TM 5-6675-331-14&P
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 levels.
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 .
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 and 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 fluid, or compressed air
supplies.
d.
Adjust. To maintain, within prescribed limits, by bringing into proper or exact position, or by setting the operating
characteristics to specified parameters.
e.
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.
f.
Replace. The act of substituting a serviceable part, subassembly, or module (component or assembly) for an
unserviceable counterpart.
g.
Repair. The application of maintenance services or other maintenance actions to restore serviceability to an
item by correcting specific damage, fault, malfunction, or failure in a part, subassembly, module (component or
assembly), and item, or system.
B-1
