NAVELEX EE181-AA-OMI-090/E121 SA-1954
MAINTENANCE ALLOCATION CHART
Section I. INTRODUCTION
d. Adjust. To maintain, within prescribed limits, by
bringing into proper or exact position, or by setting the
a. This section provides a general explanation of
operating characteristics to specified parameters.
all maintenance and repair functions authorized at
various maintenance levels.
e. Align. To adjust specified variable elements of
an item to bring about optimum or desired performance.
b. Section II designates overall responsibility for the
performance of maintenance functions on the identified
f. Calibrate. To determine and cause corrections to
end item or component. The implementation of the
be made, or to be adjusted on instruments for test,
maintenance functions upon the end item or component
mearing and diagnostic equipment used in precision
will be consistent with the assigned maintenance
Consists of comparisons of two
instruments, one of which is a certified standard of
known accuracy, to detect and adjust any discrepancy in
Section III lists the special tools and test
the accuracy of the instrument being compared.
equipment required for each maintenance function as
referenced from section II.
g. Install. The act of emplacing, seating, or fixing
into position an item, part, or module in a manner to
d. Section IV contains supplemental instructions or
allow the proper functioning of an equipment or system.
explanatory notes for a particular maintenance function.
h. Replace. The act of substituting a serviceable
like part, subassembly, or module for an unserviceable
functions are defined as follows:
The application of maintenance
services (inspect, test, service, adjust, align, calibrate, or
replace) or other maintenance actions (welding,
a. Inspect. To determine the serviceability of an
grinding, riveting, straightening, facing, re-machining, or
resurfacing) to restore serviceability to an item by
item by comparing its physical, mechanical and/or
correcting specific damage, fault, malfunction, or failure
electrical characteristics with established standards
in a part, subassembly, module, end item or system.
j. Overhaul. That maintenance effort (service/
b. Test. To verify serviceability and detect
incipient failure by measuring the mechanical or
actions) necessary to restore an item to a completely
electrical characteristics of an item and comparing those
serviceable/operational condition as prescribed by
characteristics with prescribed standards.
maintenance standards (i.e., DMWR) in appropriate
technical publications. Overhaul is normally the highest
c. Service. Operations required periodically to
degree of maintenance
keep an item in proper operating condition, i.e., to clean,
to preserve, to drain, to paint, or to replenish fuel,
lubricants, hydraulic fluids, or compressed air supplies.