To maintain within prescribed limits, by bringing
into proper or exact position, or by setting the operating
characteristics 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
equipments used in precision measurement.
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 of module (component or assembly) in a
manner to allow the proper functioning of an equipment or
The act of substituting a serviceable like type
part, sub-assembly, or module (component or assembly) for an
The application of maintenance services (inspect,
test, service, adjust, calibrate or replace) or other
maintenance actions (welding, grinding, riveting,
straightening, facing, remachining or resurfacing) to restore
serviceability to an item by correcting specific damage,
fault, malfunction or failure in a part, sub-assembly, module
(component or assembly), end item or system.
That maintenance effort (service/action) necessary
to restore an item to a completely serviceable/operational
condition as prescribed by maintenance standards (i.e., DMWR)
in appropriate technical publications.
Overhaul is normally
the highest degree of maintenance performed by the Army.
Overhaul does not normally return an item to a like new
Consists of those services/actions necessary for the
restoration of unserviceable equipment to a like new condition
in accordance with original manufacturing standards.
is the highest degree of material maintenance applied to Army
The rebuild operation includes the act of
returning to zero those age measurements (hours/miles, etc.)
considered in classifying Army equipment/components.
Column (4), Maintenance Category. This column is made Up of
sub-columns for each category of maintenance.
Work time figures
are listed in these sub-columns for the lowest level of maintenance
authorized to perform the function listed in Column (3). These
figures indicate the average active time required to perform the
maintenance function at the indicated category of maintenance under
typical field operating conditions: