C - SERVICE. To clean, to preserve, to charge, and to add fuel, lubricants, cooling agents, and air. If it is desired
that elements, such as painting and lubricating, be defined separately, they may be so listed.
D - ADJUST. To rectify to the extent necessary to bring Into proper operating range.
E - ALIGN. To adjust specified variable elements of an Item to bring to optimum performance.
F - CALIBRATE. To determine the corrections to be made in the readings of instruments or test equipment used in
precise measurement. Consists of the comparison 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 with the certified
G - INSTALL. To set up for use in an operational environment such as an emplacement, site, or vehicle.
H - REPLACE. To replace unserviceable items with serviceable like items.
I - REPAIR. Those maintenance operations necessary to restore an Item to serviceable condition through correction
of material damage or a specific failure. Repair may be accomplished at each category of maintenance.
J - OVERHAUL. Normally, the highest degree of maintenance performed by the Army In order to minimize time work
in process is consistent with quality and economy of operation. It consists of that maintenance necessary to restore an
Item to completely serviceable condition as prescribed by maintenance standards in technical publications for each Item of
equipment. Overhaul normally does not return an item to like new, zero mileage, or zero hour condition.
K - REBUILD. The highest degree of materiel maintenance. It consists of restoring equipment as nearly as possible
to new condition in accordance with original manufacturing standards. Rebuild is performed only when required by
operational considerations or other paramount factors and then only at the depot maintenance category. Rebuild reduces
to zero the hours or miles the equipment, or component thereof, has been in use.
d. Tools and Equipment. Column 4. This column is Not Applicable.
e. Remarks. Column 5. This column is Not Applicable.