ARMY TM 9-2815-254-24
AIR FORCE TO 38G1-94-2
MAINTENANCE ALLOCATlON CHART
This section provides a general explanation of all maintenance and repair functions authorized at various main-
The Maintenance Allocation Chart (MAC) in section II designates overall authority and responsibility for the
performance of maintenance functions on the diesel engine and its components. The application of the mainte-
nance functions to the engine or components will be consistent with the capacities and capabilities of the desig-
nated maintenance categories.
Section III lists the tools and test equipment (both special tools and common tool sets) required for each mainte-
nance function as referenced from section II.
Section IV contains supplemental instructions and explanatory notes for particular maintenance functions.
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 char-
acteristics with established standards through examination (e.g., by sight, sound, or feel).
Test. To verify serviceability by measuring the mechanical, pneumatic, 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 (include
decontaminate, when required), to preserve, to drain, to paint, or to replenish fuel, lubricants, chemical fluids,
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.