MAINTENANCE FUNCTIONS (Continued).
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.
The act of substituting a serviceable like type
part, subassembly, or module (component or assembly) for an unservice-
The application of maintenance services (inspect,
test, service, adjust, align, calibrate, or replace) or other mainten-
ance actions (welding, grinding, riveting, straightening, facing, re-
machining, or resurfacing) to restore serviceability to an item by
correcting specific damage, fault, malfunction, or failure in a part,
subassembly, module (component or assembly), end item, or system.
That maintenance effort (service/actions) neces-
sary to restore an item to a completely serviceable/operational con-
dition as prescribed by maintenance standards (i.e., DMWR) in approp-
riate 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.
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.
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.
Column 1, Group Number.
Column 1 lists group 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 names
of components, assemblies, subassemblies, and modules for which
maintenance is authorized.
Column 3, Maintenance Functions.
Column 3 lists the
functions to be performed on the item listed in column 2. (For
detailed explanation of these functions, see para B-2).
Column 4, Maintenance Level.
Column 4 specifies, by the
listing of a work time figure in the appropriate subcolumn(s), the
lowest level of maintenance authorized to perform the function listed
in column 3.
This figure represents the active time required to per-
form the maintenance function at the indicated level of maintenance.