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TM5-4120-387-14
f.
Calibrate.
To determine and cause corrections to be made or to be adjusted
on Instruments or test, measuring, and diagnostic equipments used in precision
measurement.
Consists of comparisons of two instruments, one of which is a
certified standard of known accuracy, to detect and adjust any discrepancy in the
accuracy of the instrument being compared.
Remove/Install.
To remove and install the same item when required to per-
form 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
third position code of the SMR code.
Repair.
The application of maintenance servicesl, 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 material 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
equipments/components.
1Services - Inspect, test, service, adjust, aline, calibrate, and/or replace.
2Fault locate/troubleshoot - 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).
3Disassembly/assemble - encompasses the step-by step taking apart (or
breakdown) of 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 or maintenance under consideration.
4Actions - welding, grinding, riveting, straightening, facing, remachinery,
and/or resurfacing.
B-2
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