Appendix C. MAINTENANCE ALLOCATION - TM-11-5831-201-200033

TM 11-5831-201-20

APPENDIX C

MAINTENANCE ALLOCATION

Section I. INTRODUCTION

curacy of the instrument being compared with

C-1. General

the certified standard.

This appendix provides a summary of the main-

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

tenance operations covered in the equipment

environment such as an encampment, site, or

literature for Control, Intercommunication Set

vehicle.

C-1611D/AIC. It authorizes categories of main-

tenance for specific maintenance functions on re-

h. Replace. To replace unserviceable items with

pairable items and components and the tools and

serviceable like items.

equipment required to perform each function.

i. Repair. To restore an item to serviceable

This appendix maybe used as an aid in planning

condition through correction of a specific failure

maintenance operations.

or unserviceable condition. This function includes,

but is not limited to welding, grinding, riveting,

C-2. Maintenance Functions

straightening, and replacement of parts other

Maintenance functions will be limited to and de-

than the trial and error replacement of running

fined as follows:

spare type items such as fuses, lamps, or electron

tubes.

a. Inspect. To determine serviceability of an

item by comparing its physical, mechanical, and

j. Overhaul. Normally, the highest degree of

electrical characteristics with established stan-

maintenance performed by the Army in order to

dards.

minimize time work in process consistent with

quality and economy of operation. It consists of

b. Test. To verify serviceability and to detect

that maintenance necessary to restore an item to

incipient electrical or mechanical failure by use

completely serviceable condition as prescribed by

of special equipment such as gages, meters, etc.

maintenance standards in technical publications

This is accomplished with external test equipment

for each item of equipment. Overhaul normally

and does not include operation of the equipment

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

and operator type tests using internal meters or

or zero hour condition.

indicating devices.

k. Rebuild. The highest degree of materiel

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

maintenance. It consists of restoring equipment

to add fuel, lubricants, cooling agents, and air. If

as nearly as possible to new condition in accord-

it is desired that elements, such as painting and

a n c e with original manufacturing standards.

lubricating, be defined separately, they may be so

Rebuild is performed only when required by op-

listed.

erational considerations o r o t h e r p a r a m o u n t

d. Adjust. To rectify to the extent necessary to

factors and then only at the depot maintenance

bring into proper operating range.

category. Rebuild reduces to zero the hours or

e. Aligm To adjust two or more components or

miles the equipment, or component thereof, has

assemblies of an electrical or mechanical system

been in use.

so that their functions are properly synchronized.

l Symbols. The uppercase letter placed in the

This does not include setting the frequency control

appropriate column indicates the lowest level at

knob of radio receivers or transmitters to the

which that particular maintenance function is to

desired frequency.

be performed.

f. Calibrate. To determine the corrections to

C-3. Explanation of Format

be made in the readings of instruments or test

equipment used in precise measurement. Consists

a. Column 1, Group Number. Column 1 lists

of the comparison of two instruments, one of

group numbers, the purpose of which is to iden-

which is a certified standard of known accuracy,

tify components, assemblies, subassemblies, and

to detect and adjust any discrepancy in the ac-

modules with the next higher assembly.

C-1