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k. Rebuild. Consists of those services/actions
necessary for the restoration of unserviceable equip-
ment 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.
D-4. Explanation of Columns in the MAC, Section H
a. Column (1), Group Number. Column 1 lists func-
tional group code numbers which are assigned to iden-
tify maintenance significant components, assemblies,
subassemblies, and modules to their next higher
assembly.
b. Column (2), Component/Assembly. 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. Column (3), Maintenance Function. Column 3
lists the functions to be performed on items listed in
column 2. (Function definitions are contained in
paragraph D-3.)
d.
Column (4), Maintenance Level. T h e
maintenance levels, Unit, Intermediate, and Depot,
are allotted separate subcolumns within column 4.
Entry of a work time figure (such as 1.0, 0.2) in a sub-
column indicates that that level is authorized to per-
form the function listed in column 3, and the average
time required to do the function is the work time
figure. If the number or complexity of tasks within a
maintenance function varies from one maintenance
level to another, the applicable work time figure for
each level will be entered for that function. The work
time figure represents the average time it takes to
restore a component/assembly to a serviceable condi-
tion under a typical field operating environment.
TM 5-4930-226-12&P
e.
Column (5), Tools and Equipment. Column 5
specifies, by code, common tool sets (not individual
tools from those sets), common TMDE, and special
tools, TMDE, and support equipment required to per-
form a designated function. The code in Column 5
keys to the listing in Section III of the MAC.
f. Column (6), Remarks. This column, when ap-
plicable, contains a letter code which is keyed to an ex-
planation of the code contained in Section IV of the
MAC.
D-5. Explanation of Columns in the MAC, Section
III
a. Column (1), Tool or Test Equipment Reference
Code. The tool or test equipment reference code cor-
relates with a code used in the MAC, Section II, Col-
umn 5.
b. Column (2), Maintenance Category. The lowest
category of maintenance authorized to use the tool or
test equipment.
c. Column (3), Nomenclature. Name or identifica-
tion of the tool or test equipment.
d.
Column (4), National/NATO Stock Number.
The national stock number of the tool or test
equipment.
e. Column (5), Tool Number. The manufacturer’s
part number.
D-6. Explanation of Columns in the MAC, Section
IV
a. Column (1), Reference Code. The code recorded
in Column 6, Section II.
b. Column (2), Remarks. This column lists infor-
mation pertinent to the maintenance function being
performed as indicated in the MAC, Section II.
Change 4 D-3
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