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TM 10-5430-237-12&P
0026 00
0026 00-2
8. Replace - To remove an unserviceable item and install a serviceable counterpart in its place.
"Replace" is authorized by the MAC and assigned maintenance level is shown as the 3rd position code of
the SMR code.
9. 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 item by correcting specific damage, fault, malfunction, or failure in a part,
subassembly, module (component or assembly), end item, or system.
10. Overhaul - That maintenance effort (service/action) prescribed to restore an item to a completely
serviceable/operational condition as required by maintenance standards in appropriate technical
publications (i.e., DMWR). Overhaul is normally the highest degree of material maintenance preformed
by the Army. Overhaul does not normally return an item to like new condition.
11. Rebuild - Consists of those services/actions necessary for the restoration of unserviceable equipment
to a like new condition in accordance with original manufacturing standards. Rebuild is the
highest degree of material maintenance applied to Army equipment. The rebuild operation includes
the act of returning to zero those age measurements (hours/miles, etc.) considered in classifying Army
equipment/components.
Columns In The MAC Table 1.
1. Column 1, Group Number, lists functional group code numbers, the purpose of which is to identify
maintenance significant components, assemblies, subassemblies, and modules with the next higher
assembly. End item group number shall be "00."
2. Column 2, Component/Assembly, contains the names of components, assemblies, subassemblies,
and modules for which maintenance is authorized.
3. Column 3, Maintenance Functions, lists the functions to be performed on the item listed in Column 2.
4. Column 4, Maintenance Level, specifies each level of maintenance authorized to perform each
function listed in Column 3, by indicating work time required (expressed as man-hours in whole hours or
decimals) in the appropriate subcolumn. If the number 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 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
operating conditions. This time includes preparation time (including any necessary
disassembly/assembly time), troubleshooting/fault location time, and quality assurance time in addition to
the time required to perform the specific tasks identified for the maintenance functions authorized in the
MAC.
5. Column 5, Tools and Test Equipment, specifies, by code, required tool and test equipment
requirements.
6. Column 6, Remarks, when applicable, contains a letter code, in alphabetical order.
Explanation of Columns In Table 2. Tool and Test Equipment Requirements
1. Column 1, Reference Code correlates with a code used in the MAC, Column 5.
2. Column 2, Maintenance Level is the lowest level of maintenance authorized to use the tool or test
equipment.
3. Column 3, Nomenclature, names or identifies the tool or test equipment.
4. Column 4, National Stock Number of the tool or test equipment.
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