TM 5-6675-306-14
APPENDIX D
MAINTENANCE ALLOCATION CHART
D-1.
General
(4) Adjust. To maintain within prescribed limits, by
a. This section provides a general explanation of
bringing into proper or exact position, or by setting the
operating characteristics to specified parameters.
all maintenance and repair functions authorized at
various maintenance levels.
(5) Align. To adjust specified variable elements of
b. Section II designates overall responsibility for
an item to bring about optimum desired performance.
the performance of maintenance functions on the
(6) Calibrate. To determine and cause corrections
identified end item or component and the work
to be made or to be adjusted on instruments or test
measurement time required to perform the functions by
measuring and diagnostic equipment used in precision
the designated maintenance level. The implementation
measurement. Consists of comparison of two
of the maintenance functions upon the end item or
instruments, one of which is a certified standard of
component will be consistent with the assigned
known accuracy, to detect and adjust any discrepancy in
maintenance functions.
the accuracy of the instrument being compared,
c. Section III lists the tools and test equipment
(7) Install. The act of employing, seating, or fixing
required for each maintenance function as referenced
into position an item, part, or module (component or
from Section II.
assembly) in a manner to allow the proper functioning
D-2.
Explanation of Columns in Section II
equipment or system.
a. Column 1), Group Number. Column 1 list group
(8) Replace. The act of substituting a serviceable
numbers to identify related components, assemblies,
like type part, sub-assembly, or module (component or
sub-assemblies, and modules and their next higher
assembly) for an unserviceable counterpart.
assembly. The applicable groups are listed in the MAC
in disassembly sequence beginning with the first group
(9) Repair. The application of maintenance services
removed.
(inspect, test, service, adjust, align, calibrate, or replace)
b. Column (2), Component/Assembly.
or other maintenance actions (welding, grinding,
This
riveting,
straightening,
facing,
remachining
or
column contains the noun names of components,
resurfacing) to restore serviceability to an item by
assemblies, sub-assemblies and modules for which
correcting specific damage, fault, malfunction, or failure
maintenance is authorized.
in a part, sub-assembly, module (component or
c. Column (3), Maintenance Functions.
assembly), end item, or system.
This
column lists the functions to be performed on the item
(10) Overhaul.
That
maintenance
effort
listed in Column 2. The maintenance functions are
(service/action) necessary to restore an item to a
defined as follows:
completely
serviceable/operational
condition
as
(1) Inspect. To determine serviceability of an item
prescribed by maintenance standards (i.e. DMWR) in
appropriate technical publications. Overhaul is normally
by comparing its physical, mechanical, or electrical
the highest degree of maintenance performed by the
characteristics with established standards through
Army. Overhaul does not normally return an item to a
examination.
like new condition .
(2) Test. To verify serviceability and detect
(11) Rebuild. Consists of those services/actions
incipient failure by measuring the mechanical or
necessary for the restoration of unserviceable
electrical characteristics of an item and comparing those
equipment to a like new condition in accordance with
characteristics with prescribed standards.
original manufacturing standards. Rebuild is the highest
(3) Service.
degree of material maintenance applied to Army
Operations required periodically
equipment. The rebuild operation includes the act of
to keep an item in proper operating condition, i.e., to
returning to zero those age measurements
clean (decontaminate), to preserve to drain, to paint, or
to replenish fuel, lubricants, hydraulic fluids, or
compressed air supplies.
Change 1 D-1
Previous Page
