TM 1-1730-232-13&PB-4. EXPLANATION OF COLUMNS IN THE MAC.Explanations of the columns used in the Maintenance Allocation Chart in Table B-1, are as follows:a. Group Number (Column 1).Column 1 lists the group number of the end item and assemblies of the end item.This manual uses Group codes 00 thru 03.b. Component/Assembly (Columns 2).Column 2 lists the name of the component or assembly assigned to thegroup number listed in column 1.c. Maintenance Function (Column 3).Column 3 lists the maintenance functions to be performed on the itemslisted in column 2. This manual uses maintenance functions INSPECT, REPLACE, and REPAIR.d. Maintenance Levels (Column 4).The maintenance levels AVUM, AVIM, and DEPOT are listed on theMaintenance Allocation Chart in individual columns. The work times are entered for the maintenance functionsauthorized at each maintenance level. Work times are presented in whole hours and/or decimal portions of hours. If awork time has not been established, the columnar presentation will indicate '--." Maintenance levels higher than the levelof maintenance indicated, are authorized to perform the indicated function.e. Tools and Equipment Reference Code (Column 5).Column 5 specifies, by code, those common tool sets(not individual tools), common TMDE, and special tools, special TMDE, and special support equipment required toperform the designated function.f. Remarks Code (Column 6).This column contains a numerical code, which is keyed to the remarks contained inSection IV, Table B-3.B-6
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