k . Rebuild. Consists of those services/actions necessary for the restoration of unser-
viceable 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 equipments/components.
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 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. (For detailed explanation of these functions, see paragraph B-2. )
d. 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 perform
the maintenance function at the indicated level of maintenance. If the number or complexity
of the tasks within the listed maintenance function vary at different maintenance levels
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 y, component, module, end item, or system) to a serviceable condition.
The symbol designations for the various maintenance levels are as follows:
Operator or crew
Direct support maintenance
General support maintenance
Column 5 specifies, by code, those common tool
Column 5, Tools and Equipment.
sets (not individual tools) and special tools, test, and support equipment required to perform
the designated function.
Column 6, Remarks. This column shall contain a letter code in alphabetical order
which shall be keyed to the remarks contained in Section IV.
COLUMN ENTRIES USED IN TOOL AND TEST EQUIPMENT REQUIREMENTS.
The tool and test equipment
Column 1, Tool or Test Equipment Reference Code.
reference code correlates with a maintenance function on the identified end item or component.
Column 2, Maintenance Level. The lowest level of maintenance authorized to use the
tool or test equipment.
Column 3, Nomenclature. Name or identification of the tool or test equipment.
The National or or NATO stock number
Column 4, National/NATO Stock Number.
of the tool or test equipment.
Column 5, Tool Number. The manufacturer's part number.
EXPLANATION OF COLUMNS IN SECTION IV.
The code scheme recorded in column 6, Section II.
Remarks. This column lists information pertinent to the maintenance function being
performed as indicated on the MAC, Section II.