Explanation of Columns in Section T1

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

standard.

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.

Tools and Equipment. Column 4. This column is not applicable.

Remarks. Column 1. This column is provided for referencing by code the remarks (Section III) pertinent to the

maintenance functions.

A-3.

Explanation of Columns in Section T1

Reference Code. This column consists of two letters separated by a dash, both of which are references to

Section II. The first letter references column 5 and the second letter references a maintenance function, column 3, A

through K.

Remarks. This column lists information pertinent to the maintenance function being performed, as indicated

on the MAC, Section II.

A-2