TM 11-6625-524-14-2
MAINTENANCE
ALLOCATION
Section I. INTRODUCTION
replace) or other maintenance actions (welding,
C-1. General
grinding, riveting, straightening, facing, re-
This appendix provides a summary of the mainte-
m a c h i n i n g , or resurfacing) to restore serv-
nance operations for AN/URM-145B. It authorizes
iceability to an item by correcting specific damage,
categories of maintenance for specific mainte-
fault, malfunction, or failure in a part, subassem-
nance functions on repairable items and compo-
bly, module (component or assembly), end item, or
nents and the tools and equipment required to
system. This function does not include the trial and
perform each function. This appendix may be used
error replacement of running spare type items
as an aid in planning maintenance operations.
such as fuses, lamps, or electron tubes.
j. Overhaul. That maintenance effort (service/
C-2. Maintenance Function
action) necessary to restore an item to a completely
Maintenance functions will be limited to and de-
serviceable/operational condition as prescribed by
fined as follows:
maintenance standards (i.e., DMWR) in appropri-
a. Inspect. To determine the serviceability of an
ate technical publications. Overhaul is normally
item by comparing its physical, mechanical, and/or
the highest degree of maintenance performed by
electrical characteristics with established stand-
the Army. Overhaul does not normally return an
ards through examination.
item to like new condition.
b. Test. To verify serviceability and to detect in-
k. Rebuild. Consists of those services/actions
cipient failure by measuring the mechanical or
necessary for the restoration of unserviceable
electrical characteristics of an item and comparing
equipment to a like new condition in accordance
those characteristics with prescribed standards.
with original manufacturing standards. Rebuild is
c. Service. Operations required periodically to
the highest degree of materiel maintenance
keep an item in proper operating condition, i.e., to
applied to Army equipment. The rebuild operation
clean (decontaminate), to preserve, to drain, to
includes the act of returning to zero those age
paint, or to replenish fuel, lubricants, hydraulic
measurements (hours, miles, etc.) considered in
fluids, or compressed air supplies.
classifying Army equipments/components.
d. Adjust. To maintain, within prescribed limits,
C-3. Column Entries
by bringing into proper or exact position, or by
setting the operating characteristics to the
a. Column 1, Graup Number. Column 1 lists
specified parameters.
group numbers, the purpose of which is to identify
e. Align. To adjust specified variable elements of
components, assemblies, subassemblies, and mod-
an item to bring about optimum or desired perfor-
ules with the next higher assembly.
mance.
b. Column 2, Component/Assembly. Column 2
f. Calibrate. To determine and cause corrections
contains the noun names of components, as-
to be made or to be adjusted on instruments or test
semblies, subassemblies, and modules for which
measuring and diagnostic equipments used in pre-
maintenance is authorized.
cision measurement. Consists of comparisons of
c. Column 3, Maintenance Functions. Column 3
two instruments, one of which is a certified stand-
lists the functions to be performed on the item
ard of known accuracy, to detect and adjust any
listed in column 2. When items are listed without
discrepancy in the accuracy of the instrument
maintenance functions, it is solely for purpose of
being compared.
having the group numbers in the MAC and RPSTL
g. Install. The act of emplacing, seating, or fixing
coincide.
into position an item, part, module (component or
d. Column 4, Maintenance Category. Column 4
assembly) in a manner to allow the proper func-
specifies, by the listing of a "work time" figure in
tioning of the equipment or system.
the appropriate subcolumn(s), the lowest level of
h. Replace. The act of substituting a serviceable
maintenance authorized to perform the function
like type part, subassembly, or module (component
listed in column 3. This figure represents the active
or assembly) for an unserviceable counterpart.
time required to perform that maintenance func-
i. Repair. The application of maintenance serv-
tion at the indicated category of maintenance. If
ices (inspect, test, service, adjust, align, calibrate,
the number or complexity of the tasks within the
