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TM 10-4320-343-14
APPENDIX B
MAINTENANCE ALLOCATION CHART (MAC)
SECTION I.
INTRODUCTION
B.1 THE ARMY MAINTENANCE SYSTEM MAC.
B.1.1 Introduction.
This introduction (Section I) provides
all levels of maintenance and repair functions authorized
levels under the standard Army Maintenance System concept
a general explanation of
at various maintenance
.
B.1.2 Maintenance Allocation Chart Section II.
The Maintenance Allocation Chart (MAC) in
section II designates overall authority and responsibility for the performance of
maintenance functions on the identified end item or component.
The application of
the maintenance functions to the end item or component will be consistent with the
capacities and capabilities of the designated maintenance levels, which are shown
on the MAC in column (4) as:
Unit - includes two subcolumns, C (operator/crew) and O (unit)
maintenance
Direct support - includes an F subcolumn
General support - includes an H subcolumn
Depot - includes a D subcolumn
B.1.3 Tools and Test Equipment
Introduction.
Section III lists the tools and test
equipment (both special tools and common tool sets) required for each maintenance
function as referenced from section II.
B.1.4 Supplemental Instructions Introduction.
Section IV contains supplemental
instructions and explanatory notes for a particular maintenance function.
B.2 MAINTENANCE FUNCTIONS.
Maintenance functions are limited to and defined as follows:
B.2.1 Inspect.
To determine the serviceability of an item by comparing its physical,
mechanical, and/or electrical characteristics with established standards through
examination (e.g., by sight, sound, or feel).
B.2.2 Test.
To verify serviceability by measuring the mechanical, pneumatic,
hydraulic,
or electrical characteristics of an item and comparing those
characteristics with prescribed standards.
B.2.3 Service.
Operations required periodically to keep an item in proper operating
c o n d i t i o n , i . e . ,
to clean (includes decontaminate, when required), to preserve, to
drain, to paint, or to replenish fuel, lubricants, chemical fluids, or gases.
B.2.4 Adjust.
To maintain or regulate, within prescribed limits, by bringing into
proper or exact position, or by setting the operating characteristics to specified
parameters.
B.2.5 Align.
To adjust specified variable elements of an item to bring about optimum
or desired performance.
B-1
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