ANCILLARY EQUIPMENT FO RLOW VELOCITY AIR DROP SYSTEMS (LVADS)
MAINTENANCE ALLOCATION CHART (MAC)
THIS WORKPACKAGE COVERS:
Explanation of Columns in the MAC
Explanation of Columns in Tool and Test Equipment Requirements
Explanation of Column in Remarks
The Army Maintenance System MAC
This section provides a general explanation of all maintenance and repair functions authorized at various maintenance
levels under the standard Army Maintenance System concept.
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,
which are shown in the MAC in column (4) as:
Unit includes two sub-columns, C (operator/crew) and O (unit) maintenance
Direct Support includes an F sub-column
General Support includes an H sub-column
Depot includes a sub-column
The tools and test equipment requirements (immediately following the MAC) list the tools and test equipment (both
special tools and common tool sets) required for each maintenance function as referenced from the MAC.
The remarks (immediately following the tools and test equipment requirements) contain supplemental instructions and
explanatory notes for a particular maintenance function.
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 (e.g. by sight, sound, feel, etc.).
Test. To verify serviceability by measuring the mechanical, pneumatic, hydraulic, or electrical characteristics of an
item and comparing those characteristics with prescribed standards.
Service. Operations, periodically required, to keep an item in proper operating condition, i.e., to clean (includes
decontaminate, when required), to preserve, to drain, to paint, or to replenish fuel, lubricants, chemical fluids, or gases.
Adjust. To maintain or regulate, within prescribed limits, by bringing into proper or exact position, or by setting the
operating characteristics to specified parameters.
Align. To adjust specified variable elements of an item to bring about optimum or desired performance.
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