LAUNDRY ADVANCED SYSTEM
MAINTENANCE ALLOCATION CHART (MAC)
Explanation of Columns in the MAC -- Continued
Column (4) -- Maintenance Level. Column (4) specifies each level of maintenance authorized to perform each
function listed in Column (3), by indicating work time (expressed as manhours in whole hours or decimals) in the
appropriate subcolumn. This work time 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 functions
varies at different maintenance levels, appropriate figures are to be shown for each level. The work time figure
represents the average work time 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/quality control 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 levels are as
C -- Operator or crew maintenance
O -- Unit maintenance
F -- Direct support maintenance
H -- General support maintenance
L -- Specialized repair activity (SRA)
D -- Depot maintenance
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 in the H 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 entries in the tools
and test equipment table.
Column (6) -- Remarks Code. When applicable this column shall contain a letter code, in alphabetic order, which is
keyed to the remarks table entries.
Explanation of Columns in Tools and Test Equipment Requirements
Column (1) -- Tool or Test Equipment Reference Code. The tool and 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.
Column (3) -- Nomenclature. Name or identification of the tool or test equipment.
Column (4) -- National Stock Number (NSN). The NSN of the tool or test equipment.
Column (5) -- Tool Number. The manufacturers part number, model number, or type number.
B--5. EXPLANATION OF COLUMNS IN REMARKS, SECTION IV.
Column (1) -- Remarks Code. The code recorded in column (6) of the MAC.
Column (2) -- Remarks. This column lists information pertinent to the maintenance function being performed as
indicated in the MAC.