APPENDIX B. MAINTENANCE ALLOCATION CHART

APPENDIX B

MAINTENANCE ALLOCATION CHART

Section I. INTRODUCTION

B-1. General

B-Test: To verify serviceability and to detect

a. This section provides a general explanation of

electrical or mechanical failure by use of test equipment.

all maintenance an

repair functions authorized at

various maintenance levels.

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

b. Section II designates overall responsibility for

to add fuel, lubricants, cooling agents, and air. If it is

the performance of maintenance functions on the

desired that elements, such as painting and lubricating,

identified end item or component. The implementation

be defined separately, they may be so listed.

of the maintenance functions upon the end item or

component will be consistent with the assigned

D-Adjust: To rectify to the extent necessary to

maintenance functions.

bring into proper operating range.

c. Section III contains supplemental instructions,

explanatory notes and/or illustrations required for a

E-Aline: To adjust specified variable elements of

particular maintenance function.

an item to bring to optimum performance.

B-2. Explanation of Columns in Section II

F-Calibrate: To determine the corrections to be

made in the readings of instruments or test equipment

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

used in precise measurement.

Consists of the

group is a numerical group assigned to each assembly

comparison of two instruments, one of which is a

in a top down breakdown sequence. The applicable

certified standard of known accuracy, to detect and

assembly groups are listed on the MAC in disassembly

adjust any discrepancy in the accuracy of the instrument

sequence beginning with the first assembly removed in

being compared with the certified standard.

a top down disassembly sequence.

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

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

contains a brief description of the components of each

environment such as an emplacement, site, or vehicle.

assembly group.

H-Replace: To replace unserviceable items with

serviceable like items.

c. Maintenance Functions, Column. (3). This

column lists the various maintenance functions (A

I-Repair:

Those maintenance operations

through K) and indicates the lowest maintenance

necessary to restore an item to serviceable condition

category authorized to perform these functions. The

through correction of material damage or a specific

symbol designations for the various maintenance

failure. Repair may be accomplished at each category

categories are as follows:

of maintenance.

C-Operator or crew

J-Overhaul: Normally, the highest degree of

O-Organizational maintenance

maintenance performed by the Army in order to

F-Direct support maintenance

minimize time work in process is consistent with quality

H-General support maintenance

and economy of operation.

It consists of that

D-Depot maintenance

maintenance necessary to restore an item to completely

serviceable condition as prescribed by maintenance

The maintenance functions are defined as follows:

standards in technical publications for each item of

equipment. Overhaul normally does not return an item

A-Inspect: To determine serviceability of an item

to like new, zero mileage, or zero hour condition.

by comparing its physical, mechanical, and electrical

characteristics with established standards.

K-Rebuild:

The highest degree of materiel

maintenance. It consists of restoring equipment as

nearly as possible to new condition in accord-

B-1