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