Appendix B. MAINTENANCE ALLOCATION

TM 11-6625-2609-12

APPENDIX B

MAINTENANCE ALLOCATION

Section I.

INTRODUCTION

certified standard of known accuracy, to detect

B-1. General

and adjust any discrepancy in the accuracy of

This appendix provides a summary of the main-

the instrument being compared.

tenance operations covered in the equipment lit-

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

erature. It authorizes categories of maintenance

fixing into position an item, part, module (com-

for specific maintenance functions on repairable

ponent or assembly) in a manner to allow the

items and components and the tools and equip-

proper functioning of the equipment/system.

ment required to perform each function. This ap-

pendix may be used as an aid in planning main-

h. Replace. The act of substituting a service-

tenance operations.

able like-type part, subassembly, module (compon-

ent or assembly) in a manner to allow the

proper functioning of an equipment/system.

B-2. Maintenance Functions

i. Repair. The application of. maintenance ser-

Maintenance functions will be limited to and de-

vices (inspect, test, service, adjust, align, cali-

fined as follows:

brate, replace) or other maintenance actions

a. Inspect. To determine the serviceability of

(welding, grinding, riveting, straightening, fac-

an item by comparing its physical, mechanical,

ing, remachining, or resurfacing) to restore serv-

and/or electrical characteristics with established

iceability to an item by correcting specific dam-

standards through examination.

age, fault, malfunction, or failure in a part, sub-

assembly, module/component/assembly, end item

b. Test. To verify serviceability and to detect

or system.

incipient failure by measuring the mechanical or

electrical characteristics of an item and compar-

j. Overhaul. A That maintenance effort (service/

ing those characteristics with prescribed stand-

action) necessary to restore an item to a com-

ards.

pletely serviceable/operational condition as pre-

scribed by maintenance standards (e.g., DMWR)

c. Service. Operations required periodically to

in pertinent technical manuals. Overhaul is nor-

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

mally the highest degree of maintenance per-

to clean, preserve, drain, paint, or to replenish

formed by the Army. Overhaul does not normally

fuel/lubricants/hydraulic fluids or compressed air

return an item to like-new condition.

supplies.

k. Rebuild. Consists of those services/actions

d. Adjust. Maintain within prescribed limits

necessary for the restoration of unserviceable

by bringing into proper or exact position, or by

equipment to a like-new condition in accordance

setting the operating characteristics to the speci-

with original manufacturing standards. Rebuild

fied parameters.

is the highest degree of materiel maintenance ap-

e. Align. To adjust specified variable elements

plied to Army equipment. The rebuild operation

of an item to about optimum or desired per-

includes the act of returning to zero those age

formance.

measurements (hours, miles, etc.) considered in

classifying Army equipment/components.

f. Calibrate. To determine and cause correc-

l. Symbols. The uppercase letter placed in the

tions to be made or to be adjusted on instruments

appropriate column indicates the lowest level at

or teat, measuring, and diagnostic equipment

which that particular maintenance function is to

used in precision measurement. Consists of the

be performed.

comparison of two instruments, one of which is a

B-1