APPENDIX C MAINTENANCE ALLOCATION CHART

TM 55-1740-200-14

APPENDIX C

M A I N T E N A N C E ALLOCATION CHART

C-1. PURPOSE.

(7) Install. To set up for use in an operational

environment such as an emplacement, site, or vehicle.

The purpose of the maintenance allocation chart is to

provide all activities with maintenance functions to be

(8) Replace. To replace unserviceable items with

performed at each level of maintenance.

serviceable assemblies, subassemblies, or parts.

(9) Repair. To restore an item to serviceable

C-2. DEFINITIONS.

condition. This includes, but is not limited to, inspection,

cleaning, preserving, adjusting, replacing, weldlng, riveting,

and strengthening.

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

numbers, the purpose of which is to identify components,

(10) Overhaul. To restore an item to a completely

assemblies, subassemblies, and modules with the next

serviceable condition as prescribed by maintenance

higher assembly.

serviceability standards prepared and published for the

specific item to be overhauled.

b. Column 2, Functional Group. Column 2 lists the

noun names of components, assemblies, subassemblies,

(11) Rebuild. To restore an item to a standard as

and modules on which maintenance is authorized.

nearly as possible to original or new condition in

appearance, performance, and life expectancy. This is

accomplished through complete disassembly of the item,

c. Column 3, Maintenance Functions. Maintenance

i n s p e c t i o n of all parts or components, repair or

functions will be limited to and defined as follows:

replacement of worn or unserviceable elements (items)

using original manufacturing tolerances and specifications,

(1) Inspect. To determine serviceability of an item

and subsequent reassembly of the item.

by comparing its physical, mechanical, and electrical

characteristics with established standards.

(12) Symbols. The symbol O, F, H, or D placed in

the appropriate column indicates the level responsible for

(2) Test. To verify serviceability and to detect

performing that particular maintenance function. The

electrical or mechanical failure by use of test equipment.

s y m b o l " % % " w h i c h applies to organizational

maintenance indicates the level responsible for performing

(3) Service. To clean, to preserve, to charge, and to

that particular maintenance function may be performed

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

provided' it is specifically authorized by the direct support

that elements, such as painting and lubricating, be defined

maintenance officer. Use of the symbol will apply only to

separately, they may be so listed.

replacement of major assemblies and time-consuming

o p e r a t i o n s w h i c h are within the capabilities of

(4) Adjust. To rectify to the extent necessary to

organization, but over which control by the commodity

bring into proper operating range.

commands is considered essential. In no case will the

d i r e c t s u p p o r t maintenance officer require the

(5) Align. To adjust specified variable elements of

accomplishment of a "%%" maintenance function by an

an item to bring to optimum performance.

organization or unit, and in no case will a "%%" function

authorize stockage of parts at organizational level.

(6) Calibrate. To determine the corrections to be

made in the readings of instruments or test equipment

d. Column 4, Tools and Equipment. This column will

used in precise measurement. Consists of the comparison

be used to specify, by code, those tools and test

of two instruments, one of which is a certified standard

equipment required to perform the designated function.

of known accuracy, to detect and adjust any discrepancy

in the accuracy of the instrument being compared with

e. Column 5, Remarks. Self-explanatory.

the certified standard.