TM 10-8340-205-13&Pi.Repair. The application of maintenance services1including fault location/troubleshooting2,removal/installation, and disassembly/assembly3 procedures, and maintenance actions4 to identify troubles andrestore serviceability to an item by correcting specific damage, fault, malfunction, or failure in a part,subassembly, module (component or assembly), and item, or system.j.Overhaul.That maintenance effort (service/action) prescribed to restore an item to a completelyserviceable/operational condition as required by maintenance standards in appropriate technical publications(i.e., DMWR) Overhaul in normally the highest degree of maintenance performed by the Army. Overhaul doesnot normally return an item to like new condition.k.Rebuild.Consists of those service/actions necessary for the restoration of unserviceable equipment toa like-new condition in accordance with original manufacturing standards. Rebuild is the highest degree ofmaterial maintenance applied to Army equipment. The rebuild operation includes the act of returning to zerothose age measurements (hours, miles, etc.) considered in classifying Army equipment and componentsB.3 EXPLANATION OF COLUMNS IN THE MAC, SECTION II.a.Column1-GroupNumber. Column 1 lists functional group code numbers, the purpose of which is toidentify maintenance significant components, assemblies, subassemblies, and modules with the next higherassemblyb.Column2-Component/Assembly.Column 2 contains the names of components, assemblies,subassemblies, and modules for which maintenance is authorizedc.Column3-MaintenanceFunction. Column 3 lists the functions to be performed on the item listed Incolumn 2. (For detailed explanation of these functions, see paragraph B.2 )1Service - Inspect, test, service, adjust, aline, calibrate, and/or replace2Fault location troubleshooting - The process of investigating and detecting the cause of equipmentmalfunc- tioning; the act of isolating a fault within a system or unit under test (UUT).3Disassembly/assembly - The step by-step breakdown (taking apart) of a spare/functional group codeditem to the level of its least component, that is assigned as SMR code for the level of maintenance underconsideration (i.e., identification as maintenance significant).4Actions - Welding, grinding, riveting, straightening, facing, machining, and/or resurfacing.B-2
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