MAINTENANCE ALLOCATION CHART
SECTION I. INTRODUCTION
B - 1 . GENERAL
T h i s section provides a general explanation of all maintenance and repair functions
a u t h o r i z e d at various maintenance categories.
T h e Maintenance Allocation Chart (MAC) in section II designates overall
r e s p o n s i b i l i t y for the performance of maintenance functions on the identified end item or
component. The implementation of the maintenance functions upon the end item or component
w i l l be consistent with the assigned maintenance functions.
Section III lists the special tools and test equipment required for each maintenance
f u n c t i o n as referenced from section II.
S e c t i o n IV contains supplemental instructions and explanatory notes for a particular
m a i n t e n a n c e function.
Maintenance functions will be limited to and defined as follows:
I n s p e c t . To determine the serviceability of an item by comparing its physical,
m e c h a n i c a l , and/or electrical characteristics with established standards through examination.
T e s t . To verify serviceability by measuring the mechanical or electrical
c h a r a c t e r i s t i c s of an item and comparing those characteristics with prescribed standards.
S e r v i c e . Operations required periodically to keep an item in proper operating
c o n d i t i o n , i.e., to clean (includes decontaminate, when required), to preserve, to drain, to paint,
o r to replenish fuel, lubricants, chemical fluids, or gases.
A d j u s t . To maintain, within prescribed limits, by bringing into proper or exact
p o s i t i o n , or by setting the operating characteristics to specified parameters.
A l i g n . To adjust specified variable elements of an item to bring about optimum or
C a l i b r a t e . To determine and cause corrections to be made or to be adjusted on
i n s t r u m e n t s or test, measuring, and diagnostic equipments used in precision measurement.
C o n s i s t s of comparisons of two instruments, one of which is a certified standard of known
a c c u r a c y , to detect and adjust any discrepancy in the accuracy of the instrument being
I n s t a l l . The act of emplacing, seating, or fixing into position an item, part, or module
( c o m p o n e n t or assembly) in a manner to allow the proper functioning of an equipment or system.