Section I. Introduction
This section provides a general explanation of all maintenance and repair functions authorized at various
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
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.
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.
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.
Adjust. To maintain, within prescribed limits, by bringing into proper or exact position, or by setting the operating
characteristics to the specified parameters.