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