D - Depot maintenance
The maintenance functions are defined as follows:
A - INSPECT. To determine serviceability of an item by comparing its physical, mechanical, and electrical
characteristics with established standards.
B - TEST. To verify serviceability and to detect electrical or mechanical failure by use of test equipment.
C - SERVICE. To clean, to preserve, to charge, to paint, and to add fuel, lubricants, cooling agents, and air.
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 comparisons of two instruments, one of which is a certified standard of !mown
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 - REPL&CE. To replace unserviceable items with serviceable assemblies, subassemblies, or parts.
I - REPAIR. To restore an item to serviceable condition. This includes, but is not limited to, inspection, cleaning,
preserving, adjusting, replacing, welding, riveting, and strengthening.
J - OVERHAUL. To restore an item to a completely serviceable condition as prescribed by maintenance serviceability
standards using the Inspect and Repair Only as Necessary (IROAN) technique.
K - REBUILD. To restore an item to a standard as nearly as possible to original or new condition in appearance,
performance, and life expectancy. This is accomplished through complete disassembly of the item, inspection of all
parts or components, re-