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
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) , and items, or system.
The maintenance effort (services/actions)
necessary to restore an item to a completely serviceable/operational
condition as prescribed by maintenance standards (i.e., DMWR) in
appropriate technical publication. 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
Column Entries Used in the MAC.
a. Column 1, Group Number. Column 1 list group numbers, the
purpose of which 1s to identify components, assemblies, subassemblies,
and modules with the next higher assembly.
b. Column 2, Component/Assembly. Column 2 contains the names of
components,assemblies, subassemblies, and modules for which
maintenance is authorized.
c. Column 3, Maintenance Functions. Column 3 lists the
functions to be performed on the item listed in column 2.
detailed explanation of these functions, see para. B-2).
Column 4, Maintenance Category.
(1) Column 4 specifies, by the listing of a "work time"
figure in the appropriate sub-column(s), the lowest level of
inspect, test, service, adjust, align, calibrate, or
Action - welding, grinding, riveting, straightening, facing,
remachining, or resurfacing.