To maintain, within prescribed limits, by bringing
into proper or exact position, or by setting the operating character-
istics to specified parameters,
To adjust specified variable elements of an item to
bring about optimum or desired performance.
To determine and cause corrections to be made or
to be adjusted on instruments or test measuring and diagnostic equip-
Consists of comparisons of two
ments used in precision measurement.
one of which is a certified standard of known accuracy,
to detect and adjust any discrepancy in the accuracy of the instru-
ment being compared.
The act of emplacing, seating, or fixing into position
an item, part, or module (component or assembly) in a manner to allow
the proper functioning of an equipment or system.
The act of substituting a serviceable like type part,
subassembly, or module (component or assembly) for an unserviceable
The application of maintenance services (inspect, test,
service, adjust, align, calibrate, or replace) or other maintenance
actions (welding, grinding, riveting, straightening, facing, remachin-
ing, or resurfacing) to restore serviceability to an item by correct-
ing specific damage, fault, malfunction, or failure in a part, sub-
assembly, module (component or assembly), and item, or system.
That maintenance effort (services/actions) necessary
to restore an item to a completely serviceable/operational condition
as prescribed by maintenance standards (i.e. , DMWR) in appropriate
Overhaul is normally the highest degree of
Overhaul does not normally return
maintenance performed by the Army.
an item to like new condition.