MAINTENANCE FUNCTIONS (CONT) - TM-9-2320-285-24-20650

TM 9-2320-285-24-2

B-2. MAINTENANCE FUNCTIONS (CONT)

g. Remove/Install. To remove and install the same item when required to perform service or other maintenance

functions. Install may be the act of emplacing, seating, or fixing into position a spare, repair part, or module (component or

assembly) in a manner to allow the proper functioning of an equipment or system.

h. Replace. To remove an unserviceable item and install a serviceable counterpart in its place.

"Replace" is

authorized by the MAC and is shown as the 3rd position code of the SMR code.

i. Repair. The application of maintenance services or other maintenance actions to 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.

j. 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 maintenance performed by the Army. Overhaul does not normally

return an item to like new condition.

k. 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 materiel 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 and components.

B-3. EXPLANATION OF COLUMNS IN THE MAC, SECTION II

a. Column 1 Group Number. Column 1 lists functional group code numbers, the purpose of which is to identify

maintenance significant components, assemblies, subassemblies, and modules with the next higher assembly.

b. Column 2 Component/Assembly. Column 2 contains the names of components, assemblies, subassemblies, and

modules for which maintenance is authorized.

c. Column 3 Maintenance Function. 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.)

B-2