Group 18
G-Replace. Substitute serviceable components,
assemblies and subassemblies for unservice-
able counterpart or remove and install the
same item when required for the perform-
ance of other maintenance operations.
H-Repair. Restore to a serviceable condition
by replacing unserviceable parts or by any
other action required using available tools,
equipment and skills-to include welding,
grinding, riveting, straightening, adjusting
and facing.
I-Overhuul. Restore an item to a completely
serviceable condition (as prescribed by serv-
iceability standards developed and published
by the commodity command) by employing
technique of “Inspect and Repair Only as
Necessary” (IROAN). Maximum use of di-
agnostic and test equipment is combined
with minimum disassemble y during overhaul.
“Overhaul” may be assigmd to any level of
maintenance except organizational, provided
the time, tools, equipment, repair parts au-
thorization, and technical skills are available
at that level. Normally, overhaul as applied
to end items, is limited to depot maintenance
level.
J-Rebuild. Restore to a condition comparable
to new by disassembling to determine the
condition of each component part, and re-
assembling using serviceable, rebuilt, or new
assemblies, subassemblies, and parts.
e. Reference Note. This column, subdivided
into columns “K” and “L,” is provided for ref-
erencing the special tool and test equipment
requirements (sec. III) and remarks (sec. IV)
that may be associated with maintenance oper-
ations (sec. II).
3. Explanation of Columns in Section III
a. Reference Code. This column consists of
a number and a letter separated by a dash.
The number references the T&TE require-
ments column on the MAC. The letter repre-
sents the specific maintenance operation the
item is to be used with. The letter is represen-
tative of columns A through J on the MAC.
b. Maintenance Level. This column shows
the lowest level of maintenance authorized to
use the special tool or test equipment.
c. Nomenclature. This column lists the name
or identification of the tool or test equipment.
d. Tool Number. This column lists the man-
ufacturer’s code and part number, or Federal
stock number, of tools and test equipment.
4. Explanation of Columns in Section IV
a. Reference Code. This column consists of
two letters separated by a dash, both of which
are references to section II. The first letter
references column L arid the second letter ref -
erences a maintenance operation, columns A
through J.
b. Remarks. This column lists information
pertinent to the maintenance operation being
performed, as indicated on the MAC (sec. H).
Section II. MAINTENANCE ALLOCATION CHART
AGO 10117A
27
