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TM 5-4320-308-13
B-4. EXPLANATION OF COLUMNS IN THE MAC, SECTION II (Continued)
b.
Component/Assembly (Column 2). Column 2 contains the item names of components. assemblies,
subassemblies, and modules for which group numbers (column 1) are assigned and for which maintenance is
authorized
c. Maintenance Function (Column 3). Column 3 lists the functions to be performed on items listed in column 2.
(Function definitions are contained in paragraph B-3. )
d.
Maintenance Categories and Work Times (Column 4). The maintenance levels, Unit and Intermediate, are
listed on the Maintenance Allocation Chart with individual columns that include the work times for maintenance
functions at each maintenance level. Work time presentations such as "0.1" indicate the average time it
requires a maintenance level to perform a specified maintenance function. If a work time has not been
established, the columnar presentation shall indicate “ ". Maintenance levels higher than the level of
maintenance indicated are authorized to perform the indicated function
e.
Tools and Test Equipment (Column 5 and Section III). Common tool sets (not individual tools), special tools,
test, and support equipment required to perform maintenance functions are listed alphabetically in Section III
with a reference number to permit cross-referencing to column 5 in the MAC. In addition, the maintenance
category authorized to use the device is listed along with the item National stock number (NSN) and, if
applicable, the tool number to aid in identifying the tool/device.
f.
Remarks (Column 6 and Section IV). Remarks (identified by an alphabetic code in column 6) and other notes
(identified by a number in parentheses in the applicable column) are listed in Section IV to provide a ready
reference to the definition of the remark/note.
B-3
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