TM 10-3610-202-14
APPENDIX C
MAINTENANCE ALLOCATION CHART
Section I. INTRODUCTION
C-1. General.
a.
This section provides a general explanation of all
maintenance and repair functions authorized at various
maintenance levels.
b.
The Maintenance Allocation Chart (0'AC) in
Section II designates overall responsibility for the
performance of maintenance functions on the identified
end item or component. The implementation of the
maintenance functions upon the end item or component
will be consistent with the assigned maintenance
functions.
c.
Section III lists the special tools and test
equipment required for each maintenance function as
referenced from Section II.
d.
Section IV contains supplemental instructions on
explanatory notes for a particular maintenance function.
C-2. Maintenance Functions.
a.
Inspect. To determine the serviceability of an
item by comparing its physical, mechanical and/or
electrical
characteristics
with
established
standards
through examination.
b.
Test. To verify serviceability and detect incipient
failure by measuring the mechanical or electrical
characteristics
of
an
item
and
comparing
those
characteristics with prescribed standards.
c.
Service. Operations required periodically to keep
an item in proper operating condition i.e., to clean
(decontaminate), to preserve, to drain, to paint, or to
replenish fuel, lubricants, hydraulic fluids, or compressed
air supplies.
d.
Adjust. To maintain, within prescribed limits, by
bringing into proper or exact position, or by setting the
operating characteristics to specified parameters.
e.
Align. To adjust specified variable elements of
an item to bring about optimum or desired performance.
f.
Calibrate. To determine and cause corrections to
be made or to be adjusted on instruments or test
measuring and diagnostic equipments used in precision
measurement.
Consists
of
comparisons
of
two
instruments, one of which is a certified standard of known
accuracy, to detect and adjust any discrepancy in the
accuracy of the instrument being compared.
g.
Install The act of emplacing, seating, or fixing
into position an item, part, or module (component or
assembly) in a manner to allow the proper functioning of
an equipment or system.
h.
Replace. The act of substituting a serviceable
like type part, subassembly, or module (component or
assembly) for an unserviceable counterpart.
i.
Repair. The application of maintenance services
(inspect, test, service, adjust, align, calibrate, or replace)
or other maintenance actions (welding, grinding, riveting,
straightening, facing, remachining, or resurfacing) to
restore serviceability to an item by correcting specific
damage, fault, malfunction, or failure in a part,
subassembly, module (component or assembly), and
item, or system.
j.
Overhaul That maintenance effort (services/
actions) necessary to restore an item to a completely
serviceable/operational
condition
as
prescribed
by
maintenance standards (i.e., DMWR) in appropriate
technical publications. Overhaul is normally the highest
degree of maintenance performed by the Army. Overhaul
does not normally return an item to like new condition.
k.
Rebuild. Consists of those services/actions
necessary for the restoration of unserviceable equipment
to a like new condition in accordance with original
manufacturing standards. Rebuild is the highest degree
of material maintenance applied to Army equipment. The
rebuild operation includes the act of returning to zero
those age measurements (hours/miles, etc.) considered in
classifying Army equipments/components.
C-3. Column Entries Used in the MAC
a.
Column 1, Group Number. Column 1 lists
group numbers, the purpose of which is to identify
components, assemblies, subassemblies, and modules
with the next higher assembly.
b.
Column 2, Component/Assembly. Column 2
contains
the
names
of
components,
assemblies,
subassemblies and modules for which maintenance is
authorized.
c.
Column 3, Maintenance Functions. Column 3
lists the functions to be performed on the item listed in
column 2. (For detailed explanation of these functions,
see paragraph C-2.)
C-1
