TM 3-1040-280-20&P
B-2.
MAINTENANCE FUNCTIONS (CONT).
j.
Overhaul. That maintenance effort (service/
action) prescribed to restore an item to a completely
serviceable/operational
condition
as
required
by
maintenance
standards
in
appropriate
technical
publications (i.e., DMWR). 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
equipment/components.
B-3.
EXPLANATION OF COLUMNS IN THE MAC,
SECTION II.
a.
Column (1), Group Number. Column (1) lists
functional group code numbers, the purpose of which is
to
identify
maintenance
significant
components,
assemblies, subassemblies, and modules with the next
higher assembly.
b.
Column (2), Component/Assembly. Column (2)
contains
the
names
of
components,
assemblies,
subassemblies, and modules for which maintenance is
authorized.
c.
Column (3), Maintenance Function. Column (3)
lists the functions to be performed on the item listed in
column (2).
d.
Column (4), Maintenance Level. Column (4)
specifies, by the listing of a work time figure in the
appropriate subcolumn(s), the 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 level
of maintenance. If the number or complexity of the
tasks within the listed maintenance function vary at
different maintenance level, appropriate work time
figures will 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/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. The symbol
designations for the various maintenance levels are as
follows:
C............................ Operator or Crew
O ........................... Unit Maintenance
F ............................ Intermediate
Direct
Support
Maintenance
H............................ Intermediate General Support
Maintenance
L ............................ Specialized
Repair
Activity
(SRA)
D............................ Depot Maintenance
e.
Column (5), Tools and Equipment. Column (5)
specifies, by code, those common tool sets (not
individual tools) and special tools, TMDE, and support
equipment required to perform the designated function.
f.
Column (6), Remarks. This column shall, when
applicable, contain a letter code, in alphabetic order,
which shall be keyed to the remarks contained in section
IV.
B-4.
EXPLANATION OF COLUMNS IN TOOL AND
TEST EQUIPMENT REQUIREMENTS, SECTION III.
a.
Column (1), Reference Code. The tool and test
equipment reference code correlates with a code used
in the MAC, Section II, column (5).
b.
Column (2), Maintenance Level. The lowest
level of maintenance authorized to use the tool or test
equipment.
c.
Column
(3),
Nomenclature.
Name
or
identification of the tool or test equipment.
d.
Column (4), National Stock Number. The
National stock number of the tool or test equipment.
e.
Column (5), Tool Number. The manufacturer's
part number.
B-5.
EXPLANATION OF COLUMNS IN REMARKS,
SECTION IV.
a.
Column (1), Reference Code. The code
recorded in column (6), Section II.
b.
Column (2), Remarks. This column lists
information pertinent to the maintenance function being
performed as indicated in the MAC, Section II.
B-2
