MAINTAINABILITY DESIGN TECHNIQUES METRIC - AcqNotes.com

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Downloaded from http://www.everyspec.com on 2011-10-29T14:56:01.DOD-HDBK-791(AM)21.22.23.24.25.26.27.28.29.30.31.32.33.34.35.36.37.38.39.40.41.42,43.44.TABLE 8-4 (cont’d)Are drain points located so that fuel of other combustible fluids cannot run down to or collect in starters, exhausts, orother hazardous areas?Are lubrication requirements reduced to two types, if possible, one for engine lubrication and one for gearlubrication?Are the same fuels and lubricants used in auxiliary or mounted equipment as in the prime unit where practical’? Arethe fuels and lubricants used common with other commodities that would be assigned to the same combat units(tanks, trucks, ground power units, etc.)?Are easily distinguished or different types of fittings used for points or systems requiring different or incompatiblelubricants?Are pressure fittings provided for the application of grease to bearings that are shielded from oil?Is ample grease reservoir space provided for bearings in gear unit?Is provision made for a central lubrication or filler point, or a minimum number of points, to all areas requiringlubrication with a given system component?Are service points provided, as necessary, to insure adequate adjustment, lubrication, filling, changing, charging, andother services to all points requiring such servicing?Are oil filler caps designed so that theya. Snap, then remain open or closed?b. Provide a large, round opening for oil filling?c. Permit application of breather vents, dipsticks, and strainers?d. Use hinges rather than dangerous chains for attaching the lid?e. Are located outside of enclosure, where possible, to eliminate necessity for access doors, plates or hatches?Are materials properly protected against moisture, fungus, and corrosion for storage and use?Are items designed to be compatible with the standard military cleaning methods and materials?Are parts subject to galvanic action properly separated and protected?Are components subject to steam or solvent cleaning (or random contact during equipment cleaning) properly sealedto prevent interior damage?Are mechanisms subject to wear and mechanical damage in use equipped with adjustments for aligning andrepositioning?Are filler locations for tanks and reservoirs labeled to indicate the type of fluid and maximum quantity?Are preventive inspection and maintenance procedures based on detailed evaluation of actual preventivemaintenance requirements for safety and reliability?Does the equipment provide for adjustment and alignment without disassembly?Does alignment or adjustment require no special tools or equipment?Are alignment and adjustment controls located to permit observation or associated displays?Are adjustments for all controls for a mechanism in a single location, e.g., engine controls?Are control cable breakpoints separated sufficiently to assure that they will not be disconnected, which results incrossed controls? Are adjustment turnbuckles separated by sufficient distance to prevent interference within therange of full travel?Will equipment tolerate a small maladjustment of controls for a reasonable period of test operation (5 rein) duringthe adjustment period without sustaining damage?Are lubrication charts adequate?Are group inspection features that are applicable to a particular technical skill held to a minimum of locations tominimize the need for technicians moving around the equipment and personnel interference during scheduledinspections?8-18
Downloaded from http://www.everyspec.com on 2011-10-29T14:56:01.DOD-HDBK-791(AM)REFERENCES1. Airline Manufacturer's Maintenance Program andPlanning Document MSG-2, Air Transport Associationof America, March 1970.2. Program Objective Memorandum. (POM) 78-82.3. DA PAM 750-40, Guide to Reliability CenteredMaintenance (RCM) for Fielded Equipment, 15February, 1980.4. AMC-P 750-2, Maintenance Supply and EquipmentGuide to Reliability Centered Maintenance, 14 June1985.5. DOD Directive 4/51.16, DoD Equipment MaintenanceProgram, 23 August 1984.6. AR 750-1, Army Materiel Maintenance Conceptsand Policies, 15 March 1983.7. AR 700-127, Integrated Logistics Support, 16December 1986.8. MIL-STD-1388/1A, Logistic Support Analysis, 11April 1983.9. MIL-STD-1388/2A, A Logistical Support AnalysisRecord, DoD Requirements for, 20 July 1984.10. DOD Directive 5000-40, Reliability and Maintainability,February 1982.11. DARCOM Regulation 750-11, Maintenance andSupplies—Use of Lubricants, Fluids, and AssociatedProducts, 20 November 1981.12. MIL-STD-838, Lubrication of Military Equipment,December 1983.13. MIL-F-3541, Fitting, Lubrication, January 1982.14. MIL-STD-454, Standard General Requirements forElectronic Equipment, January 1983.15. MS-35844, Plug, Machine Thread, Magnetic (Drain),February 1978.16. AR 750-22, Army Oil Analysis Program, April 1977.17. TB 43-0210, Nonaeronautical Equipment Army OilAnalysis Program (AOAP), December 1984.18. TB 43-0106, Army Aeronautical Equipment ArmyOil Analysis Program (AOAP), April 1981.19. MS-17967, Nozzle Assembly Ventilation and Exhaust,April 1965.20. MIL-C-13984, Can, Water, Military 5-gallon,October 1981.21. Federal Standard 595, Color, February 1980.22. MIL-HDBK-772, Military Packaging Engineering,30 March 1981.23. MIL-STD-210, Climatic Extremes for MilitaryEquipment, December 1973.24. MIL-S-5002, Surface Treatments and InorganicCoatings for Metal Surfaces of Weapon Systems,August 1978.25. MIL-E-5400, Electronic Equipment, Airborne,General Specifications For, September 1980.26. C. P. Dillon, Ed., Forms of Corrosion, Recognitionand Prevention, National Association of CorrosionEngineers, Houston, TX, 1982, pp. 1 and 2.27. M. G. Fontana and N. D. Greene, Corrosion Engineering,2nd Ed., McGraw-Hill Book Company,New York, NY, 1978.28. MIL-HDBK-721(MR), Corrosion and CorrosionProtection of Metals, November 1965.29. B. Chalmers, Physical Metallurgy, John Wiley andSons, Inc., New York, NY, 1959, p. 445.8-19
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