Section. I. INTRODUCTION
facing, remachining, or resurfacing) to restore
serviceability to an item by correcting specific damage,
This appendix provides a summary of the maintenance
fault, malfunction, or failure in a part, subassembly,
operations for the AN/TSC-86. It authorizes categories
module (component or assembly), end item, or system.
of maintenance for specific maintenance functions on
repairable items and components and the tools and
(service/action) necessary to restore an item to a
equipment required to perform each function.
appendix may be used as an aid in planning
prescribed by maintenance standards (i.e., DMWR) in
appropriate technical publications. Overhaul is normally
the highest degree of maintenance performed by the
Maintenance Function Maintenance functions
Army. Overhaul does not normally return an item to like
will be limited to and defined as follows:
a. Inspect. To determine the serviceability of an
Consists of those services/actions
item by comparing its physical, mechanical, and/or
necessary for the restoration of unserviceable equipment
electrical characteristics with established standards
to a like new condition in accordance with original
manufacturing standards. Rebuild is the highest degree
To verify serviceability and to detect
of materiel maintenance applied to Army equipment.
incipient failure by measuring the mechanical or
The rebuild operation includes the act: of returning to
electrical characteristics of an item and comparing those
zero those age measurements (hours, miles, etc.)
characteristics with prescribed standards.
considered in classifying Army equipments/components.
Operations required periodically to
keep an item in proper operating condition, i.e., to clean
a. Column 1, Group Number. Column 1 lists group
(decontaminate), to preserve, to drain, to paint, or to
numbers, the purpose of which is to identify components,
replenish fuel, lubricants, hydraulic fluids, or compressed
assemblies, subassemblies, and modules with the next
d. Adjust. To maintain, within prescribed limits, by
b. Column 2, Component/Assembly.
bringing into proper or exact position, or by setting the
contains the noun names of components, assemblies,
operating characteristics to the specified parameters.
subassemblies, and modules for which maintenance is
e. Align. To adjust specified variable elements of
an item to bring about optimum or desired performance.
c. Column 3, Maintenance Functions. Column 3
f. Calibrate. To determine and cause corrections
lists the functions to be performed on the item listed in
to be made or to be adjusted on instruments or test
column 2. When items are listed without maintenance
measuring and diagnostic equipments used in precision
functions, it is solely for the purpose of having the group
Consists of comparisons of two
numbers in the MAC and RPSTL coincide.
instruments, one of which is a certified standard of
d. Column 4, Maintenance Category. Column 4
known accuracy, to detect and adjust any discrepancy in
specifies, by the listing of a "work time" figure in the
the accuracy of the instrument being compared.
appropriate subcolumn(s), the lowest level of
g. Install. The act of emplacing, seating, or fixing
maintenance authorized to perform the function listed in
into position an item, part, module (component or
column 3, This figure represents the active time required
assembly) in a manner to allow the proper functioning of
to perform that maintenance function at the indicated
the equipment or system.
category of maintenance. If the number or complexity of
h. Replace. The act of substituting a serviceable
the tasks within the listed maintenance function vary at
like type part, subassembly, or module (component or
different maintenance categories, appropriate "work
assembly) for an unserviceable counterpart.
time" figures will be shown for each category.
The application of maintenance
number of task-hours specified by the "work time" figure
services (inspect, test, service, adjust, align, calibrate,
represents the average time required to restore an item
replace) or other maintenance actions (welding, grinding,
(assembly, subassembly, component, module, end item
or system) to a serviceable condition under typical