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 TM 5-2010-205-14
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 levels.
b.
The Maintenance Allocation Chart (MAC) in section II designates overall responsibility for the performance of
maintenance functions on the identified and item or component and the work measurement time required to perform the
functions upon the end item or component will be consistent with the assigned maintenance functions.
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 fluids 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.
Align . To adjust specified variable elements of an item 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 equipment 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 implacing, 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.
B-1
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