TM 11-5855-261-23
APPENDIX B
MAINTENANCE ALLOCATION
Section L INTRODUCTION
B-1. General
damage, fault, malfunction, or failure in a part, subas-
sembly, mocule (component or assembly), end item, or
This appendix provides a summary of the maintenance
system.
operations for the AN/PAQ-4. It authorizes categories
j. Overhaul. That maintenance effort (service/action)
of maintenance for specific maintenance functions on
necessary to restore an item to a completely serviceable/
repairable items and components and the tools and
operational condition as prescribed by maintenance
equipment required to perform each function. This ap-
standards (i.e., DMWR) in appropriate technical pub-
pendix may be used as an aid in planning maintenance
lications. Overhaul is normally the highest degree of
operations.
maintenance performed by the Army. Overhaul does
B-2. Maintenance Function
not normally return an item to like new condition.
k. Rebuild. Consists of those services/actions
Maintenance functions will be limited to and defined as
necessary for the restoration of unserviceable equip-
follows:
ment to a like new condition in accordance with original
a. Inspect. To determine the serviceability of an item
manufacturing standards. Rebuild is the highest degree
by comparing its physical, mechanical, and/or electrical
of materiel maintenance applied to Army equipment.
characteristics with established standards through ex-
The rebuild operation includes the act of returning to
amination.
zero those age measurements (hours, miles, etc. ) con-
b. Test. To verify serviceability and to detect incipient
sidered in classifying Army equipments/components.
failure by measuring the mechanical or electrical charac-
teristics of an item and comparing those characteristics
B-3. Column Entries
with prescribed standards.
a. Column 1, Group Number. Column 1 lists group
c. Service. Operations required periodically to keep
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
(decontaminate), to preserve, to drain, to paint, or to
the next higher assembly.
replenish fuel, lubricants, hydraulic fluids, or compressed
b. Column 2, Component/Assembly. Column 2 con-
air supplies.
tains the noun names of components, assemblies, sub-
d. Adjust. To maintain, within prescribed limits, by
assemblies, and modules for which maintenance is
bringing into proper or exact position, or by setting the
authorized.
operating characteristics to the specified parameters.
c. Column 3, Maintenance Function. Column 3 lists
e. Align. To adjust specified variable elements of an
the functions to be performed on the item listed in col-
item to bring about optimum or desired performance.
umn 2. When items are listed without maintenance
f. Calibrate. To determine and cause corrections to be
functions, it is solely for purpose of having the group
made or to be adjusted on instruments or test measuring
numbers in the MAC and RPSTL coincide.
and diagnostic equipments used in precision measure-
d. Column 4, Maintenance Category. Column 4
ment. Consists of comparisons of two instruments, one
specifies, by the listing of a "work time" figure in the
of which is a certified standard of know accuracy, to
appropriate subcolumn(s), the lowest level of main-
detect and adjust any discrepancy in the accuracy of the
tenance authorized to perform the function listed in col-
instrument being compared.
umn 3. This figure represents the active time required to
g. Install. The act of emplacing, seating, or fixing into
perform that maintenance function at the indicated
position an item, part, module (component or assembly)
category of maintenance. If the number or complexity
in a manner to allow the proper functioning of the
of the tasks within the listed maintenance function vary
equipment or system.
at different maintenance categories, appropriate "work
h. Replace. The act of substituting a serviceable like
time" figures will be shown for each categories, ap-
type part, subassembly, or module (component or as-
propriate "work time" figure will be shown for each
sembly) for an unserviceable counterpart.
category. The number of task-hours specified by the
i. Repair. The application of maintenance services (in-
"work time" figure represents the average time required
spect, test, service, adjust, align, calibrate, replace) or
to restore an item (assembly, subassembly, component,
other maintenance actions (welding, grinding, riveting,
module, end item or system) to a serviceable condition
straightening, facing, remachining, or resurfacing) to
under typical field operating conditions. This time in-
restore serviceability to an item by correcting specific
B-1
