TM 10-4320-346-12&Pmaintenance function vary at different maintenance categories, appropriate work time figures will be shown foreach category. The work time figure represents the average time required to restore an item (assembly,subassembly, component, module, end item, or system) to a serviceable condition under typical field operatingconditions. 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 toperform the specific tasks identified for the maintenance functions authorized in the maintenance allocationchart. The symbol designations 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 thedesignated function.f.Column6, Remarks.This column shall, when applicable, contain a letter code, inalphabetic order, which shall be keyed to the remarks contained in Section IV.B-4.EXPLANATION OF COLUMNS IN TOOL AND TEST EQUIPMENT REQUIREMENTS, SECTION III.a.Column1,ReferenceCode.The tool and test equipment reference code correlates witha code used in the MAC, Section II, Column 5.b. Column2,MaintenanceCategory.The lowest category of maintenance authorized to usethe tool or test equipment.c.Column3,Nomenclature.Name or identification of the tool or test equipment.d. Column4,NationalStockNumber. The National stock number of the tool or testequipment.e.Column5,ToolNumber. The manufacturer's part number.B-5.EXPLANATION OF COLUMNS IN REMARKS, SECTION IV.a.Column1,ReferenceCode.The code recorded in column 6, Section IIb. Column2,Remarks.This column lists information pertinent to the maintenance function beingperformed as indicated in the MAC, Section II.B-3
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