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TM 10-4930-245-13&P
APPENDIX B
MAINTENANCE ALLOCATION CHART
Section I.
INTRODUCTION
B-1. GENERAL.
a.
This section provides a general explanation of all maintenance and repair function authorized at various
maintenance categories.
b.
The Maintenance Allocation Chart (MAC) in Section II designates overall authority and responsibility for
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 III lists the tools and test equipment (both special tools and common tool sets) 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 are 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 by measuring the mechanical, pneumatic, hydraulic, 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, lubricants,
chemical fluids, or gases.
d.
Remove/Install. To remove and install the same item when required to perform service or other
maintenance functions. Install may be 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 functioning of an equipment or
system.
e.
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 3rd position code of the SMR code.
f.
Repair.
The
application
of
maintenance
services,
including
fault
location/troubleshooting,
removal/installation, and disassembly/assembly procedures, and maintenance actions to identify troubles,
and restore serviceability to an item by correcting specific damage, fault, malfunction, or failure in a part,
subassembly, module (component or assembly) end item, or system.
B-1
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