MAINTENANCE ALLOCATION CHART
Section I INTRODUCTION
a. This section provides a general explanation of all maintenance and repair functions author-
ized at various maintenance levels.
b. The Maintenance Allocation Chart (MAC) in section II designates overall responsibility for
the performance of maintenance functions on the identified end item or component. The imple-
mentation of the maintenance functions upon the end item or component will be consistent with the
assigned maintenance functions.
c. Section III lists the special tools and test equipment required for each maintenance function
as referenced from section II.
d. Section IV contains supplemental instructions on explanatory notes for a particular mainte-
B-2. MAINTENANCE FUNCTIONS.
a. /nspect. To determine the serviceability of an item by comparing its physical, mechanical,
and/or electrical characteristics with established standards through examination.
b. Test. To verify serviceability and detect incipient failure by measuring the mechanical or
electrical characteristics of an item and comparing those characteristics with prescribed standards.
c. Service. Operations required periodicalIy to keep an item in proper operating condition;
i.e., to clean (decontaminate), to preserve, to drain, to paint, or to replenish fuel, lubricants, hydrau-
lic fluids, or compressed air supplies.
d. Adjust. To maintain, within prescribed limits, by bringing into proper or exact position or by
setting the operating characteristics to specified parameters.
e. Aline. To adjust specified variable elements of an item to bring about optimum or desired
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 comparisons of
two instruments, one of which is a certified standard of known accuracy to detect and adjust any dis-
crepancy in the accuracy of the instrument being compared.
g. Install. The act of emplacing, seating, or fixing into position an item, part, or module (com-
ponent or assembly) in a manner to allow the proper functioning of an equipment or system.
h. Replace. The act of substituting a serviceable like type part, subassembly y or module (com-
ponent or assembly) for an unserviceable counterpart.