B-2. USE OF THE MAINTENANCE ALLOCATION CHART.
Nomenclatures used throughout the MAC are approved item names. Those terms/nomenclatures
expressed in parentheses are generic in nature and are not to be considered as official terminology.
The Maintenance Allocation Chart assigns maintenance functions to the lowest category of maintenance
based on past experience and the following considerations:
Work time required.
Tools and test equipment required and/or available.
Only the lowest category of maintenance authorized to perform a maintenance function is indicated. If the
lowest maintenance category cannot perform all tasks of any single maintenance function (e.g., test, repair),
then the higher maintenance level(s) that can accomplish additional tasks will also be indicated.
A maintenance function assigned to a maintenance category will automatically be authorized to be performed
at any higher maintenance category.
A maintenance function that cannot be performed at the assigned category of maintenance for any reason
may be evacuated to the next higher maintenance category. Higher maintenance categories will perform the
maintenance functions of lower maintenance categories when required or directed by the commander that
has the authority to direct such tasking.
The assignment of a maintenance function will not be construed as authorization to carry the related repair
parts or spares in stock. Information to requisition or otherwise secure the necessary repair parts will be as
specified in the associated Repair Parts and Special Tools List (RPSTL).
Normally there will be no deviation from the assigned level of maintenance. In cases of operational necessity,
maintenance functions assigned to a maintenance level may, on a one-time basis and at the request of the
lower maintenance level, be specifically authorized by the maintenance officer of the level of maintenance to
which the function is assigned. The special tools, equipment, etc., required by the lower level of maintenance
to perform this function will be furnished by the maintenance level to which the function is assigned. This
transfer of a maintenance function to a lower maintenance level does not relieve the higher maintenance level
of the responsibility for the function. The higher level of maintenance has the authority to determine:
If the lower level is capable of performing the work.
If the lower level will require assistance or technical supervision and on-site inspection.
If the authorization will be granted.
Changes to the Maintenance Allocation Chart will be based on continuing evaluation and analysis by
responsible technical personnel and on reports received from field activities.
B-3. 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 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 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, 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.