TM 32-5835-001-24 & P
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 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
j. Overhaul. 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.
k. Rebuild. Consists of those services/actions necessary for the restoration of
unserviceable equipment to a like new condition in accordance with original manu-
facturing 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 equipments/
B-3. Column Entries Used in the MAC.
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
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
oncthe item listed in column 2. (For detailed explanation of these functions, see
d. 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 maintenance authorized to perform the function
listed in column 3. This figure represents the active time required to perform the
maintenance function, at the indicated level of maintenance.
(2) If the number or complexity of the tasks within the listed maintenance func-
tion vary at different maintenance, appropriate "work time" figures will be shown for
each level. The number of man-hours specified by the "work time" figure represents
the average time required to restore an item (assembly, subassembly, component,
module, end item, or system) to a serviceable condition under typical field operating
conditions. This time includes preparation time, troubleshooting time, and quality
assurance /quality control time in addition to the time required to perform the specific
Services - inspect, test, service, adjust, align, calibrate, or replace.
Action - welding, grinding, riveting, straightening, facing, remachining, or