TM 9-2815-250-24&P APPENDIX B MAINTENANCE ALLOCATION CHART Section I.  INTRODUCTION Paragraph Page Number Paragraph Title Number B-1 General............................................................................................................................... B-1 B-2 Maintenance Functions ........................................................................................................ B-1 B-3 Explanation of Columns in Section II, Maintenance Allocation Chart for Engine Assembly, Diesel, Hatz 2 G 40.............................................................................................................. B-2 B-4 Explanation of Columns in Section III, Tools and Test Equipment Requirements ..................... B-3 B-1. GENERAL. Appendix B consists of three sections: a. Section   I   provides   a   general   explanation   of   all   maintenance   and   repair   functions   authorized   at   the   various maintenance levels. b. Section   II,   the   maintenance   allocation   chart   (MAC),   designates   overall   authority   and   responsibility   for   the performance   of   maintenance   functions   on   the   identified   end   item   or   component.      The   application   of   the maintenance functions to the end item or component will be consistent with the capacities and capabilities of the designated maintenance levels. c. Section   III   lists   the   tools   and   test   equipment   (both   special   tools   and   common   tool   sets)   required   for   each maintenance function as referenced from Section II. B-2. MAINTENANCE FUNCTIONS. Maintenance functions are 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 (e.g., by sight, sound, or feel). b. Test.    To  verify  serviceability  by  measuring  the  mechanical,  pneumatic,  hydraulic,  or  electrical  characteristics  of an item and comparing those characteristics with prescribed standards. c. Service.  To keep an item in proper operating condition by periodically cleaning (including decontaminating, when required), preserving, draining, painting, or replenishing fuel, lubricants, chemical fluids, or gases. d. Adjust.  To maintain or regulate, 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. B-1