TM 9-6140-200-14
Actions- welding, grinding, riveting, straightening, facing, rematching and
/or resurfacing.
j. Overhaul. That maintenance effort (service or action) prescribed to restore
an item to completely serviceable/operational condition as required 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 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 equipment/components.
B-3. Explanation of Columns in the MAC, Section II.
a. Column I, Group Number. Column I lists functional group code numbers, the
purpose of which is to identify maintenance significant components,
assemblies, subassemblies, and modules with the next higher assembly. End
item group number shall be "0".
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 list the functions to be performed
on the item listed in column 2. (See paragraph c-3 for detailed explanation of
these functions.)
B-3
