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TM 5-4320-228-13&P
APPENDIX B
MAINTENANCE ALLOCATION CHART
Section I.
Introduction
B-1.
GENERAL.
a.
This section provides a general explanation of all maintenance
and repair functions authorized at various maintenance levels.
b.
The Maintenance Allocation Chart (MAC) in section II designates
overall responsibility for the performance of maintenance functions on
the identified end item or component.
The implementation of the main-
tenance functions upon the end item or component will be consistent
with the assigned maintenance functions.
c. Section III lists the special tools and test equipment requi
for each maintenance function as referenced from section II.
d.
Section IV contains supplemental instructions on explanatory
notes for a particular maintenance function.
B-2.
MAINTENANCE FUNCTIONS.
a.
Inspect.
To determine the serviceability of an item by com-
paring its physical, mechanical and/or electrical characteristics with
established standards through examination.
b.
Test.
To verify serviceability and detect incipient failure by
measuring the mechanical or electrical characteristics of an item and
comparing those characteristics with prescribed standards.
Service.
Operations required periodically to keep an item in
proper operating condition, i.e., to clean (decontaminate), to
preserve, to drain, to paint, or to replenish fuel, lubricants,
hydraulic fluids, or compressed air supplies.
d.
Adjust.
To maintain, within prescribed limits, by bringing
into proper or exact position, or by setting the operating charac-
teristics to specified parameters.
e.
Align.
To adjust specified variable elements of an item to
bring about optimum or desired performance.
f.
Calibrate.
To determine and cause corrections to be made or to
be adjusted on instruments or test measuring and diagnostic equipments
used in precision measurement.
Consists of comparisons of two instru-
ments, one of which is certified standard of known accuracy, to detect
one adjust any discrepancy in the accuracy of the instrument being
compared.
B-1
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