Calibrate. To determine and cause corrections to be made or to be
adjusted on instruments of test, measuring, and diagnostic equipment
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
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 the equipment or system.
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 code of the
Source, Maintenance, and Recoverability (SMR) code.