Appendix B. MAINTENANCE ALLOCATION CHART

TM 10-7310-239-13

APPENDIX B

MAINTENANCE ALLOCATION CHART

Section I. INTRODUCTION

8-l. General

standards.

B-

TEST: To verify serviceability and to detect

This section provides a general explanation of

electrical or mechanical failure by use of test

all maintenance and repair functions authorized at

equipment.

various maintenance levels.

C-

SERVICE: To clean, to preserve, to charge, and

to add fuel, lubricants, cooling agents, and air. (If

Section II designates overall responsibility for

it is desired that elements, such as painting and

the performance of maintenance functions the identified

lubricating, be defined separately, they may be so

end item or component. The implementation of the

listed.)

maintenance functions upon t identified end item or

D-

ADJUST: To rectify to the extent necessary to

component will be consistent with the assigned

bring into proper operating range.

maintenance function.

E-

ALIGN: To adjust specified variable elements of

Section III lists the special tools and t

an item to bring to optimum performance.

equipment required for each maintenance function as

F-

CALIBRATE: To determine the corrections to be

referenced from Section II. "Not applicable.

made in the readings of instruments or test

equipment used in precise measurement.

d. Section IV contains supplemental instructions or

Consists of the comparison of two instruments,

explanatory notes required for a particular maintenance

one of which is a certified standard of known

function. "Not applicable."

accuracy, to detect and adjust any discrepancy in

the accuracy of the instrument being compared

B-2. Explanation of Columns in Section II

with the certified standard.

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

G-

INSTALL. To set up for use in an operational

number is a numerical group assigned each assembly.

environment such as an emplacement, site, or

The assembly groups are list on the MAC in

vehicle.

disassembly sequence beginning with the first assembly

H-

REPLACE: To replace unserviceable items with

removed in a top down disassembly sequence.

serviceable like items.

I-

REPAIR:

Those

maintenance

operations

Assembly Group, Column (2). This column

necessary to restore an item to serviceable

contains a brief description of the component of each

condition through correction of material damage

assembly group.

or a specific failure. Repair may be accomplished

c. Maintenance Futnctions, Column (3).

This

at each level of maintenance.

column lists the various maintenance functions (A

J-

OVERHAUL: Normally, the highest degree of

through K). The upper case letter placed in the

maintenance performed by the ARMY in order to

appropriate column indicates the lowest maintenance

minimize time work is in process consistant with

level authorized to perform these functions. The active

quality and economy of operation. It consists of

repair time required to perform the maintenance

that maintenance necessary to restore an item to

function is included directly below the symbol identifying

completely serviceable condition as prescribed by

the category of maintenance. The symbol designations

maintenance standards in technical publications

for the various maintenance levels are as follows:

for each item of equipment. Overhaul normally

does not return an item to like new, zero mileage,

C-Operator or crew

or zero hour condition.

O-Organizational maintenance

K-

REBUILD: The highest degree of materiel

F-Direct support maintenance

maintenance. It consists of restoring equipment as

nearly as possible to new condition in accordance

The maintenance functions are defined as follows:

with original manufacturing standards. Rebuild is

performed only when required by operational

A-

INSPECT: To determine serviceability of an item

considerations or other paramount factors and

by comparing its physical, mechanical, and

then only at the depot maintenance level. Rebuild

electrical

characteristics

with

established

B-1