TM 5-3810-231-12
F- TEST: Verify serviceability and detect incipient
3. Explanation of Columns in Section III
electrical or mechanical failure by measuring the
mechanical or electrical characteristics of the item
a. Reference Code. This column consists of a
and comparing those characteristics with authorized
number and a letter separated by a dash. The number
standards. Tests will be made commensurate with
references the T & TE requirements column on the
test procedures and with calibrated tools and/or test
MAC.
equipment referenced in the MAC.
G- REPLACE: Substitute serviceable components,
The letter represents the specific maintenance
assemblies and subassemblies for unserviceable
operation the item is to be used with. The letter is
counterparts or remove and install the same item
representative of columns "A" through "J" on the MAC.
when required for the performance of other
b. Maintenance Level. This column shows the
maintenance operations.
lowest level of maintenance authorized to use the
H- REPAIR: Restore to a serviceable condition by
special tool or test equipment.
replacing unserviceable parts or by any other action
c. Nomenclature. This column lists t he name or
required using available tools, equipment and skills-
identification of the tool or test equipment.
to include welding, grinding, riveting, straightening,
d. Tool Number.
This column lists the
adjusting and facing.
manufacturer's code and part number, or Federal Stock-
I- OVERHAUL: Restore an item to a completely
Number, of tools and test equipment.
serviceable
condition
(as
prescribed
by
serviceability standards developed and published by
4. Explanation of Columns in Section IV
the
commodity
commands)
by
employing
techniques of "Inspect and Repair
Only as
Necessary" (IROAN). Maximum use of diagnostic
a. Reference Code. This column consists of two
and test equipment is combined with minimum
letters separated by a dash, both of which are
disassembly during overhaul. "Overhaul" m a y be
references to section II. The first letter references
assigned to any level of maintenance except
column L and the second letter references a
organizational, provided the time, tools, equipment,
maintenance operation, column "A" through "J".
repair parts authorization, and technical skills are
b. Remarks.
This column lists information
available at that level. Normally, overhaul as
pertinent to the Maintenance Operation being
applied to end items, is limited to depot
performed, as indicated on the MAC, section II.
maintenance level.
J- REBUILD: Restore to a condition comparable to
new by disassembling to determine the condition of
each component part and reassembling using
serviceable,
rebuilt,
or
new
assemblies,
subassemblies, and parts.
e. Reference Note. This column, subdivided into
columns "K" and "L", is provided for referencing the
SPECIAL TOOL A ND TEST EQUIPMENT
REQUIREMENTS (Section III) and REMARKS (sec. IV)
that may be associated with maintenance operations
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