APPENDIX B. MAINTENANCE ALLOCATION CHART

APPENDIX B

M A I N T E N A N C E ALLOCATION CHART

Section I. INTRODUCTION

C--Service. To clean, to preserve, to charge, and

B-1. General

to add fuel, lubricants, cooling agents, and

a. This section provides a general explanation of

air. If it is desired that elements, such as

all maintenance and repair functions authorized at

p a i n t i n g and lubricating, be defined

various maintenance levels.

separately, they may be so listed.

b. Section II designates overall responsibility for

D--Adjust. To rectify to the extent necessary to

the performance of maintenance functions on the

bring into proper operating range.

i d e n t i f i e d end item or component. The im-

E--Align. To adjust specified variable elements

plementation of the maintenance functions upon

of an item to bring to optimum performance.

the end item or component will be consistent with

F--Calibrate. To determine the corrections to be

the assigned maintenance functions.

made in the readings of instruments or test

c. Section III lists the special tools and test

equipment used in precise measurement.

equipment required for each maintenance function

Consists of the comparison of two in-

as referenced from Section II.

struments, one of which is a certified

d. Section IV contains supplemental in-

standard of known accuracy, to detect and

structions, explanatory notes and/or illustrations

adjust any discrepancy in the accuracy of the

required for a particular maintenance function.

instrument being compared with the cer-

B-2. Explanation of Columns in Section II

tified standard.

a. Group Number, Column (1). The assembly

G--Install. To set up for use in an operational

group is a numerical group assigned to each

environment such as an emplacement, sit, or

assembly in a top down breakdown sequence. The

vehicle.

applicable assembly groups are listed on the MAC

H--Replace. To replace unserviceable items

in disassembly sequence beginning with the first

with serviceable like items.

assembly removed in a top down disassembly

I -- R e p a i r . Those maintenance operations

sequence.

necessary to restore an item to serviceable

b. Functional Group. Column (2). This column

condition through correction of material

contains a brief description of the components of

damage or a specific failure. Repair may be

each functional group.

accomplished at each category of main-

c. Maintenance Functions, Column (3). This

tenance.

column lists the various maintenance functions (A

J--Overhaul. Normally, the highest degree of

through K) and indicates the lowest maintenance

maintenance performed by the Army in

category authorized to perform these functions.

order to minimize time work in process is

The symbol designations for the various main-

consistent with quality and economy of

tenance categories are as follows:

operation. It consists of that maintenance

necessary to restore an item to completely

C--Operator or crew

serviceable condition as prescribed by

O--Organizational maintenance

in technical

maintenance standards

F--Direct support maintenance

publications for each item of equipment.

H--General support maintenance

Overhaul normally does not return an item

D--Depot maintenance

to like new. zero mileage, or zero hour

The maintenance functions as defined as follows:

condition.

K--Rebuild. The highest degree of materiel

A--Inspect. To determine serviceability of an

maintenance. I t consists of restoring

item by comparing its physical. mechanical,

equipment as nearly as possible to new

with

characteristics

and

electrical

condition in accordance with original

established standards.

manufacturing standards. Rebuild is per-

B--Test. To verify serviceability and to detect

formed only when required by operation

electrical or mechanical failure by use of test

considerations or other paramount factors

equipment.

B-1