MAINTENANCE FUNCTIONS. (continued)
The application of maintenance services 1,
removal/installation, and disassembly/assembly 3 procedures, and maintenance actions 4 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.
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 main tenance performed by the
Army. Overhaul does not normally return an item to like new condition.
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 re build operation includes the act of returning to
zero those age measurements (hours/miles, etc.) considered in classifying Army equipment/components.
Services - inspect, test, service, adjust, aline, calibrate, and/or replace.
Fault 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).
Disassemble/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.
Actions welding, grinding, riveting, straightening, facing, re-machinery, and/or resurfacing.