TM
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APPENDIX C
MAINTENANCE ALLOCATION
Section I. INTRODUCTION
C-1. General
j. Overhaul. That periodic maintenance effort
(service/action) necessary to restore an item to a
This appendix summarizes the maintenance operations
completely serviceable/operational condition as
covered in the equipment literature. It authorizes
prescribed by maintenance standards (e.g., DMWR) in
categories of maintenance for specific maintenance
appropriate technical publications, Overhaul is nor-
functions on repairable items and components, and the
mally the highest degree of maintenance performed by
tools and equipment required to perform each function.
the Army. Overhaul does not normally return an item
C-2. Maintenance Functions
to like-new condition.
k. Rebuild. Consists of those services/actions nec-
Maintenance functions will be limited to and defined as
follows:
essary for the restoration of unserviceable equipment to
a. Inspect. To determine the serviceability of an item
a like-new condition in accordance with original
by comparing its physical, mechanical, and/or
manufacturing standards. Rebuild is the highest degree
electrical characteristics with established standards
of materiel maintenance applied to Army equipment.
The rebuild operation includes the act of returning to
through examination.
zero those age measurements (hours, miles, etc. ) con-
b. Test. To verify serviceability and to detect inci-
sidered in classifying Army equipment/components,
pient failure by measuring the mechanical or electrical
characteristics of an item and comparing those charac-
C-3. Column Entries
teristics with prescribed standards.
c. Service. Operations required periodically to keep
a. Column 1, Group Number. Column 1 lists group
numbers, the purpose of which is to identify com-
an item in proper operating condition, i.e., to clean,
ponents, assemblies, subassemblies and modules with
preserve, drain, paint, or to replenish fuel/lubricants/
the next higher assembly.
hydraulic fluids or compressed air supplies.
d. Adjust. Maintain within prescribed limits by bring-
b. Column 2, Component/Assembly. Column 2 con-
tains the noun names of components, assemblies,
ing into proper or exact position, or by setting the
subassemblies, and modules for which maintenance is
operating characteristics to the specified parameters.
authorized.
e. Align. To adjust specified variable elements of an
c. Column 3, Maintenance Function. Column 3 lists
item to about optimum or desired performance.
the functions to be performed on the item listed in col-
f. Calibrate. To determine and cause corrections to be
umn 2.
made or to be adjusted on instruments or test measuring
d. Column 4, Maintenance Category. Column 4
and diagnostic equipment used in precision measure-
specifies, by the listing of a worktime figure in the ap-
ment. Consists of the comparison of two instruments,
propriate subcolumn(s), the lowest level of maintenance
one of which is a certified standard of known accuracy,
authorized to perform the function listed in column 3.
to detect and adjust any discrepancy in the accuracy of
This figure represents the active time required to per-
the instrument being compared,
form that maintenance function at the indicated
g. Install. The act of emplacing, seating, or fixing into
category of maintenance. If the number or complexity
position an item, part, module (component or assembly)
of the tasks within the listed maintenance function vary
in a manner to allow the proper functioning of the
at different maintenance categories, appropriate work-
equipment/system.
time figures will be shown for each category. The
h. Replace. The act of substituting a serviceable like-
number of man-hours specified by the worktime figure
type part, subassembly, module (component or assem-
represents the average time required to restore an item
bly) for an unserviceable counterpart.
(assembly, subassembly, component, module, end item
i. Repair. The application of maintenance services
or system) to a serviceable condition under typical field
(inspect, test, service, adjust, align, calibrate, replace)
operating conditions. This time includes preparation
or other maintenance actions (welding, grinding, rivet-
time, troubleshooting time and quality assurance/quali-
ing, straightening, facing, remachining, or resurfacing)
ty control time in addition to the time required to per-
to restore serviceability to an item by correcting
specific damage, fault, malfunction, or failure in a part,
form the specific tasks identified for the maintenance
functions authorized in the maintenance allocation
subassembly, module/component/assembly, end item or
chart. Subcolumns of Column 4 are as follows:
system.
C-1
