seating, or fixing into position a spare, repair part, or module
(component or assembly) in a manner to allow the proper functioning of an
equipment or system.
Replace - To remove an unserviceable item and install a serviceable
counterpart in its place.
Replace Is authorized by the MAC and is shown as
the third poisiton code of the SMR code.
This is found in the repair parts
Repair - The application of maintenance services, including fault
location/troubleshooting2, removal/installation , and disassembly/assembly3
and maintenance actions4 to identify troubles and restore
serviceability to an item by correcting specific damage, fault, malfunction, or
failure in a part, subassembly , module (component or assembly), end item, or
Overhaul - That maintenance effort (service/action) necessary to
restore any item to a completely serviceable/operational condition as prescribed
by maintenance standards in appropriate technical publications (i.e., DMWR).
Overhaul is normally the highest degree of maintenance performed by the Army.
Overhaul does not normally return an item to like-new condition.
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
material 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.
EXPLANATION OF COLUMNS IN THE MAC, SECTION II
Column 1, Group Number - Column 1 lists functional group code numbers,
the purpose of which is to identify components, assemblies, subassemblies, and
modules with the next higher assembly.
Column 2, Component/Assembly - Column 2 contains the name of
components, assemblies, subassemblies, and modules for which maintenance is
1Services - inspect, test, service, adjust, aline, calibrate, and/or replace.
2Fault locate/troubleshoot - The process of investigating and detecting the
cause of equipment malfunctioning; the act of isolating a fault within a system
or unit under test (UUT).
3Disassemble/assemble - encompasses the step-by-step taking sprat (or
breakdown) of a spare/functional group coded item to the level of its least
componency identified as maintenance significant (i.e., assigned an SMR code)
for the category of maintenance under consideration.
4Actions - welding, grinding, riveting, straightening, facing, remachinery,