TM 11-6625-1831-13
j.
Overhaul. That maintenance effort (service/action) necessary to restore an item to a completely
serviceable/operational condition as prescribed by maintenance standards (i.e., DMWR) in appropriate
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.
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.
D-3.
Column Entries
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 noun 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. When items are listed without maintenance functions, it is solely for purpose of having the group
numbers in the MAC and RPSTL coincide.
d.
Column 4, Maintenance Category.
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 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.
The number of task-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 operation conditions.
This time includes preparation time,
troubleshooting time, and quality assurance/quality control time in addition to the time required to perform the
specific tasks identified for the maintenance functions authorized in the maintenance allocation chart.
Subcolumns of column 4 are as follows:
C - Operator/Crew
O - Organizational
F - Direct Support
H - General Support
D - Depot
e.
Column 5, Tools and Equipment. Column 5 specifies by code, those common tool sets (not individual
tools) and special tools, test. and support equipment required to perform the designated function.
f.
Column 6, Remarks. Column 6 contains an alphabetic code which leads to the remark in section IV,
Remarks, which is pertinent to the item opposite the particular code.
D-4.
Tool and Test Equipment Requirements (Sect. III)
a.
Tool and Test Equipment Reference Code. The numbers in this column coincide with the numbers used in
the tools and equipment column of the MAC. The numbers indicate the applicable tool or test equipment for
the maintenance functions.
D-2
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