APPENDIX C. MAINTENANCE ALLOCATION CHART

APPENDIX C

MAINTENANCE ALLOCATION CHART

Section I. INTRODUCTION

equipment used in precise measurement. Consists of

C-1. General

the comparison of two instruments, one of which is a

a. This section provides a general explanation of

certified standard of known accuracy, to detect and

all maintenance and repair functions authorized at

adjust any discrepancy in the accuracy of the instrument

various maintenance levels.

being compared with the certified standard.

b. Section II designates overall responsibility for

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

the performance of maintenance functions on the

environment such as an emplacement, site, or vehicle.

identified end item or component. The implementation

H-Replace: To replace unserviceable items with

of the maintenance functions upon the end item or

serviceable like items.

component will be consistent with the assigned

I-Repair: Those maintenance operations necessary to

maintenance functions.

restore an item to serviceable condition through

c. Section III. (Not applicable).

correction of material damage or a specific failure.

d. Section IV contains supplemental instructions or

Repair may be accomplished at each level of

explanatory notes required for a particular maintenance

maintenance.

function.

J-Overhaul: Normally, the highest degree of

C-2. Explanation of Columns in Section II

maintenance performed by the Army in order to

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

minimize time work is in process consistent with quality

group number is a numerical group assigned to each

and economy of operation.

It consists of that

assembly. The assembly groups are listed on the MAC

maintenance necessary to restore an item to completely

in disassembly sequence beginning with the first

serviceable condition as prescribed by maintenance

assembly removed in a top down disassembly

standards in technical publications for each item of

sequence.

equipment. Overhaul normally does not return an item

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

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

contains a brief description of the components of each

K-Rebuild: The highest degree of materiel

assembly group.

maintenance. It consists of restoring equipment as

c. Maintenance Functions, Column (3).

This

nearly as possible to new condition in accordance with

column lists the various maintenance functions (A

original manufacturing standards. Rebuild is performed

through K). The upper case letter placed in the

only when required by operational considerations or

appropriate column indicates the lowest maintenance

other paramoung factors and then only at the depot

level authorized to perform these functions.

maintenance level. Rebuild reduces to zero the hours

The symbol designations for the various maintenance

or miles the equipment, or component thereof, has been

levels are as follows:

in use.

C-Operator or crew

d. Work Measurement Time. The active repair

O-Organizational maintenance

time required to perform the maintenance function is

F-Direct support maintenance

included directly below the symbol identifying the level

H-General support maintenance

of maintenance. This time includes preparation time,

D-Depot maintenance

fault isolation / diagnostic time, and QA / AC time in

The maintenance functions are defined as follows:

addition to the time required to perform specific

A-Inspect: To determine serviceability of an item by

maintenance functions identified for tasks authorized.

comparing its physical, mechanical, and electrical

The time is expressed in man-hours and carried to one

characteristics with established standards.

place (tenths of hours).

B-Test: To verify serviceability and to detect

e. Tools and Equipment, Column (4). This column

electrical or mechanical failure by use of test equipment.

is provided for referencing by code the special tools and

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

test equipment (sec.

III) required to perform the

add fuel, lubricants, cooling agents, and air.

maintenance functions (sec. II).

D-Adjust: To rectify to the extent necessary to bring

f. Remarks, Column (5). This column is provided

into proper operating range.

for referencing by code the remarks (sec. IV) pertinent

E-Aline: To adjust specified variable elements of an

to the maintenance functions.

item to bring to optimum performance.

F-Calibrate: To determine the corrections to be made

in the readings of instruments of test

C-1