TM 11-6625-2631-14
MAINTENANCE ALLOCATION
Section I. INTRODUCTION
like-type part, subassembly, module (component or
B-1. General
assembly) in a manner to allow the proper func-
This appendix provides a summary of the main-
t i o n i n g of an equipment/ system.
t e n a n c e operations covered in the equipment
i. Repair. T h e a p p l i c a t i o n o f maintenance
literature. It authorises categories of maintenantce
s e r v i c e s (inspect, test, service, adjust, align,
f o r specific maintenance functions on repairable
c a l i b r a t e , replace ) or other maintenance actions
items and components and the tools and equipment
(welding, grinding, riveting, straightening, facing,
required to perform each function. This appendix
rem remachining, or resurfacing) to restore serv-
m a y be used as an aid in planning maintenance
iceability to an item by correcting specific damage,
operations.
fault, m a l f u n c t i o n , o r failure
in
a
part,
B - 2 . Maintenance Functions
subassembly, module / component / assembly, end
Maintenance functions will be limited to and
item or system.
defined as follows:
j. Overhaul. That maintenance effort (serv-
a. Inspect. To determine the serviceability of an
i c e / action) necessary to restore an item to a
item by comparing its physical, mechanical,
completely serviceable / operational condition as
and / or electrical characteristics with established
prescribed by maintenance standards (e.g.,
s t a n d a r d s through examination.
DMWR) in pertinent technical manuals. Overhaul
b. Test. To verify serviceability and to detect
i s normally the highest degree of maintenance
i n c i p i e n t failure of measuring the mechanical or
performed by the Army. Overhaul does not nor-
electrical characteristics of an item and comparing
mally return an item to like-new condition.
those characteristics with prescribed standards.
k. Rebuild. Consists of those services/ actions
c. Service. Operations required periodically to
necessary for the restoration of unserviceable
keep an item in proper operating condition, i.e., to
equipment to a like-new condition in accordance
c l e a n , preserve, drain, paint, or to replenish
with original manufacturing standards. Rebuild is
fuel / lubricants/ hydraulic fluids or compressed
the highest degree of materiel maintenance applied
air supplies.
to Army equipment. The rebuild operation includes
d. Adjust. Maintain within prescribed limits by
the act of returning to zero those age measurements
bringing into proper or exact position, or by setting
[hours. miles, etc) considered in classifying Army
t h e operating characteristics to the specified
equipment / components.
parameters.
l. Symbols. The uppercase letter placed in the
e. Align. To adjust specified variable elements
a p p r o p r i a t e column indicates the lowest level at
o f an item to about optimum or desired per-
which that particular maintenance function is to be
formance.
performed.
f.. Calibrate. To determine and cause correc-
B - 3 . Explanation of Format
tions to be made or to be adjusted on instruments or
a. Group N u m b e r . C o l u m n 1 l i s t s g r o u p
test measuring and diagnostic equipment used to
numbers. the purpose of which is to match com-
precision measurement. Consists of the comparison
p o n e n t s , assemblies, s u b a s s e m b l i e s and modules
o f two instruments, one of which is a certified
with the next higher assembly.
standard of known accuracy, to detect and adjust
b. Functional Group. Column 2 lists the next
any discrepancy in the accuracy of the instrument
h i g h e r assembly group and the item names of
b e i n g compared.
components. assemblies. subassemblies and
g. lnstall. The act of emplacing, seating, or
modules within the group for which maintenance is
fixing into position an item, part, module (com-
authorized.
p o n e n t or assembly) in a manner to allow the
c . Maintenance Functions. Column 3 lists the
proper functioning of the equipment / system.
twelve maintenance functions defined in B-2 above.
h. Replace. The act of substituting a serviceable
