TM 5-4310-376-14
MAINTENANCE ALLOCATION
Section I. INTRODUCTION
B-1. GENERAL
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 responsibility
of the performance of maintenance functions on the identified end item or component. The application of the
maintenance functions to 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 tools sets) required for
each maintenance function as referenced from section Il.
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 standards through examination (e.g., by sight, sound or feel).
b. Test. To verify serviceability and to detect incipient failure by measuring the mechanical 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
(decontaminate), to preserve, to drain, to paint, or to replenish fuel, lubricants, hydraulic fluids, or com-
pressed air supplies.
d. Adjust. To maintain, or regulate, within prescribed limits, by bringing into proper or exact position, or
by setting the operating characteristics to the specified parameters.
e. Align. To adjust specified variable elements of an item to bring about an optimum or desired
performances.
f. Calibrate. To compare an instrument (measurement standard or item of test, measurement and
diagnostic equipment) of unverified accuracy with an instrument of known and greater accuracy to detect and
correct any discrepancy in the accuracy of the unverified instrument.
g. Remove//nsta//. To remove and install the same item when required to perform service or other
maintenance functions. Install may be the act of emplacing, setting, or fixing into position a spare, repair part,
or module (component or assembly) in a manner to allow the proper functioning of the equipment or system.
h. Replace. To remove an unserviceable item and install a serviceable counterpart in its place.
"Replace" is authorized by the MAC as shown in the 3rd position code of the SMR code.
B-1
