TM 10-8340-226-13&P
APPENDIX B
MAINTENANCE ALLOCATION
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 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.
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 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.
b. Test. To verify serviceability and to 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 operational 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 the specified parameters.
e. Alien. To adjust specified variable elements of an item to bring 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 equipments 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.
B-1
