TM 11-5841-291-12
MAINTENANCE
ALLOCATION
Section I.
INTRODUCTION
C-3. Explanation of Columns in the MAC.
C-1. General.
a. Column 1, Group Number. Column
a. This section gives you a general
1 lists functional group code numbers,
explanation of all maintenance functions
the purpose of which is to identify
that are authorized at various mainte-
components, assemblies, subassemblies,
nance categories on your radar warning
and modules with the next higher assem-
system.
bly.
b. The maintenance allocation chart
(MAC) in section II designates overall
b. Column 2, Component/Assembly.
responsibility for doing the maintenance
Column 2 contains the names of compo-
functions on your radar warning system
nents, assemblies, subassemblies, and
or its components. Carrying out the
modules for which maintenance is author-
maintenance functions on the radar
ized.
warning system or its components will
be done to agree with the assigned
c. Column 3, Maintenance Function.
maintenance functions.
Column 3 lists the functions to be per-
formed on the item listed in column 2.
C-2. Maintenance Functions. The
maintenance functions on your radar
d. Column 4, Maintenance Category.
warning system are limited to those given
Column 4 specifies, by the listing of a
on the MAC. These are defined as follows:
work time figure in the appropriate sub-
column(s), the category of maintenance
a. Inspect. To determine the service-
authorized to perform the function listed
ability of an item by comparing its
in column 3. This figure represents the
physical, mechanical, and/or electrical
active time required to perform that
characteristics with established standards
maintenance function at the indicated
through examination.
category of maintenance. If the number
or complexity of the tasks within the
b. Test. To verify serviceability by
listed maintenance function vary at
measuring the mechanical or electrical
different maintenance categories, appro-
characteristics of an item and comparing
priate work time figures will be shown
those characteristics with prescribed
for each category. The work time figure
standards.
represents the average time required to
restore an item (assembly, subassembly,
c. Replace. The act of substituting a
component, module, end item, or system)
serviceable like type part, subassembly,
to a serviceable condition under typical
or module (component or assembly) for
field operating conditions. This time in-
an unserviceable counterpart.
cludes preparation time, troubleshooting
time, and quality assurance/quality con-
d. Repair. The application of main-
trol time in addition to the time required
tenance services* or other maintenance
to perform the specific tasks identified
actions** to restore serviceability to an
for the maintenance functions authorized
item by correcting specific damage, fault,
in the maintenance allocation chart. The
malfunction, or failure in a part, sub-
symbol designations for the various
assembly, module (component or assem-
maintenance categories are as follows:
bly), end item, or system.
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