MAINTENANCE ALLOCATION CHART (FOR ARMY AND MARINE
a. This section provides a general explanation of
all maintenance and repair functions authorized at
various maintenance levels.
b. Section II - designates overall responsibility
for the performance of maintenance functions on
the identified end item or component and the work
measurement time required to perform the func-
tions by the designated maintenance level. The im-
plementation of the maintenance functions upon
the end item or component will be consistent with
the assigned maintenance functions.
c. Section III - lists the tools and test equipment
required for each maintenance function as refer-
enced from Section II.
C-2. Explanation of Columns in Sec-
a. Column 1. Group Number. Column 1 lists
group numbers to identify related components. as-
semblies, sub-assemblies, and modules with their
next higher assembly. The applicable groups are
listed in the MAC in disassembly sequence begin-
ning with the first group removed.
b. Column 2. Component/Assembly.
umn contains the noun names of components, as-
semblies, sub-assemblies and modules
maintenance is authorized.
c. Column 3. Maintenance Functions.
T h i
column lists the functions to be performed on the
item listed in column 2. The maintenance functions
are defined as follows:
(1) Inspect. To determine serviceability of an
item by comparing its physical, mechanical, and/or
electrical characteristics with established stan-
dards through examination.
(2) 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.
(3) Service. Operating required periodically
to keep an item in proper operating condition, i.e., to
clean (decontaminated), to preserve, to drain, to
paint, or to replenish fuel, lubricants, hydraulic flu-
ids, or compressed air supplies.
(4) Adjust. T O maintain within prescribed
limits, by bringing into proper or exact position, or
by setting the operating characteristics to specified
(5) Align. To adjust specified variable ele-
ments of an item to bring about optimum or desired
(6) Calibrate. T O determine and cause cor-
rections to be made or to be adjusted on instruments
or test measuring and diagnostic equipments used
in precision measurement. Consists of comparison
of two instruments, one of which is a certified stan-
dard of known accuracy, to detect and adjust any
discrepancy in the accuracy of the instrument being
(7) Install. The act of emplacing, seating, or
fixing into position an item, part of module (com-
ponent or assembly) in a manner to allow the proper
functioning of an equipment or system.
The act of substituting a ser-
viceable like type part, sub- assembly, or module
or assembly) for an