Appendix B. MAINTENANCE ALLOCATION CHART

TM 55-4920-325-14&P

APPENDIX B

MAINTENANCE ALLOCATION CHART

B-1. General. The purpose of the maintenance allocation chart is to provide all

activities with authorized maintenance functions to be performed at each level of

maintenance.

M a i n t e n a n c e functions shall be limited to and defined

B - 2 . Ma i n t e n a n c e F u n c t i o n s .

as follows:

M a i n t a i n within prescribed limits by bringing into proper or

a. A d j u s t .

exact position, or by setting the operating characteristics to the specified

parameters.

To adjust specified variable elements of an item to bring about

b. A l i g n .

optimum or desired performance.

To determine and cause corrections to be made or to be

c. Calibrate.

a d j u s t e d on instruments or test measuring and diagnostic equipment used in preci-

sion measurement. C o n s i s t s of comparisons of two instruments, one of which is a

c e r t i f i e d standard of known accuracy, to detect and adjust any discrepancy in the

a c c u r a c y of the instrument being compared.

d . I n s p e c t . T o determine the serviceability of an item by comparing its

physical, mechanical, and/or electrical characteristics with established standards

t h r o u g h examination.

T h e act of emplacing, seating, or fixing into position an item,

e. Install.

p a r t , module (component or assembly) in a manner to allow the proper functioning

o f the equipment/system.

f . O v e r h a u l . T h a t maintenance effort (service/action) necessary to restore

a n item to a completely serviceable/operational condition as prescribed by mainte-

n a n c e s t a n d a r d s ( e . g . , D M W R ) i n p e r t i n e n t t e c h n i c a l p u b l i c a t i o n s . O v e r h a u l is

n o r m a l l y the highest degree of maintenance performed by the Army.

Overhaul does

n o t n o r m a l l y re t u r n a n i t e m to l i k e n e w condi t i o n .

g . 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 s a r y f o r t h e r e s t o r a -

tion of unserviceable equipment to a like-new condition in accordance with original

m a n u f a c t u r i n g standards.

R e b u i l d is the highest degree of materiel maintenance

a p p l i e d to Army equipment.

T h e rebuild operation includes the act of returning to

z e r o those age measurements (hours, miles, etc.) considered in classifying Army

equipment/components.

h. Repair. The application of maintenance services (inspect, test, service,

adjust, align, calibrate, replace) or other maintenance actions (welding, grinding,

riveting, straightening, facing, remachining, or resurfacing) to restore service-

ability to an item by correcting specific damage, fault, malfunction, or failure

i n a part, subassembly, module/component/assembly, end item or system.

B-1