APPENDIX C. MAINTENANCE ALLOCATION

TM 11-5985-355-13

APPENDIX C

MAINTENANCE ALLOCATION

Section I. INTRODUCTION

h. Replace. The act of substituting a serviceable

C-1. General

like type part, subassembly, or module (component or

This appendix provides a summary of the maintenance

assembly) for an unserviceable counterpart.

operations for AS-2731/GRC. It authorizes categories of

Repair.

The application of maintenance

maintenance for specific maintenance functions on

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

reparable items and components and the tools and

replace) or other maintenance actions (welding, grinding,

equipment required to perform each function. This

riveting,

straightening,

facing,

remachining,

appendix may be used as an aid in planning

resurfacing) to restore serviceability to an item by

maintenance operations.

correcting specific damage, fault, malfunction, or failure

C-2. Maintenance Function

in a part, subassembly, module (component or

Maintenance functions will be limited to and defined as

assembly), end item, or system.

follows:

Overhaul.

That maintenance effort

a. Inspect. To determine the serviceability of an

(service/action) necessary to restore an i .m to a

item by comparing its physical, mechanical, and/or

completely

serviceable/operational

condition

electrical characteristics with established standards

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

through examination.

appropriate technical publications. Overhaul is normally

b. Test. To verify serviceability and to detect

the highest degree of maintenance performed by the

incipient failure by measuring the mechanical or

Army. Overhaul does not normally return an item to like

electrical characteristics of an item and comparing those

new condition.

characteristics with prescribed standards.

k. Rebuild. Consists of those services/actions

c. Service. Operations require periodically to keep

necessary for the restoration of unserviceable equipment

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

to a like new condition in accordance with original

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

manufacturing standards. Rebuild is the highest degree

replenish fuel, lubricants, hydraulic fluids, or compressed

of materiel maintenance applies to Army equipment.

air supplies.

The rebuild operation includes the act of returning to zero

d. Adjust. To maintain, within prescribed limits, by

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

bringing into proper or exact position, or by setting the

in classifying Army equipments/components.

operating characteristics to the specified parameters.

C-3. Column Entries

e. Align. To adjust specified variable elements

a. Column 1, Group .Number. Column 1 lists

of an item to bring about optimum or desired

group numbers, the purpose of which is to identify

performance.

components, assemblies, subassemblies, and modules

f. Calibrate. To determine and cause corrections

with the next higher assembly.

to be made or0 to be adjusted on instruments or test

b. Column 2, Component/Assembly. Column 2

measuring and diagnostic equipments used in precision

contains the noun names of components, assemblies,

measurement.

Consists of comparisons of two

subassemblies, and modules for which maintenance is

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

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

into position an item, part, module (component or

assembly) in a manner to allow the proper functioning of

the equipment or system.

C-1