TM 11-6625-486-14&P
MAINTENANCE ALLOCATION
Section I. INTRODUCTION
h. Replace. The act of substituting a serviceable
C-1. General
like-type part, subassembly, model (component or
This appendix provides a summary of the maintenance
assembly) for an unserviceable counterpart.
operations for the equipment. It authorizes categories of
maintenance for specific maintenance functions on
i. Repair. The application of maintenance services
repairable items and components and the tools and
equipment required to perform each function. This
(inspect, test, service, adjust, align, calibrate, replace) or
appendix may be used as an aid in planning
other maintenance actions (welding, grinding, riveting,
maintenance operations.
straightening, facing, remachining, or resurfacing) to
restore serviceability to an item by correcting specific
damage, fault, malfunction, or failure in a part,
C-2. Maintenance Function
subassembly, module/component/assembly, end item or
Maintenance functions will be limited to and defined as
system.
follows:
j. Overhaul. That periodic maintenance effort
a. Inspect. To determine the serviceability of an
(service/action) necessary to restore an item to a
item by comparing its physical, mechanical, and/or
completely
serviceable/operational
condition
as
electrical characteristics with established standards
prescribed by maintenance standards (e.g., DMWR) in
through examination.
appropriate technical publications. Overhaul is normally
the highest degree of maintenance performed by the
b. Test. To verify serviceability and to detect
Army. Overhaul does not normally return an item to
incipient failure by measuring the mechanical or
like-new condition.
electrical characteristics of an item and comparing those
characteristics with prescribed standards.
k. Rebuild. Consists of those services/actions
necessary for the restoration of unserviceable
c. Service. Operations required periodically to keep
equipment to a like-new condition in accordance with
an item in proper operating condition, i.e., to clean,
original manufacturing standards. Rebuild is the highest
preserve, drain, paint, or to replenish fuel/lubricants/
degree of materiel maintenance applied to Army
hydraulic fluids or compressed air supplies.
equipment. The rebuild operation includes the act of
returning to zero those age measurements (hours,
d. Adjust. Maintain within prescribed limits by
miles,
etc)
considered
in
classifying
Army
bringing into proper or exact position, or by setting the
equipment/components.
operating characteristics to the specified parameters.
C-3. Column Entries
e. Align. To adjust specified variable elements of
an item to about optimum or desired performance.
a. Column 1, Group Number. Column 1 lists group
numbers, the purpose of which is to identify
f. Calibrate. To determine and cause corrections to
components, assemblies, subassemblies and modules
be made or to be adjusted on instruments or test
with the next higher assembly.
measuring and diagnostic equipment used in precision
measurement. Consists of the comparison of two
b. Column 2, Component/Assembly. Column 2
instruments, one of which is a certified standard of
contains the noun names of components, assemblies,
known accuracy, to detect and adjust any-discrepancy in
subassemblies, and modules for which maintenance is
the accuracy of the instrument being compared.
authorized.
g. Install. The act of emplacing, seating, or fixing
c. Column 3, Maintenance Functions. Column 3
into position an item, part, module (component or
lists the functions to be performed on the item listed in
assembly) in a manner to allow the proper functioning of
column 2.
the equipment/system.
d. Column 4, Maintenance Category. Column 4
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