1、. ,. 1 July 1970 SUP ERS E DI N NAVTRADEVCEN 3i 43-1 51 .J I -. * 10 Feb 1958 MILITARY SPECI FI CATION . TRAINER, SECTIONALIZED, MOTOR-DRIVEN, WILLYS ENGINE (MODEL M38A-1) - Thl; specification has been approved by the Naval Training Devi ce Center , Department of the Navy 1. SCOPE 1.1 This specifica
2、tion establ i shes the requi rements for the producti on of a cutaway and sectionalized motor driven Willys Engine (Model M38A-T) trai ner. as Device 29EZl for Navy procurement. 2. APPLICABLE DOCUMENTS 4 The following documents of the issue in effect an the date of invitation for bids or request for
3、 proposal, form a part of this specification to the extent specified herein: 1.1 .l This i tem has been designated by the Naval Training Device Center . 2.1 SPECI FICATIONS Federal PPP -8-601 PPP-B-621 PPP-B-636 Mi 1 i tary Boxes, Wood, Cleated-plywood Boxes, Wood, Nailed and Lock-corner Box, Fi ber
4、board 0= MIL-P-176 Preservation; Methods of MIL-A-8625 Anodi c Coatings , For Al umi num and Aluminum Alloys a MIL-L-10547 Liners, Case and Sheet, Overwrap; Water-Vaporproof or Waterproof, b.+ +lexi1 1 e Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-
5、,- MIL-T-270L3 69 9977706 0386927 b - - J MIL-T-29013( TD) MI L-T-23991 Trai ni ng Devi ces, Mi 5 i tary , General Speci fi cati on for STANDARDS . Federal FE D- STD- 59 5 Col ors Mi 1 i tary MI L-STD-129 Marking for Shipment and Storage MI L-STO-470 Mai ntainabi 1 i ty Program Requi rements PHOTOGR
6、APHS Naval Trai ni ng Devi ce Center (NAVTRADEVCEN) NP-40-535-5-55 through Device 29EZ1 NP-40- 536- 5-55 Sectionalited Willys Engine (Model M38A-1) P UBLI CAT I ONS Naval Trai ni ng Devi ce Center (NAVTRADEVCEN) NAVEXOS P-1223 Maintenance Handbook for Sectional ized Motor-Driven Trainer, Willys Engi
7、ne (Model M38A-1) Devi ce 29EZ1 (Copies of specifications, standards, drawings , photographs , and publications .required by suppliers in connection with specific procurement functions should be obtained from the procuring activity or as directed by the Con tract i ng Offi Cer. ) 3 REQUIREMENTS 3.1.
8、2.1. Materials not specified herein shall conform to the requirements 3.1.1 Metals.- Metal parts shall be of a corrosion-resistant metal 3.1 Materials.- Materials shall be as specified in 3.1.1 through I Of MIL-T-23991 or of a metal given a corrosion-resistant treatment or coating in accordance with
9、 MIL-T-23991 and MIL-A-8625. 3.1.2 Plastics.- Plastics shall be durable and resistant to cracking, brittleness, discoloration, deformation and similar defects , upon aging or when subjected to environmental conditions specified in 3.5. 2 Provided by IHSNot for ResaleNo reproduction or networking per
10、mitted without license from IHS-,-,-MIL-T-27013 67 W 7777706 0386728 8 W FI7 L - T- 2901 3 ( T D) 3.1.2.1 Plastic cementing.- Contact surfaces of pastic pieces to be joined shall be machined or sanded and wherever possible, a cushion surface shall be developed on one contact surface. be used as reco
11、mmended by the manufacturer and tested by the contractor for the particular plastic used. and fom a strong homogeneous bond. written approval of the procuring activity. 3.2 Design.- The trainer shall consist of a Model M38A-1 Willys Engine, cutaway and sectional ized to permit visi bi 1 i ty and cle
12、ar comprehension of all the mechanical and electrical principles involved in its operation. All moving parts shall be driven by an electric motor. The cylinders, head, block, timing gear housing, flywheel housing, crankcase and manifolds of the engine shall be sectionalized in such a manner as to sh
13、ow clearly the principles of operation of the following phases: combustion and exhaust. Cements and solvents shall Cemented joints shall be free of bubbles Capillary joints shall require prior intake, compression, i 3.2.1 The design shall be in accordance with the Photographs 3.2.2 Interchangeabilit
14、y.- All parts5 subassemblies and assemblies having the same part number shall be directly and completely interchangeable with each other in respect to installation and performance, regardless of sources from which obtained, without al teration and without selection for fit or performance, 3.2.3 Safe
15、ty,- Electrical and mechanical safety provisions shall be in accordance with MIL-T-23991 and 3.2.3.1. - NP-40-535-5-55 and NP-40-536-5-55. - 3.2.3.1 Closures.- Clear plastic closures or guards shall be provided 3.3 Construction,- Construction shall be in accordance with processes for all exposed, ha
16、zardous areas. requirements of MIL-T-23991. 3.4 Dimensions and tolerances .- Dimensions and tolerances shall be such as to assure meeting the requirements of 3.2.1, 3.5 and 3.6. 3.4.1 Dimensi ons . - Dimensions (shapes and contours of openings ) not shown in the photographs of 3.2.1 shall be consist
17、ent with the functional design of the device and inherent qualities of the material being used. 3.4.2 Tolerances.- Tolerances in construction, shall be consistent with functional design, inherent qualities of the material being used, and shall afford freedom from binding in structural and mechanical
18、 parts, to ensure free and easy operation of all moving parts of the trainer. 3.5 Reliability.- The trainer shal? be designed to withstand classroom use. Reliability shall be a prime consideration in the design and manufacture of the trainer. The design shall be such as to result in reduced requirem
19、ents for adjustments or alinement. The trainer shall be constructed so no fixed part shall become free and no moving part shall become loose or sluggish in operation. Degradation shall not be caused because of shipment, Provided by IHSNot for ResaleNo reproduction or networking permitted without lic
20、ense from IHS-,-,-(MIL-T-290L3 69 M 977990b 0386929 T M - MIL-T- 2901 3(T3) normal handling in classroom use or storage. The trainer shall be designed for storage and transportation when under ambient conditions of temperature ranging from minus 5 to plus 125 degrees Fahrenheit. accordance with MIL-
21、STD-470 and the instructons for maintenance of NAVTRA- DEVCEN Maintenance Handbook NAVEXOS P-1223. 3.7 Details of components.- The trainer shall consist of the following major components : 3.6 Maintainability.- Maintainability design criteria shall be in (a) Sectionalized Millys Engine (Model M38A-1
22、) (b) Drive motor (c) Illumination system (d) Castered support stand - (e) Dust cover (f) Spare Parts Kit. 3.7.1 Sectionaiized l. I Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-IIIL-T- 2901 3(TD) 3.10 Workmanship.- The trainer; including al1 parts
23、 and accessories, shall be constructed and finished in a thoroughly workmanlike manner. ParfAcular attention shall be given to neatness and thoroughness of markings and indications of parts and assembljes, painting, and freedom of parts Prom burrs and sharp edges. 4. QUALITY ASSURANCE PROVISIONS 4.1
24、 Responsibility for inspection,- Unless otherwise specified in the contract or purchase order, the supplier is responsible for. the performance of all inspection requirements as specified herein. Except as otherwise , specified in the contract or order, the supplier may use his own or any other faci
25、lities suitable for the performance of the inspection requirements specified herein, unless disapproved by the Government. The Government reserves the right to perfom any of the inspections set forth in the specification where such inspections are deemed necessary to assure supplies and services con
26、fom to prescribed requirements. 4.2 Classification of inspection.- Inspections to be performed are classified as follows: (a) in-process inspection .( b) Qual i ty conformance inspection. 4.3 In-process inspection.- In-process inspection shall include such visual and mechanical examination, and test
27、ing of materials, subassemblies, parts and accessories (including purchased standard items) during the manu- facturing process as may be necessary to assure conformance to all the requirements of this specification. 4.4 Quality conformance inspection.- Quality conforinance inspection shall consist o
28、f a preproduction inspection and inspection of production units . 4.4.1 Preproduction inspection.- A preproduction inspection shall be conducted on a preproduction unit and shall consist of all the examinations and tests specified in 4.5 and 4.6, the extent necessary to maintain quality control and
29、cmformance to the Government-accepted preproduction unit. to the following requirements: 4.4.2 Production inspection.- Production units shall be inspected to 4.5 Examinations.- Examinations shall be performed to verify conformance 7 Provided by IHSNot for ResaleNo reproduction or networking permitte
30、d without license from IHS-,-,-(aj hteriais (b) .Design. (c) Construction (d) Dimensions and toierances (e) Details of components . (f) Finish and color (9) Nameplates and product markings (h) Workmanship ( i ) Preparati on for del i very. 4.6 Tests.- Functional tests shall be conducted to determine
31、 compliance to the requirements of this specification. 5. PREPARATION FOR DELIVERY i 5.1 packaged for mechanical and physical protection in accordance with MIL-P-116, Method III, a container conforming to PPP-B-636, Class 2. Preservation and packaging.- Each trainer shall be preserved and 5.11 Unit
32、packaging.- Each trainer shall be packaged one unit to 5.2 Packing.- Units packaged in accordance with 5.1.1 shall be packed in exterior containers conforming to PPP-B-601, styles A or B with steel banding, or PPP-B-621. The gross weight shall not exceed the weight limitations of the shipping contai
33、ner. with a waterproof barrier sealed with adhesive or tape to effect water resistance in accordance with MIL-L-10547. A case liner shall not be required where package(s) and package dunnage have been treated to resist water. Unit fiber boxes, conforming to PPP-B-636, Class 2, exterior shipping cont
34、ainers, closed, reinforced and waterproofed in accordance with the appendix thereto, and used as shipping containers, shall not be overpacked. 5.3 Physical protection,- All material shall be packaged and packed in containers constructed to provide a compact and nonshifting load. Adequate cushioning,
35、 blocking and bracing shall be provided within shipping containers in a manner designed to prevent damage due to shock, vibration or impact during shipment, handling and storage. Each exterior shipping container shall be lined Provided by IHSNot for ResaleNo reproduction or networking permitted with
36、out license from IHS-,-,-MIL-T- 2901 3(TD) 5.3.1 Cushioning and covering materials used shall be compatible with all the finishes of the device, so that migrating solvents in cements, cushioning or components will not adversely affect any part. 5.4 Morki ng. - interi or packages and exteri or shippi
37、ng containers shall be marked in accordance with MIL-STD-129. 6. NOTES 6.1 Intended use. - The secti onal i zed motor-driven trainer , Wi 1 lys engine (Model M38A-1) , is intended to be used by instructors as an aid in group training of Naval personnel , or as a self-training medium, in demonstratin
38、g the principles and theory of operation, identification and function of components and construction of the Willys Engine (Model M38A-1). . 6.2 Orderi ng data. - Procurement documents s hou1 d speci fy the f o1 1 owi ng : -. CUSTODIAN : - (a) Title, number and date of this specification (b) Procuring activity designation (see 1.1 .l) I Navy -TD PREPARING ACTIVITY: Navy -TD Project No. 691 0-N250 9 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
