MAINTENANCE ALLOCATION
Section I. INTRODUCTION
B-1. General
h. Replace. To replace unserviceable items with
serviceable like item.
This appendix provides a summary of the main-
i. Repair. To restore an item to serviceable
tenance operations covered in the equipment
condition through correction of a specific failure of
literature. It authorizes categories of maintenance
unserviceable condition. This function includes,
for specific maintenance functions on reparable
but is not limited to welding, grinding, riveting,
items and components and the tools and equipment
straightening, and replacement of parts other than
required to perform each function. This appendix
the trial and error replacement of running spare
may be used as an aid in planning maintenance
type items such as fuses, lamps, or electron tubes.
operations.
j. Overhaul. Normally, the highest degree of
B-2. Maintenance Functions.
maintenance performed by the Army in order to
Maintenance functions will be limited to and
minimize timework in process is consistent with
defined as follows:
quality and economy of operation. It consists of
a. Inspect. To determine serviceability of an
that maintenance necessary to restore an item to
item by comparing its physical, mechanical, and
completely serviceable condition as prescribed by
electrical characteristics with established stand-
maintenance standards in technical publications for
ards.
each item of equipment. Overhaul normally does
b. Test. To verify serviceability and to detect
not return an item to like new , zero mileage, or zero
incipient electrical or mechanical failure by use of
hour condition.
special equipment such as gages, meters, etc. This
k. Rebuild. The highest degree of materiel
is accomplished with external test equipment and
maintenance. It consists of restoring equipment as
does not include operation of the equipment and
nearly as possible to new condition in accordance
operator type tests using internal meters or in-
with original manufacturing standards. Rebuild is
dicating devices.
performed only when required by operational
c. Service. To clean, to preserve, to charge, and
considerations or other paramount factors and then
to add fuel, lubricants, cooling agents, and air. If it
only at the depot maintenance category. Rebuild
is desired that elements, such as painting and
reduces to zero the hours or miles the equipment, or
lubricating, be defined separately, they may be so
component thereof, has been in use.
listed.
l. Symbols. The uppercase letter placed in the
d. Adjust. To rectify to the extent necessary to
appropriate column indicates the lowest level at
bring into proper operating range.
which that particular maintenance function is to be
e. Align. To adjust two or more components or
performed.
assemblies of an electrical or mechanical system so
B-3. Explanation of Format
that their functions are properly synchronized. This
a. Column 1, Group Number. Column 1 lists
does not include setting the frequency control knob
group numbers, the purpose of which is to identify
of radio receivers or transmitters to the desired
c o m p o n e n t s , assemblies, subassemblies and
modules with the next higher assembly.
f. Calibrate. To determine the corrections to be
b. Column 2, Functional Group. Column 2 lists
made in the readings o f instruments or test
the noun names of components, assemblies,
equipment used in precise measurement. Consists
subassemblies and modules on which maintenance
of the comparison of two instruments, one of which
is authorized.
is a certified standard of known accuracy, to detect
c. Column 3, Maintenance Functions. Column
and adjust any discrepancy in the accuracy of the
3 lists the maintenance category at which per-
instrument being compared with the certified
formance of the specific maintenance function is
standard.
authorized. Authorization to perform a function at
g. Install. To set up for use in an operational
any category also includes authorization to perform
environment such as an encampment, site, or
that function at higher categories. The codes used
vehicle.
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