TM 11-6625-2946-14/TM 08168A-14/1
Section I. INTRODUCTION
straightening, facing, remachining, or resurfacing) to
restore serviceability to an item by correcting specific
This appendix provides a summary of the maintenance
damage, fault, malfunction, or failure in a part,
operations for Test Set TS-3354/PRC-68. It authorizes
subassembly, module (component or assembly), end
categories of maintenance for specific maintenance
item, or system.
functions on repairable items and components and the
j. Overhaul. That maintenance effort (service/action)
tools and equipment required to perform each function.
necessary to restore an item to a completely ser-
This appendix may be used as an aid in planning
viceable/operational condition as prescribed by
maintenance standards (i.e., DMWR) in appropriate
technical publications. Overhaul is nromally the highest
degree of maintenance performed by the Army.
Maintenance functions will be limited to and defined as
Overhaul does not normally return an item to like new
a. Inspect. To determine the serviceability of an item
k. Rebuild. Consists of those services/actions
by comparing its physical, mechanical, and/or electrical
necessary for the restoration of unserviceable equipment
characteristics with established standards through ex-
to a like new condition in accordance with original
manufacturing standards. Rebuild is the highest degree
b. Test. To verify serviceability and to detect incipient
of materiel maintenance applied to Army equipment.
failure by measuring the mechanical or electrical
The rebuild operation includes the act of returning to
characteristics of an item and comparing those charac-
zero those age measurements (hours, miles, etc. ) con-
teristics with prescribed standards.
sidered in classifying Army equipments/components.
c. Service. Operations required periodically to keep an
item in proper operating condition, i.e., to clean (decon-
taminate), to preserve, to drain, to paint, or to replenish
a. Column 1, Group Number. Column 1 lists group
fuel, lubricants, hydraulic fluids, or compressed air sup-
numbers, the purpose of which is to identify com-
ponents, assemblies, subassemblies, and modules with
d. Adjust. To maintain, within prescribed limits, by
the next higher assembly.
bringing into proper or exact position, or by setting the
b. Column 2, Component/Assembly. Column 2 con-
operating characteristics to the specified parameters.
tains 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 be
c. Column 3, Maintenance Functions. Column 3 lists
made or to be adjusted on instruments or test measuring
the functions to be performed on the item listed in col-
and diagnostic equipments used in precision measure-
umn 2. When items are listed without maintenance func-
ment. Consists of comparisons of two instruments, one
tions, it is solely for purpose of having the group
of which is a certified standard of known accuracy, to
numbers in the MAC and RPSTL coincide.
detect and adjust any discrepancy in the accuracy of the
instrument being compared.
d. Column 4, Maintenance Category. Column 4
g. Install. The act of emplacing, seating, or fixing into
specifies, by the listing of a "work time" figure in the
position an item, part, module (component or assembly)
appropriate subcolumn(s), the lowest level of main-
in a manner to allow the proper functioning of the equip-
tenance authorized to perform the function listed in
ment or system.
column 3. This figure represents the active time required
h. Replace. The act of substituting a serviceable like
to perform that maintenance function at the indicated
type part, subassembly, or module (component or
category of maintenance. If the number or complexity of
assembly) for an unserviceable counterpart.
the tasks within the listed maintenance function vary at
i. Repair. The application of maintenance services (in-
different maintenance categories, appropriate "work-
spect, test, service, adjust, align, calibrate, replace) or
time" figures will be shown for each category. The
other maintenance actions (welding, grinding, riveting,
number of task-hours specified by the "work time"