Appendix D. MAINTENANCE ALLOCATION - TM-11-6625-2843-140033

TM 11-6625-2843-14

APPENDIX

MAINTENANCE

ALLOCATION

Section

INTRODUCTION

D-1.

General.

j. Overhaul. That maintenance effort (ser-

T h i s appendix provides a summary of the maintenance

vice/action) necessary to restore an item to a com-

operations for Test Set, Synchro TTU-23/E. It author-

pletely serviceable/operational condition as prescribed

izes categories of maintenance for specific mainte-

by maintenance standards (i.e., DMWR) in appropriate

nance functions on repairable items and components

technical publications. Overhaul is normally the high-

and the tools and equipment required to perform each

est degree of maintenance performed by the Army.

f u n c t i o n . This appendix may be used as an aid in plan-

O v e r h a u l does not normally return an item to like new

ning maintenance operations.

condition.

k . Rebuild. C o n s i s t s o f t h o s e s e r v i c e s / a c t i o n s n e c e s -

D-2.

Maintenance

Function.

sary for the restoration of unserviceable equipment to

Maintenance functions will be limited to and defined

a like new condition in accordance with original

a s follows:

manufacturing

standards.

Rebuild

the

highest

a. Inspect. To

determine

the

serviceability

degree of materiel maintenance applied to Army

item by comparing its physical, mechanical, and/or

equipment. The rebuild operation includes the act of

electrical characteristics with established standards

returning to zero those age measurements (hours,

through examination.

miles, etc.) considered in classifying Army equip-

b. Test. To verify serviceability and to detect incip-

ments/components.

ient failure by measuring the mechanical or electrical

c h a r a c t e r i s t i c s of an item and comparing those charac-

D-3.

Column

Entries.

teristics with prescribed standards.

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

c. Service. Operations required periodically to keep

numbers, the purpose of which is to identify compo-

a n item in proper operating condition, i.e., to clean (de-

n e n t s , assemblies, subassemblies, and modules with the

contaminate), to preserve, to drain, to paint, or to

next higher assembly.

eplenish fuel, lubricants, hydraulic fluids, or com-

b. Column 2, Component/Assembly. C o l u m n 2 c o n -

pressed air supplies.

tains the noun names of components, assemblies, sub-

d . Adjust. T o m a i n t a i n , w i t h i n p r e s c r i b e d l i m i t s , b y

assemblies, and modules for which maintenance is

b r i n g i n g into proper or exact position, or by setting the

authorized.

operating characteristics to the specified parameters.

c. C o l u m n 3 , M a i n t e n a n c e F u n c t i o n s . Column 3 lists

e . Align. To adjust specified variable elements of an

t h e functions to be performed on the item listed in col-

item to bring about optimum or desired performance.

umn 2. When iterns are listed without maintenance

f . Calibrate. T o d e t e r m i n e a n d c a u s e c o r r e c t i o n s t o

f u n c t i o n s , it is solely for purpose of having the group

be made or to be adjusted on instruments or test

numbers in the MAC and RPSTL coincide.

m e a s u r i n g and diagnostic equipments used in precision

measurement. Consists of comparisons of two instru-

d. Column 4, Maintenance Category. C o l u m n 4

ments, one of which is a certified standard of known

s p e c i f i e s , by the listing of a ``worktime" figure in the

accuracy, to detect and adjust any discrepancy in the

appropriate subcolumn(s), the lowest level of mainte-

accuracy of the instrument being compared.

n a n c e authorized to perform the function listed in col-

g . Install. T h e a c t o f e m p l a c i n g , s e a t i n g , o r f i x i n g

u m n 3. This figure represents the active time required

into position an item, part, module (component or as-

to perform that maintenance function at the indicated

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

category of maintenance, If the number or complexity

the equipment or system.

of the tasks within the listed maintenance function

h . Replace. The act of substituting a serviceable like

vary at different maintenance categories, appropriate

type part, subassembly, or module (component or as-

``worktime" figures will be shown for each category.

sembly) for an unserviceable counterpart.

The number of task-hours specified by the "worktime"

i . Repair. T h e

application

maintenance

services

figure represents the average time required to restore

( i n s p e c t , test, service, adjust, align, calibrate, replace)

an item (assembly, subassembly, component, module,

o r other maintenance actions (welding, grinding, rivet-

end item or system) to a serviceable condition under

ing, straightening, facing, remachining, or resurfac-

typical field operating conditions. This time includes

ing) to restore serviceability to an item by correcting

preparation time, troubleshooting time, and quality

specific damage, fault, malfunction, or failure in a

assurance/quality control time in addition to the time

part, subassembly, module (component or assembly),

r e q u i r e d to perform the specific tasks identified for the

end item, or system.

maintenance functions authorized in the maintenance

D-1