TM 11-6125-252-15
APPENDIX B
MAINTENANCE ALLOCATION
Section I. INTRODUCTION
B-1. General
grinding, riveting, straightening, facing, re-
machining, or resurfacing) to restore serv-
This appendix provides a summary of the mainte-
iceability to an item by correcting specific damage,
nance operations for Motor-Generator PU-724/G.
fault, malfunction, or failure in a part, subassem-
It authorizes categories of maintenance for spe-
bly, module (component or assembly), end item, or
cific maintenance functions on repairable items
system.
and components and the tools and equipment
j. Overhaul. That maintenance effort (service/
required to perform each function. This appendix
action) necessary to restore an item to a completely
may be used as an aid in planning maintenance
serviceable/operational condition as prescribed by
operations.
maintenance standards (i. e., DMWR) in appropri-
B-2. Maintenance Function
a t e technical publications. Overhaul is normally
the highest degree of maintenance performed by
Maintenance functions will be limited to and
the Army. Overhaul does not normally return an
defined as follows:
item to like new condition.
a. Inspect. To determine the serviceability of an
k. Rebuild. Consists of those services/actions
item by comparing its physical, mechanical, and/or
necessary for the restoration of unserviceable
electrical characteristics with established stand-
equipment to a like new condition in accordance
ards through examination.
with original manufacturing standards. Rebuild is
b. Test. To verify serviceability and to detect
the highest degree of materiel maintenance
incipient failure by measuring the mechanical or
applied to Army equipment. The rebuild operation
electrical characteristics of an item and comparing
i n c l u d e s the act of returning to zero those age
those characteristics with prescribed standards.
measurements (hours, miles, etc. ) considered in
c. Service. Operations required periodically to
c l a s s i f y i n g Army equipments/components.
keep an item in proper operating condition; i.e., to
clean (decontaminate), to preserve, to drain, to
paint, or to replenish fuel, lubricants, hydraulic
B-3. Column Entries
fluids, or compressed air supplies.
d. Adjust. To maintain, within prescribed limits,
a. Column 1, Group Number. Column 1 lists
by bringing into proper or exact position, or by
group numbers, the purpose of which is to identify
setting the operating characteristics to the
components, assemblies, subassemblies, and mod-
s p e c i f i e d parameters.
ules with the next higher assembly.
e. Align. To adjust specified variable elements of
b. Column 2, Component/Assembly. Column 2
an item to bring about optimum or desired
c o n t a i n s the noun names of components, as-
performance.
s e m b l i e s , subassemblies, and modules for which
m a i n t e n a n c e is authorized.
f. Calibrate. T O determine and cause corrections
c. Column 3, Maintenance Functions. Column 3
to be made or to be adjusted on instruments or test
m e a s u r i n g and diagnostic equipments used in
l i s t s the functions to be performed on the item
precision measurement. Consists of comparisons of
listed in column 2. When items are listed without
t w o i n s t r u m e n t s , o n e of which is a certified
maintenance functions, it is solely for purpose of
standard of known accuracy, to detect and adjust
having the group numbers in the MAC and RPSTL
any discrepancy in the accuracy of the instrument
coincide.
d. Column 4, Maintenance Category. Column 4
being compared.
g. Install. The act of emplacing, seating, or fixing
specifies, by the listing of a "work time" figure in
into position an item, part, module (component or
the appropriate subcolumn(s), the lowest level of
a s s e m b l y ) in a manner to allow the proper
m a i n t e n a n c e authorized to perform the function
functioning of the equipment or system.
listed in column 3. This figure represents the active
h. Replace. The act of substituting a serviceable
time required to perform that maintenance func-
like type part, subassembly, or module (component
tion at the indicated category of maintenance. If
or assembly) for an unserviceable counterpart.
the number or complexity of the tasks within the
i. Replace. The application of maintenance serv-
listed
maintenance
function
vary
at
different
ices (inspect, test, service, adjust, align, calibrate,
m a i n t e n a n c e categories, appropriate "work time"
replace) or other maintenance actions (welding,
figures will be shown for each category. The
B-1
