To maintain or regulate,
within prescribed limits,
into proper or exact position, or
by setting the operating
tics to specified parameters.
To adjust specified variable
optimum or desired performance.
To determine and cause corrections to be made or to be ad-
justed on instruments or test, measuring, and diagnostic equipments used
in precision measurement.
Consists of comparisons 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.
To remove and install the same item when required to
perform service and other maintenance functions. Install may be the act
of emplacing, seating, or fixing into position a spare, repair part, or
module (component or assembly) in a manner to allow the proper function-
ing of an equipment or system.
To remove an unserviceable item and install a serviceable
"Replace" is authorized by the MAC and is
counterpart in its place.
shown as the 3rd position code of the SMR code.
The application of maintenance services, including fault
procedures, and maintenance actions to identify troubles and restore
serviceability to an item by correcting specific damage, fault, malfunc-
tion, or failure in a part, subassembly, module (component or assembly),
end item, or system.
nce effort (service/action) prescribed to restore
an item to a completely
serviceable/operational condition as required by
maintenance standards in
appropriate technical publications (i.e., DMWR).
Overhaul is normally the
highest degree of maintenance performed by the
Overhaul does not
normally return an item to like new condition.
Consists of those services/actions necessary for the restora-
tion of unserviceable equipment to a like new condition in accordance
Rebuild is the highest degree of
with original manufacturing standards.
The rebuild operation
material maintenance applied to Army equipment.
includes the act of returning to zero those age measurements
(hours/miles, etc.) considered in classifying Army equipment/components.
EXPLANATION OF COLUMNS IN THE MAC, SECTION II.
Column 1, Group Number.
Column 1 lists functional group code numbers,
the purpose of which is to identify maintenance significant components,
assemblies, subassemblies, and modules with the next higher assembly.