TM 10-3930-653-14&P f. Calibrate:  To determine and  cause  corrections  to  be  made  or  to  be  adjusted  on  instruments  or  test  measuring 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, subassembly or module (component or assembly) for an unserviceable counterpart. i. Repair: The application of maintenance services (inspect, test, service, adjust, align, calibrate, or replace) or other maintenance actions (welding, grinding, riveting, straightening, facing, remachining, or resurfacing) to restore serviceability to  an  item  by  correcting  specific  damage,  fault,  malfunction,  or  failure  in  a  part,  subassembly,  module  (components  or assembly), and item or system. j. Overhaul:     That     maintenance     effort     (service/action)     necessary to restore an item to a completely serviceable/operational   condition   as   prescribed   by   maintenance   standards   (i.e.,   DMWR)   in   appropriate   technical publications.    Overhaul  is  normally  the  highest  degree  of  maintenance  performed  by  the  Army.    Overhaul  does  not normally return an item to like new condition. k. Rebuild: Consists of those services/actions necessary for the restoration of unserviceable equipment to a like new condition  in  accordance  with  original  manufacturing  standards.    Rebuild  is  the  highest  degree  of  materiel  maintenance applied  to  Army  equipment.    The  rebuild  operation  includes   the   act   of   returning   to   zero   those   age   measurements (hours/miles, etc.) considered in classifying Army equipment/components. B-11

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