TM 9-2330-383-14&P
B-2. MAINTENANCE FUNCTIONS (CONT)
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 services1 or other maintenance actions2
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.
j. Overhaul. That maintenance effort (service/action) necessary to restore an
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.
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
equipments/components.
B-3. EXPLANATION OF COLUMNS IN THE MAC, SECTION II
a. 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.
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 Function. Column 3 lists the functions to be performed
on an item listed in Column 2. (For detailed explanation of these functions, see
d. Column 4, Maintenance Category. Column 4 specifies, by the listing of a work
time figure in the appropriate subcolumn(s), the category of maintenance authorized
to perform the function listed in Column 3. This figure represents the active time
required to perform that maintenance function at the indicated category of
maintenance. If the number or complexity of the tasks within the listed maintenance
function vary at different maintenance categories, appropriate work time figures
will be shown for each category.
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1 Services--inspect, test, service, adjust, aline, calibrate or replace.
2
Actions--welding, grinding, riveting, straightening, facing, remachining or
resurfacing.
B-2