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SECTION II ADDITIONAL AUTHORIZATION LIST - TM-11-4920-296-14-P0126
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TM-11-4920-296-14-P Transponder Set Test Set AN/APM-378 (NSN 4920-00-134-1533) Manual
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Tool and Test Equipment Requirements (Sec. III)


TM 11-4920-296-14&P
MAINTENANCE ALLOCATION
Section I. INTRODUCTION
nent or assembly) in a manner to allow the proper
D-1. General
functioning of the equipment or system.
This appendix provides a summary of the mainte-
h. Replace. The act of substituting a serviceable
nance operations for AN/APM­378. It authorizes
like type part, subassembly, or module (compo-
categories of maintenance for specific mainte-
nent or assembly) for an unserviceable counter-
nance functions on repairable items and compo-
part.
nents and the tools and equipment required to per-
i. Repair. The application of maintenance serv-
form each function. This appendix may be used as
ices (inspect, test, service, adjust, align, calibrate,
an aid in planning maintenance operations.
replace ) or other maintenance actions (welding,
grinding, riveting, straightening, facing, rema-
D-2. Maintenance Function
chining, or resurfacing) to restore serviceability
Maintenance functions will be limited to and de-
to an item by correcting specific damage, fault,
fined as follows:
malfunction or failure in a part, subassembly,
a. Inspect. To determine the serviceability of an
module (component or assembly), end item, or
it-em by comparing its physical, mechanical, and/
system.
or electrical characteristics with established
j. Overhaul. That maintenance effort (service/
standards through examination.
action ) necessary to restore an item to a com-
b. Test. To verify serviceability and to detect
pletely serviceable/operational condition as pre-
incipient failure by measuring the mechanical or
scribed by maintenance standards (i.e., DMWR)
electrical characteristics of an item and compar-
in appropriate technical publications. Overhaul is
ing those characteristics with prescribed stand-
normally the highest degree of maintenance per-
ards.
formed by the Army. Overhaul does not normally
c. Service. Operations required periodically to
return an item to like new condition.
keep an item in proper operating condition, i.e., to
k. Rebuild. Consists of those services/actions
clean (decontaminate), to preserve to drain, to
necessary for the restoration of unserviceable
paint, or to replenish fuel, lubricants, hydraulic
equipment to a like new condition in accordance
fluids, or compressed air supplies.
with original manufacturing standards. Rebuild
d. Adjust. To maintain, within prescribed lim-
is the highest degree of materiel maintenance ap-
its, by bringing into proper or exact position, or
plied to Army equipment. The rebuild operation
by setting the operating characteristics to the
includes the act of returning to zero those age
specified parameters.
measurements (hours, miles, etc. ) considered in
e. Align. To adjust specified variable elements
classifying Army equipment/components.
of an item to bring about optimum or desired per-
formance.
D-3. Column Entries
f. Calibrate. To determine and cause correc-
a. Column 1, Group Number. Column 1 lists
tions to be made or to be adjusted on instruments
group numbers, the purpose of which is to iden-
or test. measuring and diagnostic equipments used
tify components, assemblies, subassemblies, and
in precision measurement. Consists of compari-
modules with the next higher assembly,
sons of two instruments, one of which is a certi-
b. Column 2, Component/Assembly. Column 2
fied standard of known accuracy, to detect and ad-
contains the noun names of components, assem-
just any discrepancy in the accuracy of the instru-
blies, subassemblies, and modules for which main-
ment being compared.
tenance is authorized.
g. Install. The act of emplacing, seating, or fix-
c. Column 3, Maintenance Functions. Column 3
ing into position an item, part, module (compo-


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