MAINTENANCE ALLOCATION CHART
Section I. INTRODUCTION
B-1 . SCOPE.
This section provides a general explanation of all
maintenance and repair functions authorized at the
various maintenance levels,
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 compo-
nent will be consistent with the capacities and capa-
bilities of the designated maintenance Ievels.
Section Ill lists the tools and test equipment (both
special tools and common tool sets) required for
each maintenance function as referenced from Sec-
Section IV contains supplemental instructions and
explanatory notes for a particular maintenance func-
B-2. MAINTENANCE FUNCTIONS.
Maintenance functions will be limited to and defined as
Inspect. To determine the serviceability of an
item by comparing its physical, mechanical,
and/or electrical characteristics with estab-
lished standards through examination (e.g., by
sight, sound, or feel).
Test. To verify serviceability by measuring the
mechanical, pneumatic, hydraulic, 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 (includes decontaminate, when re-
quired), to preserve, to drain, to paint, or to re-
plenish fuel, lubricants, chemical fluids, or
Adjust. To maintain or regulate, within pre-
scribed limits, by bringing into proper or exact
position, or by setting the operating character-
istics to specified parameters,
Aline. To adjust Specified variable elements of
an item to bring about optimum or desired per-
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 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.
Remove/Install. To remove and install the
same item when required to perform service or
other maintenance functions. Install maybe the
act of emplacing, seating, or fixing into position
a spare, repair part, or module (component or
assembly) in a manner to allow the proper func-
tioning of an equipment or system.
Replace. To remove an unserviceable item and
install a serviceable counterpart in its place,
Replace is authorized by the MAC and is
shown as the third position of the SMR code.