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TM 9-2330-398-24
APPENDIX B
MAINTENANCE ALLOCATION CHART
Paragraph
Page
Number
Title
Number
B-1
General ............................................................................................................................. B-1
B-2
Maintenance Functions .................................................................................................... B-1
B-3
Explanation of Columns in Section II, Maintenance Allocation Chart for
Semitrailer, Tank, M969A2 ............................................................................................... B-2
B-4
Explanation of Columns in Section III, Tool and Test Equipment Requirements .............. B-3
B-1. GENERAL.
Appendix B consists of three sections:
a.
Section I provides a general explanation of all maintenance and repair functions authorized at the various
maintenance levels.
b.
Section II, the maintenance allocation chart (MAC), 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.
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.
B-2. MAINTENANCE FUNCTIONS.
Maintenance functions are 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 by measuring the mechanical, pneumatic, hydraulic, or electrical characteristics of
an item and comparing those characteristics with prescribed standards.
C.
Service. To keep an item in proper operating condition by periodically cleaning (including decontaminating,
when required), preserving, draining, painting, or replenishing fuel, lubricants, chemical fluids, or gases.
d.
Adjust. To maintain or regulate, within prescribed limits, by bringing into proper or exact position or by setting
the operating characteristics to specified parameters.
e.
Align. To adjust specified variable elements of an item to bring about optimum or desired performance.
f.
Calibrate. To determine the accuracy of and cause corrections or adjustments to be made on instruments or
test, measuring, and diagnostic equipment (TMDE) used in precision measurement. Calibration 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.
B-1
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