TM-5-2350-377-14-P
ARMORED COMBAT EARTHMOVER (ACE), M9
TECHNICAL MANUAL; OPERATOR'S, UNIT, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL (INCLUDING REPAIR PARTS AND SPECIAL TOOLS LIST) SUPPORTING THE HYDRAULIC BLADE FOLDER-TRACK TENSIONER (HBF-TT)
TM-5-2350-377-14-P - Page 235 of 335
TM 5-2350-377-14&P
MAINTENANCE FUNCTIONS - continued
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 assigned maintenance level is shown as the third position of the Source, Maintenance, and
Recoverability (SMR) code.
i.
Repair. The application of maintenance services, including fault location/troubleshooting, removal/installation,
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.
NOTE
The following definitions are applicable to the "repair" maintenance function:
Services—Inspect, test, service, adjust, align, calibrate, and/or replace.
Fault location/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).
Disassembly/assembly—The step-by-step breakdown (taking apart) of a
spare/functional group coded item to the level of its least component, that
is assigned an SMR
code for the level of maintenance under consideration(i.e., identified as maintenance
significant).
Actions—Welding, grinding, riveting, straightening, facing, machining, and/or resurfacing.
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. 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 (e.g., hours/miles) considered in classifying Army equipment/components.
EXPLANATION OF COLUMNS IN THE MAC
Column (1)—Group Number. Column (1) lists functional group code (FGC) numbers, the purpose of which is to identify
maintenance significant components, assemblies, subassemblies, and modules with the Next Higher Assembly (NHA).
Column (2)—Component/Assembly. Column (2) contains the item names of components, assemblies, subassemblies,
and modules for which maintenance is authorized.
0045 00
0045 00-2
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