TM 11-6625-2398-14-4
APPENDIX D
MAINTENANCE ALLOCATION
Section I. INTRODUCTION
like type part, subassembly, or module (component
D-1.
General
or assembly) for an unserviceable counterpart.
i. Repair. The application of maintenance services
This appendix provides a summary of the maintenance
(inspect, test, service, adjust, align, calibrate, replace) or
operations for AN/TPM-24(V)4. It authorizes categories
other maintenance actions (welding, grinding, riveting,
of maintenance for specific maintenance functions on
straightening, facing, re-machining, or resurfacing) to
repairable items and components and the tools and
restore serviceability to an item by correcting specific
equipment required to perform each function. This
damage, fault, malfunction, or failure in a part,
appendix may be used as an aid in planning
subassembly, module (component or assembly), end
maintenance operations.
item, or system.
j. Overhaul.
That
maintenance
effort
D-2.
Maintenance Function
(service/action) necessary to restore an item to a
completely
serviceable/operational
condition
as
Maintenance functions will be limited to and defined as
prescribed by maintenance standards (i.e., DMWR) in
follows:
appropriate technical publications. Overhaul is normally
a. Inspect. To determine the serviceability of an
the highest degree of maintenance performed by the
item by comparing its physical, mechanical, and/or
Army. Overhaul does not normally return an item to like
electrical characteristics with established standards
new condition.
through examination.
k. Rebuild. Consists of those services/actions
b. Test. To verify serviceability and to detect
necessary for the restoration of unserviceable equipment
incipient failure by measuring the mechanical or
to a like new condition in accordance with original
electrical characteristics of an item and comparing those
manufacturing standards. Rebuild is the highest degree
characteristics with prescribed standards.
of materiel maintenance applied to Army equipment.
c. Service. Operations required periodically to
The rebuild operation includes the act of returning to zero
keep an item in proper operating condition, i.e., to clean
those age measurements (hours, miles, etc.) considered
(decontaminate), to preserve, to drain, to paint, or to
in classifying Army equipment/components.
replenish fuel, lubricants, hydraulic fluids, or compressed
air supplies.
D-3.
Column Entries
d. Adjust. To maintain, within prescribed limits, by
bringing into proper or exact position, or by setting the
a. Column 1, Group Number. Column 1 lists group
operating characteristics to the specified parameters.
numbers, the purpose of which is to identify components,
e. Align. To adjust specified variable elements of
assemblies, subassemblies and modules with the next
an item to bring about optimum or desired performance.
higher assembly.
f. Calibrate. To determine and cause corrections
b. Column 2, Component/Assembly. Column 2
to be made or to be adjusted on instruments or test
contains the noun names of components, assemblies,
measuring and diagnostic equipments used in precision
subassemblies, and modules for which maintenance is
measurement.
Consists of comparisons of two
authorized.
instruments, one of which is a certified standard of
c. Column 3, Maintenance Functions. Column 3
known accuracy, to detect and adjust any discrepancy in
lists the functions to be performed on the item listed in
the accuracy of the instrument being compared.
column 2. When items are listed without maintenance
g. Install. The act of emplacing, seating, or fixing
functions, it is solely for purpose of having the group
into position an item, part, module (component or
numbers in the MAC and RPSTL coincide.
assembly) in a manner to allow the proper functioning of
d. Column 4, Maintenance Category. Column 4
the equipment or system.
h. Replace. The act of substituting a serviceable
D-1
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