Quantcast Explanation of Columns in the MAC - TM-9-2330-329-14-P0694

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TM 9-2330-329-14&P
MAINTENANCE ALLOCATION CHART (MAC)
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Explanation of Columns in the MAC--Continued
Column (2)--Component/Assembly. Column (2) contains the item names of components,
assemblies, subassemblies, and modules for which maintenance is authorized.
Column (3)--Maintenance Function. Column (3) lists the functions to be performed on the item
listed in Column (2). (For a detailed explanation of these functions, refer to "Maintenance
Functions" outlined above).
Column (4)--Maintenance Level. Column (4) specifies each level of maintenance authorized to
perform each function listed in Column (3) by indicating work time required (expressed as man-
hours in whole hours or decimals) in the appropriate subcolumn. This work time figure represents
the active time required to perform that maintenance function at the indicated level of
maintenance. If the number or complexity of the tasks within the listed maintenance function
varies at different maintenance levels, appropriate work time figures are to be shown for each
level. 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 (including any necessary
disassembly/assembly time), troubleshooting/fault location time, and quality assurance time in
addition to the time required to perform the specific tasks identified for the maintenance functions
authorized in the MAC. The symbol designations for the various maintenance functions are as
follows:
Field:
C--Operator or crew maintenance
O--Unit maintenance
F-- Direction support maintenance
Sustainment:
H--General support maintenance
D--Depot maintenance
NOTE
The "L" maintenance level is not included in Column (4) of the MAC. Functions to this
level of maintenance are identified by a work time figure in the "H" column of Column (4),
and an associated reference code is used in the REMARKS Column (6). This code is
keyed to the remarks and the SRA complete repair application is explained there.
Column (5)--Tools and Equipment Reference Code. Column (5) specifies, by code, those
common tool sets (not individual tools), common Test, Measurement and Diagnostic Equipment
(TMDE), and special tools, special TMDE and special support equipment required to perform the
designated function. Codes are keyed to the entries in the Tools and Test Equipment.
Column (6)--Remarks Code. When applicable, this column contains a letter code, in
alphabetical order, which is keyed to the remarks table entries.
Explanation of Columns in the Tools and Test Equipment Requirements
Column (1), Tool or Test Equipment Reference Code. The tool or test equipment reference code
correlates with a code used in Column (5) of the MAC.
Column (2), Maintenance Level. The lowest level of maintenance authorized to use the tool or
test equipment.
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