g. Install. The act of emplacing, seating, or fixing into position an item, part, or
module (component assembly) in a manner to allow the proper functioning of the equip-
ment or system.
h. Replace. The act of substituting a serviceable like type part, subassembly, or
module (component or assembly) for an unserviceable counterpart.
i. Repair. The application of maintenance services (inspect, test, service, adjust,
align, calibrate, replace) or other maintenance actions (welding, grinding, riveting,
straightening, facing, remachining, resurfacing) to restore serviceability to an item by cor-
recting 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) necessary to restore an item
to a completely serviceable/operational condition as prescribed by maintenance
standards (i.e., DMWR) in appropriate technical publications. 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
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
(hours, miles, etc.) considered in classifying Army
B-3. EXPLANATION OF COLUMNS, Section II
a. 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
b. Column 2, Component/Assembly. Column 2 contains the noun names of
components, assemblies, subassemblies, and modules for which maintenance is
c. Column 3, Maintenance Functions. Column 3 list the functions to be performed
on the item listed in Column 2.When items are listed without maintenance functions, it is
solely the purpose of having the group numbers in the MAC and RPSTL coincide.