TM 1-1730-232-13&P
B-3. MAINTENANCE FUNCTIONS.
Maintenance functions will be limited to and defined as follows:
a.
Inspect. Inspection determines the serviceability of an item by comparing its physical and mechanical
characteristics with established standards The examination is conducted by using sight, sound, and feel.
b.
Test. Testing verifies the serviceability by measuring the mechanical and hydraulic characteristics of the item
and comparing the measurements with prescribed standards.
c.
Service. Servicing operations are required periodically to keep an item in proper operating condition. Servicing
tasks include cleaning, decontamination, preservation, draining, painting, and replenishment of fuel, lubricants, chemical
fluids, or gases.
d.
Adjust. Adjustments set the prescribed operating limits of an item. Adjustments maintain or regulate specified
parameters, or bring components into proper or exact position.
e.
Align. Alignment brings specified variable elements of an item in line, to ensure optimum or desired
performance.
f.
Calibrate. Calibration is required on instruments or TMDE used for precision measurement. Calibration
compares a certified standard of known accuracy, to the instrument to be checked. Discrepancies in the accuracy of the
instrument being compared, are corrected by adjustment.
g. Remove/Install. Removal and installation of the same item is required when an item must be removed to
perform service or other maintenance functions.
h. Replace. To remove an unserviceable item and install a serviceable counterpart in Its place. "Replace" is
authorized by the MAC and the assigned maintenance level is shown as the 3rd position code of the SMR code.
i. Repair. The application of maintenance services to identity troubles and restore serviceability to an item by
correcting specific damage, fault, malfunction, or failure in a part, subassembly, end item, or system. The services
include fault location and troubleshooting procedures, removal and installation procedures, and disassembly and
assembly procedures.
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. 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.
B-5
