MAINTENANCE ALLOCATION CHART (MAC)
Section I. INTRODUCTION
a. This section provides a general explanation of all maintenance and repair functions authorized at various
b. The Maintenance Allocation Chart (MAC) in Section II and III designates overall authority and responsibility
for the performance of maintenance functions on the identified end item or component. Section II is the MAC for the
Flatrack M1077/M1077A1 and Section III is the MAC for the ISO Compatible Palletized Flatrack M1 (IPF). The
application of the maintenance functions to the end item or components will be consistent with the capacities and
capabilities of the designated maintenance levels.
c. Section IV lists the tools and test equipment required for each maintenance function as referenced from
Section II or III.
d. Section V lists remarks (identified by an alphabetic code in column 6 of MAC) to provide a ready reference to
the definition of the remarks.
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 (e.g., by sight, sound, or feel).
b. Test. To verify serviceability by measuring the mechanical, pneumatic, hydraulic, or electrical characteristics
of an item and comparing those characteristics with prescribed standards.
c. 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.
d. 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.
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 comparison 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
g. Remove/Install. To remove and install the same item when required to perform service or other maintenance
functions. Install may be the act of emplacing, seating or fixing into position, a spare, repair part or module
(component or assembly) in a manner to allow the proper functioning of an equipment or system.