Section I. INTRODUCTION
like type part, subassembly, or module (component
or assembly) for an unserviceable counterpart.
This appendix provides a summary of the main-
i. Repair. The application of maintenance services
tenance operations for the S-280C/G. It authorizes
(inspect, test, service, adjust, align, calibrate,
categories of maintenance for specific maintenance
replace) or other maintenance actions (welding,
functions on repairable items and components and
grinding, riveting, straightening, facing,
the tools and equipment required to perform each
remachining, or resurfacing) to restore ser-
function. This appendix may be used as an aid in
viceability to an item by correcting specific damage,
planning maintenance operations.
fault, malfunction, or failure in a part, subassembly,
module (component or assembly), end item, or
C-2. Maintenance Function.
Maintenance functions will be limited to and defined
j. Overhaul. That maintenance effort (ser-
vice/action) necessary to restore an item to a
a. Inspect. To determine the serviceability of an
completely serviceable/operational condition as
item by comparing its physical, mechanical, and/or
prescribed by maintenance standards (i.e., DMWR)
electrical characteristics with established standards
in appropriate technical publications. Overhaul is
normally the highest degree of maintenance per-
b. Test. To verify serviceability and to detect
formed by the Army. Overhaul does not normally
incipient failure by measuring the mechanical or
return an item to like new condition.
electrical characteristics of an item and comparing
k. Rebuild. Consists of those services/actions
those characteristics with prescribed standards.
c. Service. Operations required periodically to
equipment to a like new condition in accordance
keep an item in proper operating condition, i.e., to
with original manufacturing standards. Rebuild is
clean (decontaminate), to preserve, to drain, to
the highest degree of materiel maintenance applied
paint, or to replenish fuel, lubricants, hydraulic
to Army equipment. The rebuild operation includes
fluids, or compressed air supplies.
the act of returning to zero those age measurements
d. Adjust. To maintain, within prescribed limits,
(hours, miles, etc.) considered in classifying Army
by bringing into proper or exact position, or by
setting the operating characteristics to the specified
C-3. Column Entries.
e. Align. To adjust specified variable elements of
a Column 1, Group Number. Column 1 lists
an item to bring about optimum or desired per-
group numbers, the purpose of which is to identify
components, assemblies, subassemblies, and
f. Calibrate. To determine and cause corrections
modules with the next higher assembly.
to be made or to be adjusted on instruments or test
b. Column 2, Component/Assembly. Column 2
measuring and diagnostic equipments used in
contains the noun names of components, assem-
precision measurement. Consists of comparisons of
blies, subassemblies, and modules for which
two instruments, one of which is a certified standard
maintenance is authorized.
of known accuracy. to detect and adjust any
c. Column 3, Maintenance Functions. Column 3
discrepancy in the accuracy of the instrument being
lists the functions to be performed on the item listed
in column 2. When items are listed without main-
g. Install. The act of emplacing, seating, or fixing
tenance functions, it is solely for purpose of having
into position an item, part, module (component or
the group numbers in the MAC and RPSTL coin-
assembly) in a manner to allow the proper func-
tioning of the equipment or system.
d. Column 4, Maintenance Category. Column 4
h. Replace. The act of substituting a serviceable