EXPLANATION OF COLUMNS IN SECTION II

TM 5-4120-374-13

(7) Install. 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.

(8) Replace. The act of substituting a serviceable like type part, subassembly or module (component

or assembly) for an unserviceable counterpart.

(9) Repair. The application of maintenance services (inspect, test, service, adjust, align, 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.

10) Overhaul. That maintenance effort (service/action) necessary to restore an item to a completely

serviceable/operational condition as prescribed by maintenance standards in appropriate technical manuals.

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 equip-

ment to a like new condition in accordance with original manufacturing standards. Rebuild is the highest

degree of material maintenance applied to Army equipment. The rebuild operation includes the act of

returning to zero those age measurements (hours/miles, etc.) considered in classifying Army equipments/

components.

d. Column (4), Maintenance Level. 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.

e. Column (5), Tools and Equipment. This column is provided for referencing by code, the common

tool sets (not individual tools) special tools, test and support equipment required to perform the desig-

nated functions (Not Applicable).

f. Column 6, Remarks. Column 6 contains a numerical code which shall be keyed to the remarks

contained in Section IV.

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