TM 5-3805-262-20
APPENDIX B
MAINTENANCE ALLOCATION CHART
Section I. INTRODUCTION
B-1. GENERAL
a. This section provides a general explanation of all maintenance and repair
functions authorized at various maintenance categories.
b. The Maintenance Allocation Chart (MAC) in section II 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 categories.
c. Section III lists the tools and test equipment (both special tools and common
tool sets) required for each maintenance function as referenced from section II.
d. Section IV contains supplemental instructions and explanatory notes for a
particular maintenance function.
B-2. MAINTENANCE FUNCTIONS
Maintenance functions will be limited to and defined as follows:
a. 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 , a n d / o r e l e c t r i c a l c h a r a c t e r i s t i c s w i t h e s t a b l i s h e d s t a n d a r d s t h r o u gh
e x a m i n a t i o n ( i . e . , b y s i g h t , s o u n d , o r f e e l ) .
b. T e s t .
To verify serviceability by measuring the mechanical or electrical
characteristics of an item and comparing those characteristics with prescribed
s t a n d a r d s.
c. S e r v i c e.
Operations required periodically to keep an item in proper operating
condition, i.e., to clean (includes decontaminate, when required), to preserve, to
d r a i n , t o p a i n t , o r t o r e p l e n i s h f u e l , l u b r i c a n t s , c h e m i c a l f l u i d s , o r g a s e s.
d. A d j u s t .
To maintain or regulate, within prescribed limits, by bringing into
p r o p e r o r e x a c t p o s i t i o n , o r b y s e t t i n g t h e o p e r a t i n g c h a r a c t e r i s t i c s t o s p e c i f i ed
parameters.
e. A l i g n .
To adjust specified variable elements of an item to bring about optimum
or desired performance.
f. C a l i b r a t e .
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 compared.
B-1
