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TM 5-2420-222-20-3
APPENDIX B
MAINTENANCE ALLOCATION CHART
Page
Section I
Introduction .......................................................................................................................
B-1
Section II
Maintenance Allocation Chart ...........................................................................................
B-4
Section III
Tool and Test Equipment Requirements ..........................................................................
B-23
Section IV
Remarks ...........................................................................................................................
B-25
Section I. INTRODUCTION
Page
Page
Explanation of Columns in.............................
Explanation of Columns in
Remarks, Section IV ...............................
B-3
Tool and Test Equipment
Explanation of Columns in.............................
Requirements, Section III ....................
B-3
the MAC, Section II .................................
B-2
General ...................................................
B-1
................................................................
Maintenance Functions ...........................
B-1
GENERAL
This section provides a general explanation of all maintenance and repair functions authorized at the various maintenance
levels.
The Maintenance Allocation Chart (MAC) in Section II designates overall authority and responsibility for 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 levels.
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.
Section IV contains supplemental instructions and explanatory notes for a particular maintenance function.
MAINTENANCE FUNCTIONS
Maintenance functions will be limited to and defined as follows:
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).
Test. To verify serviceability by measuring the mechanical, pneumatic, hydraulic, or electrical characteristics of an item
and comparing those characteristics with prescribed standards.
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.
Adjust. To maintain or regulate, within prescribed limits, by bringing into proper or exact position, or by setting the
operating characteristics to specified parameters.
Aline. To adjust specified variable elements of an item to bring about optimum or desired performance.
Change 1 B-1
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