TM 10-5410-223-14\ 1
APPENDIX B
MAINTENANCE ALLOCATION CHART
Section I. INTRODUCTION
B-1. General
by setting the operating characteristics to specified
parameters.
a. This section provides a general explanation of
(5) Align, To adjust specified variable
all maintenance and repair functions authorized at
elements of an item to bring about optimum or
various maintenance levels.
desired performance.
b. Section II designates overall responsibility for
(6) C a l i b r a t e . To determine and cause
the performance of maintenance functions on the
corrections to be made or to be adjusted on in-
identified end item or component and the work
struments or test measuring and diagnostic
measurement time required to perform the functions
equipments used on instruments or test measuring
by the designated maintenance level. The im-
and diagnostic equipments used in precision
plementation of the maintenance functions upon the
measurement. Consists of comparison of two in-
end item or component will be consistent with the
struments, one of which is certified standard of
assigned maintenance functions.
known accuracy, t o d e t e c t a n d a d j u s t a n y
c. Section III lists the tools and test equipment
discrepancy in the accuracy of the instrument being
required for each maintenance function as referenced
compared.
from Section II.
(7) Install. The act of emplacing, seating, or
B-2. Explanation of Columns in Section II
fixing into position an item, part or module (com-
a. Column (1), Group Number. Column 1 lists
ponent or assembly) in a manner to allow the proper
group numbers to identify related components,
functioning of an equipment or system.
assemblies, sub-assemblies, and modules with their
(8) Replace. The act of substituting a ser-
next higher assembly. The applicable groups are
viceable like type part, sub-assembly, or module
listed in the MAC in disassembly sequence begin-
(component or assembly) for an unserviceable
ning with the first group removed.
counterpart.
b. Column (2), Component/Assembly. T h i s
(9) Repair. The application of maintenance
column contains the noun names of components,
services (inspect, test, service, adjust, align,
assemblies, sub-assemblies and modules for which
calibrate, or replace) or other maintenance actions
maintenance is authorized.
(welding, grinding, riveting, straightening, facing,
c. Column (3), Maintenance Functions. This
remachining or resurfacing) to restore serviceability
column lists the functions to be performed on the
to an item by correcting specific damage, fault,
item listed in Column (2). The maintenance functions
malfunction, or failure in a part, sub-assembly,
are defined as follows:
module (component or assembly), end item, or
(1) Inspect. To determine serviceability of an
system.
item by comparing its physical, mechanical, and/or
(10) Overhaul. That maintenance effort
electrical characteristics with established standards
(service/action) necessary to restore an item to a
through examination.
completely serviceable/operational condition as
(2) Test. To verify serviceability and detect
prescribed by maintenance standards (i.e,, DMWR)
incipient failure by measuring the mechanical or
in appropriate technical publications, Overhaul is
electrical characteristics of an item and comparing
normally the highest degree of maintenance per-
those characteristics with prescribed standards.
formed by the Army. Overhaul does not normally
(3) Service. Operations required periodically to
return an item to like new condition,
keep an item in proper operating condition, i.e., to
ser -
(11) Rebuild. Consists of
those
clean (decontaminated), to preserve, to drain, to
vices/actions necessary for the restoration of un-
paint, or to replenish fuel, lubricants, hydraulic
serviceable equipment to a like new condition in
fluids, or compressed air supplies.
accordance with original manufacturing standards,
(4) Adjust. T o maintain within prescribed
Rebuild is the highest degree of materiel main-
limits, by bringing into proper or exact position, or
B-1
