APPENDIX C MAINTENANCE ALLOCATION - TM-11-6625-542-14-10055

TM 11-6625-542-14-1

APPENDIX C

MAINTENANCE ALLOCATION

Section I. INTRODUCTION

Repair.

The application of maintenance

C-1. General

services (inspect, test, service, adjust, align, calibrate,

This appendix provides a summary of the maintenance

replace) or other maintenance actions (welding,

operations for AN/USM-108A. It authorizes categories of

grinding, riveting, straightening, facing, remachining, or

maintenance for specific maintenance functions on

resurfacing) to restore serviceability to an item by

repairable items and components and the tools and

correcting specific damage, fault, malfunction, or failure

equipment required to perform each function. This

in a part, subassembly, module/component/assembly,

appendix may be used as an aid in planning

end item or system. This function dows not include the

maintenance operations.

trial and error replacement of running spare type items

C-2. Maintenance Function

such as fuses, lamps, or electron tubes.

Maintenance functions will be limited to and defined as

Overhaul. That periodic maintenance effort

follows:

(service/action) necessary to restore an item to a

a. Inspect. To determine the serviceability of an

completely

serviceable/operational

condition

item by comparing its physical, mechanical, and for

prescribed by maintenance standards (e.g., DMWR) in

electrical characteristics with established standards

appropriate technical publications. Overhaul is normally

through examination.

the highest degree of maintenance performed by the

b. Test. To verify serviceability and to detect

Army. Overhaul does not normally return an item to like-

incipient failure by measuring the mechanical or

new condition.

electrical characteristics of an item and comparing those

Rebuild. Consists of those services/actions

characteristics with prescribed standards.

necessary for the restoration of unserviceable equipment

c. Service. Operations required periodically to

to a like-new condition in accordance with original

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

manufacturing standards. Rebuild is the highest degree

preserve,

drain,

paint,

replenish

of material maintenance applied to Army equipment.

fuel/lubricants/hydraulic fluids or compressed air

The rebuild operation includes the act of returning to zero

supplies.

those age measurements (hours, miles, etc.) considered

d. Adjust. Maintain within prescribed limits by

in classifying Army equipment/components.

bringing into proper or exact position, or by setting the

C-3. Column Entries

operating characteristics to the specified parameters.

a. Column 1, Group Number. Column 1 lists

Align. To adjust specified variable elements of

group numbers, the purpose of which is to identify

an item to about optimum or desired performance.

components, assemblies, subassemblies and modules

Calibrate.

To determine and cause

with the next higher assembly.

corrections to be made or to be adjusted on instruments

b. Column 2, Component/Assembly. Column 2

or test measuring and diagnostic equipment used in

contains the noun names of components, assemblies,

precision measurement. Consists of the comparison of

subassemblies, and modules for which maintenance is

two instruments, one of which is a certified standard of

authorized.

known accuracy, to detect and adjust any discrepancy in

c. Column 3, Maintenance Functions. Column 3

the accuracy of the instrument being compared.

lists the functions to be performed on the item listed in

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

column 2. When items are listed without maintenance

into position an item, part, module (component or

functions, it is solely for purpose of having

assembly) in a manner to allow the proper functioning of

the equipment/system.

h. Replace. The act of substituting a serviceable

like-type part, subassembly, model (component or

assembly) for an unserviceable counterpart.

C-1