TM 11-6625-3053-14
APPENDIX B
MAINTENANCE ALLOCATION CHART
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 responsibility for the performance
of maintenance functions on the identified end item or component. The implementation of the maintenance
functions upon the end item or component will be consistent with the assigned maintenance functions.
c.
Section III lists the special tools and test equipment 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 standards through examination.
b.
Test.
To verify serviceability 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
(includes decontaminate, when required), to preserve, to drain, to paint, or to replenish fuel, lubri- cants, chemical fluids,
hydraulic fluids, compressed air supplies or gases.
d.
Adjust.
To maintain, within prescribed limits, by bringing 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 or desired
performance.
f.
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.
g.
Install.
The act of emplacing, seating or fixing into position an item, part, or module (component or
assembly) in a manner to allow the proper functioning of an equipment or system.
h.
Replace. The act of substituting a serviceable like type part, subassembly or module (component or
assembly) for an unserviceable counterpart.
B-1
