings. Protective devices shall not impair the operating functions. Conform to all requirements of the ICC Motor Carrier Safety Regulations, parts 1% and 193, pertaining to large semitrailers, except for rear bumper, and as specified herein. Confor
23、m to Code of Federal Regulations, Title 23, Chapter 2, Part 255, Federal Motol. Vciiicie :eLjr Standards, except as specified herein. Theoretical calculations are acceptable in lieu of destructive testing. (e) (f) For exposed components and systems which are subject to high temperatures, high pressu
24、res, electrically actuated, or inherently hazardous, the safety characteristics shall provide correct safe guarding, enclosing, and 11 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-W-52L25B 38 7777706 0238274 3 = MILt-W-52125B insulating featur
25、es. as to be a hazard to operating or maintenance personnel shall be fully en- closed or guarded. fbctional sharp edges, projecting points, and excessive length of fasteners shall be eliminated. An unobstructed space shall be provided on the rear of the unit for mounting of an emblem identifying slo
26、w-moving vehicles. mounting bracket socket shall be permanently installed and shall conform to SAE 3725 and MAE s276,i. nished on each unit and shall be in accordance with AS# s276.i. For other than travel, the emblem and blade shall be stowed in the toolbox. All moving parts which are of such natur
27、e or so located Step surfaces shall provide a nonskid footing, .Non- A An emblem and its mounting blade shall be fur- 3.7 Hoppers and chutes. Al1 portions of hoppers, chutes, plates, and metal surfaces subjected to abrasive wear caused by aggregate movement shail be lined or faced with replaceable,
28、abrasion-resistant steel plates not less than 3/8 inch in thickness conforming to ASm A242. Ail bolt heads subjected to the flow of aggregate shall not extend beyond surfaces exposed to the material and shall be of hardened steel, 3.7.1 Screen feed chute. A feed chute shall be mounted at the feed en
29、d of the vibrator screen to receive material ?rom the scrubber discharge chute and discharge it evenly across the full width of the screen. 3.7.2 Screen discharge hopper and chutes. 3.7.2.1 Discharge hopper. A discharge hopper shall be located under the vibrating screen to receive all material that
30、passes through the bottom deck and pass it into the receiving hopper of the dehydrator. 3.7.2,2 .Chutes. Material chutes shall be provided for the three screen decks. The ground clearance under the chutes shall be 36 inches plus or minus 2 inches when the plant is set up for operation, level both tr
31、ans- versely and longitudinally, and supported by the stabilizing jacks (all wheels free to turn). “he chute arrangement shall provide for not less than 4-1/2 foot clearance between centerlines of the discharge end of the chutes. 3.8 Electrical system. 3.8.1 Electric motors. The electric motors shal
32、l be 1,800-rpm, 440- , volt, 3-phase, -cycle, ball-bearing, squirrel-cage induction, continuous- rated; totally-enclosed, fan-cooled, design “C“ in accordance with NEMA MG-1, integral-horsepower, class “A“ insulation, temperature rise 55“ C. All motors shall be provided with mounting brackets, accor
33、dance with FF-E-171, type as applicable, double-seal class, packed with grease conforming to MIL-G-23827. Bearings shall be in 12 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-W-52125B 3.8.2 Controls, All controls, receptacles, and switches sha
34、ll be mounted on the unit so that they are accessible to the operator when the operator is standing on the ground. 3.8.2.1 Power receptacles. Six female receptacles of the 4-pole type suitable for 20-ampere, 440-volt semice shall be provided. shall be equal to and interchangeable with Joy part No. 8
35、060-85 and shall consist of an insert equal to and interchangeable with Joy part No. x860-87, and shall be provided with 24-inch pigtails plus a spring loaded covered mounting shell equal to and interchangeable with Joy part No. 1697. receptacles shall be mounted in a bank and shall be accessible to
36、 the operator from the ground level. vided with a motor starter as specified in 3.8.2.5 and shall be clearly identifled. 200-amp, kbO-volt service shall be provided and shall include a spring- loaded dust cover and a safety chain. The receptacle shall be equal to and interchangeable with Joy part No
37、. 8617-26. The receptacles The One of the six receptacles shall be pro- A main feeder receptacle of the 4-pole male type suitable for 3.8.2.2 Main feeder disconnect. The main feeder disconnect shall be a circuit breaker conforming to NEMA AB-l. The circuit breaker shall be a nonautomatic circuit int
38、errupter with shunt trip device. It shall pro- vide watertight (type IV) and dusttight (type V) construction in accordance with NEMA IC-1. The breaker shall be 3-p0le, rated for 225 amperes, and actuated by an external handle. The switch handle positions shall be labeled : “OFF“, “ON“, ESET ET . 3.8
39、.2.3 Safety cutout Two, one-position, pushbutton, switch-type, normally-open safety cutouts shall be furnished. be located on the distribution panel. located so as to be operable from ground level while the operator is viewing the side of the unit opposite the side on which the distribution panel is
40、 located. interrupting current and shall be labeled “STOP“. shall be of dusttight (type V) and watertight (type IV) construction in accordance with NEMA IC-1. distribution panel. operable from ground level while viewing the side of the unit opposite the side on which the distribution panel is mounte
41、d. One safety cutout shall The other safety cutout shall be Each safety cutout shall be rated at 30-ampere maximum The safety cutouts One safety cutout shall be located on the The other safety cutout shall be located so as to be 3.8.2.4 Distribution panel and branch circuit protective devices. The p
42、anel shall be of dusttight (type V) and watertight (type IV) construction in accordance with NEMA IC-1. neutral, with 200-ampere, main-lug capacity. be provided with a circuit breaker in accordance with NEMA AB-1. The panel shall be 3-phase, 4-wire, solid Each branch circuit shall Single- Provided b
43、y IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-W-52125B pole circuit breakers will be acceptable if provided with handle tie bars for each individual polyphase circuit. as a branch circuit, and individual circuit breakers shall be provided for all. starte
44、rs, Each starber shall be considered 3.8.2.5 Motor starters. a motor starter, The motor starters shall be in accordance with MIL-S-12514, type I, class 2, style B, and shallbe 3-pole, alternating current, magnetic, nonreversing, across-the-line, and rated for kkO-volt, 60 cycle operation. The enclos
45、ures shall be watertight (type IV) and dusttight (type V) in accordance with NEMA IC-1 and shall be provided with start-stop pushbuttons in the covers. Each motor on the unit shall be provided with 3.8.3 Cable assemblies. 3.8.3.1 Power cables and reels and ground rods. %e main feeder cable Each leng
46、th shall be provided shall consist of two identical 100-foot lengths of cable conforming to MIL-C-3432, type CO*03HGF (3/00-3/5R)i750. with a 4-pole male connector on one end and a When provided, the stationary frame shall be structural steel or castings. 3.11.2 Live frame. The live frame of the scr
47、een assembly shall be of steel plates on structural steel members with crossmembers to hold the screen cloths. The frame shall prevent movement of the screen cloth during full-load operation. The crossmembers shall create a longitudinal crown of not less than 1/2 inch in the screen cloth. A molded n
48、eoprene cushion shall be provided between the screen cloths and the crossmembers. Screen cloths shall be changeable by using common tools. The frame shall be balanced to provide an even flow of material across the full width of the, cloth. 3.11.3 Screen cloth. Screen cloth shall be furnished in 5-fo
49、ot by fullwidbh sections and shall be in accordance with MS39127. sections of each size shall be furnished in addition to those specified in 3.11. “Wo 5-foot Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-W-52125B 38 a 7777706 0218280 7 - MIL-W-52125B 3.11.3.1 Wire. All screen cloth shall be made of crimping-grade, oil- tempered stmm heavy wire
