MAINTENANCE ALLOCATION CHART
Section I. INTRODUCTION
a. This section provides a general explanation of all maintenance and repair functions authorized
at various maintenance categories.
b. The Maintenance Allocation Chart (MAC) in section II designates overall authority and respon-
sibility for the performance of maintenance functions on the identified end item or component. The
application of the maintenance functions on the end item or component will be consistent with the
capacities and capabilities of the designated maintenance categories.
c. Section Ill lists the tools and test equipment (both special tools and common tool sets) required
for each maintenance function as referenced from section Il.
d. Section IV contains supplemental instructions and explanatory notes for a particular mainte-
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 standards through examination (eg, by sight,
sound, or touch).
b. Test. To verify serviceability by measuring the mechanical, pneumatic, hydraulic, and/or
electrical characteristics of an item and comparing those characteristics with prescribed standards.
c. Service. Operation required periodically to keep an item in proper operating condition, ie, to
clean (includes decontaminating, when required), preserve, drain, paint, or replenish fuel,
d. Adjust. To maintain or regulate, within prescribed limits, by bringing Into proper or exact
position, or by setting operating characteristics to specified parameters.
e. Anne, To adjust specified variable elements of an item to bring about optimum or desired
f. Calibrate. To determine and cause corrections to be made, or to be adjusted on instruments or
test, measuring, and diagnostic equipment used In precision measurement. Consists of 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.