TM 3-4230-218-12&P
APPENDIX B
MAINTENANCE ALLOCATION CHART (MAC)
Section I.
INTRODUCTION
B-1. GENERAL.
a.
This section provides a general explanation of all maintenance and
repair functions authorized at the various maintenance levels.
b.
The Maintenance Allocation Chart (MAC) in Section II designates
overall authority and responsibility for the performance of maintenance func-
tions on the identified end item or components.
The application of the mainte-
nance functions to the end item or component will be consistent with the
capacities and capabilities of the designated maintenance categories.
c.
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.
d.
Section IV contains supplemental instructions and explanatory notes
for a particular maintenance function.
B-2.
MAINTENANCE FUNCTIONS.
Maintenance functions will be limited to and defined as follows:
a. Inspect.
To determine the serviceability of an item by comparing its
physical, mechanical, and/or electrical characteristics with established stan-
dards through examination (e.g., by sight, sound, or feel).
b.
Test.
To verify serviceability by measuring the mechanical, pneu-
matic, hydraulic, or electrical characteristics of an item and comparing those
characteristics with prescribed standards.
c.
Service.
Operations required periodically to keep an item in proper
operating condition, i.e., to clean (includes decontaminate, when required), to
preserve, to drain, to paint, or to replenish fuel, lubricants, chemical fluids,
or gases.
d.
Adjust.
To maintain or regulate, within presribed limits, by bring-
ing into proper or exact position, or by setting the operating characteristics
to specified parameters.
e.
Aline.
To adjust specified variable elements of an item to bring
about optimum performance.
B-1
