TM 5-4320-200-13 & P
MAINTENANCE ALLOCATION CHART
This section provides a general explanation of all mainten-
ance and repair functions authorized at various maintenance levels.
The Maintenance Allocation Chart (MAC) in section II desig-
nates overall responsibility for the performance of maintenance func-
tions on the identified end item or component. The implementation of
the maintenance functions upon the end item or component will be con-
sistent with the assigned maintenance functions.
Section III lists the special tools and test equipment
required for each maintenance function as referenced from section II.
Section IV contains supplemental instructions on explanatory
notes for a particular maintenance function.
B-2. MAINTENANCE FUNCTIONS.
To determine the serviceability of an item by com-
paring its physical, mechanical and/or electrical characteristics with
established standards through examination.
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
prope;operating condition, i.e., to clean (decontaminate), to pre-
serve, to drain, to paint, or to replenish fuel, lubricants, hydraulic
fluids, or compressed air supplies.
To maintain, within prescribed limits, by bringing
into proper or exact position, or by setting the operating characteris-
tics to specified parameters.
Align. To adjust specified variable elements of an item to
bring about optimum or desired performance.
Calibrate. To determine and cause corrections to be made or
to be adjusted on instruments or test measuring and diagnostic equip-
ments 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
a. Inspect .