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TM    10-4930-251-12&P APPENDIX B MAINTENANCE ALLOCATION CHART SectionI.    INTRODUCTION B-1.  GENERAL a.    This   section   provides   ageneral    explanation of all   maintenance   and  repair   functions    authorized   at various   maintenance levels. b.    The   Maintenance Allocation Chart    (MAC) Section   II   designates  overall   authority    and responsibility fortheperformance   of   maintenance   functions    on  the identified end  item  or  component. Implementation of  maintenance functions upon  end  item  or  component will be consistent    \  withassigned maintenance functions c. Section    III    lists  special  tools   and  test  equipment required for  each  maintenance   function    as referenced in  Section    II. d. Section    IV   contains   supplemental instructions    or  explanatory notes  for   a particular    maintenance function. e.    Section   V  contains   standard   torque   requirements to  be used  when   performing assigned  maintenance functions    unless  otherwise    specified. B-2. MAINTENANCE FUNCTIONS Maintenence functions willbe limited to  and  defined   as follows: a.    Inspect. To  determine   the  serviceability of  an item   by  comparing   its  physical,   mechanical,   and/or electrical    characteristics with   established   standards   through   examination. b. Test. To verify serviceability by measuring the mechanical or electrical characteristics of an item and  comparing those  characteristics with   prescribed    standards. c. Service. Periodic   operations   required   to  keep  an  item   in  proper   operating   condition. i.e.,  to  clean (includes    decontaminate), to  preserve,   to  drain,   to  paint,   to  replenish   fuel,   lubricants,    chemical   fluids,   and to  lubricate. d. Adjust. To  maintain,  within   prescribed  limits,   by  bringing into proper   or exactposition, or by setting   the  operating    characteristics to  specified    parameters. e.    Align. To  adjust   specified   variable   elements   of  an  item  to  bring   about  optimum or  desired performance. f. Calibrate. To  determine   and  cause  corrections    to  be made  or  to  be adjusted   on  instrument    or  test measuring   , and  diagnostic equipment    used  in  precision    measurement.   Consists   of  comparisons    of  two 9 instruments, one  of  which   is  a certified standard   of   known    accuracy,   to  detect  and  adjust   any  discrepancy in  the  accuracy   of  the  instrument being  compared. g.    Remove/Install. To  remove   and  install   the  same  item  when   required   to  perform    service   or  other ing,   seating,   or  fixing into   position   an  item,   part,  or maintenance    functions. Install    is  the  act of  emplacing module   (component    or  assembly)    in  a manner   to  allow   the  proper   functioning of  an equipment    or  system. B-1


 


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