APPENDIX B MAINTENANCE ALLOCATION - TM-11-5840-270-24-10023

TM 11-5840-270-24-1

APPENDIX B

MAINTENANCE

ALLOCATION

SECTION I. INTRODUCTION

h. Replace. To replace unserviceable items with

B-1. General

serviceable like items.

This appendix provides a summary of the main-

i. Repair. To restore an item to serviceable

tenance operations covered in the equipment

condition through correction of a specific failure or

literature for the AN/APM-322. It authorizes

unserviceable condition. This function includes,

categories of maintenance for specific maintenance

but is not limited to welding, grinding, riveting,

functions on repairable items and components and

straightening, and replacement of parts other than

the tools and equipment required to perform each

the trial and error replacement of running spare

function. This appendix may be used as an aid in

type items such as fuses, lamps, or electron tubes.

planning maintenance operations.

j. Overhaul. Normally, the highest degree of

B-2. Maintenance Functions

maintenance performed by the Army in order to

Maintenance functions will be limited to and

minimize time work in process is consistent with

defined as follows:

quality and economy of operation. It consists of

a. Inspect. To determine serviceability of an item

that maintenance necessary to restore an item to

by comparing its physical, mechanical, and elec-

completely serviceable condition as prescribed by

trical characteristics with established standards.-

maintenance standards in technical publications for

b. Test. To verify serviceability and to detect

each item of equipment. Overhaul normally does

incipient electrical or mechanical failure by use of

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

special equipment such as gages, meters, etc. This

hour condition.

is accomplished with external test equipment and

k. Rebuild. The highest degree of materiel

does not include operation of the equipment and

maintenance. It consists of restoring equipment as

operator type tests using internal meters or in-

nearly as possible to new condition in accordance

dicating devices.

with original manufacturing standards. Rebuild is

c. Service. To clean, to preserve, to charge, and to

performed only when required by operational

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

considerations or other paramount factors and then

desired that elements, s u c h as painting and

only at the depot maintenance category. Rebuild

lubricating, be defined separately, they may be so

reduces to zero the hours or miles the equipment, or

listed.

component thereof, has been in use.

d. Adjust. To rectify to the extent necessary to

l. Symbols. The uppercase letter placed in the

bring into proper operating range.

appropriate column indicates the lowest level at

e. Align. To adjust two or more components or

which that particular maintenance function is to be

assemblies of an electrical or mechanical system so

performed.

that their functions are properly synchronized. This

B-3. Explanation of Format

does not include setting the frequency control knob

a. Column 1, Group Number. (Not applicable.)

of radio receivers or transmitters to the desired

b. Column 2, Functional Group. Column 2 lists

frequency.

the names

of c o m p o n e n t s ,

assemblies,

f. Calibrate. To determine the corrections to be

subassemblies, and modules on which maintenance

made in the readings of instruments or test

is authorized.

equipment used in precise measurement. Consists

c. Column 3, Maintenance Functions. Column 3

of the comparison of two instruments, one of which

lists the maintenance category at which per-

is a certified standard of known accuracy, to detect

formance of the specific maintenance function is

and adjust any discrepancy in the accuracy of the

authorized. Authorization to perform a function at

instrument being compared with the certified

any category also includes authorization to perform

standard.

that function at higher categories. The codes treed

g. Install. To set up for use in an operational

represent the various maintenance categores as

environment such as an encampment, site, or

follows:

vehicle.

B-1