MAINTENANCE ALLOCATION CHART
Section I. INTRODUCTION
This section provides a general explanation of
all maintenance and repair functions authorized at
various maintenance levels.
Section II designates overall responsibility for
the performance of maintenance functions on the
identified end item or component. The implementation
of the maintenance functions upon the end item or
component will be consistent with the assigned
Section III lists the special tools and test
equipment required for each maintenance function as
referenced from Section II.
Section IV contains supplemental instructions,
explanatory notes and/or illustrations required for a
particular maintenance function.
2. Explanation of Columns in Section II
Group Number, Column 1. The assembly group
is a numerical group assigned to each assembly.
Assembly Group, Column 2. This column
contains a brief description of the components of each
Maintenance Function, Column 3. This column
lists the various maintenance functions (A through K)
and indicates the lowest maintenance level authorized
to perform these functions. The symbol designations for
the various maintenance levels are as follows:
C- Operator or crew
O Organizational maintenance
F - Direct support maintenance
H- General support maintenance
D- Depot maintenance
The maintenance functions are defined as follows:
a - Inspect. To determine serviceability of an item
by comparing its physical, mechanical, and electrical
characteristics with established standards.
b - Test. To verify serviceability and to detect
electrical or mechanical failure by use of test equipment.
c - Service. To clean, to preserve, to charge, and
to add fuel, lubricants, cooling agents, and air.
d - Adjust. To rectify to the extent necessary to
bring into proper operating range.
e - Align. To adjust specified. variable elements of
an item to bring to optimum performance.
f - Calibrate. To determine the corrections to be
made in the readings of instruments or test equipment
used in precise measurement. Consists of the
comparison of two instruments, one of which is a
certified standard of known accuracy, to detect and
adjust any discrepancy in the accuracy of the instrument
being compared with the certified standard.
g - Install. To set up for use in an operational
environment such as an emplacement, site, or vehicle.
h - Replace. To replace unserviceable items with
serviceable like items.
i - Repair.
necessary to restore an item to serviceable condition
through correction of material damage or a specific
failure. Repair may be accomplished at each level of