Appendix B: MAINTENANCE ALLOCATION CHART

APPENDIX

MAINTENANCE ALLOCATION CHART

S e c t i o n I. INTRODUCTION

and air. (If it is desired that elements, such

B-1.

General

as painting and lubricating, be defined

a. This section provides a general explanation of

separately, they may be so listed.)

all maintenance and repair functions authorized at

D-Adjust: To rectify to the extent necessary to

various maintenance levels.

bring into proper operating range.

b. Section II designates overall responsibility for

E-Aline: To adjust specified variable elements

the performance of maintenance functions on the

o f an item to bring to optimum performance.

identified end item or component. The im-

F-Calibrate: To determine the corrections to

plementation of the maintenance functions upon

be made in the readings of instruments or

the identified end item or component will be

teat equipment used in precise measurement.

c o n s i s t e n t with the assigned maintenance functions.

Consists of the comparison of two in-

c. S e c t i o n I I I . ( N o t a p p l i c a b l e ) .

struments, one of which is a certified

d. S e c t i o n I V . ( N o t a p p l i c a b l e ) .

standard of known accuracy, to detect and

B-2. Explanation of Columns in Section II

adjust any discrepancy in the accuracy of

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

the instrument being compared with the

group number is a numerical group assigned to

certified standard.

each assembly. The assembly groups are listed on

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

the MAC in disassembly sequence beginning with

e n v i r o n m e n t such as an emplacement, site, or

the first assembly removed in a top down

vehicle.

disassembly sequence.

H-Replace: To replace unserviceable items

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

with serviceable like items.

contains a brief description of the components of

I-Repair: Those maintenance operations

each assembly group.

necessary to restore an item to serviceable

c. Maintenance Functions, Column (3). This

condition through correction of material

column lists the various maintenance functions (A

damage or a specific failure. Repair may be

through K). The upper caae letter placed in the

accomplished at each level of maintenance.

appropriate column indicates the lowest main-

J-Overhaul: Normally, the highest degree of

t e n a n c e level authorized to perform these functions.

maintenance performed by the Army in

The active repair time required to perform the

order to minimize time work is in process

m a i n t e n a n c e function is included directly below the

consistent with quality and economy of

symbol identifying the category of maintenance.

operation. It consists of that maintenance

The symbol designations for the various main-

necessary to restore an item to completely

tenance levels are as follows:

serviceable condition a s p r e s c r i b e d b y

C-Operator or crew

technical

maintenance

standards

O-Organizational

maintenance

publications for each item of equipment.

F-Direct support maintenance

Overhaul normally does not return on item

H-General support maintenance

to like new, zero mileage, or zero hour

D - D e p o t maintenance

condition.

The maintenance functions are defined as

K-Rebuild: The highest degree of materiel

follows:

maintenance. It consists of restoring

A-Inspect: To determine serviceability of an

equipment as nearly as possible to new

item by comparing its physical, mechanical,

with

original

condition

accordance

and

electrical

characteristics

with

manufacturing standards. Rebuild is per-

established standards.

formed only when required by operational

B-Test: To verify serviceability and to detect

considerations or other paramount factors

electrical or mechanical failure by use of text

and then only at the depot maintenance

equipment.

level. Rebuild reduces to zero the hours or

C-Service: To clean, to preserve, to charge,

miles the equipment. or component therof,

and to add fuel. lubricants, cooling agents,

has been in use.

B-1