TM 11-6625-244-12
APPENDIX B
MAINTENANCE ALLOCATION
Section I. INTRODUCTION
two instruments, one of which is a certified standard of
B-1. General
known accuracy, to detect and adjust any discrepancy in
This appendix provides a summary of the maintenance
the accuracy of the instrument being compared with the
operations covered in the equipment literature.
It
certified standard.
authorizes categories of maintenance for specific
g. Install. To set up for use in an operational
maintenance functions on repairable items and
environment such as an encampment, site, or vehicle.
components and the tools and equipment required to
h. Replace. To replace unserviceable items
perform each function. This appendix may be used as
with serviceable like items.
an aid in planning maintenance operations.
i.
Repair. To restore an item to serviceable
condition through correction of a specific failure of
B-2. Maintenance Functions
unserviceable condition. This function includes, but is
Maintenance functions will be limited to and defined as
not limited to welding, grinding, riveting, straightening,
follows:
and replacement of parts other than the trial and error
a. Inspect. To determine serviceability of an item
replacement of running spare type items such as fuses,
by comparing its physical, mechanical, and electrical
lamps, or electron tubes.
characteristics with established standards.
j.
Overhaul. Normally, the highest degree of
b. Test. To verify serviceability and to detect
maintenance performed by the Army in order to minimize
incipient electrical or mechanical failure by use of special
time work in process is consistent with quality and
equipment such as gages, meters, etc.
This is
economy of operation. It consists of that maintenance
accomplished with external test equipment and does not
necessary to restore an item to completely serviceable
include operation of the equipment and operator type
condition as prescribed by maintenance standards in
tests using internal meters or indicating devices.
technical publications for each item of equipment.
c. Service. To clean, to preserve, to charge, and
Overhaul normally does not return an item to like new,
to add fuel, lubricants, cooling agents, and air. If it is
zero mileage, or zero hour condition.
desired that elements, such as painting and lubricating,
k. Rebuild.
The highest degree of materiel
be defined separately, they may be so listed.
maintenance. It consists of restoring equipment as
d.
Adjust. To rectify to the extent necessary to
nearly as possible to new condition in accordance with
bring into proper operating range.
original manufacturing standards. Rebuild is performed
e.
Align. To adjust two or more components or
only when required by operational considerations or
assemblies of an electrical or mechanical system so that
other paramount factors and then only at the depot
their functions are properly synchronized. This does not
maintenance category. Rebuild reduces to zero the
include setting the frequency control knob of radio
hours or miles the equipment, or component thereof, has
receivers or transmitters to the desired frequency.
been in use.
f.
Calibrate. To determine the corrections to be
1. Symbols. The uppercase letter placed in the
made in the readings of instruments or test equipment
appropriate column indicates the lowest level at
used in precise measurement.
Consists of the
comparison
of
B-1
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