TM 5-6115-593-12 TO 35C2-3-463-1 APPENDIX C MAINTENANCE ALLOCATION CHART Section I.  INTRODUCTION C-1. GENERAL. a.     This  section  provides  a  general  explanation  of all maintenance and repair functions authorized at various maintenance levels. b.     Section  II  designates  overall  responsibility  for the  performance  of  maintenance  functions  on the   identified   end   item   or   component.      The implementation   of   the   maintenance   functions upon    the    end    item    or    component    will    be consistent with the assigned maintenance functions. c. Section   III   lists   the   tools   and   test   equipment required    for    each    maintenance    function    as referenced from Section II. d.     Section  IV  contains  supplemental  instructions, explanatory   notes   and/or   illustrations   required for a particular maintenance function. C-2. EXPLANATION OF COLUMNS IN SECTION II. a. Group   Number.      Column   1.      The   assembly group  is  a  numerical  group  assigned  to  each assembly  in  a  top  down  breakdown  sequence. The  applicable  assembly  groups  are  listed  on the   MAC   in   disassembly   sequence   beginning with  the  first  assembly  removed  in  a  top  down disassembly sequence. b.     Assembly   Group.      Column   2.      The   column contains  a  brief  description  of  the  components of each assembly group. c.     Maintenance    Functions.        Column    3.        This column  lists  the  various  maintenance  functions (A through K) and indicates the lowest maintenance   category   authorized   to   perform these  functions.    The  symbol  designations  for the    various    maintenance    categories    are    as follows: C - Operator or Crew O - Organizational maintenance F - Direct support maintenance H - General support maintenance D - Depot maintenance The maintenance functions are defined as follows: A  -  Inspect.    To  determine  serviceability  of  an item by comparing its physical, mechanical, and electrical characteristics with established standards. B - Test.  To verify service-ability and to detect electrical   or   mechanical   failure   by   use   of test equipment. C  -  Service.    To  clean,  to  preserve,  to  charge, and  to  add  fuel,  lubricants,  cooling  agents, and air.  It if is desired that elements, such as    painting    and    lubricating,    be    defined separately, they may be so listed. D - Adjust.  To rectify to the extent necessary to bring into proper operating range. E - Align.  To adjust specified variable elements of an item to bring to optimum performance. F  -  Calibrate.    To  determine  the  corrections  to be  made  in  the  readings  of  instruments  or test equipment used in precise measurement.  Consists of the comparison C-1