MAINTENANCE ALLOCATION CHART
Section I. INTRODUCTION
R-Test. To verify serviceability and
electrical or mechanical failure by use of test,
a. This section provides a general explanation of all
maintenance and repair functions authorized at various
C-Service. To clean, to preserve, to charge, and to
add fuel, lubricants, cooling agents, and air.
b. Section II designates overall responsibility for
D-Adjust. To rectify to the extent necessary to
the performance of maintenance functions on the
bring into proper operating range.
identified end item or component. The implementation
E-Align. To adjust specified variable elements of
of the maintenance functions upon the end item or
an item to bring to optimum performance.
component will be consistent with the assigned
F--Calibrate. To determine the corrections to be
made in the readings of instruments or test
c. Section III. Not Applicable.
equipment used in precise measurement. Con-
d. Section IV. Sot Applicable.
sists of the comparison of two instruments, one
of which is a certified standard of known
B-2. Explanation of Columns in Sec-
accuracy, to detect and adjust any discrepancy
in the accuracy of the instrument being com-
a. Group Number. Column (1). The assembly group
pared with the certified standard.
is a numerical group assigned to each assembly in a top
G--Install. To set up for use in an operational
down breakdown sequence. The applicable assembly
environment such as an emplacement, site, or
groups are listed on the MAC in disassembly sequence
beginning with the first assembly removed in a top
H-Replace. To replace unserviceable items with
down disassembly sequence.
serviceable like items.
b. Functional Group. Column (2). This column
I-Repair. Those maintenance operations neces-
contains a brief description of the components of each
sary to restore an item to serviceable condition
through correction of material damage or a
c. Maintenance Functions. Column (3). This column
specific failure. Repair may be accomplished at
lists the various maintenance functions (A through K)
each level of maintenance.
and indicates the lowest maintenance level authorized
J-K--Overhaul/Rebuild. The disassembly, test, and
to perform these functions. The symbol designations
inspection of the operating components and
for the various maintenance levels are as follows:
the basic structure to determine and accomplish
C-Operator or crew
the necessary rework, rebuild, replacement, and
servicing to obtain the desired performance.
F--Direct support maintenance
H-General support maintenance
Overhaul, rework, and rebuild are synonymous.
d. Tools and Equipment. Column (4). This column is
The maintenance functions are defined as follows :
provided for referencing by code the special tools and
A-Inspect. To determine serviceability of an item
test equipment required to perform the maintenance
by comparing its physical, mechanical, and
electrical characteristics with established
e. Remarks. Column (5). This column is provided
for referencing by code the remarks pertinent to the