TM 5-4310-227-15
MAINTENANCE ALLOCATION
INTRODUCTION
Section I.
O/C-Operator or crew
C-1. General
O-Organizational maintenance
a. Section I. This provides a general ex-
F-Direct support maintenance
planation of all maintenance and repair func-
H-General support maintenance
D-Depot maintenance
tions authorized at various maintenance levels.
(2) The Maintenance Operations are de-
b. Section II. This designates overall re-
defined as follows -
sponsibility for the performance of mainte-
nance operations on the identified end item or
(a) A-Service.
Operations required
component. The implementation of the mainte-
periodically to keep the item in
nance tasks upon the end item or component
proper operating condition, i. e., to
will be consistent with the assigned mainte-
clean, preserve, drain, paint, and
nance operations.
replenish fuel, lubricants, hydra-
c. No special tools and test equipment re-
ulic, and deicing fluids, or compres-
quired.
sed air supplies.
d. Section III. This section contains supple-
( b ) B - A d j u s t . Regulate periodically
mental instructions, explanatory notes and/or
Adjust-
to prevent malfunction.
illustrations required for a particular mainte-
ments will be made commensurate
nance function
with adjustment procedures and
specifica-
associated
equipment
C-2. Explanation of Columns in Section II
tions.
( c ) C-Aline.
Adjust two or more
a. Functional Group Number. The func-
components of an eletrical or me-
tional group is a numerical group set up on a
chanical system so that their func-
functional basis. The applicable functional
tions are properly synchronized or
grouping indexes (obtained from TB 750-93-
adjusted.
1 Functional Grouping Codes) are listed on the
(d) D-Calibrate. Determine, check, or
MAC in the appropriate numerical sequence.
rectify the graduation of an instru-
These indexes are normally set up in accord-
ment, weapon, or weapons system
ance with their function and proximity to each
or components of a weapons sys-
other.
tem.
b. Component Assembly Nomenclature. This
( e ) E-Inspect. Verify serviceability
column contains a brief description of the com-
and detect incipient electrical or
ponents of each functional group.
mechanical failure by close visual
c. Maintenance Operations and Maintenance
examination.
Levels. This column lists the various mainte-
nance operations ("A" through "J") and in-
(f) F-Test. Verify serviceability and
detect incipient electrical or me-
dicates the lowest maintenance level authorized
to perform these operations.
chanical failure by measuring the
mechanical or electrical character-
(1) The symbol designations for the var-
istics of the item and comparing
rious maintenance levels are as fol-
those characteristics with author-
lows: