TM 11-6625-214-12
APPENDIX C
MAINTENANCE AULLOCATION
Section I. INTRODUCTION
i.
Repair. The application of maintenance
C-1.
General
services (inspect, test, service, adjust, align, calibrate,
This appendix provides a summary of the maintenance
re- place) or other maintenance actions (welding, grind-
operations for AN/URM-52, A, B.
It authorizes
ing, riveting, straightening, facing, remachining, or
categories of maintenance for specific maintenance
resurfacing) to restore serviceability to an item by
functions on repairable items and components and the
correcting specific damage, fault, malfunction, or failure
tools and equipment required to perform each function.
in a part, subassembly, module/component/ assembly,
This appendix may be used as an aid in planning
end item or system. This function does not include the
maintenance operations.
trial and error replacement of running spare type items
such as fuses, lamps, or electron tubes.
C-2.
Maintenance Function
j.
Overhaul That periodic maintenance effort
Maintenance functions will be limited to and defined as
(service/action) necessary to restore an item to a com-
follows:
pletely serviceable/operational condition as prescribed by
a. inspect. To determine the serviceability of
maintenance standards (e.g., DMWR) in approp- riate
an item by comparing its physical, mechanical, and/or
technical publications. Overhaul is normally the highest
electrical characteristics with established standards
degree of maintenance performed by the Army.
through examination.
Overhaul does not normally return an item to like-new
b. Test. To verify serviceability and to detect
condition.
inci- pient failure by measuring the mechanical or
k. Rebuild. Consists of those services/actions
electrical characteristics of an item and comparing those
charac- teristics with prescribed standards.
ment to a like-new condition in accordance with original
c. Service. Operations required periodically to
manufacturing standards. Rebuild is the highest degree
keep an item in proper operating condition, i.e., to clean,
of material maintenance applied to Army equipment.
preserve, drain, pant, or to replenish fuel
The rebuild operation includes the act of returning to zero
lubricants/hydraulic fluids or compressed air supplies.
those age measurements (hours,
miles, etc.)
d. Adjust. Maintain within prescribed limits by
considered in classifying Army equipment/components.
bringing into proper or exact position, or by setting the
operating characteristics to the specified parameters.
C-3.
Column Entries
e. Align To adjust specified variable elements
a. Column 1, Group Number Column 1 lists
of an item to bring about optimum or desired
group numbers, the purpose of which is to identify
performance.
compo- nents, assemblies, subassemblies and modules
f.
Calibrate.
To determine and cause
with the next higher assembly.
corrections to be made or to be adjusted on instruments
b. Column 2, Component/Assembly Column 2
or test measuring and diagnostic equipment used in
con- tainms the noun names of components,
precision measurement. Consists of the comparison of
assemblies, subassemblies, and modules for which
two in- struments, one of which is a certified standard of
maintenance is authorized.
known accuracy, to detect and adjust any discrepancy In
c. Column 3, Maintenance Functions. Column
the accuracy of the instrument being compared.
3 lists the functions to be performed on the item listed in
g. Install. The act of emplacing, seating, or
column 2. When items are listed without maintenance
fixing into position an item, part, module (component or
functions, it is solely for purpose of having the group
as- sembly) in a manner to allow the proper functioning
numbers in the MAC and RPSTL coincide.
of the equipment/system.
d. Column 4, Maintenance Category Column 4
h. Replace.
The act of substituting a
serviceable like-type part, subassembly, model
(component or as- sembly) for an unserviceable
counterpart.
C-1