Appendix B: MAINTENANCE ALLOCATION CHART

TM 5-4120-356-14

APPENDIX B

MAINTENANCE ALLOCATION CHART

S e c t i o n I. Introduction

B-1. GENERAL

a . T h i s section provides a general explanation of all maintenance and repair

f u n c t i o n s authorized at various maintenance categories.

b . T h e Maintenance Allocation Chart (MAC)

in section II, designates overall

a u t h o r i t y and responsibility for the performance of

maintenance functions on the

i d e n t i f i e d end item or component.

The application

of the maintenance functions to

t h e end item or component will be consistent with

the capabilities and capacities

o f the designated maintenance categories.

c . S e c t i o n III lists the tools and test equipment (both special and common

tool sets) required for each maintenance function as referenced from section II.

d . S e c t i o n IV contains supplemental instructions and explanatory notes for

a particular maintenance function.

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

t h r o u g h examination (e.g., by sight, sound or feel).

b . T e s t . T o verify serviceability by measuring the mechanical, pneumatic,

hydraulic, or electrical characteristic of an item and comparing those character-

istics with prescribed standards.

c . Service. Operations required periodically to keep an item in proper

o p e r a t i n g condition, i.e., to clean (includes decontaminate when required), to pre-

serve, to drain, to paint, or to replenish fuel, lubricants, chemical fluids, or

gases.

d . A d j u s t . T o maintain or regulate, within prescribed limits, by bringing

i n t o proper or exact position, or by setting the operating characteristics to speci-

fied parameters.

e . A l i n e . T o adjust specified variable elements of an item to bring about

optimum or desired performance.

f . C a l i b r a t e . T o determine and cause corrections to be made or to be adjust-

e d on instruments or test, measuring, and diagnostic equipments used in precision

measurement.

Consists of comparisons of two instruments, one of which is a certi-

f i e d standard of known accuracy, to detect and adjust any descrepancy in the acc-

u r a c y of the instrument being compared.

B-1