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APPENDIX C MAINTENANCE ALLOCATION CHART Section I - INTRODUCTION 1. General.    This  Maintenance  Allocation  Chart  (MAC)  designates  responsibility  for  performance  of  maintenance functions to specific maintenance categories. 2. Maintenance Functions.  Maintenance functions are as follows: a. Inspect:    To  determine  the  serviceability  of  an  item  by  comparing  its  physical,  mechanical  or  electrical characteristics with established standards through examination. b. Test:  To  verify  serviceability  and  detect  incipient  failures  by  measuring  the  mechanical  and/or  electrical characteristics of an item and comparing those characteristics with prescribed standards. c. Service:   Operations   required   periodically   to   keep   an   item   in   proper   operating   condition;   i.e.,   to   clean (decontaminate),  to  preserve,  to  drain,  to  paint  or  to  replenish  fuel,  lubricants,  hydraulic  fluids  or  compressed  air  (gas) supplies. d. Adjust:  To  maintain,  within  prescribed  limits,  by  bringing  into  proper  or  exact  position  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  instruments  or  test, measurement  and  diagnostic  equipment  used  in  precision  measurement.    Consists  of  comparisons  of  two  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. Install:  The  act  of  emplacing,  seating,  or   fixing   into   position,   an   item,   part   or   module   (component   or assembly) in a manner to allow the proper functioning of an equipment or system. h. Replace:  The  act  of  substituting  a  serviceable  like  type  part,  sub-assembly  or  module  (component  or assembly) for an unserviceable counterpart. i. Repair: The application of maintenance services or other maintenance actions to restore serviceability to an item by correcting specific damage, fault, malfunction or failure in a part, subassembly, module (component or assembly), end item or system. C-12


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