Section I. INTRODUCTION
h. Replace. The act of substituting a serviceable
This appendix provides a summary of the maintenance
like type part, subassembly, or module (component or
operations for AN/ASC-15A(V)1 and AN/ASC-15A (V) 2.
assembly) for an unserviceable counterpart.
It authorizes categories of maintenance for specific
i. Repair. The application of maintenance services
maintenance functions on repairable items and
(inspect, test, service, adjust, align, calibrate, replace) or
components and the tools and equipment required to
other maintenance actions (welding, grinding, riveting,
perform each function. This appendix may be used as
straightening, facing, remachining, or resurfacing) to
an aid in planning maintenance operations.
restore serviceability to an item by correcting specific
fault, malfunction, or failure in a part,
C-2. Maintenance Function
subassembly, module (component or assembly), end
Maintenance functions will be limited to and defined as
item, or system.
Overhaul That maintenance effort (ser-
a. Inspect. To determine the serviceability of an
vice/action) necessary to restore an item to a completely
item by comparing its physical, mechanical, and/or
serviceable/operational condition as prescribed by
electrical characteristics with established standards
maintenance standards (i.e., DMWR) in appropriate
technical publications. Overhaul is normally the highest
b. Test. To verify serviceability and to detect
degree of maintenance performed by the Army.
incipient failure by measuring the mechanical or
Overhaul is normally the highest degree of maintenance
electrical characteristics of an item and comparing those
performed by the Army. Overhaul does not normally
characteristics with prescribed standards.
return an item to like new condition.
c. Service. Operations required periodically to keep
Rebuild Consists of those services/actions
an item in proper operating condition, i.e., to clean
necessary for the restoration of unserviceable equipment
(decontaminate), to preserve, to drain, to paint, or to
to a like new condition in accordance with original
replenish fuel, lubricants, hydraulic fluids, or compressed
manufacturing standards. Rebuild is the highest degree
of materiel maintenance applied to Army equipment.
d Adjust. To maintain, within prescribed limits, by
The rebuild operation includes the act of returning of
bringing into proper or exact position, or by setting the
zero those age measurements (hours, miles, etc.)
operating characteristics to the specified parameters.
considered in classifying Army equipments/components.
e. Align, To adjust specified variable elements of an
item to bring about optimum or desired performance.
C-3. Column Entries
f. Calibrate. To determine and cause corrections to
a. Column 1, Group Number. Column 1 lists group
be made or to be adjusted on instruments or test
numbers, the purpose of which is to identify components,
measuring and diagnostic equipments used in precision
assemblies, subassemblies, and modules with the next
Consists of comparisons of two
instruments, one of which is a certified standard of
b. Column 2, Component/Assembly. Column 2
known accuracy, to detect and adjust any discrepancy in
contains the noun names of components, assemblies,
the accuracy of the instrument being compared.
subassemblies, and modules for which maintenance is
g. Install The act of emplacing, seating, or fixing into
position an item, part, module (component or assembly)
c. Column 3, Maintenance Functions. Column 3
in a manner to allow the proper functioning of the
lists the functions to be performed on the item listed in
equipment or system.
column 2. When items are listed without maintenance
functions, it is solely for purpose of having