TM 5-5430-212-13&P(4)Adjust. To maintain within prescribed limits, by bringing into proper or exact position, or by setting theoperating characteristics to specified parameters.(5)Align. To adjust specified variable elements of an item to bring about optimum or desired performance.(6)Calibrate. To determine and cause corrections to be made or to be adjusted on instruments or testmeasuring and diagnostic equipments used in precision measurement. Consists of comparison of twoinstruments, one of which is a certified standard of known accuracy, to detect and adjust anydiscrepancy in the accuracy of the instrument being compared.(7)Install. The act of emplacing seating, or fixing into position an item, part of module (component orassembly) in a manner to allow the proper functioning of an equipment or system.(8)Replace. The act of substituting a serviceable like type part, sub-assembly, or module (component orassembly) for an unserviceable counterpart.(9)Repair. The application of maintenance services (inspect, test, service, adjust, calibrate or replace) orother 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.(10) Overhaul. That maintenance effort (service/action) necessary to restore an item to a completelyserviceable/operational condition as prescribed by maintenance standards (i.e., DMWR) in appropriatetechnical publications. Overhaul is normally the highest degree of maintenance performed by the Army.Overhaul does not normally return an item to a like new condition.(11) Rebuild. Consists of those services/actions necessary for the restoration of unserviceable equipment toa like new condition in accordance with original manufacturing standards. Rebuild is the highest degreeof material maintenance applied to Army equipment. The rebuild operation includes the act of returningto zero those age measurements (hours/miles, etc.) considered in classifying Armyequipment/components.d.Column(4),MaintenanceCategory. This column is made up of sub-columns for each category ofmaintenance. Work time figures are listed in these sub-columns for the lowest level of maintenanceauthorized to perform the function listed in Column (3). These figures indicate the average active timerequired to perform the maintenance function at the indicated category of maintenance under typical fieldoperating conditions:B-2
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