To determine and cause corrections to be made or to be
adjusted on instruments or test measuring and diagnostic equipment used
in precision measurement.
Consists of the comparison of two instruments,
one of which is a certified standard of known accuracy, to detect and
adjust any discrepancy in the accuracy of the instrument Being compared.
The act of emplacing, seating, or fixing into position
an item, Part, module (component or assembly) in a manner to allow the
proper functioning of the equipment/system.
The act of substituting a serviceable like-type part, sub-
assembly, model (component or assembly) for an unserviceable counterpart.
The application of maintenance services (inspect, test,
service, adjust, align, calibrate, replace) or other maintenance actions
(welding, grinding, riveting, straightening, facing, remachining, or resur-
facing) to restore serviceability to an item by correcting specific damage,
fault, malfunction, or failure in a part, subassembly, module/component/
assembly, end item or system.
This function does not include the trial and
error replacement of running spare type items such as fuses, lamps, or
That periodic maintenance effort (service/action) neces-
sary to restore an item to a completely serviceable/operational condition
as prescribed by maintenance standards (e.g., DMWR) in appropriate technical
Overhaul is normally the highest degree of maintenance per-
formed by the Army. Overhaul does not normally return an item to like-new