TM 5-4310-386-14j. 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 appropriate technicalpublications . Overhaul is normally the highest degree of maintenance performed by the Army. Overhaul does notnormally return 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 materielmaintenance applied to Army equipment. The rebuild operation includes the act of returning to zero those agemeasurements (hours, miles, etc.) considered in classifying Army equipments/components.B-3. Column Entriesa. Column 1, Group Number.Column 1 lists group numbers, the purpose of which is to identify components,assemblies, subassemblies, and modules with the next higher assembly.b. Column 2, Component/Assembly.Column 2 contains the noun names of components, assembliessubassemblies, and modules for which maintenance is authorized.c. Column 3, Maintenance Functions. Column 3 lists the functions to be performed on the item listed in column 2.When items are listed without maintenance functions, it is solely for purpose of having the group numbers in the MACand RPSTL coincide.d. Column 4, Maintenance Level.Column 4 specifies, by the listing of a "work time" figure in the appropriatesubcolumn(s), the lowest level of maintenance authorized to perform the function listed in column 3. This figurerepresents the active time required to perform that maintenance function at the indicated level of maintenance. If thenumber or complexity of the tasks within the listed maintenance function vary at different maintenance levels,appropriate "work time" figures will be shown for each level. The number of task-hours specified by the "work time"figure represents the average time required to restore an item (assembly, subassembly, component, module, end item orsystem) to a serviceable condition under typical field operating conditions. This time includes preparation time,troubleshooting time, and quality assurance/quality control time in addition to the time required to perform the specifictasks identified for the maintenance functions authorized in the maintenance allocation chart. Subcolumns of column 4are as follows:UNITC - Operator/CrewO - UnitINTERMEDIATEF - Direct SupportH - General SupportDEPOTD - Depote. Column 5, Tools and Equipment.Column 5 specifies by code, those common tool sets (not individual tools)and special tools, test, and support equipment required to perform the designated function.B-2
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