Appendix C. MAINTENANCE ALLOCATION - TM-11-6625-847-120056

TM 11-6625-847-12

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 SM-442A/GRC. It authorizes categories

grinding, riveting, straightening, facing, remachining, or

of 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 does 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

j. 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/or

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

k. Rebuild. Consists of those services/actions

characteristics with prescribed standards.

necessary for the restoration of unserviceable

c. Service. Operations required periodically to

equipment to a like-new condition in accordance with

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

original manufacturing standards. Rebuild is the highest

preserve,

drain,

paint,

replenish

degree of material maintenance applied to Army

fuel/lubricants/hydraulic fluids or compressed air

equipment. The rebuild operation includes the act of

supplies.

returning to zero those age measurements (hours,

d. Adjust. Maintain within prescribed limits by

miles,

etc)

considered

classifying

Army

bringing into proper or exact position. or by setting the

equipment/components.

operating characteristics to the specified parameters.

C-3.

Column Entries

e. Align. To adjust specified variable elements of

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

an item to about optimum or desired performance.

numbers, the purpose of which is to identify

f. Calibrate. To determine and cause corrections

components, assemblies, subassemblies and modules

to be made or to be adjusted on instruments or test

with the next higher assembly.

measuring and diagnostic equipment used in precision

b. Column 2, Component/Assembly. Column 2

measurement. Consists of the comparison of two

contains the noun names of components. assemblies,

instruments, one of which is a certified standard of

subassemblies, and modules for which maintenance is

known accuracy, to detect and adjust any discrepancy in

authorized.

the accuracy of the instrument being compared.

c. Column 3, Maintenance Functions. Column 3

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

lists the functions to be performed on the item listed in

into position an item, part, module (component or

column 2. When items are listed without maintenance

assembly) in a manner to allow the proper functioning of

functions, it is solely for purpose of having the group

the equipment/system.

numbers in the MAC and RPSTL coincide.

h. Replace. The act of substituting a serviceable

d. Column 4, Maintenance Category. Column 4

like-type part, subassembly, model (component or

specifies, by the listing of a "worktime" figure in the

assembly) for an unserviceable counterpart.

appropriate subcolumn(s), the lowest level of

Change 2 C-1