Appendix B. MAINTENANCE ALLOCATION - TM-11-5820-882-230051

TM 11-5820-882-23/TM 06827A-23/2

APPENDIX B

MAINTENANCE ALLOCATION

INTRODUCTION

Section I

B-l. General

to restore serviceability to an item by correcting

specific damage, fault, malfunction, or failure in a

This appendix provides a summary of the maintenance

part, subassembly, module (component or assembly),

operations for AN/PRC68. It authorizes categories of

end item, or system.

maintenance for specific maintenance functions on

Overhaul. That maintenance effort (service/act-

repairable items and components and the tools and

ion) necessary to restore an item to a completely ser-

equipment required to perform each function. This ap-

viceable/operational condition as prescribed by mainte-

pendix may be used as an aid in planning maintenance

nance standards (i.e., DMWR) in appropriate technical

operations.

publications. Overhaul is normally the highest degree of

B-2. Maintenance Function

maintenance performed by the Army. Overhaul does not

normally return an item to like new condition.

Maintenance functions will be limited to and

k. Rebuild. Consists of those services/actions

defined as follows:

necessary for the restoration of unserviceable equip-

a. Inspect. To determine the serviceability of an

ment to a like new condition in accordance with

item by comparing its physical, mechanical, and/or

original manufacturing standards. Rebuild is the highest

electrical characteristics with established standards

degree of materiel maintenance applied to Army equip-

through examination.

ment. The rebuild operation includes the act of return-

b. Test. To verify serviceability and to detect inci-

ing to zero those age measurements (hours, miles, etc.)

pient failure by measuring the mechanical or electrical

considered in classifying Army equipments/com-

characteristics of an item and comparing those charac-

ponents.

teristics with prescribed standards.

c. Service. Operations required periodically to

B-3. Column Entries

keep an item in proper operating condition, i.e., to

Column 1, Group Number. Column 1 lists

clean (decontaminate), to preserve, to drain, to paint, or

group numbers, the purpose of which is to identify com-

to replenish fuel, lubricants, hydraulic fluids, or com-

ponents, assemblies, subassemblies and modules with

pressed air supplies,

the next higher assembly,

d. Adjust. To maintain, within prescribed limits,

b. Column 2, Component/Assembly. Column 2

by bringing into proper or exact position, or by setting

contains the noun names of components, asemblies,

the operating characteristics to the specified parameters.

subassemblies, and modules for which maintenance is

e. Align. To adjust specified variable elements of

authorized.

an item to bring about optimum or desired perfor-

c. Column 3, Maintenance Functions. Column 3

mance.

lists the functions to be performed on the item listed in

f. Calibrate. To determine and cause corrections

column 2. When items are listed without maintenance

to be made or to be adjusted on instruments or test

functions, it is solely for purpose of having the group

measuring and diagnostic equipments used in precision

numbers in the MAC and RPSTL coincide.

measurement. Consists of comparisons of two instru-

d. Column 4, Maintenance Category. column 4

ments, one of which is a certified standard of known ac-

specifies, by the listing of a "work time" figure in the

curacy, to detect and adjust any discrepancy in the ac-

appropriate subcolumn (s), the lowest level of mainte-

curacy of the instrument being compared.

nance authorized to perform the function listed in

g. Install. The act of emplacing, seating, or fixing

column 3. This figure represents the active time required

into position an item, part, module (component or

to perform that maintenance function at the indicated

assembly) in a manner to allow the proper functioning

category of maintenance. If the number or complexity

of the equipment or system.

of the tasks within the listed maintenance function vary

h. Replace. The act of substituting a serviceable

at different maintenance categories, appropriate "work

like type part, subassembly, or module (component or

time" figures will be shown for each category. The

assembly) for an unserviceable counterpart.

number of task-hours specified by the "work time"

Repair. The application of maintenance services

figure represents the average time required to restore an

(inspect, test, service, adjust, align, calibrate, replace)

item (assembly, subassembly, component, module, end

or other maintenance actions (welding, grinding, rivet-

item or system) to a serviceable condition under typical

ing, straightening, facing, remachining, or resurfacing)

B-1