APPENDIX C. MAINTENANCE ALLOCATION

TM 9-4931-456-14-1

APPENDIX C

MAINTENANCE ALLOCATION

Section I. INTRODUCTION

adjust any discrepancy in the accuracy of the instrument

C.1 General

being compared with the certified standard.

This appendix provides a summary of the maintenance

C.2.7. INSTALL. To set up for use in an operational

operations covered in the equipment literature for the

environment such as an encampment, site, or vehicle.

Flow Transfer Kit, Flow Technology, Inc. Model FT-

C.2.8. REPLACE. To replace unserviceable items with

AFS-4-CF and Anadex Instruments, Inc. Model CF-604-

serviceable like items.

6-8175Q. It authorizes categories of maintenance for

C.2.9. REPAIR. To restore an item to serviceable

specific maintenance functions on repairable items and

components and the tools and equipment required to

condition through correction of a specific failure or

perform each function. This appendix may be used as

unserviceable condition. This function includes, but is

an aid in planning maintenance operations.

not limited to welding, grinding, riveting, straightening,

and replacement of parts other than the trial and error

replacement of running spare type items such as fuses,

C.2 Maintenance Functions

lamps, or electron tubes.

Maintenance functions will be limited to and defined as

C.2.10. OVERHAUL. Normally, the highest degree of

follows:

maintenance performed by the Army in order to

C.2.1. INSPECT. To determine serviceability of an item

minimize time work in process is consistent with quality

by comparing its physical, mechanical, and electrical

and economy of operation.

It consists of that

characteristics with established standards.

maintenance necessary to restore an item to completely

C.2.2. TEST. To verify serviceability and to detect

serviceable condition as prescribed by maintenance

incipient electrical or mechanical failure by use of

standards in technical publications for each item of

special equipment such as gages, meters, etc. This is

equipment. Overhaul normally does not return an item

accomplished with external test equipment and does not

to like new, zero mileage, or zero hour condition.

include operation of the equipment and operator type

C.2.11. REBUILD. The highest degree of materiel

tests using internal meters or indicating devices.

maintenance. It consists of restoring equipment as

C.2.3. SERVICE. To clean, to preserve, to charge, and

nearly as possible to new condition in accordance with

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

original manufacturing standards. Rebuild is performed

desired that elements, such as painting and lubricating,

only when required by operational considerations or

be defined separately, they may be so listed.

other paramount factors and then only at the depot

C.2.4. ADJUST. To rectify to the extent necessary to

maintenance category. Rebuild reduces to zero the

bring into proper operating range.

hours or miles the equipment, or component thereof,

C.2.5. ALIGN. To adjust two or more components or

has been in use.

assemblies of all electrical or mechanical system so that

C.2.12. SYMBOLS. The uppercase letter placed in the

their functions are properly synchronized. This does not

appropriate column indicates the lowest level at which

include setting the frequency control knob of radio

that particular maintenance function is to be performed.

receivers or transmitters to the desired frequency.

C.2.6. CALIBRATE. To determine the corrections to be

C.3 Explanations of Format of Section II,

made in the readings of instruments or test equipment

Maintenance Allocation Chart

used in precise measurement.

Consists of the

C.3.1. Column 1, Group Number. Not applicable.

comparison of two instruments, one of which is a

C.3.2. Column 2, Functional Group. Column 2 lists the

certified standard of known accuracy, to detect and

C-1