MAINTENANCE ALLOCATION CHART
Section I. INTRODUCTION
O/C - Operator or crew
1 . Ge ne ra l
O - Organizational maintenance
a. Section I provides a general explanation
F
- Direct support maintenance
of all maintenance and repair functions author-
H - General support maintenance
ized at various maintenance levels.
D - Depot maintenance
b. Section II designates overall responsibility
The Maintenance Operations are defined as
for the performance of maintenance operations
follows:
on the identified end item or component. The
A-SERVICE: Operations required periodi-
implementation of the maintenance tasks upon
cally to keep the item in
the end item or component will be consistent
proper operating condition,
with the assigned maintenance operations.
i.e., to clean, preserve, drain,
c. Section III lists the special tools and test
paint, and replenish fuel,
equipment required for each maintenance oper-
lubricants, hydraulic, and de-
ation as referenced from section II.
icing fluids, or compressed
air supplies.
d. Section IV contains supplemental instruc-
tions, explanatory notes, and/or illustrations
B--ADJUST: Regulate periodically to prevent
required for a particular maintenance function.
malfunction. Adjustments will
be made commensurate with
2 . Ex pla na t ion of Colum ns in Se c t ion I I
adjustment procedures and
associated equipment specifi-
a. Functional Group Number. The functional
cations.
group is a numerical group set up on a func-
C-ALINE: Adjust two or more components
tional basis. The applicable functional group-
of an electrical or mechanical
ing indexes (obtained from TB 750-93-1
system so that their functions
Functional Grouping Codes) are listed on the
are properly synchronized or
MAC in the appropriate numerical sequence.
adjusted.
These indexes are normally set up in accord-
D-CALIBRATE: Determine, check, or rectify
ance with their function and proximity to each
the graduation of an in-
other.
strument, weapon, or
b. Component Assembly Nomenclature. This
weapons system or com-
column contains a brief description of the
ponents of a weapons sys-
components of each functional group.
tem.
c. Maintenance Operations and Maintenance
E-INSPECT: Verify serviceability and detect
Levels. This column lists the various mainte-
incipient electrical or me-
nance operations (A through J) and indicates
chanical failure by close
the lowest maintenance level authorized to
visual examination.
perform these operations.
F-TEST: Verify serviceability and detect
incipient electrical or mechanical
The symbol designations for the various
maintenance levels areas follows:
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AGO 10139A