Appendix C. MAINTENANCE ALLOCATION - TM-11-6625-601-120073

TM-11-6625-601-12

APPENDIX C

MAINTENANCE ALLOCATION

Section I. INTRODUCTION

g r i n d i n g , riveting, straightening, facing, re-

C-1. General.

m a c h i n i n g , or resurfacing) to restore serv-

This appendix provides a summary of the mainte-

iceability to an item by correcting specific damage,

nance operations for MK-733/ARC-54. It au-

fault, malfunction, or failure in a part, subassem-

thorizes categories of maintenance for specific

bly, module (component or assembly), end item, or

maintenance functions on repairable items and

system.

components and the tools and equipment required

j. Overhaul. That maintenance effort (service/

to perform each function. This appendix may be

action) necessary to restore an item to a completely

used as an aid in planning maintenance opera-

serviceable/operational condition as prescribed by

tions.

maintenance standards (i.e., DMR) in appropriate

technical publications. Overhaul is normally the

C-2. Maintenance Function.

highest degree of maintenance performed by the

Maintenance functions will be limited to and

Army. Overhaul does not normally return an item

defined as follows:

to like new condition.

a. Inspect. To determine the serviceability of an

k. Rebuild. Consists of those services/actions

item by comparing its physical, mechanical, and/or

necessary for the restoration of unserviceable

electrical characteristics with established stand-

equipment to a like new condition in accordance

ards through examination.

with original manufacturing standards. Rebuild is

b. Test. To verify serviceability and to detect

t h e highest degree of materiel maintenance

incipient failure by measuring the mechanical or

applied to Army equipment. The rebuild operation

electrical characteristics of an item and comparing

includes the act of returning to zero those age

those characteristics with prescribed standards.

measurements (hours, miles, etc.) considered in

c. Service. Operations required periodically to

classifying Army equipments/components.

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

clean (decontaminate), to preserve, to drain, to

C-3. Column Entries.

paint, or to replenish fuel, lubricants, hydraulic

a. Column 1, Group Number. Column 1 lists

fluids, or compressed air supplies.

group numbers, the purpose of which is to identify

d. Adjust. To maintain, within prescribed limits,

components, assemblies, subassemblies, and mod-

by bringing into proper or exact position, or by

ules with the next higher assembly.

s e t t i n g the operating characteristics to the

b. Column 2, Component/Assembly. Column 2

specified parameters.

contains the noun names of components, as-

e. Align. To adjust specified variable elements of

semblies, subassemblies, and modules for which

a n item to bring about optimum or desired

maintenance is authorized.

performance.

c. Column 3, Maintenance Functions. Column 3

f. Calibrate. To determine and cause corrections

lists the functions to be performed on the item

to be made or to be adjusted on instruments or test

listed in column 2. When items are listed without

measuring and diagnostic equipments used in

maintenance functions, it is solely for purpose of

precision measurement. Consists of comparisons of

having the group numbers in the MAC and RPSTL

t w o instruments, one of which is a certified

coincide.

standard of known accuracy, to detect and adjust

d. Column 4, Maintenance Category. Column 4

any discrepancy in the accuracy of the instrument

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

being compared.

the appropriate subcolumn(s), the lowest level of

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

maintenance authorized to perform the function

into position an item, part, module (component or

listed in column 3. This figure represents the active

a s s e m b l y ) in a manner to allow the proper

time required to perform that maintenance func-

functioning of the equipment or system.

tion at the indicated category of maintenance. If

h. Replace. The act of substituting a serviceable

the number or complexity of the tasks within the

like type part, subassembly, or module (component

listed maintenance function vary at different

or assembly) for an unserviceable counterpart.

maintenance categories, appropriate "worktime"

i. Repair. The application of maintenance serv-

figures will be shown for each category. The

ices (inspect, test, service, adjust, align, calibrate,

number of task-hours specified by the "worktime"

replace) or other maintenance actions (welding,

Charge 3 C-1