TM 10-7360-208-13&Ph. Replace. To remove an unserviceable item and install a serviceable counterpart in its place. "Replace" isauthorized by the MAC and is shown as the 3d position code of the SMR code.i.Repair. The application of maintenance services, including fault location/troubleshooting, removal/installation,and disassembly/assembly procedures, and maintenance actions to identify troubles and restore serviceability to an itemby correcting specific damage, fault, malfunction, or failure in a part, subassembly, module (component or assembly),end item, or system.j.Overhaul. The 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 is normally the highest degree of maintenance performed by the Army. Overhaul does not normallyreturn an item to like new condition.k. Rebuild. Consists of those services/actions necessary for the restoration of unserviceable equipment to a likenew condition in accordance with original manufacturing standards. Rebuild is the highest degree of materialmaintenance applied to Army equipment. The rebuild operation includes the act of returning to zero those agemeasurements (hours/miles, etc.) considered in classifying Army equipment/components.B-3 EXPLANATION OF COLUMNS IN THE MAC, SECTION II.a. Column1.GroupNumber. Column 1 lists functional group code numbers, the purpose of which is to identifymaintenance significant components, assemblies, subassemblies, and modules with the next higher assembly. End itemgroup number shall be "00".b. Column2.Components/Assembly. Column 2 contains the names of the components, assemblies,subassemblies, and modules for which maintenance is authorized.c. Column3.MaintenanceFunction. Column 3 lists the functions to be performed on the item listed in column 2.(For detailed explanation of these functions, see paragraph B-2.)d. Column4.MaintenanceCategory. Column 4 specifies, by the listing of a work time figure in the appropriatesubcolumn(s), the category of maintenance authorized to perform the function listed in Column 3. This figure representsthe active time required to perform that maintenance function at the indicated category of maintenance. If the number orcomplexity of the tasks within the listed maintenance function vary at different maintenance categories, appropriate worktime figures will be shown for each category. The work time figure represents the average time required to restore anitem (assembly, subassembly, component, module, end item, or system) to a serviceable condition under typical fieldoperating conditions. This time includes preparation time (including any necessary disassembly/assembly time),troubleshooting/fault location time, and quality assurance/quality control time in addition to the time required to performthe specific tasks identified for the maintenance functions authorized in the maintenance allocation chart. The symboldesignations for the various maintenance categories are as follows:C - Operator or crewO - Unit maintenanceF - Direct support maintenanceH - General support maintenanceD - Depot maintenancee. Column5.ToolsandEquipment. Column 5 specifies, by code, those common tool sets (not individual tools)and special tools, TMDE, and support equipment required to perform the designated function.f. Column6,Remarks. This column is provided for referencing by code the remarks (Section IV) pertinent to themaintenance functions.B-2
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