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i.
Repair.
The
application
of
maintenance
services1,
including
fault
location/troubleshooting2,
removal/installation, and disassembly/assembly3 procedures, and maintenance actions4 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.
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/components.
1Services - inspect, test, service, adjust, align, calibrate, and/or replace.
2Fault locate/troubleshooting - The process of investigating and detecting
the cause of equipment malfunctioning; the act of isolating a fault within a system or unit under test (UUT).
3Disassemble/assemble - encompasses the step-by-step taking apart (or break- down) or a spare/functional group coded
item to the level of its least componency identified as maintenance significant (i.e., assigned an SMR code) for
the category of maintenance under consideration.
4Actions - welding, grinding, riveting, straightening, facing, remachinery, and/or resurfacing.
B-3
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